UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-CSR

                   CERTIFIED SHAREHOLDER REPORT OF REGISTERED
                         MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-6567

                     Van Kampen Municipal Opportunity Trust
               (Exact name of registrant as specified in charter)

              1221 Avenue of the Americas New York, New York 10020
               (Address of principal executive offices) (Zip code)

                                 Ronald Robison
              1221 Avenue of the Americas New York, New York 10020
                     (Name and address of agent for service)

Registrant's telephone number, including area code: 212-762-4000

Date of fiscal year end: 10/31

Date of reporting period: 10/31/06


Item 1. Report to Shareholders

The Trust's annual report transmitted to shareholders pursuant to Rule 30e-1
under the Investment Company Act of 1940 is as follows:

       Welcome, Shareholder

       In this report, you'll learn about how your investment in Van Kampen
       Municipal Opportunity Trust performed during the annual period. The
       portfolio management team will provide an overview of the market
       conditions and discuss some of the factors that affected investment
       performance during the reporting period. In addition, this report
       includes the trust's financial statements and a list of trust investments
       as of October 31, 2006.

       MARKET FORECASTS PROVIDED IN THIS REPORT MAY NOT NECESSARILY COME TO
       PASS. THERE IS NO ASSURANCE THAT THE TRUST WILL ACHIEVE ITS INVESTMENT
       OBJECTIVE. TRUSTS ARE SUBJECT TO MARKET RISK, WHICH IS THE POSSIBILITY
       THAT THE MARKET VALUES OF SECURITIES OWNED BY THE TRUST WILL DECLINE AND
       THAT THE VALUE OF TRUST SHARES MAY THEREFORE BE LESS THAN WHAT YOU PAID
       FOR THEM. ACCORDINGLY, YOU CAN LOSE MONEY INVESTING IN THIS TRUST.

       INCOME MAY SUBJECT CERTAIN INDIVIDUALS TO THE FEDERAL ALTERNATIVE MINIMUM
       TAX (AMT).



                                                                    
         ---------------------------------------------------------------------------------------
            NOT FDIC INSURED             OFFER NO BANK GUARANTEE              MAY LOSE VALUE
         ---------------------------------------------------------------------------------------
                   NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY               NOT A DEPOSIT
         ---------------------------------------------------------------------------------------



Performance Summary as of 10/31/2006



MUNICIPAL OPPORTUNITY TRUST
SYMBOL: VMO
------------------------------------------------------------
AVERAGE ANNUAL                      BASED ON      BASED ON
TOTAL RETURNS                         NAV       MARKET PRICE
                                          

Since Inception (4/24/92)            7.96%          7.03%

10-year                              7.68           8.08

5-year                               7.25           7.14

1-year                               8.71          10.76
------------------------------------------------------------


PERFORMANCE DATA QUOTED REPRESENTS PAST PERFORMANCE, WHICH IS NO GUARANTEE OF
FUTURE RESULTS, AND CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN THE FIGURES
SHOWN. FOR THE MOST RECENT MONTH-END PERFORMANCE FIGURES, PLEASE VISIT
VANKAMPEN.COM OR SPEAK WITH YOUR FINANCIAL ADVISOR. INVESTMENT RETURNS, NET
ASSET VALUE (NAV) AND COMMON SHARE MARKET PRICE WILL FLUCTUATE AND TRUST SHARES,
WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST.

NAV per share is determined by dividing the value of the trust's portfolio
securities, cash and other assets, less all liabilities and preferred shares, by
the total number of common shares outstanding. The common share market price is
the price the market is willing to pay for shares of the trust at a given time.
Common share market price is influenced by a range of factors, including supply
and demand and market conditions. Total return assumes an investment at the
beginning of the period, reinvestment of all distributions for the period in
accordance with the trust's dividend reinvestment plan, and sale of all shares
at the end of the period.

The Lehman Brothers Municipal Bond Index is a broad-based statistical composite
of municipal bonds. The index does not include any expenses, fees or sales
charges, which would lower performance. The index is unmanaged and should not be
considered an investment. It is not possible to invest directly in an index.

                                                                               1


Trust Report

FOR THE 12-MONTH PERIOD ENDED OCTOBER 31, 2006

MARKET CONDITIONS

Against the backdrop of strong economic growth, good employment data and
inflationary pressures stemming from rising oil prices, the Federal Open Market
Committee (the "Fed") continued its tightening campaign during the first eight
months of the reporting period, raising the federal funds target rate six times
to 5.25 percent at the end of June. As the months progressed however, economic
growth moderated as consumer spending and housing weakened while inflation
concerns eased, prompting investors to speculate that the Fed would take a break
from rate increases. In August the Fed did pause, ending a two-year run of 17
consecutive rate increases--the longest stretch of increases in 25 years. At its
subsequent meetings, the Fed again kept its target rate unchanged, and indicated
that any future rate increases would be driven by the weight of economic data.

As a result of the improved outlook for the fixed-income market, yields on
longer-maturity municipal bonds fell dramatically in latter months of the
reporting year, ultimately ending at the lowest level in decades and causing
this segment of the market to earn the best returns. Shorter-maturity municipal
bonds, however, posted the lowest returns as Fed rate hikes moved yields in this
portion of the curve higher. Accordingly, the slope of the municipal yield curve
flattened as the spread between short-term and long-term interest rates
narrowed.

Demand for municipal bonds continued to be strong during the period. In fact,
inflows into municipal bond funds were 55 percent higher year-to-date through
October than for the same period last year, much of which went into high-yield
funds. Because prevailing interest rates were still at relatively low levels,
investors increasingly sought out lower-quality, higher-yielding bonds. The
increased demand for high-yield bonds led this segment of the market to
considerably outperform high-grade issues.

Although municipal bond issuance remained brisk in the last quarter of 2005,
volume declined throughout the remaining months of the period. As of the end of
October, national municipal bond issuance was down 13 percent for 2006. The
reduced supply, coupled with growing demand, further fueled municipal bond
performance.

 2


PERFORMANCE ANALYSIS

The trust's return can be calculated based upon either the market price or the
net asset value (NAV) of its shares. NAV per share is determined by dividing the
value of the trust's portfolio securities, cash and other assets, less all
liabilities and preferred shares, by the total number of common shares
outstanding, while market price reflects the supply and demand for the shares.
As a result, the two returns can differ, as they did during the reporting
period. On both an NAV basis and a market price basis, the trust outperformed
its benchmark index, the Lehman Brothers Municipal Bond Index.

TOTAL RETURNS FOR THE 12-MONTH PERIOD ENDED OCTOBER 31, 2006



---------------------------------------------------------------
      BASED ON     BASED ON     LEHMAN BROTHERS MUNICIPAL
        NAV      MARKET PRICE          BOND INDEX
                                              

       8.71%        10.76%                5.75%
---------------------------------------------------------------


Performance data quoted represents past performance, which is no guarantee of
future results, and current performance may be lower or higher than the figures
shown. Investment return, net asset value and common share market price will
fluctuate and trust shares, when sold, may be worth more or less than their
original cost. See Performance Summary for additional performance information
and index definition.

Throughout the reporting period, we sought opportunities to enhance the
portfolio's yield, while still adhering to our quality-driven investment
discipline. We did so primarily by implementing two general strategies. First,
we increased the portfolio's exposure to lower-rated, higher-yielding
securities. Specifically, we added to holdings in BBB rated credits while
reducing holdings in AAA rated credits. This strategy proved beneficial to
performance as credit spreads in the high-yield segment of the market tightened,
leading high-yield bonds to considerably outperform higher-quality bonds.
Second, we emphasized the long end of the yield curve, favoring bonds with
maturities of 25 to 30 years or more. Given the flattening of the yield curve
during the period, attractive yields were primarily found on the very long end
of the curve and our focus here was additive to performance.

Reflecting our view that interest rates in the Treasury market would continue to
rise, we kept the trust's duration (a measure of interest-rate sensitivity)
shorter than that of the Lehman Brothers Municipal Bond Index for much of the
period. In the latter months, when it appeared that the Fed was done raising
rates, we increased the trust's duration to a more neutral stance. While this
positioning overall was beneficial, the trust could have benefited even more had
we increased the duration earlier in the reporting period. In addition, rising
interest rates made the trust's borrowing activity more expensive, thereby
tempering the benefits of leverage for much of the period. The trust uses
leverage to enhance its dividend to common shareholders. The trust borrows money
at short-term rates through the issuance of preferred shares. The

                                                                               3


proceeds are reinvested in longer-term securities, taking advantage of the
difference between short- and longer-term rates.

In keeping with our focus on high-yielding credits, we increased the trust's
holdings of tobacco settlement revenue bonds, which are BBB rated. The
litigation environment for tobacco companies has become quite favorable, demand
for the bonds remains strong, and the industry continues to prosper. We also
added to holdings in health care bonds, which have benefited from spread
tightening in the sector, and increased exposure to higher education bonds. Our
decision to increase the trust's exposure to these sectors during the period was
additive to performance as they performed strongly.

The trust remained well diversified among the major sectors of the municipal
market. The largest sectors at the end of the period were hospital, airport and
wholesale electric.

The Trustees have approved a procedure whereby the trust may, when appropriate,
repurchase its shares in the open market or in privately negotiated transactions
at a price not above market value or NAV, whichever is lower at the time of
purchase. This may help support the market value of the trust's shares.

There is no guarantee that any sectors mentioned will continue to perform as
discussed herein or that securities in such sectors will be held by the trust in
the future.

CHANGES IN INVESTMENT POLICIES

The Board of Trustees of the trust recently approved the following non-
fundamental investment policy for the trust: The trust may invest up to 20% of
its assets in securities that are rated, at the time of investment, BB/Ba or B
by Standard & Poor's Ratings Service ("S&P"), Moody's Investors Services, Inc.
("Moody's") or Fitch Ratings Ltd. ("Fitch") or that are unrated, but deemed to
be of comparable quality by the Adviser. These securities are regarded as below
investment grade and are commonly referred to as junk bonds, and involve greater
risks than investments in higher-grade securities.

Securities that are in the lower-grade categories generally offer higher yields
than are offered by higher-grade securities of similar maturities, but they also
generally involve greater risks, such as greater credit risk, greater market
risk and volatility, greater liquidity concerns and potentially greater manager
risk. Rated lower-grade debt securities are regarded by S&P, Moody's and Fitch
as predominately speculative with respect to the capacity to pay interest or
repay principal or interest in accordance with their terms. Investors should
carefully consider the risks of owning shares of a trust which invests in
lower-grade securities before investing in the trust.

Lower-grade securities are more susceptible to nonpayment of interest and
principal or default than higher-grade securities. Increases in interest rates
or changes in the economy may significantly affect the ability of lower-grade

 4


income securities to pay interest and to repay principal, to meet projected
financial goals or to obtain additional financing. In the event that an issuer
of securities held by the trust experiences difficulties in the timely payment
of principal and interest and such issuer seeks to restructure the terms of its
borrowings, the trust may incur additional expenses and may determine to invest
additional assets with respect to such issuer or the project or projects to
which the trust's securities relate. Further, the trust may incur additional
expenses to the extent that it is required to seek recovery upon a default in
the payment of interest or the repayment of principal on its portfolio holdings,
and the trust may be unable to obtain full recovery on such amounts.

The secondary market prices of lower-grade securities generally are less
sensitive to changes in interest rates and are more sensitive to real or
perceived general adverse economic changes or specific developments with respect
to the particular issuers than are the secondary market prices of higher-grade
securities. A significant increase in interest rates or a general economic
downturn could severely disrupt the market for lower-grade securities and
adversely affect the market value of such securities. Such events also could
lead to a higher incidence of default by issuers of lower-grade securities as
compared with higher-grade securities. In addition, changes in credit risks,
interest rates, the credit markets or periods of general economic uncertainty
can be expected to result in increased volatility in the market price of
lower-grade securities in the trust and thus in the net asset value of the
trust. Adverse publicity and investor perceptions, whether or not based on
rational analysis, may affect the value, volatility and liquidity of lower-grade
securities.

The markets for lower-grade securities may be less liquid than the markets for
higher-grade securities. To the extent that there is no established retail
market for some of the lower-grade securities in which the trust may invest,
trading in such securities may be relatively inactive. Prices of lower-grade
securities may decline rapidly in the event a significant number of holders
decide to sell. Changes in expectations regarding an individual issuer of
lower-grade securities generally could reduce market liquidity for such
securities and make their sale by the trust more difficult, at least in the
absence of price concessions. The effects of adverse publicity and investor
perceptions may be more pronounced for securities for which no established
retail market exists as compared with the effects on securities for which such a
market does exist. An economic downturn or an increase in interest rates could
severely disrupt the market for such securities and adversely affect the value
of outstanding securities or the ability of the issuers to repay principal and
interest. Further, the trust may have more difficulty selling such securities in
a timely manner and at their stated value than would be the case for securities
for which an established retail market does exist.

The market for lower grade securities may have less available information,
further complicating evaluations and valuations of such securities and placing
more emphasis on the Adviser's experience, judgment and analysis than other
securities.

                                                                               5




RATINGS ALLOCATION AS OF 10/31/2006
                                                             
AAA/Aaa                                                          61.7%
AA/Aa                                                             9.8
A/A                                                               8.3
BBB/Baa                                                          15.5
BB/Ba                                                             0.1
B/B                                                               0.3
Non-Rated                                                         4.3


TOP 5 SECTORS AS OF 10/31/2006
                                                             
Hospital                                                         20.4%
Airport                                                          11.5
Wholesale Electric                                                8.8
General Purpose                                                   8.2
Master Tobacco Settlement                                         6.5


SUMMARY OF INVESTMENTS BY STATE CLASSIFICATION AS OF 10/31/2006
                                                             
California                                                       11.6%
New York                                                         10.1
Texas                                                             8.8
Illinois                                                          7.4
New Jersey                                                        7.3
Washington                                                        4.5
Alabama                                                           3.5
North Carolina                                                    3.4
South Carolina                                                    2.8
Florida                                                           2.7
Arizona                                                           2.6
Kentucky                                                          2.6
Nevada                                                            2.5
Pennsylvania                                                      2.2
Massachusetts                                                     2.1
Georgia                                                           2.0
Missouri                                                          2.0
Oklahoma                                                          1.9
Louisiana                                                         1.9
Indiana                                                           1.9
Colorado                                                          1.7
Puerto Rico                                                       1.3
District of Columbia                                              1.2
Ohio                                                              1.2
Maryland                                                          1.2
Minnesota                                                         1.1
Oregon                                                            1.1
Connecticut                                                       0.9
West Virginia                                                     0.8
Iowa                                                              0.7
Michigan                                                          0.7
Tennessee                                                         0.7
Alaska                                                            0.6
Nebraska                                                          0.5
Wisconsin                                                         0.5



                                                             
                                             (continued on next page)


 6




SUMMARY OF INVESTMENTS BY STATE CLASSIFICATION AS OF 10/31/2006
                                       (continued from previous page)
                                                             
South Dakota                                                      0.4
Virginia                                                          0.4
New Mexico                                                        0.3
New Hampshire                                                     0.3
Utah                                                              0.3
North Dakota                                                      0.1
Wyoming                                                           0.1
Mississippi                                                       0.1
                                                                -----
Total Investments                                               100.0%


Subject to change daily. Provided for informational purposes only and should not
be deemed as a recommendation to buy or sell the securities mentioned or
securities in the sectors shown above. Ratings and summary of investments by
state classification are as a percentage of total investments. Sectors are as a
percentage of total long-term investments. Securities are classified by sectors
that represent broad groupings of related industries. Van Kampen is a wholly
owned subsidiary of a global securities firm which is engaged in a wide range of
financial services including, for example, securities trading and brokerage
activities, investment banking, research and analysis, financing and financial
advisory services. Rating allocations based upon ratings as issued by Standard
and Poor's and Moody's, respectively.

                                                                               7


FOR MORE INFORMATION ABOUT PORTFOLIO HOLDINGS

       Each Van Kampen trust provides a complete schedule of portfolio holdings
       in its semiannual and annual reports within 60 days of the end of the
       trust's second and fourth fiscal quarters. The semiannual reports and the
       annual reports are filed electronically with the Securities and Exchange
       Commission (SEC) on Form N-CSRS and Form N-CSR, respectively. Van Kampen
       also delivers the semiannual and annual reports to trust shareholders,
       and makes these reports available on its public Web site,
       www.vankampen.com. In addition to the semiannual and annual reports that
       Van Kampen delivers to shareholders and makes available through the Van
       Kampen public Web site, each trust files a complete schedule of portfolio
       holdings with the SEC for the trust's first and third fiscal quarters on
       Form N-Q. Van Kampen does not deliver the reports for the first and third
       fiscal quarters to shareholders, nor are the reports posted to the Van
       Kampen public Web site. You may, however, obtain the Form N-Q filings (as
       well as the Form N-CSR and N-CSRS filings) by accessing the SEC's Web
       site, http://www.sec.gov. You may also review and copy them at the SEC's
       Public Reference Room in Washington, DC. Information on the operation of
       the SEC's Public Reference Room may be obtained by calling the SEC at
       (800) SEC-0330. You can also request copies of these materials, upon
       payment of a duplicating fee, by electronic request at the SEC's e-mail
       address (publicinfo@sec.gov) or by writing the Public Reference section
       of the SEC, Washington, DC 20549-0102.

       You may obtain copies of a trust's fiscal quarter filings by contacting
       Van Kampen Client Relations at (800) 847-2424.

 8


PROXY VOTING POLICY AND PROCEDURES AND PROXY VOTING RECORD

       You may obtain a copy of the trust's Proxy Voting Policy and Procedures
       without charge, upon request, by calling toll free (800) 847-2424 or by
       visiting our Web site at www.vankampen.com. It is also available on the
       Securities and Exchange Commission's Web site at http://www.sec.gov.

       You may obtain information regarding how the trust voted proxies relating
       to portfolio securities during the most recent twelve-month period ended
       June 30 without charge by visiting our Web site at www.vankampen.com.
       This information is also available on the Securities and Exchange
       Commission's Web site at http://www.sec.gov.

                                                                               9


Investment Advisory Agreement Approval

Both the Investment Company Act of 1940 and the terms of the Fund's investment
advisory agreement require that the investment advisory agreement between the
Fund and its investment adviser be approved annually both by a majority of the
Board of Trustees and by a majority of the independent trustees voting
separately.

On May 22, 2006, the Board of Trustees, and the independent trustees voting
separately, determined that the terms of the investment advisory agreement are
fair and reasonable and approved the continuance of the investment advisory
contract as being in the best interests of the Fund and its shareholders. In
making its determination, the Board of Trustees considered materials that were
specifically prepared by the investment adviser at the request of the Board and
Fund counsel, and by an independent provider of investment company data
contracted to assist the Board, relating to the contract review process. The
Board also considered information received periodically about the portfolio,
performance, the investment strategy, portfolio management team and fees and
expenses of the Fund. Finally, the Board considered materials it had received in
approving a reorganization of the Fund. The Board of Trustees considered the
contract over a period of several months and the non-management trustees held
sessions both with the investment adviser and separate from the investment
adviser in reviewing and considering the contract.

In approving the investment advisory agreement, the Board of Trustees
considered, among other things, the nature, extent and quality of the services
provided by the investment adviser, the performance, fees and expenses of the
Fund compared to other similar funds and other products, the investment
adviser's expenses in providing the services and the profitability of the
investment adviser and its affiliated companies. The Board of Trustees
considered the extent to which any economies of scale experienced by the
investment adviser are shared with the Fund's shareholders, and the propriety of
breakpoints in the Fund's investment advisory fee schedule. The Board of
Trustees considered comparative advisory fees of the Fund and other investment
companies and/or other products at different asset levels, and considered the
trends in the industry. The Board of Trustees evaluated other benefits the
investment adviser and its affiliates derive from their relationship with the
Fund. The Board of Trustees reviewed information about the foregoing factors and
considered changes, if any, in such information since its previous approval. The
Board of Trustees discussed the financial strength of the investment adviser and
its affiliated companies and the capability of the personnel of the investment
adviser, and specifically the strength and background of its portfolio
management personnel. The Board of Trustees reviewed the statutory and
regulatory requirements for approval and disclosure of investment advisory
agreements. The Board of Trustees, including the independent trustees, evaluated
all of the foregoing and does not believe any single factor or group of factors
control or dominate the review process, and, after considering all factors

 10


together, has determined, in the exercise of its business judgment, that
approval of the investment advisory agreement is in the best interests of the
Fund and its shareholders. The following summary provides more detail on certain
matters considered but does not detail all matters considered.

Nature, Extent and Quality of the Services Provided. On a regular basis, the
Board of Trustees considers the roles and responsibilities of the investment
adviser as a whole and for those specific portfolio management, support and
trading functions servicing the Fund. The trustees discuss with the investment
adviser the resources available and used in managing the Fund. The trustees also
discuss certain other services which are provided on a cost-reimbursement basis
by the investment adviser or its affiliates to the Van Kampen funds including
certain accounting, administrative and legal services. The Board has determined
that the nature, extent and quality of the services provided by the investment
adviser support its decision to approve the investment advisory contract.

Performance, Fees and Expenses of the Fund. On a regular basis, the Board of
Trustees reviews the performance, fees and expenses of the Fund compared to its
peers and to appropriate benchmarks. In addition, the Board spends more focused
time on the performance of the Fund and other funds in the Van Kampen complex,
paying specific attention to underperforming funds. The trustees discuss with
the investment adviser the performance goals and the actual results achieved in
managing the Fund. When considering a fund's performance, the trustees and the
investment adviser place emphasis on trends and longer-term returns (focusing on
one-year, three-year and five-year performance with special attention to
three-year performance) and, when a fund's weighted performance is under the
fund's benchmark, they discuss the causes and where necessary seek to make
specific changes to investment strategy or investment personnel. The Fund
discloses more information about its performance elsewhere in this report. The
trustees discuss with the investment adviser the level of advisory fees for this
Fund relative to comparable funds and other products advised by the adviser and
others in the marketplace. The trustees review not only the advisory fees but
other fees and expenses (whether paid to the adviser, its affiliates or others)
and the Fund's overall expense ratio. The Board has determined that the
performance, fees and expenses of the Fund support its decision to approve the
investment advisory contract.

Investment Adviser's Expenses in Providing the Service and Profitability. At
least annually, the trustees review the investment adviser's expenses in
providing services to the Fund and other funds advised by the investment adviser
and the profitability of the investment adviser. These profitability reports are
put together by the investment adviser with the oversight of the Board. The
trustees discuss with the investment adviser its revenues and expenses,
including among other things, revenues for advisory services, portfolio
management-related expenses, revenue sharing arrangement costs and allocated
expenses both on an aggregate basis and per fund. The Board has determined that
the analysis of the

                                                                              11


investment adviser's expenses and profitability support its decision to approve
the investment advisory contract.

Economies of Scale. On a regular basis, the Board of Trustees considers the size
of the Fund and how that relates to the Fund's expense ratio and particularly
the Fund's advisory fee rate. In conjunction with its review of the investment
adviser's profitability, the trustees discuss with the investment adviser how
more (or less) assets can affect the efficiency or effectiveness of managing the
Fund's portfolio and whether the advisory fee level is appropriate relative to
current asset levels and/or whether the advisory fee structure reflects
economies of scale as asset levels change. The Board has determined that its
review of the actual and potential economies of scale of the Fund support its
decision to approve the investment advisory contract.

Other Benefits of the Relationship. On a regular basis, the Board of Trustees
considers other benefits to the investment adviser and its affiliates derived
from its relationship with the Fund and other funds advised by the investment
adviser. These benefits include, among other things, fees for transfer agency
services provided to the funds, in certain cases research received by the
adviser generated from commission dollars spent on funds' portfolio trading, and
in certain cases distribution or service related fees related to funds' sales.
The trustees review with the investment adviser each of these arrangements and
the reasonableness of its costs relative to the services performed. The Board
has determined that the other benefits received by the investment adviser or its
affiliates support its decision to approve the investment advisory contract.

 12


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            MUNICIPAL BONDS  172.3%
            ALABAMA  6.1%
$   1,000   Alabama Bldg Renovation Fin Auth Rev Rfdg (AMBAC
            Insd)........................................... 5.625%   09/01/24   $  1,069,860
    1,550   Birmingham, AL Arpt Auth Arpt Rev Rfdg (AMBAC
            Insd) (AMT) (a)................................. 5.500    07/01/14      1,621,703
    4,000   Birmingham Baptist Med Ctr AL Spl Care Fac Fin
            Auth Rev Baptist Hlth Sys Inc Ser A............. 5.000    11/15/30      4,103,760
    1,000   Jefferson Cnty, AL Ltd Oblig Sch Wt Ser A....... 5.000    01/01/24      1,048,700
    4,250   Jefferson Cnty, AL Ltd Oblig Sch Wt Ser A....... 5.250    01/01/23      4,549,243
    2,335   Marshall Cnty, AL Hlthcare Ser C................ 6.000    01/01/32      2,523,341
        5   Mobile, AL Indl Dev Brd Solid Waste Disp Rev
            Mobile Energy Svc Co Proj Rfdg.................. 6.950    01/01/20            469
    2,000   Montgomery, AL Wt (AMBAC Insd).................. 5.250    05/01/20      2,170,900
    2,000   Montgomery Cnty, AL Pub Bldg Auth Rev Wts Fac
            Proj (MBIA Insd)................................ 5.000    03/01/31      2,120,000
   14,850   University of AL at Birmingham Hosp Rev Ser A
            (i)............................................. 5.000    09/01/41     15,407,568
                                                                                 ------------
                                                                                   34,615,544
                                                                                 ------------
            ALASKA  1.1%
    1,000   Alaska St Hsg Fin Corp Gen Hsg Ser A (FGIC
            Insd)........................................... 5.250    12/01/41      1,065,310
    5,000   Northern Tob Sec Corp AK Tob Settlement Rev
            Asset Bkd Ser A................................. 5.000    06/01/46      5,067,500
                                                                                 ------------
                                                                                    6,132,810
                                                                                 ------------
            ARIZONA  4.4%
    1,425   Arizona Cap Fac Fin Corp Student Hsg Rev AZ St
            Univ Proj....................................... 6.250    09/01/32      1,516,043
    2,900   Arizona Tourism & Sports Auth Multi Purp Stad
            Fac Ser A (MBIA Insd)........................... 5.375    07/01/22      3,159,492
    1,500   Maricopa Cnty, AZ Stad Dist Rfdg (AMBAC Insd)... 5.375    06/01/19      1,624,470
    2,875   Phoenix, AZ Civic Impt Corp Arpt Rev Jr Lien
            (FGIC Insd) (AMT)............................... 5.375    07/01/29      2,903,146
      610   Pima Cnty, AZ Indl Dev Auth Indl Rev Lease Oblig
            Irvington Proj Tucson Rfdg Ser A (FSA Insd)..... 7.250    07/15/10        612,288
   14,840   University of AZ Med Ctr Corp................... 5.000    07/01/35     15,246,616
                                                                                 ------------
                                                                                   25,062,055
                                                                                 ------------


See Notes to Financial Statements                                             13


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            CALIFORNIA  20.1%
$   2,630   Anaheim, CA Pub Fin Auth Lease Rev Cap Apprec
            Sub Pub Impt Proj Ser C (FSA Insd)..............   *      09/01/20   $  1,465,962
    2,400   Bay Area Govt Assn CA Rev Tax Alloc CA Redev
            Pool Ser A (XLCA Insd).......................... 5.250%   09/01/29      2,582,352
    1,050   California Cnty, CA Tob Sec Agy Asset Bkd Merced
            Cnty Rfdg Ser A................................. 5.125    06/01/38      1,079,316
    2,000   California Cnty, CA Tob Sec Agy Asset Bkd Sonoma
            Cnty Corp Rfdg.................................. 5.125    06/01/38      2,055,840
    1,750   California Cnty, CA Tob Sec Agy Asset Bkd Sonoma
            Cnty Corp Rfdg.................................. 5.250    06/01/45      1,814,137
   15,000   California Hlth Fac Fin Auth Rev Cedars Sinai
            Med Ctr Rfdg (i)................................ 5.000    11/15/34     15,633,250
    1,800   California Hlth Fac Fin Auth Rev Kaiser
            Permanente Ser A................................ 5.000    04/01/37      1,878,228
    2,000   California Pollutn Ctl Fin Auth Solid Waste Disp
            Rev Waste Mgmt Inc Proj Ser B (AMT)............. 5.000    07/01/27      2,063,320
       20   California Rural Home Mtg Fin Auth Single Family
            Mtg Rev Ser C (GNMA Collateralized) (AMT)....... 7.800    02/01/28         20,404
    5,770   California St................................... 5.000    02/01/33      6,039,055
    2,000   California St Dept Wtr Res Pwr Ser A
            (Prerefunded @ 5/01/12)......................... 5.750    05/01/17      2,242,560
    3,500   California St Pub Wk Brd Lease Rev Dept
            Corrections Ser C............................... 5.250    06/01/28      3,728,550
    2,000   California St Pub Wk Brd Lease Rev Dept Mental
            Hlth Coalinga Ser A............................. 5.000    06/01/25      2,106,240
    4,405   California St Tcrs Bny (AMBAC Insd)............. 5.125    10/01/27      4,500,721
    7,000   California Statewide Cmnty Dev Auth Rev
            Daughters of Charity Hlth Ser A................. 5.000    07/01/39      7,192,780
    7,750   California Statewide Cmnty Dev Auth Rev
            Daughters of Charity Hlth Ser A................. 5.250    07/01/30      8,191,362
    5,000   California Statewide Cmnty Dev Auth Rev Hlth Fac
            Adventist Hlth Ser A............................ 5.000    03/01/30      5,194,750
    3,000   California Statewide Cmnty Dev Auth Rev Hlth Fac
            Adventist Hlth Ser A............................ 5.000    03/01/35      3,111,120
    3,600   California Statewide Cmnty Dev Auth Rev Kaiser
            Permanente Ser B................................ 5.000    03/01/41      3,745,476
    5,200   California Statewide Cmnty Dev Auth Rev Kaiser
            Permanente Ser B................................ 5.250    03/01/45      5,531,344
    5,000   Foothill/Eastern Corridor Agy CA Toll Rd Rev Cap
            Apprec Rfdg.....................................   *      01/15/25      1,795,550
    4,000   Foothill/Eastern Corridor Agy CA Toll Rd Rev
            Conv Cap Apprec Sr Lien Ser A (d)............... 7.050    01/01/10      4,427,600


 14                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            CALIFORNIA (CONTINUED)
$   3,000   Los Angeles Cnty, CA Uni Sch Dist Ser A (FSA
            Insd) (Prerefunded @ 7/01/13)................... 5.250%   07/01/19   $  3,308,670
    2,400   Tobacco Sec Auth Northn CA Tob Settlement Rev
            Asset Bkd Ser A1................................ 5.375    06/01/38      2,517,552
    1,600   Tobacco Sec Auth Northn CA Tob Settlement Rev
            Asset Bkd Ser A1................................ 5.500    06/01/45      1,692,384
    6,000   Tobacco Sec Auth Southn CA Tob Settlement Ser
            A-1............................................. 5.000    06/01/37      6,123,060
   12,000   Tobacco Sec Auth Southn CA Tob Settlement Ser
            A-1............................................. 5.125    06/01/46     12,302,520
    1,600   Turlock, CA Hlth Fac Rev Ctf Partn Emanuel Med
            Ctr Inc. ....................................... 5.375    10/15/34      1,686,480
                                                                                 ------------
                                                                                  114,030,583
                                                                                 ------------
            COLORADO  3.0%
    3,000   Colorado Hlth Fac Auth Rev Catholic Hlth
            Initiatives Ser A (d)........................... 5.500    03/01/32      3,259,020
    2,500   Colorado Hlth Fac Auth Rev Covenant Retirement
            Cmnty Inc. ..................................... 5.000    12/01/35      2,552,225
    3,700   Colorado Hlth Fac Auth Rev Evangelical
            Lutheran........................................ 5.000    06/01/35      3,810,334
    1,000   Colorado Hlth Fac Auth Rev Hosp Portercare
            Adventist Hlth (Prerefunded @ 11/15/11)......... 6.500    11/15/31      1,138,660
    1,000   Colorado Hsg Fin Auth Multi-Family Hsg Ins Mtg
            Ser B2 (FHA Gtd) (AMT).......................... 5.800    10/01/28      1,018,870
       61   Colorado Hsg Fin Auth Single Family Pgm Sr Ser
            A2 (AMT)........................................ 7.250    05/01/27         61,893
       30   Colorado Hsg Fin Auth Single Family Pgm Sr Ser
            C1 (AMT)........................................ 7.550    11/01/27         30,467
    1,005   Greeley, CO Multi-Family Rev Hsg Mtg Creek Stone
            (FHA Gtd) (AMT)................................. 5.950    07/01/28      1,031,552
      530   Highlands Ranch Metro Dist No 2 CO (FSA Insd)
            (d)............................................. 6.500    06/15/11        595,725
      470   Highlands Ranch Metro Dist No 2 CO (FSA Insd)... 6.500    06/15/11        527,646
    1,500   Park Creek Metro Dist CO Rev Sr Ltd Tax Ppty
            Rfdg............................................ 5.500    12/01/37      1,582,965
    1,500   University of CO Hosp Auth Rev Ser A............ 5.250    11/15/39      1,576,110
                                                                                 ------------
                                                                                   17,185,467
                                                                                 ------------


See Notes to Financial Statements                                             15


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            CONNECTICUT  1.6%
$   6,500   Connecticut St Spl Oblig Pkg Rev Bradley Intl
            Arpt Ser A (ACA Insd) (AMT)..................... 6.600%   07/01/24   $  7,116,330
    1,000   Hartford, CT Pkg Sys Rev Ser A (Prerefunded @
            7/01/10)........................................ 6.400    07/01/20      1,093,840
    1,000   Mashantucket West Pequot Tribe CT Spl Rev Ser A
            (e)............................................. 5.500    09/01/36      1,044,720
                                                                                 ------------
                                                                                    9,254,890
                                                                                 ------------
            DISTRICT OF COLUMBIA  2.1%
    2,500   District Columbia Rev Gonzaga College (FSA
            Insd)........................................... 5.250    07/01/32      2,682,150
    8,850   Metropolitan WA Auth Sys Ser A (FGIC Insd)
            (AMT)........................................... 5.250    10/01/32      9,303,651
                                                                                 ------------
                                                                                   11,985,801
                                                                                 ------------
            FLORIDA  4.7%
      460   Escambia Cnty, FL Hlth Fac Auth Rev FL Hlthcare
            Fac Ln VHA Pgm (AMBAC Insd)..................... 5.950    07/01/20        480,700
    1,000   Highlands Cnty, FL Hlth Fac Auth Rev Hosp
            Adventist Hlth Sys Ser D........................ 5.000    11/15/35      1,038,810
    2,500   Highlands Cnty, FL Hlth Fac Auth Rev Hosp
            Adventist Hlth Sys Ser C........................ 5.250    11/15/36      2,669,850
    1,000   Lakeland, FL Hosp Sys Rev Lakeland Regl Hlth Sys
            (Prerefunded @ 11/15/12)........................ 5.500    11/15/32      1,106,620
    2,100   Miami-Dade Cnty, FL Aviation Miami Intl Arpt Ser
            A (FGIC Insd) (AMT)............................. 5.375    10/01/27      2,227,890
    2,500   Miami-Dade Cnty, FL Aviation Miami Intl Arpt
            (FGIC Insd) (AMT)............................... 5.375    10/01/32      2,644,600
    2,160   North Broward, FL Hosp Dist Rev Impt
            (Prerefunded @ 1/15/11)......................... 6.000    01/15/31      2,378,657
      215   North Broward, FL Hosp Dist Rev Impt............ 6.000    01/15/31        230,792
   13,150   South FL Wtr Mgmt Dist Ctfs Partn (AMBAC Insd)
            (f)............................................. 5.000    10/01/36     13,979,239
                                                                                 ------------
                                                                                   26,757,158
                                                                                 ------------
            GEORGIA  3.4%
    1,000   Atlanta, GA Arpt Rev Ser B (FGIC Insd) (AMT).... 5.625    01/01/30      1,055,270
    1,383   Fulton Cnty, GA Lease Rev (Acquired 12/23/1994,
            Cost $1,382,772) (b)............................ 7.250    06/15/10      1,415,876
    7,000   Georgia Muni Elec Auth Pwr Rev Ser A (MBIA
            Insd)........................................... 6.500    01/01/20      8,789,620
    3,770   Monroe Cnty, GA Dev Auth Pollutn Ctl Rev
            Oglethorpe Pwr Corp Scherer Ser A............... 6.800    01/01/12      4,277,442


 16                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            GEORGIA (CONTINUED)
$   2,500   Municipal Elec Auth GA Combustion Turbine Proj
            Ser A (MBIA Insd)............................... 5.250%   11/01/21   $  2,691,475
    1,000   Oconee Cnty, GA Indl Dev Auth Rev Oiit Proj
            (XLCA Insd)..................................... 5.250    07/01/25      1,064,930
                                                                                 ------------
                                                                                   19,294,613
                                                                                 ------------
            ILLINOIS  12.8%
    3,750   Bolingbrook, IL Cap Apprec Ser B (MBIA Insd)....   *      01/01/30      1,097,550
    3,150   Chicago, IL O'Hare Intl Arpt Rev Gen Arpt Third
            Lien Rfdg Ser A (MBIA Insd) (AMT)............... 5.375    01/01/32      3,347,915
   10,900   Chicago, IL O'Hare Intl Arpt Rev Gen Arpt Third
            Lien Ser A (MBIA Insd) (i)...................... 5.250    01/01/24     12,135,480
   10,000   Chicago, IL O'Hare Intl Arpt Rev Gen Arpt Third
            Lien Ser A (MBIA Insd) (i)...................... 5.250    01/01/25     11,133,468
    1,885   Chicago, IL Pk Dist Ser C (FGIC Insd)
            (Prerefunded @ 7/01/11)......................... 5.500    01/01/19      2,042,115
      615   Chicago, IL Pk Dist Ser C (FGIC Insd)........... 5.500    01/01/19        661,057
       15   Chicago, IL Single Family Mtg Rev Ser A (GNMA
            Collateralized) (AMT)........................... 7.000    09/01/27         15,399
    4,500   Cook Cnty, IL Cap Impt Ser A (FGIC Insd)........ 5.000    11/15/23      4,676,580
    6,000   Illinois Fin Auth Rev Northwestern Mem Hosp Ser
            A............................................... 5.500    08/15/43      6,588,420
    3,630   Kendall, Kane & Will Cntys, IL Cmnty Unit Sch
            Dist No 308 Ser B (FGIC Insd) (a)............... 5.250    10/01/20      3,913,430
    1,925   Kendall, Kane & Will Cntys, IL Cmnty Unit Sch
            Dist No 308 Ser B (FGIC Insd)................... 5.250    10/01/21      2,075,304
    6,000   Metropolitan Pier & Expo Auth IL Dedicated St
            Tax Rev McCormick Pl Expn Proj Ser A (MBIA
            Insd)........................................... 5.250    06/15/42      6,438,660
    1,250   Metropolitan Pier & Expo Auth IL Dedicated St
            Tax Rev McCormick Pl Expn Proj Ser A (FGIC
            Insd)........................................... 5.375    12/15/18      1,320,963
    2,000   Metropolitan Pier & Expo Auth IL Dedicated St
            Tax Rev McCormick Pl Expn Proj Ser A (FGIC
            Insd)........................................... 5.500    12/15/24      2,121,160
    3,000   Pekin, IL Mtg Rev United Auto Workers Inc Proj
            Ser A (GNMA Collateralized)..................... 5.250    05/20/34      3,075,810
    5,000   Regional Tran Auth IL Ser B (AMBAC Insd)........ 8.000    06/01/17      6,725,650
    5,000   University IL Univ Rev Aux Sys Fac Rfdg Ser A
            (AMBAC Insd).................................... 5.000    04/01/30      5,168,700
                                                                                 ------------
                                                                                   72,537,661
                                                                                 ------------
            INDIANA  3.2%
    1,000   Allen Cnty, IN Juvenile Just Ctr First Mtg
            (AMBAC Insd).................................... 5.500    01/01/18      1,086,510
    3,270   Allen Cnty, IN War Mem Coliseum Ser A (AMBAC
            Insd) (a)....................................... 5.500    11/01/16      3,565,216
    8,240   Indiana Hlth Fac Fin Auth Hosp Rev Cmnty Proj
            Ser A (AMBAC Insd).............................. 5.000    05/01/35      8,656,037


See Notes to Financial Statements                                             17


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            INDIANA (CONTINUED)
$   2,000   Indiana Hlth Fac Fin Auth Hosp Rev Columbus Regl
            Hosp Rfdg (FSA Insd)............................ 7.000%   08/15/15   $  2,332,600
    2,500   Indiana St Dev Fin Auth Rev Exempt Fac Conv Rfdg
            (AMT)........................................... 5.950    08/01/30      2,566,725
                                                                                 ------------
                                                                                   18,207,088
                                                                                 ------------
            IOWA  1.3%
    1,890   Des Moines, IA Pub Pkg Sys Rev Ser A (FGIC Insd)
            (a)............................................. 5.750    06/01/17      2,023,755
    2,500   Tobacco Settlement Auth IA Rev Asset Bkd Ser
            C............................................... 5.500    06/01/42      2,635,300
    2,500   Tobacco Settlement Auth IA Rev Asset Bkd Ser
            C............................................... 5.625    06/01/46      2,657,150
                                                                                 ------------
                                                                                    7,316,205
                                                                                 ------------
            KENTUCKY  4.1%
    1,475   Kenton Cnty, KY Arpt Brd Rev Cincinnati/Northn
            KY Intl Arpt Rfdg Ser A (MBIA Insd) (AMT)....... 6.200    03/01/08      1,522,583
    1,995   Kentucky Hsg Corp Hsg Rev Ser F (FNMA
            Collateralized) (AMT)........................... 5.450    01/01/32      2,058,840
   14,295   Louisville & Jefferson Cnty, KY Metro Govt Hlth
            Sys Rev Norton Hlthcare Inc (i)................. 5.250    10/01/36     14,998,219
    4,500   Louisville & Jefferson Cnty, KY Metro Govt Indl
            Bldg Rev Sisters of Mercy Cincinnati............ 5.000    10/01/35      4,645,125
                                                                                 ------------
                                                                                   23,224,767
                                                                                 ------------
            LOUISIANA  3.2%
    5,000   Lafayette, LA Util Rev (MBIA Insd).............. 5.250    11/01/23      5,456,500
       65   Louisiana Hsg Fin Agy Mtg Rev Single Family
            Access Pgm Ser B (GNMA Collateralized) (AMT).... 8.000    03/01/25         66,316
    1,960   Louisiana Hsg Fin Agy Rev Azalea Estates Rfdg
            Ser A (GNMA Collateralized) (AMT)............... 5.375    10/20/39      2,060,685
    3,000   Louisiana St Energy & Pwr Auth Pwr Proj Rev Rfdg
            (FSA Insd)...................................... 5.750    01/01/12      3,284,430
    7,000   Louisiana St Gas & Fuels Tax Rev Ser A (i)...... 5.000    05/01/41      7,409,675
                                                                                 ------------
                                                                                   18,277,606
                                                                                 ------------
            MARYLAND  2.0%
      500   Baltimore, MD Convention Ctr Hotel Rev Drivers
            Ser 1251 (XLCA Insd) (Acquired 2/06/2006, Cost
            $588,545) (b) (c)............................... 9.367    03/01/14        696,290
    2,050   Maryland St Econ Dev Corp Student Hsg Rev Univ
            MD College Pk Proj Rfdg (Prerefunded @
            6/01/13)........................................ 5.625    06/01/35      2,275,849
    2,000   Maryland St Hlth & Higher Ed Fac Auth Rev
            Medstar Hlth Rfdg............................... 5.375    08/15/24      2,135,440


 18                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            MARYLAND (CONTINUED)
$   1,200   Maryland St Hlth & Higher Ed Fac Auth Rev Union
            Hosp Cecil Cnty Issue........................... 5.000%   07/01/40   $  1,244,952
    4,710   Northeast, MD Waste Disp Auth Rfdg (AMBAC Insd)
            (AMT)........................................... 5.500    04/01/16      5,097,350
                                                                                 ------------
                                                                                   11,449,881
                                                                                 ------------
            MASSACHUSETTS  3.7%
    3,955   Massachusetts Bay Trans Auth Gen Trans Sys Rfdg
            Ser A........................................... 5.500    03/01/12      4,218,007
    4,800   Massachusetts St Dev Fin Agy Rev College
            Pharmacy & Allied Hlth Ser D (AGL Insd)......... 5.000    07/01/35      5,021,232
    3,000   Massachusetts St Dev Fin Agy Semass Sys Ser A
            (MBIA Insd)..................................... 5.625    01/01/16      3,282,120
    1,000   Massachusetts St Hlth & Ed Fac Auth Rev Partn
            Hlthcare Sys Ser C.............................. 5.750    07/01/32      1,088,090
    1,000   Massachusetts St Hlth & Ed Fac Auth Rev Saint
            Mem Med Ctr Ser A............................... 6.000    10/01/23      1,001,120
    6,050   Massachusetts St Hlth & Ed Fac Auth Rev Univ MA
            Mem Issue Ser D................................. 5.000    07/01/33      6,179,773
                                                                                 ------------
                                                                                   20,790,342
                                                                                 ------------
            MICHIGAN  1.3%
    3,505   Detroit, MI Wtr Supply Sys Ser B (MBIA Insd)
            (Prerefunded @ 7/01/13) (a)..................... 5.250    07/01/18      3,841,620
    3,000   Kent Hosp Fin Auth MI Rev Metro Hosp Proj Ser
            A............................................... 6.250    07/01/40      3,365,100
                                                                                 ------------
                                                                                    7,206,720
                                                                                 ------------
            MINNESOTA  2.0%
      990   Chaska, MN Elec Rev Ser A (Prerefunded @
            10/01/10)....................................... 6.100    10/01/30      1,081,327
       10   Chaska, MN Elec Rev Ser A....................... 6.100    10/01/30         10,834
    1,150   Maple Grove, MN Hlthcare Fac Rev North Mem
            Hlthcare........................................ 5.000    09/01/35      1,194,436
    2,200   Saint Paul, MN Hsg & Redev Auth Hosp Rev Hlth
            East Proj....................................... 6.000    11/15/30      2,457,532
    2,000   Saint Paul, MN Hsg & Redev Auth Hosp Rev Hlth
            East Proj....................................... 6.000    11/15/35      2,223,400
    3,875   Saint Paul, MN Port Auth Lease Rev Office Bldg
            at Cedar Str (a)................................ 5.250    12/01/19      4,237,313
                                                                                 ------------
                                                                                   11,204,842
                                                                                 ------------
            MISSISSIPPI  0.2%
      260   Mississippi Home Corp Single Family Rev Mtg Ser
            F (GNMA Collateralized) (AMT)................... 7.550    12/01/27        268,713
      610   Mississippi Home Corp Single Family Rev Mtg Ser
            C (GNMA Collateralized) (AMT)................... 7.600    06/01/29        616,984
                                                                                 ------------
                                                                                      885,697
                                                                                 ------------


See Notes to Financial Statements                                             19


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            MISSOURI  3.2%
$   2,150   Cape Girardeau Cnty, MO Indl Southeast MO Hosp
            Assoc........................................... 5.500%   06/01/22   $  2,250,169
    1,345   Kansas City, MO Metro Cmnty Leasehold Jr College
            Impt & Rfdg (FGIC Insd)......................... 5.500    07/01/17      1,451,712
    1,375   Missouri St Hlth & Ed Fac Auth Rev Sr Living Fac
            Lutheran Ser A.................................. 5.375    02/01/35      1,444,383
    1,210   Saint Louis, MO Arpt Rev Cap Impt Pgm Ser A
            (MBIA Insd)..................................... 5.375    07/01/18      1,306,594
    3,000   Sikeston, MO Elec Rev Rfdg (MBIA Insd).......... 6.200    06/01/10      3,181,980
    8,500   Springfield, MO Pub Util Rev (FGIC Insd)........ 4.500    08/01/36      8,502,805
                                                                                 ------------
                                                                                   18,137,643
                                                                                 ------------
            NEBRASKA  0.9%
    5,000   Omaha, NE Pub Pwr Dist Elec Rev Sys Ser A....... 5.000    02/01/39      5,220,450
                                                                                 ------------

            NEVADA  4.4%
   15,000   Clark Cnty, NV Arpt Rev Sub Lien Ser A-2 (FGIC
            Insd)........................................... 5.000    07/01/36     15,683,700
    2,800   Clark Cnty, NV Indl Dev Rev Southwest Gas Corp
            Proj Ser A (FGIC Insd) (AMT).................... 4.750    09/01/36      2,837,856
    6,000   Clark Cnty, NV Indl Dev Rev Southwest Gas Corp
            Proj Ser A (AMBAC Insd) (AMT)................... 5.250    07/01/34      6,346,500
                                                                                 ------------
                                                                                   24,868,056
                                                                                 ------------
            NEW HAMPSHIRE  0.6%
    1,155   New Hampshire Hlth & Ed Fac Auth Rev Derryfield
            Sch............................................. 7.000    07/01/30      1,259,839
      845   New Hampshire Hlth & Ed Fac Univ Sys of NH
            (AMBAC Insd).................................... 5.500    07/01/15        917,856
    1,000   New Hampshire St Bus Fin Auth Wtr Fac Rev
            Pennichuck Wtrwks Inc (AMBAC Insd) (AMT)........ 6.300    05/01/22      1,032,410
                                                                                 ------------
                                                                                    3,210,105
                                                                                 ------------

            NEW JERSEY  12.7%
    3,110   Newark, NJ Hsg Auth Port Auth Newark Marine
            Terminal (MBIA Insd)............................ 5.250    01/01/20      3,365,082
    5,000   New Jersey Econ Dev Auth Mtr Veh Rev Ser A (MBIA
            Insd)........................................... 5.000    07/01/22      5,374,900
    2,700   New Jersey Econ Dev Auth Rev Cig Tax............ 5.750    06/15/29      2,940,300
    2,000   New Jersey Econ Dev Auth Rev Cig Tax............ 5.750    06/15/34      2,164,520
    3,000   New Jersey Econ Dev Auth Rev Mtr Veh Sur Rev Ser
            A (MBIA Insd)................................... 5.000    07/01/23      3,180,990
   30,000   New Jersey Econ Dev Auth St Contract Econ
            Recovery (MBIA Insd)............................ 5.900    03/15/21     36,165,000


 20                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            NEW JERSEY (CONTINUED)
$   8,000   New Jersey Econ Dev Auth Wtr Fac Rev NJ Amer Wtr
            Co Inc Proj Ser A (FGIC Insd) (AMT)............. 6.875%   11/01/34   $  8,021,200
   10,000   New Jersey St Ed Fac Auth Higher Ed Cap Impt Ser
            A (AMBAC Insd) (Prerefunded @ 9/01/12).......... 5.250    09/01/21     10,879,900
                                                                                 ------------
                                                                                   72,091,892
                                                                                 ------------
            NEW MEXICO  0.6%
    2,020   University NM Univ Rev Sub Lien Rfdg Ser A
            (a)............................................. 5.250    06/01/20      2,171,823
    1,125   University NM Univ Rev Sub Lien Rfdg Ser A...... 5.250    06/01/21      1,209,555
                                                                                 ------------
                                                                                    3,381,378
                                                                                 ------------
            NEW YORK  17.5%
    5,000   Long Island, NY Pwr Auth Elec Sys Rev Gen Ser
            B............................................... 5.000    12/01/35      5,274,350
    5,000   Nassau Cnty, NY Tob Settlement Corp Asset Bkd
            Ser A-3......................................... 5.000    06/01/35      5,124,150
    1,000   Nassau Cnty, NY Tob Settlement Corp Asset Bkd
            Ser A-3......................................... 5.125    06/01/46      1,032,840
    3,720   New York City Ser A............................. 7.000    08/01/07      3,785,472
   11,000   New York City Hsg Dev Corp Multi-Family Rent Hsg
            Rev Progress of Peoples Dev Ser B (FNMA
            Collateralized) (AMT)........................... 4.950    05/15/36     11,233,750
    1,255   New York City Indl Dev Civic YMCA Gtr NY Proj... 5.800    08/01/16      1,284,129
    5,000   New York City Trans Fin Auth Rev Future Tax Secd
            Rfdg Ser A (g).................................. 5.500/14.000 11/01/26    5,406,000
    2,525   New York St Dorm Auth Lease Rev Muni Hlth Fac
            Impt Pgm Ser A (FSA Insd)....................... 5.500    05/15/25      2,601,381
    1,625   New York St Dorm Auth Lease Rev St Univ Dorm Fac
            Ser A (Prerefunded @ 7/01/10)................... 6.000    07/01/14      1,778,172
      650   New York St Dorm Auth Rev Ser B (Prerefunded @
            5/15/10)........................................ 7.500    05/15/11        721,805
      885   New York St Dorm Auth Rev Ser B................. 7.500    05/15/11        982,881
    3,100   New York St Dorm Auth Rev City Univ Sys Cons Ser
            A............................................... 5.625    07/01/16      3,498,288
    2,600   New York St Dorm Auth Rev Cons City Univ Sys
            Second Gen Ser A................................ 5.750    07/01/13      2,851,524
    2,535   New York St Dorm Auth Rev Mental Hlth Ser B..... 5.750    08/15/11      2,598,933
      500   New York St Dorm Auth Rev Mental Hlth Ser A..... 5.750    08/15/12        512,850
        5   New York St Dorm Auth Rev Mental Hlth Svcs Fac
            Ser A (Prerefunded @ 2/15/07)................... 5.750    08/15/12          5,131
    2,040   New York St Dorm Auth Rev Secd Hosp Gen Hosp
            Rfdg............................................ 5.750    02/15/18      2,258,729
    5,000   New York St Dorm Auth Rev St Univ Ed Fac Ser A.. 5.500    05/15/08      5,141,300
    1,500   New York St Dorm Auth Rev Upstate Cmnty Colleges
            Ser B........................................... 5.250    07/01/20      1,627,305


See Notes to Financial Statements                                             21


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            NEW YORK (CONTINUED)
$   1,000   New York St Dorm Auth Rev Upstate Cmnty Colleges
            Ser B........................................... 5.250%   07/01/21   $  1,083,490
    3,780   New York St Mtg Agy Rev Ser 101 (AMT)........... 5.400    04/01/32      3,908,369
    1,055   New York St Mtg Agy Rev Homeowner Mtg Ser 82
            (AMT)........................................... 5.650    04/01/30      1,063,640
   15,000   Port Auth NY & NJ Cons Ser 144 (i).............. 5.000    10/01/35     15,958,350
    4,000   Port Auth NY & NJ Spl Oblig Rev Spl Proj JFK
            Intl Arpt Terminal 6 (MBIA Insd) (AMT).......... 5.750    12/01/22      4,164,560
   12,960   TSASC Inc NY Ser 1.............................. 5.000    06/01/34     13,281,797
    2,150   Westchester, NY Tob Asset Sec Corp. ............ 5.125    06/01/38      2,217,682
                                                                                 ------------
                                                                                   99,396,878
                                                                                 ------------
            NORTH CAROLINA  5.9%
    1,500   North Carolina Eastn Muni Pwr Agy Pwr Sys Rev
            Ser D........................................... 6.700    01/01/19      1,632,705
    7,000   North Carolina Muni Pwr Agy Ser A (MBIA Insd)... 5.250    01/01/19      7,546,980
   22,000   North Carolina Muni Pwr Agy No 1 Catawba Elec
            Rev Rfdg (MBIA Insd)............................ 6.000    01/01/12     24,429,460
                                                                                 ------------
                                                                                   33,609,145
                                                                                 ------------
            NORTH DAKOTA  0.2%
      380   North Dakota St Hsg Fin Agy Ser C (AMT)......... 5.550    07/01/29        382,797
      775   North Dakota St Hsg Fin Agy Rev Hsg Fin Pgm Home
            Mtg Fin Ser B (MBIA Insd) (AMT)................. 5.500    07/01/29        785,602
                                                                                 ------------
                                                                                    1,168,399
                                                                                 ------------
            OHIO  2.0%
    1,000   Cleveland-Cuyahoga Cnty, OH Port Auth Rev
            Student Hsg Euclid Ave Fenn Proj (AMBAC Insd)... 5.000    08/01/28      1,056,140
    1,000   Cleveland, OH Muni Sch Dist (FSA Insd).......... 5.250    12/01/24      1,090,600
    1,500   Cuyahoga Cnty, OH Hosp Fac Rev Canton Inc Proj.. 7.500    01/01/30      1,667,730
    2,000   Lorain Cnty, OH Hosp Rev Catholic Hlthcare...... 5.375    10/01/30      2,119,220
    2,450   Lorain Cnty, OH Hosp Rev Catholic Hlthcare Impt
            & Rfdg Ser A.................................... 5.250    10/01/33      2,574,730
    3,000   Lucas Cnty, OH Hosp Rev Promedica Hlthcare Oblig
            Rfdg (MBIA Insd)................................ 6.000    11/15/07      3,065,700
                                                                                 ------------
                                                                                   11,574,120
                                                                                 ------------
            OKLAHOMA  3.2%
    3,410   Jenks, OK Aquarium Auth Rev Rfdg (MBIA Insd)
            (a)............................................. 5.250    07/01/24      3,705,783
    1,475   Jenks, OK Aquarium Auth Rev Rfdg (MBIA Insd).... 5.250    07/01/33      1,600,906
    3,970   McAlester, OK Pub Wk Auth Util Cap Apprec (FSA
            Insd)...........................................   *      02/01/34      1,199,734
    2,250   Oklahoma City, OK Pub Ppty Auth Hotel Tax Rev
            (FGIC Insd)..................................... 5.250    10/01/29      2,445,930
    1,065   Oklahoma Dev Fin Auth Lease Rev OK Council Law
            Enforcement (MBIA Insd) (a)..................... 5.500    06/01/17      1,162,266


 22                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            OKLAHOMA (CONTINUED)
$   1,120   Oklahoma Dev Fin Auth Lease Rev OK Council Law
            Enforcement (MBIA Insd) (a)..................... 5.500%   06/01/18   $  1,221,114
    1,185   Oklahoma Dev Fin Auth Lease Rev OK Council Law
            Enforcement (MBIA Insd) (a)..................... 5.500    06/01/19      1,291,982
    2,250   Tulsa Cnty, OK Pub Fac Auth Cap Impt Rev (AMBAC
            Insd) (Prerefunded @ 11/01/09) (h).............. 6.250    11/01/22      2,462,940
    3,140   Tulsa, OK Indl Auth Hosp Rev Hillcrest Med Cent
            Proj Rfdg (Connie Lee Insd) (a) (d)............. 6.250    06/01/08      3,267,076
                                                                                 ------------
                                                                                   18,357,731
                                                                                 ------------
            OREGON  1.9%
    5,000   Oregon Hlth Sciences Univ Insd Ser A (MBIA
            Insd)........................................... 5.250    07/01/22      5,386,400
    5,000   Oregon St Dept Admin Rfdg Ser C (MBIA Insd)..... 5.250    11/01/18      5,360,650
                                                                                 ------------
                                                                                   10,747,050
                                                                                 ------------
            PENNSYLVANIA  3.8%
    2,210   Chartiers Vly, PA Sch Dist Ser A (FSA Insd)
            (a)............................................. 5.250    10/15/19      2,425,011
    2,750   Hempfield, PA Area Sch Dist Westmoreland Cnty
            Ser A (FGIC Insd)............................... 5.250    03/15/19      3,015,072
    6,515   Hempfield, PA Area Sch Dist Westmoreland Cnty
            Ser A (FGIC Insd) (a)........................... 5.250    03/15/20      7,129,039
    3,000   Susquehanna Area Regl Arpt Auth PA Ser A (AMBAC
            Insd) (AMT)..................................... 5.375    01/01/21      3,194,430
    5,415   Susquehanna Area Regl Arpt Auth PA Ser A (AMBAC
            Insd) (AMT) (a)................................. 5.375    01/01/22      5,762,914
                                                                                 ------------
                                                                                   21,526,466
                                                                                 ------------
            SOUTH CAROLINA  4.8%
    2,500   Charleston Ed Excellence Fin Corp SC Rev
            Charleston Cnty Sch Dist (i).................... 5.250    12/01/25      2,687,162
    7,500   Charleston Ed Excellence Fin Corp SC Rev
            Charleston Cnty Sch Dist (i).................... 5.250    12/01/26      8,061,488
    5,000   Easley, SC Util Rev Impt & Comb Rfdg (FSA
            Insd)........................................... 5.000    12/01/34      5,285,750
    2,000   Laurens Cnty, SC Sch Dist No 55 Installment Pur
            Rev............................................. 5.250    12/01/30      2,117,640
    5,000   South Carolina Jobs Econ Dev Auth Indl Rev Elec
            & Gas Co Proj Ser A (AMBAC Insd)................ 5.200    11/01/27      5,330,450
    3,750   South Carolina Jobs Econ Dev Auth Indl Rev Elec
            & Gas Co Proj Ser B (AMBAC Insd) (AMT).......... 5.450    11/01/32      3,990,825
                                                                                 ------------
                                                                                   27,473,315
                                                                                 ------------


See Notes to Financial Statements                                             23


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            SOUTH DAKOTA  0.7%
$   1,375   Deadwood, SD Ctf Partn (ACA Insd)............... 6.375%   11/01/20   $  1,475,911
    2,500   South Dakota St Hlth & Ed Fac Auth Rev Sioux Vly
            Hosp & Hlth Sys Ser A........................... 5.250    11/01/34      2,627,900
                                                                                 ------------
                                                                                    4,103,811
                                                                                 ------------
            TENNESSEE  1.3%
    1,750   Chattanooga, TN Hlth Ed & Hsg Fac Brd Rev CDFI
            Phase I LLC Proj Rfdg Ser A..................... 5.125    10/01/35      1,778,088
    2,000   Elizabethton, TN Hlth & Ed Fac Brd Rev Impt Hosp
            First Mtg Rfdg Ser B............................ 8.000    07/01/33      2,372,580
    1,500   Elizabethton, TN Hlth & Ed Fac Brd Rev Impt Hosp
            Rfdg Ser B (MBIA Insd).......................... 7.750    07/01/29      1,824,525
    1,000   Johnson City, TN Hlth & Ed Fac Brd Hosp Rev
            First Mtg Mtn St Hlth Rfdg Ser A (MBIA Insd).... 7.500    07/01/25      1,214,070
                                                                                 ------------
                                                                                    7,189,263
                                                                                 ------------
            TEXAS  14.6%
    2,000   Alliance Arpt Auth Inc TX Spl Fac Rev FedEx Corp
            Proj Rfdg (AMT)................................. 4.850    04/01/21      2,032,900
    2,350   Austin, TX Ctf Oblig (MBIA Insd) (a)............ 5.375    09/01/20      2,550,220
    2,545   Dallas Cnty, TX Cmnty College Fin Sys (AMBAC
            Insd) (a)....................................... 5.375    02/15/17      2,676,933
    8,000   Dallas-Fort Worth, TX Intl Arpt Rev Jt Ser A
            (FSA Insd) (AMT)................................ 5.500    11/01/21      8,734,000
    4,000   Dallas-Fort Worth, TX Intl Arpt Rev Jt Ser A
            (FGIC Insd) (AMT)............................... 5.750    11/01/30      4,213,040
    5,500   Dallas-Fort Worth, TX Intl Arpt Rev Jt Impt &
            Rfdg Ser A (FGIC Insd) (AMT).................... 5.500    11/01/31      5,874,385
    2,000   Harris Cnty, TX Hlth Fac Dev Corp Hosp Rev Mem
            Hermann Hlthcare Ser A (Prerefunded @
            6/01/11)........................................ 6.375    06/01/29      2,246,780
   10,000   Houston, TX Arpt Sys Rev Sub Lien Ser A (FSA
            Insd) (AMT)..................................... 5.125    07/01/32     10,336,200
    2,000   Houston, TX Arpt Sys Rev Sub Lien (FSA Insd).... 5.500    07/01/20      2,176,540
    3,000   Houston, TX Arpt Sys Rev Sub Lien Ser A (FSA
            Insd) (AMT)..................................... 5.625    07/01/30      3,168,210
   12,000   Houston, TX Util Sys Rev First Lien Rfdg Ser A
            (FSA Insd)...................................... 5.250    05/15/21     13,041,000
    2,185   Lower CO Riv Auth TX Transmission Contract Rev
            LCRA Svc Corp Proj Rfdg (FGIC Insd)............. 5.000    05/15/24      2,282,211
    2,185   Lower CO Riv Auth TX Transmission Contract Rev
            LCRA Svc Corp Proj Rfdg (FGIC Insd)............. 5.000    05/15/25      2,287,760
    4,000   Lower CO Riv Auth TX Transmission Contract Rev
            LCRA Svc Corp Proj Rfdg (FGIC Insd)............. 5.000    05/15/33      4,126,760
    1,000   Matagorda Cnty, TX Navig Dist No 1 Rev Coll
            Centerpoint Energy Proj Rfdg.................... 5.600    03/01/27      1,059,060


 24                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            TEXAS (CONTINUED)
$   3,000   Metropolitan Hlth Fac Dev Corp TX Wilson N Jones
            Mem Hosp Proj................................... 7.250%   01/01/31   $  3,106,860
   10,000   North Cent, TX Hlth Fac Dev Hosp Childrens Med
            Ctr Dallas (AMBAC Insd)......................... 5.250    08/15/32     10,606,800
    2,360   University of TX Univ Rev Fin Sys Ser B......... 5.250    08/15/20      2,563,668
                                                                                 ------------
                                                                                   83,083,327
                                                                                 ------------
            UTAH  0.5%
    2,380   Mountain Regl Wtr Spl Svc Dist Rfdg (MBIA
            Insd)........................................... 5.000    12/15/33      2,498,286
                                                                                 ------------

            VIRGINIA  0.7%
    2,000   Tobacco Settlement Fin Corp VA Asset Bkd........ 5.500    06/01/26      2,128,720
    1,670   Tobacco Settlement Fin Corp VA Asset Bkd........ 5.625    06/01/37      1,783,477
                                                                                 ------------
                                                                                    3,912,197
                                                                                 ------------
            WASHINGTON  7.8%
    9,850   Bellevue, WA Convention Ctr Auth Spl Oblig Rev
            Comp Int Rfdg (MBIA Insd).......................   *      02/01/25      4,451,215
    7,500   Chelan Cnty, WA Pub Util Dist No 001 Cons Rev
            Chelan Hydro Ser A (MBIA Insd) (AMT)............ 5.600    01/01/36      8,073,075
    5,000   Energy Northwest WA Elec Rev Columbia Generating
            Rfdg Ser A (FSA Insd)........................... 5.500    07/01/16      5,435,600
    2,500   Energy Northwest WA Elec Rev Proj No 3 Rfdg Ser
            A (FSA Insd).................................... 5.500    07/01/18      2,713,875
    5,000   Energy Northwest WA Elec Rev Proj No 3 Rfdg Ser
            B (FSA Insd).................................... 6.000    07/01/16      5,599,000
    2,000   Port Seattle, WA Rev Ser B (MBIA Insd) (AMT).... 5.625    02/01/24      2,114,500
    2,120   Seattle, WA Muni Lt & Pwr Rev................... 5.625    12/01/17      2,270,372
    3,000   Spokane, WA Pub Fac Dist Hotel Motel & Sales Use
            Tax (MBIA Insd)................................. 5.250    09/01/33      3,203,460
    1,500   Tacoma, WA Elec Sys Rev Rfdg Ser B (FSA Insd)... 5.500    01/01/12      1,630,620
    4,750   Tacoma, WA Elec Sys Rev Rfdg Ser A (FSA Insd)... 5.750    01/01/14      5,174,840
    5,125   Washington St Pub Pwr Supply Sys Nuclear Proj No
            3 Rev Rfdg Ser C (MBIA Insd) (a)................   *      07/01/14      3,799,982
                                                                                 ------------
                                                                                   44,466,539
                                                                                 ------------
            WEST VIRGINIA  1.4%
    8,000   Harrison Cnty, WV Cmnty Solid Waste Disp Rev
            West Penn Pwr Co Proj Ser A (MBIA Insd) (AMT)... 6.875    04/15/22      8,020,960
                                                                                 ------------

            WISCONSIN  0.9%
    1,500   Southeast WI Professional Baseball Pk Dist Sales
            Tax Rev Rfdg Ser A (MBIA Insd).................. 5.500    12/15/20      1,748,865
    3,000   Wisconsin St Hlth & Ed Fac Wheaton Franciscan
            Svc Rfdg........................................ 5.750    08/15/30      3,241,620
                                                                                 ------------
                                                                                    4,990,485
                                                                                 ------------


See Notes to Financial Statements                                             25


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued



PAR
AMOUNT
(000)       DESCRIPTION                                      COUPON   MATURITY      VALUE
---------------------------------------------------------------------------------------------
                                                                     
            WYOMING  0.2%
$   1,000   University WY Univ Rev Fac Impt (FSA Insd)...... 5.500%   06/01/18   $  1,076,300
                                                                                 ------------

            PUERTO RICO  2.2%
   10,000   Puerto Rico Comwlth Hwy & Trans Auth Hwy Rev
            Rfdg Ser Y (FSA Insd) (h)....................... 6.250    07/01/21     12,560,500
                                                                                 ------------
TOTAL LONG-TERM INVESTMENTS  172.3%
  (Cost $918,079,971).........................................................    978,084,026
TOTAL SHORT-TERM INVESTMENTS  1.1%
  (Cost $6,200,000)...........................................................      6,200,000
                                                                                 ------------
TOTAL INVESTMENTS  173.4%
  (Cost $924,279,971).........................................................    984,284,026
LIABILITY FOR FLOATING RATE NOTE OBLIGATIONS RELATED TO
  SECURITIES HELD  (11.9%)
  (Cost ($67,605,000))
  (67,605)  Notes with interest rates ranging from 3.42% to 3.62% at October
            31, 2006 and contractual maturities of collateral ranging from
            2024 to 2041 (see Note 1) (j).....................................    (67,605,000)
                                                                                 ------------
TOTAL NET INVESTMENTS  161.5%
  (Cost $856,674,971).........................................................    916,679,026
LIABILITIES IN EXCESS OF OTHER ASSETS  (1.5%).................................     (8,726,302)

PREFERRED SHARES (INCLUDING ACCRUED DISTRIBUTIONS)  (60.0%)...................   (340,414,214)
                                                                                 ------------

NET ASSETS APPLICABLE TO COMMON SHARES  100.0%................................   $567,538,510
                                                                                 ============


Percentages are calculated as a percentage of net assets applicable to common
shares.

*   Zero coupon bond

(a) The Trust owns 100% of the outstanding bond issuance.

(b) This security is restricted and may be resold only in transactions exempt
    from registration which are normally those transactions with qualified
    institutional buyers. Restricted securities comprise 0.1% of net assets
    applicable to common shares.

(c) Inverse Floating Rate

(d) Escrowed to Maturity

 26                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued

(e) 144A-Private Placement security which is exempt from registration under Rule
    144A of the Securities Act of 1933, as amended. This security may only be
    resold in transactions exempt from registration which are normally those
    transactions with qualified institutional buyers.

(f) Security purchased on a when-issued or delayed delivery basis.

(g) Security is a "step-up" bond where the coupon increases or steps up at a
    predetermined date.

(h) All or a portion of this security has been physically segregated in
    connection with open futures or swap contracts.

(i) Underlying security related to Inverse Floaters entered into by the Trust.
    See Note 1.

(j) Floating rate notes. The interest rate shown reflects the rates in effect at
    October 31, 2006.

ACA--American Capital Access

AGL--Assured Guarantee Ltd.

AMBAC--AMBAC Indemnity Corp.

AMT--Alternative Minimum Tax

Connie Lee--Connie Lee Insurance Co.

FGIC--Financial Guaranty Insurance Co.

FHA--Federal Housing Administration

FNMA--Federal National Mortgage Association

FSA--Financial Security Assurance Inc.

GNMA--Government National Mortgage Association

MBIA--Municipal Bond Investors Assurance Corp.

XLCA--XL Capital Assurance Inc.

See Notes to Financial Statements                                             27


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

PORTFOLIO OF INVESTMENTS -- OCTOBER 31, 2006 continued

SWAP AGREEMENTS OUTSTANDING AS OF OCTOBER 31, 2006:

INTEREST RATE SWAPS



                                             PAY/
                                           RECEIVE                         NOTIONAL    UNREALIZED
                                           FLOATING   FIXED   EXPIRATION    AMOUNT    APPRECIATION/
COUNTERPARTY      FLOATING RATE INDEX        RATE     RATE       DATE       (000)     DEPRECIATION
                                                                    
JP Morgan
  Chase        USD-BMA
  Bank,          Municipal Swap
  N.A.           Index                     Receive    4.096%   12/15/26    $37,000     $(1,087,416)
                                                                                       ===========


FUTURES CONTRACTS OUTSTANDING AS OF OCTOBER 31, 2006:



                                                                            UNREALIZED
                                                                           APPRECIATION/
SHORT CONTRACTS:                                              CONTRACTS    DEPRECIATION
                                                                     
U.S. Treasury Notes 10-Year Futures, December 2006
  (Current Notional Value of $108,219 per contract).........     691         $(681,214)
U.S. Treasury Bonds Futures, December 2006
  (Current Notional Value of $112,656 per contract).........     135          (300,078)
                                                                 ---         ---------
                                                                 826         $(981,292)
                                                                 ===         =========


 28                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

FINANCIAL STATEMENTS

Statement of Assets and Liabilities
October 31, 2006


                                                           
ASSETS:
Total Investments (Cost $924,279,971).......................  $  984,284,026
Cash........................................................          58,095
Receivables:
  Investments Sold..........................................      23,123,196
  Interest..................................................      14,365,626
Other.......................................................          82,355
                                                              --------------
    Total Assets............................................   1,021,913,298
                                                              --------------
LIABILITIES:
Payables:
  Floating Rate Note Obligations............................      67,605,000
  Investments Purchased.....................................      43,313,603
  Variation Margin on Futures...............................         425,156
  Investment Advisory Fee...................................         421,196
  Income Distributions--Common Shares.......................          94,372
  Other Affiliates..........................................          34,097
Swap Contracts..............................................       1,087,416
Trustees' Deferred Compensation and Retirement Plans........         795,645
Accrued Expenses............................................         184,089
                                                              --------------
    Total Liabilities.......................................     113,960,574
Preferred Shares (including accrued distributions)..........     340,414,214
                                                              --------------
NET ASSETS APPLICABLE TO COMMON SHARES......................  $  567,538,510
                                                              ==============
NET ASSET VALUE PER COMMON SHARE ($567,538,510 divided by
  34,172,537 shares outstanding)............................  $        16.61
                                                              ==============
NET ASSETS CONSIST OF:
Common Shares ($.01 par value with an unlimited number of
  shares authorized, 34,172,537 shares issued and
  outstanding)..............................................  $      341,725
Paid in Surplus.............................................     508,277,556
Net Unrealized Appreciation.................................      57,935,347
Accumulated Undistributed Net Investment Income.............       1,095,344
Accumulated Net Realized Loss...............................        (111,462)
                                                              --------------
NET ASSETS APPLICABLE TO COMMON SHARES......................  $  567,538,510
                                                              ==============
PREFERRED SHARES ($.01 par value, authorized 100,000,000
  shares, 13,600 issued with liquidation preference of
  $25,000 per share)........................................  $  340,000,000
                                                              ==============
NET ASSETS INCLUDING PREFERRED SHARES.......................  $  907,538,510
                                                              ==============


See Notes to Financial Statements                                             29


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

FINANCIAL STATEMENTS continued

Statement of Operations
For the Year Ended October 31, 2006


                                                           
INVESTMENT INCOME:
Interest....................................................  $ 39,330,424
                                                              ------------
EXPENSES:
Investment Advisory Fee.....................................     4,270,606
Preferred Share Maintenance.................................       800,310
Accounting and Administrative Expenses......................       129,556
Trustees' Fees and Related Expenses.........................       127,811
Professional Fees...........................................       123,333
Custody.....................................................        80,795
Reports to Shareholders.....................................        68,075
Transfer Agent Fees.........................................        53,563
Registration Fees...........................................        15,991
Interest and Residual Trust Expenses........................       529,210
Other.......................................................       317,163
                                                              ------------
    Total Expenses..........................................     6,516,413
                                                              ------------
NET INVESTMENT INCOME.......................................  $ 32,814,011
                                                              ============
REALIZED AND UNREALIZED GAIN/LOSS:
Realized Gain/Loss:
  Investments...............................................  $    305,602
  Futures...................................................     3,224,230
  Swap Contracts............................................      (972,182)
                                                              ------------
Net Realized Gain...........................................     2,557,650
                                                              ------------
Net Unrealized Appreciation/Depreciation During the Period:
    Investments.............................................    15,212,460
    Futures.................................................    (2,987,577)
    Swap Contracts..........................................    (1,087,416)
                                                              ------------
Net Unrealized Appreciation During the Period...............    11,137,467
                                                              ------------
NET REALIZED AND UNREALIZED GAIN............................  $ 13,695,117
                                                              ============
DISTRIBUTIONS TO PREFERRED SHAREHOLDERS.....................  $(10,576,543)
                                                              ============
NET INCREASE IN NET ASSETS APPLICABLE TO COMMON SHARES FROM
  OPERATIONS................................................  $ 35,932,585
                                                              ============


 30                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

FINANCIAL STATEMENTS continued

Statements of Changes in Net Assets



                                                              FOR THE             FOR THE
                                                             YEAR ENDED          YEAR ENDED
                                                          OCTOBER 31, 2006    OCTOBER 31, 2005
                                                          ------------------------------------
                                                                        
FROM INVESTMENT ACTIVITIES:
Operations:
Net Investment Income...................................    $ 32,814,011        $ 17,237,401
Net Realized Gain.......................................       2,557,650           5,155,361
Net Unrealized Appreciation/Depreciation During the
  Period................................................      11,137,467         (10,334,831)
Distributions to Preferred Shareholders:
  Net Investment Income.................................      (9,290,320)         (3,356,327)
  Net Realized Gain.....................................      (1,286,223)                  0
                                                            ------------        ------------
Change in Net Assets Applicable to Common Shares from
  Operations............................................      35,932,585           8,701,604
Distributions to Common Shareholders:
  Net Investment Income.................................     (23,610,637)        (14,450,796)
  Net Realized Gain.....................................      (5,326,749)                  0
                                                            ------------        ------------

NET CHANGE IN NET ASSETS APPLICABLE TO COMMON SHARES
  FROM INVESTMENT ACTIVITIES............................       6,995,199          (5,749,192)

FROM CAPITAL TRANSACTIONS:
Proceeds from Common Shares Acquired Through Merger.....     306,870,227                   0
                                                            ------------        ------------

TOTAL INCREASE/DECREASE IN NET ASSETS APPLICABLE TO
  COMMON SHARES.........................................     313,865,426          (5,749,192)
NET ASSETS APPLICABLE TO COMMON SHARES:
Beginning of the Period.................................     253,673,084         259,422,276
                                                            ------------        ------------
End of the Period (Including accumulated undistributed
  net investment income of $1,095,344 and $620,228,
  respectively).........................................    $567,538,510        $253,673,084
                                                            ============        ============


See Notes to Financial Statements                                             31


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

FINANCIAL HIGHLIGHTS

THE FOLLOWING SCHEDULE PRESENTS FINANCIAL HIGHLIGHTS FOR ONE COMMON SHARE OF THE
TRUST OUTSTANDING THROUGHOUT THE PERIODS INDICATED.



                                                          YEAR ENDED OCTOBER 31,
                                             ------------------------------------------------
                                              2006       2005      2004      2003      2002
                                             ------------------------------------------------
                                                                       
NET ASSET VALUE, BEGINNING OF THE PERIOD...  $ 16.52    $ 16.89   $ 17.02   $ 17.48   $ 17.59
                                             -------    -------   -------   -------   -------
  Net Investment Income....................     1.11(a)    1.12      1.13      1.19      1.23
  Net Realized and Unrealized Gain/Loss....      .49       (.33)      .23       .09       .15
  Common Share Equivalent of Distributions
  Paid to Preferred Shareholders:
    Net Investment Income..................     (.31)      (.22)     (.10)     (.08)     (.09)
    Net Realized Gain......................     (.04)       -0-      (.02)     (.04)     (.08)
                                             -------    -------   -------   -------   -------
Total From Investment Operations...........     1.25        .57      1.24      1.16      1.21
Distributions Paid to Common Shareholders:
    Net Investment Income..................     (.81)      (.94)    (1.08)    (1.16)    (1.08)
    Net Realized Gain......................     (.35)       -0-      (.29)     (.46)     (.24)
                                             -------    -------   -------   -------   -------
NET ASSET VALUE, END OF THE PERIOD.........  $ 16.61    $ 16.52   $ 16.89   $ 17.02   $ 17.48
                                             =======    =======   =======   =======   =======

Common Share Market Price at End of the
  Period...................................  $ 14.70    $ 14.35   $ 15.20   $ 16.65   $ 16.04
Total Return (b)...........................   10.76%       .55%     (.60%)   14.53%    11.36%
Net Assets Applicable to Common Shares at
  End of the Period (In millions)..........  $ 567.5    $ 253.7   $ 259.4   $ 261.3   $ 268.3
Ratio of Expenses to Average Net Assets
  Applicable to Common Shares (c)..........    1.36%      1.18%     1.30%     1.28%     1.42%
Ratio of Net Investment Income to Average
  Net Assets Applicable to Common Shares
  (c)......................................    6.86%      6.67%     6.74%     6.90%     7.17%
Portfolio Turnover.........................      20%        32%       28%       36%       43%

SUPPLEMENTAL RATIOS:
Ratio of Expenses (Excluding Interest and
  Residual Trust Expenses) to Average Net
  Assets Applicable to Common Shares (c)...    1.25%      1.18%     1.30%     1.28%     1.42%
Ratio of Expenses (Excluding Interest and
  Residual Trust Expenses) to Average Net
  Assets Including Preferred Shares (c)....     .78%       .75%      .82%      .81%      .91%
Ratio of Expenses to Average Net Assets
  Including Preferred Shares (c)...........     .84%       .75%      .82%      .81%      .91%
Ratio of Net Investment Income to Average
  Net Assets Applicable to Common Shares
  (d)......................................    4.92%      5.37%     6.15%     6.43%     6.61%

SENIOR SECURITIES:
Total Preferred Shares Outstanding.........   13,600      6,000     6,000     6,000     6,000
Asset Coverage Per Preferred Share (e).....  $66,761    $67,307   $68,253   $68,560   $69,736
Involuntary Liquidating Preference Per
  Preferred Share..........................  $25,000    $25,000   $25,000   $25,000   $25,000
Average Market Value Per Preferred Share...  $25,000    $25,000   $25,000   $25,000   $25,000


(a) Based on average shares outstanding.

(b) Total return assumes an investment at the common share market price at the
    beginning of the period indicated, reinvestment of all distributions for the
    period in accordance with the Trust's dividend reinvestment plan, and sale
    of all shares at the closing common share market price at the end of the
    period indicated.

(c) Ratios do not reflect the effect of dividend payments to preferred
    shareholders.

(d) Ratios reflect the effect of dividend payments to preferred shareholders.

(e) Calculated by subtracting the Trust's total liabilities (not including the
    preferred shares) from the Trust's total assets and dividing this by the
    number of preferred shares outstanding.

 32                                            See Notes to Financial Statements


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

NOTES TO FINANCIAL STATEMENTS -- OCTOBER 31, 2006

1. SIGNIFICANT ACCOUNTING POLICIES

Van Kampen Municipal Opportunity Trust (the "Trust") is registered as a
diversified, closed-end management investment company under the Investment
Company Act of 1940 (the "1940 Act"), as amended. The Trust's investment
objective is to provide a high level of current income exempt from federal
income tax, consistent with preservation of capital. The Trust commenced
investment operations on April 24, 1992.

    The following is a summary of significant accounting policies consistently
followed by the Trust in the preparation of its financial statements. The
preparation of financial statements in conformity with accounting principles
generally accepted in the United States of America requires management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses
during the reporting period. Actual results could differ from those estimates.

A. SECURITY VALUATION Municipal bonds are valued by independent pricing services
or dealers using the mean of the bid and asked prices or, in the absence of
market quotations, at fair value based upon yield data relating to municipal
bonds with similar characteristics and general market conditions. Securities
which are not valued by independent pricing services or dealers are valued at
fair value using procedures established in good faith by the Board of Trustees.
Futures contracts are valued at the settlement price established each day on the
exchange on which they are traded. Interest rate swaps are valued using market
quotations from brokers. Short-term securities with remaining maturities of 60
days or less are valued at amortized cost, which approximates market value.

B. SECURITY TRANSACTIONS Security transactions are recorded on a trade date
basis. Realized gains and losses are determined on an identified cost basis. The
Trust may purchase and sell securities on a "when-issued" or "delayed delivery"
basis with settlement to occur at a later date. The value of the security so
purchased is subject to market fluctuations during this period. The Trust will
segregate assets with the custodian having an aggregate value at least equal to
the amount of the when-issued or delayed delivery purchase commitments until
payment is made. At October 31, 2006, the Trust had $43,313,603 of when-issued
or delayed delivery purchase commitments.

C. INVESTMENT INCOME Interest income is recorded on an accrual basis. Bond
premium is amortized and discount is accreted over the expected life of each
applicable security.

D. FEDERAL INCOME TAXES It is the Trust's policy to comply with the requirements
of Subchapter M of the Internal Revenue Code applicable to regulated investment
companies and to distribute substantially all of its taxable income to its
shareholders. Therefore, no provision for federal income taxes is required. The
Trust intends to utilize provisions of the federal income tax laws which allow
it to carry a realized capital loss forward for eight years following the year
of the loss and offset these losses against any future realized capital gains.

                                                                              33


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

NOTES TO FINANCIAL STATEMENTS -- OCTOBER 31, 2006 continued

At October 31, 2006, the Trust had an accumulated capital loss carryforward for
tax purposes of $1,757,902 which will expire according to the following
schedule.



AMOUNT                                                             EXPIRATION
                                                             
$577,984....................................................    October 31, 2013
1,179,918...................................................    October 31, 2014


    Part of the capital loss carryforward above was acquired due to a merger
with another regulated investment company. Please see footnote 3 for details.

    At October 31, 2006, the cost and related gross unrealized appreciation and
depreciation are as follows:


                                                             
Cost of investments for tax purposes........................    $855,086,021
                                                                ============
Gross tax unrealized appreciation...........................    $ 61,988,191
Gross tax unrealized depreciation...........................        (395,186)
                                                                ------------
Net tax unrealized appreciation on investments..............    $ 61,593,005
                                                                ============


E. DISTRIBUTION OF INCOME AND GAINS The Trust declares and pays monthly
dividends from net investment income to common shareholders. Net realized gains,
if any, are distributed annually on a pro rata basis to common and preferred
shareholders. Distributions from net realized gains for book purposes may
include short-term capital gains and a portion of futures gains, which are
included as ordinary income for tax purposes.

    The tax character of distributions paid during the years ended October 31,
2006 and 2005 was as follows:



                                                                 2006           2005
                                                                       
Distributions paid from:
  Ordinary income...........................................  $   478,073    $       371
  Tax-exempt income.........................................   32,610,353     17,741,794
  Long-term capital gain....................................    6,136,619            -0-
                                                              -----------    -----------
                                                              $39,225,045    $17,742,165
                                                              ===========    ===========


    Due to inherent differences in the recognition of income, expenses and
realized gains/losses under accounting principles generally accepted in the
United States of America and federal income tax purposes, permanent differences
between book and tax basis reporting have been identified and appropriately
reclassified on the Statement of Assets and Liabilities. Permanent book to tax
differences relating to merger costs and excise taxes which are not deductible
for tax purposes totaling $222,000 and $46,133, respectively, were reclassified
from accumulated undistributed net investment income to paid in surplus.
Additionally, a permanent difference relating to book to tax accretion
differences totaling $394 was reclassified from accumulated undistributed net
investment income to accumulated net realized loss.

 34


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

NOTES TO FINANCIAL STATEMENTS -- OCTOBER 31, 2006 continued

    As of October 31, 2006, the components of distributable earnings on a tax
basis were as follows:


                                                           
Undistributed ordinary income...............................  $      217
Undistributed tax-exempt income.............................   1,471,303
Undistributed long-term capital gain........................           0


    Net realized gains or losses may differ for financial reporting and tax
purposes primarily as a result of gains or losses recognized on securities for
tax purposes but not for book, the deferral of losses relating to wash sale
transactions and gains or losses recognized for tax purposes on open futures
transactions on October 31, 2006.

F. FLOATING RATE NOTE OBLIGATIONS RELATED TO SECURITIES HELD The Trust enters
into transactions in which it transfers to dealer trusts fixed rate bonds in
exchange for cash and residual interests in the dealer trusts' assets and cash
flows, which are in the form of inverse floating rate investments. The dealer
trusts fund the purchases of the fixed rate bonds by issuing floating rate notes
to third parties and allowing the Trust to retain residual interests in the
bonds. The Trust enters into shortfall agreements with the dealer trusts, which
commit the Trust to pay the dealer trusts, in certain circumstances, the
difference between the liquidation value of the fixed rate bonds held by the
dealer trusts and the liquidation value of the floating rate notes held by third
parties, as well as any shortfalls in interest cash flows. The residual
interests held by the Trust (inverse floating rate investments) include the
right of the Trust (1) to cause the holders of the floating rate notes to tender
their notes at par at the next interest rate reset date, and (2) to transfer the
municipal bond from the dealer trusts to the Trust, thereby collapsing the
dealer trusts. The Trust accounts for the transfer of bonds to the dealer trusts
as secured borrowings, with the securities transferred remaining in the Trust's
investment assets, and the related floating rate notes reflected as Trust
liabilities under the caption "Floating Rate Note Obligations" on the Statement
of Assets and Liabilities. The Trust records the interest income from the fixed
rate bonds under the caption "Interest" and records the expenses related to
floating rate note obligations and any administrative expenses of the dealer
trusts under the caption "Interest and Residual Trust Expenses" in the Trust's
Statement of Operations. The notes issued by the dealer trusts have interest
rates that reset weekly and the floating rate note holders have the option to
tender their notes to the dealer trusts for redemption at par at each reset
date. At October 31, 2006, Trust investments with a value of $103,424,660 are
held by the dealer trusts and serve as collateral for the $67,605,000 in
floating rate notes outstanding at that date. Contractual maturities of the
floating rate notes and interest rates in effect at October 31, 2006 are
presented on the Portfolio of Investments.

2. INVESTMENT ADVISORY AGREEMENT AND OTHER TRANSACTIONS WITH AFFILIATES

Under the terms of the Trust's Investment Advisory Agreement, Van Kampen Asset
Management (the "Adviser") will provide investment advice and facilities to the
Trust for an annual fee payable monthly of .55% of the average daily net assets
including preferred shares of the Trust. Effective December 1, 2006, the Adviser
has agreed to waive investment advisory fees equal to .10% of the average daily
net assets including preferred shares of the Trust. This waiver is voluntary and
can be discontinued at any time.

                                                                              35


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

NOTES TO FINANCIAL STATEMENTS -- OCTOBER 31, 2006 continued

    For the year ended October 31, 2006, the Trust recognized expenses of
approximately $43,700 representing legal services provided by Skadden, Arps,
Slate, Meagher & Flom LLP, of which a trustee of the Trust is a partner of such
firm and he and his law firm provide legal services as legal counsel to the
Trust.

    Under separate Legal Services, Accounting Services and Chief Compliance
Officer (CCO) Employment agreements, the Adviser provides accounting and legal
services and the CCO provides compliance services to the Trust. The costs of
these services are allocated to each trust. For the year ended October 31, 2006,
the Trust recognized expenses of approximately $88,700 representing Van Kampen
Investments Inc.'s or its affiliates' (collectively "Van Kampen") cost of
providing accounting and legal services to the Trust, as well as, the salary,
benefits and related costs of the CCO and related support staff paid by Van
Kampen. Services provided pursuant to the Legal Services agreement are reported
as part of "Professional Fees" on the Statement of Operations. Services provided
pursuant to the Accounting Services and CCO Employment agreement are reported as
part of "Accounting and Administrative Expenses" on the Statement of Operations.

    Certain officers and trustees of the Trust are also officers and directors
of Van Kampen. The Trust does not compensate its officers or trustees who are
also officers of Van Kampen.

    The Trust provides deferred compensation and retirement plans for its
trustees who are not officers of Van Kampen. Under the deferred compensation
plan, trustees may elect to defer all or a portion of their compensation to a
later date. Benefits under the retirement plan are payable upon retirement for a
ten-year period and are based upon each trustee's years of service to the Trust.
The maximum annual benefit per trustee under the plan is $2,500.

3. CAPITAL TRANSACTIONS

For the years ended October 31, 2006 and 2005, transactions in common shares
were as follows:



                                                             YEAR ENDED          YEAR ENDED
                                                          OCTOBER 31, 2006    OCTOBER 31, 2005
                                                                        
Beginning Shares........................................     15,357,684          15,357,684
Shares Issued Through Merger............................     18,814,853                   0
                                                             ----------          ----------
Ending Shares...........................................     34,172,537          15,357,684
                                                             ==========          ==========


    On January 27, 2006, the Trust acquired all of the assets and liabilities of
the Van Kampen Advantage Municipal Income Trust (ticker symbol VKA) through a
tax free reorganization approved by VKA's shareholders on January 11, 2006. The
Trust issued 18,814,853 common shares with a net asset value of $306,870,227 and
7,600 Auction Preferred Shares (APS) with a liquidation value of $190,000,000 in
exchange for VKA's net assets. The shares of VKA were converted into Trust
shares at a ratio of 0.984721 to 1 and 1 to 1, for common shares and APS,
respectively. Net unrealized appreciation of VKA as of January 27, 2006 was
$26,207,937. The Trust assumed VKA's book to tax accretion difference, which
resulted in a $652,090 increase to accumulated undistributed net investment
income and a corresponding decrease to net unrealized appreciation. Combined net
assets applicable to common shares on the day of the reorganization were
$557,410,249 and combined net assets including preferred shares were
$897,410,249. Included in these net assets was a capital

 36


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

NOTES TO FINANCIAL STATEMENTS -- OCTOBER 31, 2006 continued

loss carryforward of $577,984, gains or losses of $287,664 recognized for tax
purposes on open futures transactions at January 27, 2006, and deferred losses
relating to wash sales transactions of $84,376 which are included with
accumulated net realized loss of which all can be utilized by the acquiring
Trust. Additionally, included in these net assets was a deferred compensation
and retirement plan balance of $357,767 which is included with accumulated
undistributed net investment income.

4. INVESTMENT TRANSACTIONS

During the period, the cost of purchases and proceeds from sales of investments,
excluding short-term investments, were $229,449,871 and $155,379,991,
respectively.

5. DERIVATIVE FINANCIAL INSTRUMENTS

A derivative financial instrument in very general terms refers to a security
whose value is "derived" from the value of an underlying asset, reference rate
or index.

    In order to seek to manage the interest rate exposure of the Trust's
portfolio in a changing interest rate environment, the Trust may purchase or
sell financial futures contracts or engage in transactions involving interest
rate swaps, caps, floors or collars. The Trust expects to enter into these
transactions primarily as a hedge against anticipated interest rate or fixed
income market changes, for duration management or for risk management purposes,
but may also enter into these transactions to generate additional income. All of
the Trust's portfolio holdings, including derivative instruments, are marked to
market each day with the change in value reflected in the unrealized
appreciation/depreciation. Upon disposition, a realized gain or loss is
recognized accordingly, except when taking delivery of a security underlying a
futures contract. In this instance, the recognition of gain or loss is postponed
until the disposal of the security underlying the futures contract.

    Summarized below are the specific types of derivative financial instruments
used by the Trust.

A. FUTURES CONTRACTS A futures contract is an agreement involving the delivery
of a particular asset on a specified future date at an agreed upon price. The
Trust generally invests in exchange traded futures contracts on U.S. Treasury
securities and typically closes the contract prior to the delivery date. These
contracts are generally used to manage the Trust's effective maturity and
duration. Upon entering into futures contracts, the Trust maintains an amount of
cash or liquid securities with a value equal to a percentage of the contract
amount with either a futures commission merchant pursuant to the rules and
regulations promulgated under the 1940 Act, as amended, or with its custodian in
an account in the broker's name. This amount is known as initial margin. During
the period the futures contract is open, payments are received from or made to
the broker based upon changes in the value of the contract (the variation
margin). The risk of loss associated with a futures contract is in excess of the
variation margin reflected on the Statement of Assets and Liabilities.

                                                                              37


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

NOTES TO FINANCIAL STATEMENTS -- OCTOBER 31, 2006 continued

    Transactions in futures contracts for the year ended October 31, 2006 were
as follows:



                                                                CONTRACTS
                                                             
Outstanding at October 31, 2005.............................      1,227
Futures Opened..............................................      7,303
Futures Closed..............................................     (7,704)
                                                                 ------
Outstanding at October 31, 2006.............................        826
                                                                 ======


B. INVERSE FLOATING RATE INVESTMENTS The Trust may invest a portion of its
assets in inverse floating rate instruments, either through outright purchases
of inverse floating rate securities or through the transfer of bonds to a dealer
trust in exchange for cash and residual interests in the dealer trust. These
investments are typically used by the Trust in seeking to enhance the yield of
the portfolio. These instruments typically involve greater risks than a fixed
rate municipal bond. In particular, these instruments are acquired through
leverage or may have leverage embedded in them and therefore involve many of the
risks associated with leverage. Leverage is a speculative technique that may
expose the Trust to greater risk and increased costs. Leverage may cause the
Trust's net asset value to be more volatile than if it had not been leveraged
because leverage tends to magnify the effect of any increases or decreases in
the value of the Trust's portfolio securities. The use of leverage may also
cause the Trust to liquidate portfolio positions when it may not be advantageous
to do so in order to satisfy its obligations with respect to inverse floating
rate instruments.

C. INTEREST RATE SWAPS The Trust may enter into forward interest rate swap
transactions intended to help the Trust manage its overall interest rate
sensitivity, either shorter or longer, generally to more closely align the
Trust's interest rate sensitivity with that of the broader municipal market.
Forward interest rate swap transactions involve the Trust's agreement with a
counterparty to pay, in the future, a fixed or variable rate payment in exchange
for the counterparty paying the Trust a variable or fixed rate payment, the
accruals for which would begin at a specified date in the future (the "effective
date"). The amount of the payment obligation is based on the notional amount of
the forward swap contract and the termination date of the swap (which is akin to
a bond's maturity). The value of the Trust's swap commitment would increase or
decrease based primarily on the extent to which long-term interest rates for
bonds having a maturity of the swap's termination date increases or decreases.
The Trust may terminate a swap contract prior to the effective date, at which
point a realized gain or loss is recognized. When a forward swap is terminated,
it ordinarily does not involve the delivery of securities or other underlying
assets or principal, but rather is settled in cash on a net basis. The Trust
intends, but is not obligated, to terminate its forward swaps before the
effective date. Accordingly, the risk of loss with respect to the swap
counterparty on such transactions is limited to the credit risk associated with
a counterparty failing to honor its commitment to pay any realized gain to the
Trust upon termination. To reduce such credit risk, all counterparties are
required to pledge collateral daily (based on the daily valuation of each swap)
on behalf of the Trust with a value approximately equal to the amount of any
unrealized gain. Reciprocally, when the Trust has an unrealized loss on a swap
contract, the Trust has instructed the custodian to pledge cash or liquid
securities as collateral with a value approximately equal to the amount of the
unrealized loss. Collateral pledges are

 38


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

NOTES TO FINANCIAL STATEMENTS -- OCTOBER 31, 2006 continued

monitored and subsequently adjusted if and when the swap valuations fluctuate.
Restricted cash, if any, for segregating purposes is shown on the Statement of
Assets and Liabilities.

6. PREFERRED SHARES

The Trust has outstanding 13,600 APS. Series A and B contain 3,000 shares,
Series C, D and E contain 2,000 shares, and Series F contains 1,600 shares.
Dividends are cumulative and the dividend rate on each series is currently reset
every 28 days through an auction process. The average rate in effect on October
31, 2006 was 3.535%. During the year ended October 31, 2006, the rates ranged
from 2.650% to 5.125%.

    The Trust pays annual fees equivalent to .25% of the preferred share
liquidation value for the remarketing efforts associated with the preferred
auctions. These fees are included as a component of "Preferred Share
Maintenance" expense on the Statement of Operations.

    The APS are redeemable at the option of the Trust in whole or in part at the
liquidation value of $25,000 per share plus accumulated and unpaid dividends.
The Trust is subject to certain asset coverage tests and the APS are subject to
mandatory redemption if the tests are not met.

7. INDEMNIFICATIONS

The Trust enters into contracts that contain a variety of indemnifications. The
Trust's maximum exposure under these arrangements is unknown. However, the Trust
has not had prior claims or losses pursuant to these contracts and expects the
risk of loss to be remote.

8. ACCOUNTING PRONOUNCEMENTS

In July 2006, the Financial Accounting Standards Board (FASB) issued
Interpretation 48, Accounting for Uncertainty in Income Taxes -- an
interpretation of FASB Statement 109 (FIN 48). FIN 48 clarifies the accounting
for income taxes by prescribing the minimum recognition threshold a tax position
must meet before being recognized in the financial statements. FIN 48 is
effective for the fiscal years beginning after December 15, 2006. The impact to
the Trust's financial statements, if any, is currently being assessed.

    In addition, in September 2006, Statement of Financial Accounting Standards
No. 157, Fair Value Measurements (SFAS 157), was issued and is effective for
fiscal years beginning after November 15, 2007. SFAS 157 defines fair value,
establishes a framework for measuring fair value and expands disclosures about
fair value measurements. Management is currently evaluating the impact the
adoption of SFAS 157 will have on the Trust's financial statement disclosures.

                                                                              39


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Trustees and Shareholders of
Van Kampen Municipal Opportunity Trust

We have audited the accompanying statement of assets and liabilities of Van
Kampen Municipal Opportunity Trust (the "Trust"), including the portfolio of
investments, as of October 31, 2006, the related statement of operations for the
year then ended, the statements of changes in net assets for each of the two
years in the period then ended, and the financial highlights for each of the
five years in the period then ended. These financial statements and financial
highlights are the responsibility of the Trust's management. Our responsibility
is to express an opinion on these financial statements and financial highlights
based on our audits.

    We conducted our audits in accordance with the standards of the Public
Company Accounting Oversight Board (United States). Those standards require that
we plan and perform the audit to obtain reasonable assurance about whether the
financial statements and financial highlights are free of material misstatement.
The Trust is not required to have, nor were we engaged to perform, an audit of
its internal control over financial reporting. Our audits included consideration
of internal control over financial reporting as a basis for designing audit
procedures that are appropriate in the circumstances, but not for the purpose of
expressing an opinion on the effectiveness of the Trust's internal control over
financial reporting. Accordingly, we express no such opinion. An audit also
includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements, assessing the accounting principles
used and significant estimates made by management, as well as evaluating the
overall financial statement presentation. Our procedures included confirmation
of securities owned as of October 31, 2006, by correspondence with the custodian
and brokers; where replies were not received from brokers, we performed other
auditing procedures. We believe that our audits provide a reasonable basis for
our opinion.

    In our opinion, the financial statements and financial highlights referred
to above present fairly, in all material respects, the financial position of Van
Kampen Municipal Opportunity Trust as of October 31, 2006, the results of its
operations for the year then ended, the changes in its net assets for each of
the two years in the period then ended, and the financial highlights for each of
the five years in the period then ended, in conformity with accounting
principles generally accepted in the United States of America.

DELOITTE & TOUCHE LLP
Chicago, Illinois
January 11, 2007

 40


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

DIVIDEND REINVESTMENT PLAN

    The dividend reinvestment plan offers you a prompt and simple way to
reinvest your dividends and capital gains distributions into additional shares
of your trust. Under the plan, the money you earn from dividends and capital
gains distributions will be reinvested automatically in more shares of your
trust, allowing you to potentially increase your investment over time.

PLAN BENEFITS

    - ADD TO YOUR ACCOUNT

      You may increase your shares in your trust easily and automatically with
      the dividend reinvestment plan.

    - LOW TRANSACTION COSTS

      Shareholders who participate in the plan are able to buy shares at below-
      market prices when the trust is trading at a premium to its net asset
      value. In addition, transaction costs are low because when new shares are
      issued by the trust, there is no brokerage fee, and when shares are bought
      in blocks on the open market, the brokerage commission is shared among all
      participants.

    - CONVENIENCE

      You will receive a detailed account statement from Computershare Trust
      Company, N.A., which administers the plan, whenever shares are reinvested
      for you. The statement shows your total distributions, date of investment,
      shares acquired, and price per share, as well as the total number of
      shares in your reinvestment account.

    - SAFEKEEPING

      Computershare Trust Company, N.A. will hold the shares it has acquired for
      you in safekeeping, which provides added protection against loss, theft,
      or inadvertent destruction of certificates. However, you may request that
      a certificate representing your reinvested shares be issued to you.

HOW DOES THE PLAN WORK?

    If you choose to participate in the plan, your dividends and capital gains
distributions will be promptly reinvested for you, automatically increasing your
shares. If your trust is trading at a share price that is equal to its net asset
value (NAV), you'll pay that amount for your reinvested shares. However, if your
trust is trading above or below its NAV, the price is determined by one of two
ways:

       1. PREMIUM If your trust is trading at a premium -- a market price that
       is higher than its NAV -- you'll pay either the NAV or 95 percent of the
       market price, whichever is greater. When your trust trades at a premium,
       you'll pay less for your reinvested shares than an ordinary investor
       purchasing shares on the stock exchange. Keep in mind, a portion of your
       price reduction may be taxable because you are receiving shares at less
       than market price.

                                                                              41

VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

DIVIDEND REINVESTMENT PLAN continued

       2. DISCOUNT If your trust is trading at a discount -- a market price that
       is lower than its NAV -- you'll pay the market price for your reinvested
       shares.

HOW TO PARTICIPATE IN THE PLAN

    If you own shares in your own name, you can participate directly in the
plan. If your shares are held in "street name" -- in the name of your brokerage
firm, bank, or other financial institution -- you must instruct that entity to
participate on your behalf. If they are unable to participate on your behalf,
you may request that they reregister your shares in your own name so that you
may enroll in the plan.

    If you choose to participate in the plan, whenever your trust declares a
dividend or capital gains distribution, it will be invested in additional shares
of your trust that are purchased on the open market.

HOW TO ENROLL

    To enroll in the Dividend Reinvestment Plan please visit vankampen.com or
call (800) 341-2929 or notify us in writing at the address below.

                          Van Kampen Closed-End Funds
                       Computershare Trust Company, N.A.
                                 P.O. Box 43011
                           Providence, RI 02940-3011

Please include your trust name and account number and ensure that all
shareholders listed on the account sign these written instructions. Your
participation in the plan will begin with the next dividend or capital gains
distribution payable after Computershare Trust Company, N.A. receives your
authorization, as long as they receive it before the "record date," which is
generally ten business days before the dividend is paid. If your authorization
arrives after such record date, your participation in the plan will begin with
the following dividend or distribution.

COSTS OF THE PLAN

    There is no direct charge to you for reinvesting dividends and capital gains
distributions because the plan's fees are paid by your trust. If your trust is
trading at or above its NAV, your new shares are issued directly by the trust
and there are no brokerage charges or commissions. However, if your trust is
trading at a discount, the shares are purchased on the open market, and you will
pay your portion of any brokerage commissions. These brokerage commissions are
typically less than the standard brokerage charges for individual transactions
because shares are purchased for all participants in

 42

VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

DIVIDEND REINVESTMENT PLAN continued

blocks, resulting in lower commissions for each individual participant. Any
brokerage commissions or service fees are averaged into the purchase price.

TAX IMPLICATIONS

    The automatic reinvestment of dividends and capital gains distributions does
not relieve you of any income tax that may be due on dividends or distributions.
You will receive tax information annually to help you prepare your federal and
state income tax returns.

HOW TO WITHDRAW FROM THE PLAN

    To withdraw from the Dividend Reinvestment Plan please visit vankampen.com
or call (800) 341-2929 or notify us in writing at the address below.

                          Van Kampen Closed-End Funds
                       Computershare Trust Company, N.A.
                                 P.O. Box 43011
                           Providence, RI 02940-3011

All shareholders listed on the account must sign any written withdrawal
instructions. If you withdraw, you have two choices for receiving your shares:

    - CERTIFICATE

    We will issue a certificate for the full shares and send you a check for any
fractional shares without a charge.

    - CHECK

    We will sell all full and fractional shares and send the proceeds to your
address of record after deducting brokerage commissions and a $2.50 service fee.

    The Trust and Computershare Trust Company, N.A. may amend or terminate the
plan. Participants will receive written notice at least 30 days before the
effective date of any amendment. In the case of termination, participants will
receive written notice at least 30 days before the record date for the payment
of any dividend or capital gains distribution by your trust.

    TO OBTAIN A COMPLETE COPY OF THE DIVIDEND REINVESTMENT PLAN, PLEASE CALL OUR
CLIENT RELATIONS DEPARTMENT AT 800-341-2929 OR VISIT VANKAMPEN.COM.

                                                                              43


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

BOARD OF TRUSTEES, OFFICERS AND IMPORTANT ADDRESSES

BOARD OF TRUSTEES

DAVID C. ARCH
JERRY D. CHOATE
ROD DAMMEYER
LINDA HUTTON HEAGY
R. CRAIG KENNEDY
HOWARD J KERR
JACK E. NELSON
HUGO F. SONNENSCHEIN
WAYNE W. WHALEN* - Chairman
SUZANNE H. WOOLSEY

OFFICERS

RONALD E. ROBISON
President and Principal Executive Officer

DENNIS SHEA
Vice President

J. DAVID GERMANY
Vice President

AMY R. DOBERMAN
Vice President

STEFANIE V. CHANG
Vice President and Secretary

JOHN L. SULLIVAN
Chief Compliance Officer

JAMES W. GARRETT
Chief Financial Officer and Treasurer

INVESTMENT ADVISER

VAN KAMPEN ASSET MANAGEMENT
1221 Avenue of the Americas
New York, New York 10020

CUSTODIAN

STATE STREET BANK
AND TRUST COMPANY
One Lincoln Street
Boston, Massachusetts 02111


TRANSFER AGENT

COMPUTERSHARE TRUST COMPANY, N.A.
c/o Computershare Investor Services
P.O. Box 43011
Providence, Rhode Island 02940-3011


LEGAL COUNSEL

SKADDEN, ARPS, SLATE,
MEAGHER & FLOM LLP
333 West Wacker Drive
Chicago, Illinois 60606

INDEPENDENT REGISTERED PUBLIC
ACCOUNTING FIRM

DELOITTE & TOUCHE LLP
111 South Wacker Drive
Chicago, Illinois 60606-4301

 For federal income tax purposes, the following information is furnished with
 respect to the distributions paid by the Trust during its taxable year ended
 October 31, 2006. The Trust designated 99.99% of the income distributions as a
 tax-exempt income distribution. The Trust designated and paid $6,136,619 as a
 long-term capital gain distribution. In January, the Trust provides tax
 information to shareholders for the preceding calendar year.

*   "Interested persons" of the Trust, as defined in the Investment Company Act
    of 1940, as amended.

 44


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

RESULTS OF SHAREHOLDER VOTES

With regard to the approval of the issuance of additional Common shares of the
Trust, a meeting was held on January 11, 2006, and the results of the votes from
the Common shareholders are as follows:



                                                                      # OF SHARES
                                                            --------------------------------
                                                            IN FAVOR     AGAINST    WITHHELD
--------------------------------------------------------------------------------------------
                                                                           
Common....................................................  7,071,640    494,051    286,823


The Annual Meeting of the Shareholders of the Trust was held on June 23, 2006,
where shareholders voted on the election of trustees.

With regard to the election of the following trustees by common shareholders of
the Trust:



                                                                   # OF SHARES
                                                              ----------------------
                                                               IN FAVOR     WITHHELD
------------------------------------------------------------------------------------
                                                                      
Linda Hutton Heagy..........................................  30,207,765    598,759
Wayne W. Whalen.............................................  30,205,554    600,970


With regard to the election of the following trustee by preferred shareholders
of the Trust:



                                                                  # OF SHARES
                                                              --------------------
                                                              IN FAVOR    WITHHELD
----------------------------------------------------------------------------------
                                                                    
Rod Dammeyer................................................   9,597         32


The other trustees of the Trust whose terms did not expire in 2006 are David C.
Arch, Jerry D. Choate, R. Craig Kennedy, Howard J Kerr, Jack E. Nelson, Hugo F.
Sonnenschein, and Suzanne H. Woolsey.

                                                                              45


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

TRUSTEE AND OFFICER INFORMATION

The business and affairs of the Trust are managed under the direction of the
Trust's Board of Trustees and the Trust's officers appointed by the Board of
Trustees. The tables below list the trustees and executive officers of the Trust
and their principal occupations during the last five years, other directorships
held by trustees and their affiliations, if any, with Van Kampen Investments,
the Adviser, the Distributor, Van Kampen Advisors Inc., Van Kampen Exchange
Corp. and Investor Services. The term "Fund Complex" includes each of the
investment companies advised by the Adviser as of the date of this Annual
Report. Trustees of the Trust generally serve three year terms or until their
successors are duly elected and qualified. Officers are annually elected by the
trustees.

INDEPENDENT TRUSTEES:



                                                                                    NUMBER OF
                                              TERM OF                                FUNDS IN
                                             OFFICE AND                                FUND
                                POSITION(S)  LENGTH OF                               COMPLEX
NAME, AGE AND ADDRESS            HELD WITH      TIME     PRINCIPAL OCCUPATION(S)     OVERSEEN    OTHER DIRECTORSHIPS
OF INDEPENDENT TRUSTEE             TRUST       SERVED    DURING PAST 5 YEARS        BY TRUSTEE   HELD BY TRUSTEE
                                                                                  
David C. Arch (61)              Trustee      Trustee     Chairman and Chief             71       Trustee/Director/Managing
Blistex Inc.                                 since 1992  Executive Officer of                    General Partner of funds
1800 Swift Drive                                         Blistex Inc., a consumer                in the Fund Complex.
Oak Brook, IL 60523                                      health care products
                                                         manufacturer. Director of
                                                         the Heartland Alliance, a
                                                         nonprofit organization
                                                         serving human needs based
                                                         in Chicago. Director of
                                                         St. Vincent de Paul
                                                         Center, a Chicago based
                                                         day care facility serving
                                                         the children of low
                                                         income families. Board
                                                         member of the Illinois
                                                         Manufacturers'
                                                         Association.

Jerry D. Choate (68)            Trustee      Trustee     Prior to January 1999,         71       Trustee/Director/Managing
33971 Selva Road                             since 2003  Chairman and Chief                      General Partner of funds
Suite 130                                                Executive Officer of the                in the Fund Complex.
Dana Point, CA 92629                                     Allstate Corporation                    Director of Amgen Inc., a
                                                         ("Allstate") and Allstate               biotechnological company,
                                                         Insurance Company. Prior                and Director of Valero
                                                         to January 1995,                        Energy Corporation, an
                                                         President and Chief                     independent refining
                                                         Executive Officer of                    company.
                                                         Allstate. Prior to August
                                                         1994, various management
                                                         positions at Allstate.


 46




VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST
TRUSTEE AND OFFICER INFORMATION continued
                                                                                    NUMBER OF
                                              TERM OF                                FUNDS IN
                                             OFFICE AND                                FUND
                                POSITION(S)  LENGTH OF                               COMPLEX
NAME, AGE AND ADDRESS            HELD WITH      TIME     PRINCIPAL OCCUPATION(S)     OVERSEEN    OTHER DIRECTORSHIPS
OF INDEPENDENT TRUSTEE             TRUST       SERVED    DURING PAST 5 YEARS        BY TRUSTEE   HELD BY TRUSTEE
                                                                                  

Rod Dammeyer (66)               Trustee      Trustee     President of CAC, L.L.C.,      71       Trustee/Director/Managing
CAC, L.L.C.                                  since 1992  a private company                       General Partner of funds
4350 LaJolla Village Drive                               offering capital                        in the Fund Complex.
Suite 980                                                investment and management               Director of Quidel
San Diego, CA 92122-6223                                 advisory services. Prior                Corporation, Stericycle,
                                                         to February 2001, Vice                  Inc., Ventana Medical
                                                         Chairman and Director of                Systems, Inc., and GATX
                                                         Anixter International,                  Corporation, and Trustee
                                                         Inc., a global                          of The Scripps Research
                                                         distributor of wire,                    Institute. Prior to
                                                         cable and communications                January 2005, Trustee of
                                                         connectivity products.                  the University of Chicago
                                                         Prior to July 2000,                     Hospitals and Health
                                                         Managing Partner of                     Systems. Prior to April
                                                         Equity Group Corporate                  2004, Director of
                                                         Investment (EGI), a                     TheraSense, Inc. Prior to
                                                         company that makes                      January 2004, Director of
                                                         private investments in                  TeleTech Holdings Inc.
                                                         other companies.                        and Arris Group, Inc.
                                                                                                 Prior to May 2002,
                                                                                                 Director of Peregrine
                                                                                                 Systems Inc. Prior to
                                                                                                 February 2001, Director
                                                                                                 of IMC Global Inc. Prior
                                                                                                 to July 2000, Director of
                                                                                                 Allied Riser
                                                                                                 Communications Corp.,
                                                                                                 Matria Healthcare Inc.,
                                                                                                 Transmedia Networks,
                                                                                                 Inc., CNA Surety, Corp.
                                                                                                 and Grupo Azcarero Mexico
                                                                                                 (GAM).


                                                                              47




VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST
TRUSTEE AND OFFICER INFORMATION continued
                                                                                    NUMBER OF
                                              TERM OF                                FUNDS IN
                                             OFFICE AND                                FUND
                                POSITION(S)  LENGTH OF                               COMPLEX
NAME, AGE AND ADDRESS            HELD WITH      TIME     PRINCIPAL OCCUPATION(S)     OVERSEEN    OTHER DIRECTORSHIPS
OF INDEPENDENT TRUSTEE             TRUST       SERVED    DURING PAST 5 YEARS        BY TRUSTEE   HELD BY TRUSTEE
                                                                                  

Linda Hutton Heagy (58)         Trustee      Trustee     Managing Partner of            71       Trustee/Director/Managing
Heidrick & Struggles                         since 2003  Heidrick & Struggles, an                General Partner of funds
233 South Wacker Drive                                   executive search firm.                  in the Fund Complex.
Suite 7000                                               Trustee on the University
Chicago, IL 60606                                        of Chicago Hospitals
                                                         Board, Vice Chair of the
                                                         Board of the YMCA of
                                                         Metropolitan Chicago and
                                                         a member of the Women's
                                                         Board of the University
                                                         of Chicago. Prior to
                                                         1997, Partner of Ray &
                                                         Berndtson, Inc., an
                                                         executive recruiting
                                                         firm. Prior to 1996,
                                                         Trustee of The
                                                         International House
                                                         Board, a fellowship and
                                                         housing organization for
                                                         international graduate
                                                         students. Prior to 1995,
                                                         Executive Vice President
                                                         of ABN AMRO, N.A., a bank
                                                         holding company. Prior to
                                                         1990, Executive Vice
                                                         President of The Exchange
                                                         National Bank.

R. Craig Kennedy (54)           Trustee      Trustee     Director and President of      71       Trustee/Director/Managing
1744 R Street, NW                            since 2003  the German Marshall Fund                General Partner of funds
Washington, DC 20009                                     of the United States, an                in the Fund Complex.
                                                         independent U.S.
                                                         foundation created to
                                                         deepen understanding,
                                                         promote collaboration and
                                                         stimulate exchanges of
                                                         practical experience
                                                         between Americans and
                                                         Europeans. Formerly,
                                                         advisor to the Dennis
                                                         Trading Group Inc., a
                                                         managed futures and
                                                         option company that
                                                         invests money for
                                                         individuals and
                                                         institutions. Prior to
                                                         1992, President and Chief
                                                         Executive Officer,
                                                         Director and member of
                                                         the Investment Committee
                                                         of the Joyce Foundation,
                                                         a private foundation.

Howard J Kerr (71)              Trustee      Trustee     Prior to 1998, President       71       Trustee/Director/Managing
14 Huron Trace                               since 1992  and Chief Executive                     General Partner of funds
Galena, IL 61036                                         Officer of Pocklington                  in the Fund Complex.
                                                         Corporation, Inc., an                   Director of the Lake
                                                         investment holding                      Forest Bank & Trust.
                                                         company. Director of the
                                                         Marrow Foundation.


 48




VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST
TRUSTEE AND OFFICER INFORMATION continued
                                                                                    NUMBER OF
                                              TERM OF                                FUNDS IN
                                             OFFICE AND                                FUND
                                POSITION(S)  LENGTH OF                               COMPLEX
NAME, AGE AND ADDRESS            HELD WITH      TIME     PRINCIPAL OCCUPATION(S)     OVERSEEN    OTHER DIRECTORSHIPS
OF INDEPENDENT TRUSTEE             TRUST       SERVED    DURING PAST 5 YEARS        BY TRUSTEE   HELD BY TRUSTEE
                                                                                  

Jack E. Nelson (70)             Trustee      Trustee     President of Nelson            71       Trustee/Director/Managing
423 Country Club Drive                       since 2003  Investment Planning                     General Partner of funds
Winter Park, FL 32789                                    Services, Inc., a                       in the Fund Complex.
                                                         financial planning
                                                         company and registered
                                                         investment adviser in the
                                                         State of Florida.
                                                         President of Nelson Ivest
                                                         Brokerage Services Inc.,
                                                         a member of the NASD,
                                                         Securities Investors
                                                         Protection Corp. and the
                                                         Municipal Securities
                                                         Rulemaking Board.
                                                         President of Nelson Sales
                                                         and Services Corporation,
                                                         a marketing and services
                                                         company to support
                                                         affiliated companies.

Hugo F. Sonnenschein (66)       Trustee      Trustee     President Emeritus and         71       Trustee/Director/Managing
1126 E. 59th Street                          since 1994  Honorary Trustee of the                 General Partner of funds
Chicago, IL 60637                                        University of Chicago and               in the Fund Complex.
                                                         the Adam Smith                          Director of Winston
                                                         Distinguished Service                   Laboratories, Inc.
                                                         Professor in the
                                                         Department of Economics
                                                         at the University of
                                                         Chicago. Prior to July
                                                         2000, President of the
                                                         University of Chicago.
                                                         Trustee of the University
                                                         of Rochester and a member
                                                         of its investment
                                                         committee. Member of the
                                                         National Academy of
                                                         Sciences, the American
                                                         Philosophical Society and
                                                         a fellow of the American
                                                         Academy of Arts and
                                                         Sciences.

Suzanne H. Woolsey, Ph.D. (65)  Trustee      Trustee     Chief Communications           71       Trustee/Director/Managing
815 Cumberstone Road                         since 2003  Officer of the National                 General Partner of funds
Harwood, MD 20776                                        Academy of                              in the Fund Complex.
                                                         Sciences/National                       Director of Fluor Corp.,
                                                         Research Council, an                    an engineering,
                                                         independent, federally                  procurement and
                                                         chartered policy                        construction
                                                         institution, from 2001 to               organization, since
                                                         November 2003 and Chief                 January 2004 and Director
                                                         Operating Officer from                  of Neurogen Corporation,
                                                         1993 to 2001. Director of               a pharmaceutical company,
                                                         the Institute for Defense               since January 1998.
                                                         Analyses, a federally
                                                         funded research and
                                                         development center,
                                                         Director of the German
                                                         Marshall Fund of the
                                                         United States, Director
                                                         of the Rocky Mountain
                                                         Institute and Trustee of
                                                         Colorado College. Prior
                                                         to 1993, Executive
                                                         Director of the
                                                         Commission on Behavioral
                                                         and Social Sciences and
                                                         Education at the National
                                                         Academy of
                                                         Sciences/National
                                                         Research Council. From
                                                         1980 through 1989,
                                                         Partner of Coopers &
                                                         Lybrand.


                                                                              49


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

TRUSTEE AND OFFICER INFORMATION continued

INTERESTED TRUSTEE:*



                                                                                  NUMBER OF
                                            TERM OF                                FUNDS IN
                                           OFFICE AND                                FUND
                              POSITION(S)  LENGTH OF                               COMPLEX
NAME, AGE AND ADDRESS          HELD WITH      TIME     PRINCIPAL OCCUPATION(S)     OVERSEEN    OTHER DIRECTORSHIPS
OF INDEPENDENT TRUSTEE           TRUST       SERVED    DURING PAST 5 YEARS        BY TRUSTEE   HELD BY TRUSTEE
                                                                                

Wayne W. Whalen* (67)         Trustee      Trustee     Partner in the law firm        71       Trustee/Director/Managing
333 West Wacker Drive                      since 1992  of Skadden, Arps, Slate,                General Partner of funds
Chicago, IL 60606                                      Meagher & Flom LLP, legal               in the Fund Complex.
                                                       counsel to funds in the                 Director of the Abraham
                                                       Fund Complex.                           Lincoln Presidential
                                                                                               Library Foundation.


*   Mr. Whalen is an "interested person" (within the meaning of Section 2(a)(19)
    of the 1940 Act) of certain funds in the Fund Complex by reason of he and
    his firm currently providing legal services as legal counsel to such funds
    in the Fund Complex.

 50


VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST

TRUSTEE AND OFFICER INFORMATION continued

OFFICERS:



                                                        TERM OF
                                                       OFFICE AND
                                    POSITION(S)        LENGTH OF
NAME, AGE AND                        HELD WITH            TIME     PRINCIPAL OCCUPATION(S)
ADDRESS OF OFFICER                     TRUST             SERVED    DURING PAST 5 YEARS
                                                          
Ronald E. Robison (67)        President and            Officer     President of funds in the Fund Complex since September 2005
1221 Avenue of the Americas   Principal Executive      since 2003  and Principal Executive Officer of funds in the Fund Complex
New York, NY 10020            Officer                              since May 2003. Managing Director of Van Kampen Advisors
                                                                   Inc. since June 2003. Director of Investor Services since
                                                                   September 2002. Director of the Adviser, Van Kampen
                                                                   Investments and Van Kampen Exchange Corp. since January
                                                                   2005. Managing Director of Morgan Stanley and Morgan Stanley
                                                                   & Co. Incorporated. Managing Director and Director of Morgan
                                                                   Stanley Investment Management Inc. Chief Administrative
                                                                   Officer, Managing Director and Director of Morgan Stanley
                                                                   Investment Advisors Inc. and Morgan Stanley Services Company
                                                                   Inc. Managing Director and Director of Morgan Stanley
                                                                   Distributors Inc. and Morgan Stanley Distribution Inc. Chief
                                                                   Executive Officer and Director of Morgan Stanley Trust.
                                                                   Executive Vice President and Principal Executive Officer of
                                                                   the Institutional and Retail Morgan Stanley Funds. Director
                                                                   of Morgan Stanley SICAV. Previously, Chief Global Operations
                                                                   Officer of Morgan Stanley Investment Management Inc. and
                                                                   Executive Vice President of funds in the Fund Complex from
                                                                   May 2003 to September 2005.

Dennis Shea (53)              Vice President           Officer     Managing Director of Morgan Stanley Investment Advisors
1221 Avenue of the Americas                            since 2006  Inc., Morgan Stanley Investment Management Inc., the Adviser
New York, NY 10020                                                 and Van Kampen Advisors Inc. Chief Investment Officer -
                                                                    Global Equity of the same entities since February 2006.
                                                                   Vice President of Morgan Stanley Institutional and Retail
                                                                   Funds since February 2006. Vice President of funds in the
                                                                   Fund Complex since March 2006. Previously, Managing Director
                                                                   and Director of Global Equity Research at Morgan Stanley
                                                                   from April 2000 to February 2006.

J. David Germany (52)         Vice President           Officer     Managing Director of Morgan Stanley Investment Advisors
25 Cabot Square                                        since 2006  Inc., Morgan Stanley Investment Management Inc., the Adviser
Canary Wharf                                                       and Van Kampen Advisors Inc. Chief Investment Officer -
London, GBR E14 4QA                                                Global Fixed Income of the same entities since December
                                                                   2005. Managing Director and Director of Morgan Stanley
                                                                   Investment Management Ltd. Director of Morgan Stanley
                                                                   Investment Management (ACD) Limited since December 2003.
                                                                   Vice President of Morgan Stanley Institutional and Retail
                                                                   Funds since February 2006. Vice President of funds in the
                                                                   Fund Complex since March 2006.


                                                                              51




VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST
TRUSTEE AND OFFICER INFORMATION continued
                                                        TERM OF
                                                       OFFICE AND
                                    POSITION(S)        LENGTH OF
NAME, AGE AND                        HELD WITH            TIME     PRINCIPAL OCCUPATION(S)
ADDRESS OF OFFICER                     TRUST             SERVED    DURING PAST 5 YEARS
                                                          

Amy R. Doberman (44)          Vice President           Officer     Managing Director and General Counsel - U.S. Investment
1221 Avenue of the Americas                            since 2004  Management; Managing Director of Morgan Stanley Investment
New York, NY 10020                                                 Management Inc., Morgan Stanley Investment Advisors Inc. and
                                                                   the Adviser. Vice President of the Morgan Stanley
                                                                   Institutional and Retail Funds since July 2004 and Vice
                                                                   President of funds in the Fund Complex since August 2004.
                                                                   Previously, Managing Director and General Counsel of
                                                                   Americas, UBS Global Asset Management from July 2000 to July
                                                                   2004 and General Counsel of Aeltus Investment Management,
                                                                   Inc. from January 1997 to July 2000.

Stefanie V. Chang (40)        Vice President           Officer     Executive Director of Morgan Stanley Investment Management
1221 Avenue of the Americas   and Secretary            since 2003  Inc. Vice President and Secretary of funds in the Fund
New York, NY 10020                                                 Complex.

John L. Sullivan (51)         Chief Compliance         Officer     Chief Compliance Officer of funds in the Fund Complex since
1 Parkview Plaza              Officer                  since 1998  August 2004. Prior to August 2004, Director and Managing
Oakbrook Terrace, IL 60181                                         Director of Van Kampen Investments, the Adviser, Van Kampen
                                                                   Advisors Inc. and certain other subsidiaries of Van Kampen
                                                                   Investments, Vice President, Chief Financial Officer and
                                                                   Treasurer of funds in the Fund Complex and head of Fund
                                                                   Accounting for Morgan Stanley Investment Management Inc.
                                                                   Prior to December 2002, Executive Director of Van Kampen
                                                                   Investments, the Adviser and Van Kampen Advisors Inc.

James W. Garrett (38)         Chief Financial Officer  Officer     Executive Director of Morgan Stanley Investment Management.
1221 Avenue of the Americas   and Treasurer            since 2006  Chief Financial Officer and Treasurer of Morgan Stanley
New York, NY 10020                                                 Institutional Funds since 2002 and of Funds in the Fund
                                                                   Complex from January 2005 to August 2005 and since September
                                                                   2006.


In accordance with Section 303A.12(a) of the New York Stock Exchange Listed
Company Manual, the Trust's Chief Executive Officer has certified to the New
York Stock Exchange that, as of June 29, 2006, he was not aware of any violation
by the Trust of NYSE corporate governance listing standards.

The certifications by the Trust's principal executive officer and principal
financial officer required by Rule 30a-2 under the 1940 Act were filed with the
Trust's report to the SEC on Form N-CSR and are available on the Securities and
Exchange Commission's web site at http://www.sec.gov.

 52


  Van Kampen Municipal Opportunity Trust

  An Important Notice Concerning Our U.S. Privacy Policy



  We are required by federal law to provide you with a copy of our Privacy
  Policy annually.

  The following Policy applies to current and former individual clients of Van
  Kampen Investments Inc., Van Kampen Asset Management, Van Kampen Advisors
  Inc., Van Kampen Funds Inc., Van Kampen Investor Services Inc. and Van
  Kampen Exchange Corp., as well as current and former individual investors in
  Van Kampen mutual funds, unit investment trusts, and related companies.

  This Policy is not applicable to partnerships, corporations, trusts or other
  non-individual clients or account holders, nor is this Policy applicable to
  individuals who are either beneficiaries of a trust for which we serve as
  trustee or participants in an employee benefit plan administered or advised
  by us. This Policy is, however, applicable to individuals who select us to
  be a custodian of securities or assets in individual retirement accounts,
  401(k) accounts, 529 Educational Savings Accounts, accounts subject to the
  Uniform Gifts to Minors Act, or similar accounts.

  Please note that we may amend this Policy at any time, and will inform you
  of any changes to this Policy as required by law.

  WE RESPECT YOUR PRIVACY

  We appreciate that you have provided us with your personal financial
  information. We strive to maintain the privacy of such information while we
  help you achieve your financial objectives. This Policy describes what
  non-public personal information we collect about you, why we collect it, and
  when we may share it with others.

  We hope this Policy will help you understand how we collect and share
  non-public personal information that we gather about you. Throughout this
  Policy, we refer to the non-public information that personally identifies
  you or your accounts as "personal information."

  1. WHAT PERSONAL INFORMATION DO WE COLLECT ABOUT YOU?

  To serve you better and manage our business, it is important that we collect
  and maintain accurate information about you. We may obtain this information
  from applications and other forms you submit to us, from your dealings with
  us, from consumer reporting agencies, from our Web sites and from third
  parties and other sources.

                                                      (continued on next page)

  Van Kampen Municipal Opportunity Trust

  An Important Notice Concerning Our U.S. Privacy Policy  continued

  For example:

   --  We may collect information such as your name, address, e-mail address,
       telephone/fax numbers, assets, income and investment objectives through
       applications and other forms you submit to us.

   --  We may obtain information about account balances, your use of
       account(s) and the types of products and services you prefer to receive
       from us through your dealings and transactions with us and other
       sources.

   --  We may obtain information about your creditworthiness and credit
       history from consumer reporting agencies.

   --  We may collect background information from and through third-party
       vendors to verify representations you have made and to comply with
       various regulatory requirements.

   --  If you interact with us through our public and private Web sites, we
       may collect information that you provide directly through online
       communications (such as an e-mail address). We may also collect
       information about your Internet service provider, your domain name,
       your computer's operating system and Web browser, your use of our Web
       sites and your product and service preferences, through the use of
       "cookies." "Cookies" recognize your computer each time you return to
       one of our sites, and help to improve our sites' content and
       personalize your experience on our sites by, for example, suggesting
       offerings that may interest you. Please consult the Terms of Use of
       these sites for more details on our use of cookies.

  2. WHEN DO WE DISCLOSE PERSONAL INFORMATION WE COLLECT ABOUT YOU?

  To provide you with the products and services you request, to serve you
  better and to manage our business, we may disclose personal information we
  collect about you to our affiliated companies and to non-affiliated third
  parties as required or permitted by law.

  A. INFORMATION WE DISCLOSE TO OUR AFFILIATED COMPANIES. We do not disclose
  personal information that we collect about you to our affiliated companies
  except to enable them to provide services on our behalf or as otherwise
  required or permitted by law.

  B. INFORMATION WE DISCLOSE TO THIRD PARTIES. We do not disclose personal
  information that we collect about you to non-affiliated third parties except
  to enable them to provide services on our behalf, to perform joint marketing
  agreements with

                                                           (continued on back)

  Van Kampen Municipal Opportunity Trust

  An Important Notice Concerning Our U.S. Privacy Policy  continued

  other financial institutions, or as otherwise required or permitted by law.
  For example, some instances where we may disclose information about you to
  non-affiliated third parties include: for servicing and processing
  transactions, to offer our own products and services, to protect against
  fraud, for institutional risk control, to respond to judicial process or to
  perform services on our behalf. When we share personal information with
  these companies, they are required to limit their use of personal
  information to the particular purpose for which it was shared and they are
  not allowed to share personal information with others except to fulfill that
  limited purpose.

  3. HOW DO WE PROTECT THE SECURITY AND CONFIDENTIALITY OF PERSONAL
  INFORMATION WE COLLECT ABOUT YOU?

  We maintain physical, electronic and procedural security measures to help
  safeguard the personal information we collect about you. We have internal
  policies governing the proper handling of client information. Third parties
  that provide support or marketing services on our behalf may also receive
  personal information, and we require them to adhere to confidentiality
  standards with respect to such information.

                                                         Van Kampen Funds Inc.
                                               1 Parkview Plaza, P.O. Box 5555
                                               Oakbrook Terrace, IL 60181-5555
                                                             www.vankampen.com

                                       Copyright (C)2006 Van Kampen Funds Inc.
                                        All rights reserved. Member NASD/SIPC.

                                                                  VMOANR 12/06
    (VAN KAMPEN INVESTMENTS LOGO)                           RN06-03476P-Y10/06


Item 2. Code of Ethics.

(a) The Trust has adopted a code of ethics (the "Code of Ethics") that applies
to its principal executive officer, principal financial officer, principal
accounting officer or controller, or persons performing similar functions,
regardless of whether these individuals are employed by the Trust or a third
party.

(b) No information need be disclosed pursuant to this paragraph.

(c) Not applicable.

(d) Not applicable.

(e) Not applicable.

(f)

     (1) The Trust's Code of Ethics is attached hereto as Exhibit 12A.

     (2) Not applicable.

     (3) Not applicable.

Item 3. Audit Committee Financial Expert.

The Trust's Board of Trustees has determined that it has three "audit committee
financial experts" serving on its audit committee, each of whom are
"independent" Trustees: Rod Dammeyer, Jerry Choate and R. Craig Kennedy. Under
applicable securities laws, a person who is determined to be an audit committee
financial expert will not be deemed an "expert" for any purpose, including
without limitation for the purposes of Section 11 of the Securities Act of 1933,
as a result of being designated or identified as an audit committee financial
expert. The designation or identification of a person as an audit committee
financial expert does not impose on such person any duties, obligations, or
liabilities that are greater than the duties, obligations, and liabilities
imposed on such person as a member of the audit committee and Board of Trustees
in the absence of such designation or identification.



Item 4. Principal Accountant Fees and Services.

(a)(b)(c)(d) and (g). Based on fees billed for the periods shown:

2006



                                                                     COVERED
                                                      REGISTRANT   ENTITIES(1)
                                                      ----------   -----------
                                                             
AUDIT FEES ........................................    $33,300           N/A
NON-AUDIT FEES
   AUDIT-RELATED FEES .............................    $   400      $244,200(2)
   TAX FEES .......................................    $ 1,600(3)   $      0
   ALL OTHER FEES .................................    $     0      $      0
TOTAL NON-AUDIT FEES ..............................    $ 2,000      $244,200
                                                       -------      --------
TOTAL .............................................    $35,300      $244,200
                                                       =======      ========


2005



                                                                     COVERED
                                                      REGISTRANT   ENTITIES(1)
                                                      ----------   -----------
                                                             
AUDIT FEES ........................................    $32,350           N/A
NON-AUDIT FEES
   AUDIT-RELATED FEES .............................    $   400      $321,000(2)
   TAX FEES .......................................    $ 1,600(3)   $      0
   ALL OTHER FEES .................................    $     0      $      0
TOTAL NON-AUDIT FEES ..............................    $ 2,000      $321,000
                                                       -------      --------
TOTAL .............................................    $34,350      $321,000
                                                       =======      ========


N/A- Not applicable, as not required by Item 4.

(1)  Covered Entities include the Adviser (excluding sub-advisors) and any
     entity controlling, controlled by or under common control with the Adviser
     that provides ongoing services to the Registrant.

(2)  Audit-Related Fees represent assurance and related services provided that
     are reasonably related to the performance of the audit of the financial
     statements of the Covered Entities' and funds advised by the Adviser or its
     affiliates, specifically attestation services provided in connection with a
     SAS 70 Report.

(3)  Tax Fees represent tax advice and compliance services provided in
     connection with the review of the Registrant's tax.



(e)(1) The audit committee's pre-approval policies and procedures are as
     follows:

                              JOINT AUDIT COMMITTEE
                          AUDIT AND NON-AUDIT SERVICES
                       PRE-APPROVAL POLICY AND PROCEDURES
                                     OF THE
                                VAN KAMPEN FUNDS

              AS ADOPTED JULY 23, 2003 AND AMENDED MAY 26, 2004(1)

1.   STATEMENT OF PRINCIPLES

     The Audit Committee of the Board is required to review and, in its sole
discretion, pre-approve all Covered Services to be provided by the Independent
Auditors to the Fund and Covered Entities in order to assure that services
performed by the Independent Auditors do not impair the auditor's independence
from the Fund.(2)

     The SEC has issued rules specifying the types of services that an
independent auditor may not provide to its audit client, as well as the audit
committee's administration of the engagement of the independent auditor. The
SEC's rules establish two different approaches to pre-approving services, which
the SEC considers to be equally valid. Proposed services either: may be
pre-approved without consideration of specific case-by-case services by the
Audit Committee ("general pre-approval"); or require the specific pre-approval
of the Audit Committee ("specific pre-approval"). The Audit Committee believes
that the combination of these two approaches in this Policy will result in an
effective and efficient procedure to pre-approve services performed by the
Independent Auditors. As set forth in this Policy, unless a type of service has
received general pre-approval, it will require specific pre-approval by the
Audit Committee (or by any member of the Audit Committee to which pre-approval
authority has been delegated) if it is to be provided by the Independent
Auditors. Any proposed services exceeding pre-approved cost levels or budgeted
amounts will also require specific pre-approval by the Audit Committee.

     For both types of pre-approval, the Audit Committee will consider whether
such services are consistent with the SEC's rules on auditor independence. The
Audit Committee will also consider whether the Independent Auditors are best
positioned to provide the most effective and efficient services, for reasons
such as its familiarity with the Fund's business, people, culture, accounting
systems, risk profile and other factors, and whether the service might enhance
the Fund's ability to manage or control risk or improve audit quality. All such
factors will be considered as a whole, and no one factor should necessarily be
determinative.

     The Audit Committee is also mindful of the relationship between fees for
audit and non-audit services in deciding whether to pre-approve any such
services and may determine for each fiscal year, the appropriate ratio between
the total amount of fees for Audit, Audit-related and Tax services for the Fund
(including any Audit-related or Tax service fees for Covered Entities that were
subject to pre-approval), and the total amount of fees for certain permissible
non-audit services classified as All Other services for the Fund (including any
such services for Covered Entities subject to pre-approval).

     The appendices to this Policy describe the Audit, Audit-related, Tax and
All Other services that have the general pre-approval of the Audit Committee.
The term of any general pre-approval is 12 months from the date of pre-approval,
unless the Audit Committee considers and provides a different period and states
otherwise. The Audit Committee will annually review and pre-approve the services
that may be provided by the Independent Auditors without obtaining specific
pre-approval

----------
(1)  This Joint Audit Committee Audit and Non-Audit Services Pre-Approval Policy
     and Procedures (the "Policy"), amended as of the date above, supercedes and
     replaces all prior versions that may have been amended from time to time.

(2)  Terms used in this Policy and not otherwise defined herein shall have the
     meanings as defined in the Joint Audit Committee Charter.



from the Audit Committee. The Audit Committee will add to or subtract from the
list of general pre-approved services from time to time, based on subsequent
determinations.

     The purpose of this Policy is to set forth the policy and procedures by
which the Audit Committee intends to fulfill its responsibilities. It does not
delegate the Audit Committee's responsibilities to pre-approve services
performed by the Independent Auditors to management.

     The Fund's Independent Auditors have reviewed this Policy and believes that
implementation of the Policy will not adversely affect the Independent Auditors'
independence.

2.   DELEGATION

     As provided in the Act and the SEC's rules, the Audit Committee may
delegate either type of pre-approval authority to one or more of its members.
The member to whom such authority is delegated must report, for informational
purposes only, any pre-approval decisions to the Audit Committee at its next
scheduled meeting.

3.   AUDIT SERVICES

     The annual Audit services engagement terms and fees are subject to the
specific pre-approval of the Audit Committee. Audit services include the annual
financial statement audit and other procedures required to be performed by the
Independent Auditors to be able to form an opinion on the Fund's financial
statements. These other procedures include information systems and procedural
reviews and testing performed in order to understand and place reliance on the
systems of internal control, and consultations relating to the audit. The Audit
Committee will monitor the Audit services engagement as necessary, but no less
than on a quarterly basis, and will also approve, if necessary, any changes in
terms, conditions and fees resulting from changes in audit scope, Fund structure
or other items.

     In addition to the annual Audit services engagement approved by the Audit
Committee, the Audit Committee may grant general pre-approval to other Audit
services, which are those services that only the Independent Auditors reasonably
can provide. Other Audit services may include statutory audits and services
associated with SEC registration statements (on Forms N-1A, N-2, N-3, N-4,
etc.), periodic reports and other documents filed with the SEC or other
documents issued in connection with securities offerings.

     The Audit Committee has pre-approved the Audit services in Appendix B.1.
All other Audit services not listed in Appendix B.1 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

4.   AUDIT-RELATED SERVICES

     Audit-related services are assurance and related services that are
reasonably related to the performance of the audit or review of the Fund's
financial statements or, to the extent they are Covered Services, the Covered
Entities' financial statements, or that are traditionally performed by the
Independent Auditors. Because the Audit Committee believes that the provision of
Audit-related services does not impair the independence of the auditor and is
consistent with the SEC's rules on auditor independence, the Audit Committee may
grant general pre-approval to Audit-related services. Audit-related services
include, among others, accounting consultations related to accounting, financial
reporting or disclosure matters not classified as "Audit services"; assistance
with understanding and implementing new accounting and financial reporting
guidance from rulemaking authorities; agreed-upon or expanded audit procedures
related to accounting and/or billing records required to respond to or comply
with financial, accounting or regulatory reporting matters; and assistance with
internal control reporting requirements under Forms N-SAR and/or N-CSR.



     The Audit Committee has pre-approved the Audit-related services in Appendix
B.2. All other Audit-related services not listed in Appendix B.2 must be
specifically pre-approved by the Audit Committee (or by any member of the Audit
Committee to which pre-approval has been delegated).

5.   TAX SERVICES

     The Audit Committee believes that the Independent Auditors can provide Tax
services to the Fund and, to the extent they are Covered Services, the Covered
Entities, such as tax compliance, tax planning and tax advice without impairing
the auditor's independence, and the SEC has stated that the Independent Auditors
may provide such services. Hence, the Audit Committee believes it may grant
general pre-approval to those Tax services that have historically been provided
by the Independent Auditors, that the Audit Committee has reviewed and believes
would not impair the independence of the Independent Auditors, and that are
consistent with the SEC's rules on auditor independence. The Audit Committee
will not permit the retention of the Independent Auditors in connection with a
transaction initially recommended by the Independent Auditors, the sole business
purpose of which may be tax avoidance and the tax treatment of which may not be
supported in the Internal Revenue Code and related regulations. The Audit
Committee will consult with Director of Tax or outside counsel to determine that
the tax planning and reporting positions are consistent with this policy.

     Pursuant to the preceding paragraph, the Audit Committee has pre-approved
the Tax Services in Appendix B.3. All Tax services involving large and complex
transactions not listed in Appendix B.3 must be specifically pre-approved by the
Audit Committee (or by any member of the Audit Committee to which pre-approval
has been delegated), including tax services proposed to be provided by the
Independent Auditors to any executive officer or trustee/director/managing
general partner of the Fund, in his or her individual capacity, where such
services are paid for by the Fund (generally applicable only to internally
managed investment companies).

6.   ALL OTHER SERVICES

     The Audit Committee believes, based on the SEC's rules prohibiting the
Independent Auditors from providing specific non-audit services, that other
types of non-audit services are permitted. Accordingly, the Audit Committee
believes it may grant general pre-approval to those permissible non-audit
services classified as All Other services that it believes are routine and
recurring services, would not impair the independence of the auditor and are
consistent with the SEC's rules on auditor independence.

     The Audit Committee has pre-approved the All Other services in Appendix
B.4. Permissible All Other services not listed in Appendix B.4 must be
specifically pre-approved by the Audit Committee (or by any member of the Audit
Committee to which pre-approval has been delegated).

     A list of the SEC's prohibited non-audit services is attached to this
policy as Appendix B.5. The SEC's rules and relevant guidance should be
consulted to determine the precise definitions of these services and the
applicability of exceptions to certain of the prohibitions.

7.   PRE-APPROVAL FEE LEVELS OR BUDGETED AMOUNTS

     Pre-approval fee levels or budgeted amounts for all services to be provided
by the Independent Auditors will be established annually by the Audit Committee.
Any proposed services exceeding these levels or amounts will require specific
pre-approval by the Audit Committee. The Audit Committee is mindful of the
overall relationship of fees for audit and non-audit services in determining
whether to pre-approve any such services. For each fiscal year, the Audit
Committee may determine the appropriate ratio between the total amount of fees
for Audit, Audit-related, and Tax services for the Fund (including any
Audit-related or Tax services fees for Covered Entities subject to
pre-approval), and the total amount of fees for certain permissible non-audit
services classified as All Other services for the Fund (including any such
services for Covered Entities subject to pre-approval).



8.   PROCEDURES

     All requests or applications for services to be provided by the Independent
Auditors that do not require specific approval by the Audit Committee will be
submitted to the Fund's Chief Financial Officer and must include a detailed
description of the services to be rendered. The Fund's Chief Financial Officer
will determine whether such services are included within the list of services
that have received the general pre-approval of the Audit Committee. The Audit
Committee will be informed on a timely basis of any such services rendered by
the Independent Auditors. Requests or applications to provide services that
require specific approval by the Audit Committee will be submitted to the Audit
Committee by both the Independent Auditors and the Fund's Chief Financial
Officer, and must include a joint statement as to whether, in their view, the
request or application is consistent with the SEC's rules on auditor
independence.

     The Audit Committee has designated the Fund's Chief Financial Officer to
monitor the performance of all services provided by the Independent Auditors and
to determine whether such services are in compliance with this Policy. The
Fund's Chief Financial Officer will report to the Audit Committee on a periodic
basis on the results of its monitoring. A sample report is included as Appendix
B.7. Both the Fund's Chief Financial Officer and management will immediately
report to the chairman of the Audit Committee any breach of this Policy that
comes to the attention of the Fund's Chief Financial Officer or any member of
management.

9.   ADDITIONAL REQUIREMENTS

     The Audit Committee has determined to take additional measures on an annual
basis to meet its responsibility to oversee the work of the Independent Auditors
and to assure the auditor's independence from the Fund, such as reviewing a
formal written statement from the Independent Auditors delineating all
relationships between the Independent Auditors and the Fund, consistent with
Independence Standards Board No. 1, and discussing with the Independent Auditors
its methods and procedures for ensuring independence.

10.  COVERED ENTITIES

     Covered Entities include the Fund's investment adviser(s) and any entity
controlling, controlled by or under common control with the Fund's investment
adviser(s) that provides ongoing services to the Fund(s). Beginning with
non-audit service contracts entered into on or after May 6, 2003, the Fund's
audit committee must pre-approve non-audit services provided not only to the
Fund but also to the Covered Entities if the engagements relate directly to the
operations and financial reporting of the Fund. This list of Covered Entities
would include:

     -    Van Kampen Investments Inc.

     -    Van Kampen Asset Management

     -    Van Kampen Advisors Inc.

     -    Van Kampen Funds Inc.

     -    Van Kampen Investor Services Inc.

     -    Morgan Stanley Investment Management Inc.

     -    Morgan Stanley Trust Company

     -    Morgan Stanley Investment Management Ltd.

     -    Morgan Stanley Investment Management Company

     -    Morgan Stanley Asset & Investment Trust Management Company Ltd.

(e)(2) Beginning with non-audit service contracts entered into on or after May
6, 2003, the audit committee also is required to pre-approve services to Covered
Entities to the extent that the services



are determined to have a direct impact on the operations or financial reporting
of the Registrant. 100% of such services were pre-approved by the audit
committee pursuant to the Audit Committee's pre-approval policies and procedures
(included herein).

(f) Not applicable.

(g) See table above.

(h) The audit committee of the Board of Trustees has considered whether the
provision of services other than audit services performed by the auditors to the
Registrant and Covered Entities is compatible with maintaining the auditors'
independence in performing audit services.

Item 5. Audit Committee of Listed Registrants.

(a) The Trust has a separately-designated standing audit committee established
in accordance with Section 3(a)(58)(A) of the Exchange Act whose members are: R.
Craig Kennedy, Jerry Choate and Rod Dammeyer.

(b) Not applicable.

Item 6. Schedule of Investments.

Please refer to Item #1.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End
Management Investment Companies.

The Trust invests in exclusively non-voting securities and therefore this item
is not applicable to the Trust.

Item 8. Portfolio Managers of Closed-End Management Investment Companies.

            VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST (VMO) (THE "FUND")

                                 FUND MANAGEMENT

PORTFOLIO MANAGEMENT. As of the date of this report, the Fund is managed by
members of the Municipal Fixed Income team. The team consists of portfolio
managers and analysts. Current members of the team jointly and primarily
responsible for the day-to-day management of the Fund's portfolio and the
overall execution of the strategy of the Fund are Dennis P. Pietrzak, an
Executive Director of the Adviser, Robert W. Wimmel, a Vice President of the
Adviser and John Reynoldson, an Executive Director of the Adviser.

Mr. Pietrzak has been associated with the Adviser in an investment management
capacity since August 1995 and began managing the Fund in August 1995. Mr.
Wimmel has been associated with the Adviser in an investment management capacity
since August 1996 and began managing the Fund in November 2001. Mr. Reynoldson
has been associated with the Adviser in an investment management capacity since
April 1987 and began managing the Fund in November 2001.

The composition of the team may change from time to time.

OTHER ACCOUNTS MANAGED BY THE PORTFOLIO MANAGERS

As of October 31, 2006:

Mr. Pietrzak managed eight registered investment companies with a total of
approximately $2.7 billion in assets; no pooled investment vehicles other than
registered investment companies; and no other accounts.



Mr. Wimmel managed 25 registered investment companies with a total of
approximately $12.6 billion in assets; no pooled investment vehicles other than
registered investment companies; and no other accounts.

Mr. Reynoldson managed 19 registered investment companies with a total of
approximately $7.7 billion in assets; no pooled investment vehicles other than
registered investment companies; and no other accounts.

Because the portfolio managers manage assets for other investment companies,
pooled investment vehicles, and/or other accounts (including institutional
clients, pension plans and certain high net worth individuals), there may be an
incentive to favor one client over another resulting in conflicts of interest.
For instance, the Adviser may receive fees from certain accounts that are higher
than the fee it receives from the Fund, or it may receive a performance-based
fee on certain accounts. In those instances, the portfolio manager may have an
incentive to favor the higher and/or performance-based fee accounts over the
Fund. The portfolio managers of the Fund do not currently manage assets of other
investment companies, pooled investment vehicles or other accounts that charge a
performance fee. The Adviser has adopted trade allocation and other policies and
procedures that it believes are reasonably designed to address these and other
conflicts of interest.

PORTFOLIO MANAGER COMPENSATION STRUCTURE

Portfolio managers receive a combination of base compensation and discretionary
compensation, comprised of a cash bonus and several deferred compensation
programs described below. The methodology used to determine portfolio manager
compensation is applied across all accounts managed by the portfolio manager.

Base salary compensation. Generally, portfolio managers receive base salary
compensation based on the level of their position with the Adviser.

Discretionary compensation. In addition to base compensation, portfolio managers
may receive discretionary compensation.

Discretionary compensation can include:

- Cash Bonus.

- Morgan Stanley's Equity Incentive Compensation Program (EICP) awards -- a
mandatory program that defers a portion of discretionary year-end compensation
into restricted stock units or other awards based on Morgan Stanley common stock
that are subject to vesting and other conditions.

- Investment Management Alignment Plan (IMAP) awards -- a mandatory program that
defers a portion of discretionary year-end compensation and notionally invests
it in designated Funds advised by the Adviser or its affiliates. The award is
subject to vesting and other conditions. Portfolio managers must notionally
invest a minimum of 25% to a maximum of 100% of the IMAP deferral into a
combination of the designated open-end mutual funds they manage that are
included in the IMAP Fund menu, which may or may not include the Fund.

- Voluntary Deferred Compensation Plans -- voluntary programs that permit
certain employees to elect to defer a portion of their discretionary year-end
compensation and directly or notionally invest the deferred amount: (1) across a
range of designated investment Funds, including Funds advised by the Adviser or
its affiliates; and/or (2) in Morgan Stanley stock units.

Several factors determine discretionary compensation, which can vary by
portfolio management team and circumstances. In order of relative importance,
these factors include:

- Investment performance. A portfolio manager's compensation is linked to the
pre-tax investment performance of the funds/accounts managed by the portfolio
manager. Investment performance is calculated for one-, three- and five-year
periods measured against a fund's/account's primary benchmark, indices and/or
peer groups where applicable. Generally, the greatest weight is placed on the
three- and five-year periods.



- Revenues generated by the investment companies, pooled investment vehicles and
other accounts managed by the portfolio manager.

- Contribution to the business objectives of the Adviser.

- The dollar amount of assets managed by the portfolio manager.

- Market compensation survey research by independent third parties.

- Other qualitative factors, such as contributions to client objectives.

- Performance of Morgan Stanley and Morgan Stanley Investment Management, and
the overall performance of the investment team(s) of which the portfolio manager
is a member.

SECURITIES OWNERSHIP OF PORTFOLIO MANAGERS

As of October 31, 2006, the portfolio managers did not own any shares of the
Fund.

Item 9. Purchase of Equity Securities by Closed-End Management Investment
Company and Affiliated Purchasers.

Not Applicable.

Item 10. Submission of Matters to a Vote of Security Holders.

Not Applicable.

Item 11. Controls and Procedures

a) The Trust's principal executive officer and principal financial officer have
concluded that the Trust's disclosure controls and procedures are sufficient to
provide reasonable assurance that information required to be disclosed by the
Trust in this Form N-CSR was recorded, processed, summarized and reported within
the time periods specified in the Securities and Exchange Commission's ("SEC")
rules and forms or by the SEC staff, based upon such officers' evaluation of
these controls and procedures as of January 12, which is a date within 90 days
of the filing date of the report. The Trust's principal executive officer and
principal financial officer have also concluded that the Trust's disclosure
controls and procedures designed to ensure that information required to be
disclosed by the Trust in this Form N-CSR is accumulated and communicated to the
Trust's management, including its principal executive officer and principal
financial officer, as appropriate to allow timely decisions regarding required
disclosure were effective.

Management of the Trust has determined that as of and prior to October 31, 2006,
the Trust's fiscal year end, the Trust had a deficiency in its internal control
over financial reporting related to the review, analysis and determination of
whether certain transfers of municipal securities qualified for sale accounting
under the provisions of Statement of Financial Accounting Standards No. 140
"Accounting for Transfers and Servicing of Financial Assets and Extinguishments
of Liabilities." As a result, the Trust's independent registered public
accountants advised the Trust that this control deficiency represented a
material weakness in internal control over financial reporting as of October 31,
2006. Since October 31, 2006, and prior to the issuance of the Trust's annual
report, management has revised its disclosure controls and procedures and its
internal control over financial reporting in order to improve the controls'
effectiveness to ensure that transactions in transfers of municipal securities
are accounted for properly.

Management notes that other investment companies investing in similar
investments over the same time periods had been accounting for such investments
in a similar manner as the Trust. Accordingly, other investment companies are
also concluding that there was a material weakness in their internal control
over financial reporting of such investments. The changes in the Trust's
financial statements did not impact the net asset value of the Trust's shares or
the Trust's total return for any period.

(b) There were no changes in the Trust's internal control over financial
reporting that occurred during the second fiscal quarter of the period covered
by this report that have materially affected, or are reasonably likely to
materially affect, the Trust's internal control over financial reporting.
However, as discussed above, subsequent to October 31, 2006, the Trust's
internal control over financial reporting was revised.

Item 12. Exhibits.

(1) The Code of Ethics for Principal Executive and Senior Financial Officers is
attached hereto.

(2)(a) A certification for the Principal Executive Officer of the registrant is
attached hereto as part of EX-99.CERT.

(2)(b) A certification for the Principal Financial Officer of the registrant is
attached hereto as part of EX-99.CERT.



SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant) Van Kampen Municipal
Opportunity Trust


By: /s/ Ronald E. Robison
    ---------------------------------
Name: Ronald E. Robison
Title: Principal Executive Officer
Date: January 12, 2007

Pursuant to the requirements of the Securities Exchange Act of 1934 and the
Investment Company Act of 1940, this report has been signed by the following
persons on behalf of the registrant and in the capacities and on the dates
indicated.


By: /s/ Ronald E. Robison
    ---------------------------------
Name: Ronald E. Robison
Title: Principal Executive Officer
Date: January 12, 2007


By: /s/ James W. Garrett
    ---------------------------------
Name: James W. Garrett
Title: Principal Financial Officer
Date: January 12, 2007