SCHEDULE 14A INFORMATION
 
          PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES
                   EXCHANGE ACT OF 1934 (AMENDMENT NO.      )
 
Filed by the Registrant [X]
Filed by a Party other than the Registrant [ ]
 
Check the appropriate box:
 
[ ] Preliminary Proxy Statement      [ ] Confidential, for Use of the Com-
                                         mission Only (as permitted by
                                         Rule 14a-6(e)(2))
[X] Definitive Proxy Statement
[ ] Definitive Revised Materials
[ ] Soliciting Material Pursuant to Section 140.12a-12 14a-12
 
                         VAN KAMPEN SENIOR INCOME TRUST
 
                (Name of Registrant as Specified in its Charter)
 
Payment of Filing Fee (Check the appropriate box):
 
[X] No fee required.
 
[ ] Fee computed per Exchange Act Rules 14a-6(i)(1) and 0-11.
 
[ ] Fee paid previously with preliminary materials.

 
                                --  JUNE 2005  --
--------------------------------------------------------------------------------
                                IMPORTANT NOTICE
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
                                 TO VAN KAMPEN
                        SENIOR INCOME TRUST SHAREHOLDERS
--------------------------------------------------------------------------------
 
QUESTIONS & ANSWERS
 
---------------------------------------
Although we recommend that you read the complete Joint Proxy Statement, we have
  provided for your convenience a brief overview of the issues to be voted on.
---------------------------------------
Q      WHY IS A SHAREHOLDER
       MEETING BEING HELD?

A      The Van Kampen Senior
Income Trust is traded on a nationally recognized stock exchange and is required
to hold an annual meeting of shareholders.

Q      WHAT PROPOSAL WILL BE
       VOTED ON?

A      You are being asked to elect
nominees for the Board of Trustees.

Q      WILL MY VOTE MAKE
       A DIFFERENCE?

A      Yes, your vote is important
and will make a difference no matter how many shares you own. We encourage all
shareholders to participate in the governance of their Fund.

Q      HOW DOES THE BOARD OF
       TRUSTEES RECOMMEND THAT I VOTE?

A      The Board recommends
that you vote "FOR ALL" of the nominees on the enclosed proxy card.

Q      HOW DO I VOTE MY PROXY?

A      You may cast your vote by
mail, phone or internet. To vote by mail, please mark your vote on the enclosed
proxy card and sign, date and return the card in the postage-paid envelope
provided. If you choose to vote via phone or internet, please refer to the
instructions found on the proxy card accompanying this Proxy Statement. To vote
by phone or internet, you will need the "control number" that appears on the
proxy card.

Q      WHERE DO I CALL FOR
       MORE INFORMATION?

A      Please call Van Kampen's
Client Relations Department at 1-800-341-2929 (Telecommunications Device for the
Deaf users may call 1-800-421-2833) or visit our website at www.vankampen.com,
where you can send us an e-mail message by selecting "Contact Us."

 
                              ABOUT THE PROXY CARD
--------------------------------------------------------------------------------
 
Please vote on each issue using blue or black ink to mark an X in one of the
boxes provided on the proxy card.
 
ELECTION OF TRUSTEES - mark "FOR ALL," "WITHHOLD" or "FOR ALL EXCEPT."
 
To withhold authority to vote for any one or more individual nominee(s), check
"FOR ALL EXCEPT" and write the nominee's name in the line below.
 
Sign, date and return the proxy card in the enclosed postage-paid envelope. All
registered owners of an account, as shown in the address, must sign the card.
When signing as attorney, trustee, executor, administrator, custodian, guardian
or corporate officer, please indicate your full title.
 

  
[X]  PLEASE MARK
     VOTES AS IN
     THIS EXAMPLE

 
                         VAN KAMPEN SENIOR INCOME TRUST
                         ANNUAL MEETING OF SHAREHOLDERS
 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 


                                             FOR ALL
                          FOR ALL  WITHHOLD  EXCEPT
                                         
1x.  Authority to vote        [ ]    [ ]       [ ]      2. To transact such other business as may
     for the election as                                   properly come before the Meeting.
     Class X Trustees
     the nominees named
     below:
 
XXXXXXXXX, XXXXXXXXX, XXXXXXXXX
 
     To withhold authority to vote for any one or more
     individual nominee check "For All Except" and write
     the
     nominee's name on the line below.
     ----------------------------------

 
Please be sure to sign and date this Proxy, Date
 
Shareholder sign here       Co-owner sign here
 
 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
                   SAMPLE

 
                         VAN KAMPEN SENIOR INCOME TRUST
 
                          1221 AVENUE OF THE AMERICAS
                            NEW YORK, NEW YORK 10020
                            TELEPHONE (800) 341-2929
 
                    NOTICE OF ANNUAL MEETING OF SHAREHOLDERS
 
                            TO BE HELD JULY 25, 2005
 
  Notice is hereby given to the holders of common shares of beneficial interest
("Common Shares") of the Van Kampen Senior Income Trust (the "Fund") that the
Annual Meeting of Shareholders of the Fund (the "Meeting") will be held at the
offices of Van Kampen Investments Inc., 1 Parkview Plaza, Oakbrook Terrace,
Illinois 60181-5555, on Monday, July 25, 2005, at 9:00 a.m., for the following
purposes:
 

  
1.   To elect two Class I trustees, each by the holders of Common
     Shares of the Fund, to each serve for a three year term or
     until a successor shall have been duly elected and
     qualified.

2.   To transact such other business as may properly come before
     the Meeting or any adjournments thereof.

 
  Holders of record of the Common Shares the Fund at the close of business on
June 6, 2005 are entitled to notice of and to vote at the Meeting and any
adjournment thereof.
 
                                    By order of the Board of Trustees
 
                                    Lou Anne McInnis,
                                    Assistant Secretary
June 13, 2005

 
  THE FUND WILL FURNISH, WITHOUT CHARGE, A COPY OF ITS ANNUAL REPORT AND SEMI-
ANNUAL REPORT TO ANY SHAREHOLDER UPON REQUEST. ANY SUCH REQUEST SHOULD BE
DIRECTED TO THE FUND BY CALLING 1-800-341-2929 (TDD USERS MAY CALL
1-800-421-2833) OR BY WRITING TO THE FUND AT 1 PARKVIEW PLAZA, PO BOX 5555,
OAKBROOK TERRACE, ILLINOIS 60181-5555.
 
  SHAREHOLDERS OF THE FUND ARE INVITED TO ATTEND THE MEETING IN PERSON. IF YOU
DO NOT EXPECT TO ATTEND THE MEETING, PLEASE INDICATE YOUR VOTING INSTRUCTIONS ON
THE ENCLOSED PROXY CARD, DATE AND SIGN SUCH PROXY CARD(S), AND RETURN IT IN THE
ENVELOPE PROVIDED, WHICH IS ADDRESSED FOR YOUR CONVENIENCE AND NEEDS NO POSTAGE
IF MAILED IN THE UNITED STATES. YOU MAY ALSO RECORD YOUR VOTING INSTRUCTIONS BY
TELEPHONE OR VIA THE INTERNET.
 
  IN ORDER TO AVOID THE ADDITIONAL EXPENSE OF FURTHER SOLICITATION, WE ASK THAT
YOU MAIL YOUR PROXY PROMPTLY OR RECORD YOUR VOTING INSTRUCTIONS BY TELEPHONE OR
VIA THE INTERNET.
 
  The Board of Trustees of the Fund recommends that you cast your vote:
 
  - FOR ALL of the nominees for the Board of Trustees listed in the Proxy
    Statement.
 
                            YOUR VOTE IS IMPORTANT.
                     PLEASE RETURN YOUR PROXY CARD PROMPTLY
                       NO MATTER HOW MANY SHARES YOU OWN.

 
                                PROXY STATEMENT
 
                         VAN KAMPEN SENIOR INCOME TRUST
 
                          1221 AVENUE OF THE AMERICAS
                            NEW YORK, NEW YORK 10020
                            TELEPHONE (800) 341-2929
 
                         ANNUAL MEETING OF SHAREHOLDERS
 
                                 JULY 25, 2005
 
                                  INTRODUCTION
 
  This Proxy Statement is furnished in connection with the solicitation by the
Board of Trustees (the "Trustees" or the "Board") of the Van Kampen Senior
Income Trust (the "Fund") of proxies to be voted at an Annual Meeting of
Shareholders of the Fund, and all adjournments thereof (the "Meeting"), to be
held at the offices of Van Kampen Investments Inc., 1 Parkview Plaza, Oakbrook
Terrace, Illinois 60181-5555, on Monday, July 25, 2005, at 9:00 a.m. The Meeting
will be an annual meeting for the Fund. The approximate mailing date of this
Proxy Statement and accompanying form of proxy is June 20, 2005.
 
  Participating in the Meeting are holders of common shares of beneficial
interest (the "Common Shares") of the Fund. The purpose of the Meeting is to
permit holders of the Fund's Common Shares to elect two Trustees.
 
  The Board has fixed the close of business on June 6, 2005 as the record date
(the "Record Date") for the determination of holders of Common Shares of the
Fund entitled to vote at the Meeting. Shareholders of the Fund on the Record
Date are entitled to one vote per Common Share with respect to any proposal
submitted to the shareholders of the Fund, with no Common Share having
cumulative voting rights. At the close of business on June 6, 2005, there were
issued and outstanding 180,010,000 Common Shares of the Fund.
 
  THE FUND WILL FURNISH, WITHOUT CHARGE, A COPY OF ITS MOST RECENT ANNUAL REPORT
AND SEMI-ANNUAL REPORT TO ANY SHAREHOLDER UPON REQUEST. ANY SUCH REQUEST SHOULD
BE DIRECTED TO THE FUND BY CALLING 1-800-341-2929 (TDD USERS MAY CALL
1-800-421-2833) OR BY WRITING TO THE FUND AT 1 PARKVIEW PLAZA, PO BOX 5555,
OAKBROOK TERRACE, ILLINOIS 60181-5555.

 
VOTING AND SHAREHOLDER APPROVAL
 
  With respect to the election of Trustees, the affirmative vote of a plurality
of the Common Shares of the Fund present at the Meeting in person or by proxy is
required to elect each nominee for Trustee of the Fund. Election by plurality
means those persons who receive the highest number of votes cast "FOR" up to the
total number of persons to be elected as Trustees at the Meeting shall be
elected. There is no cumulative voting with respect to the election of Trustees.
 
  THE BOARD OF TRUSTEES OF THE FUND RECOMMENDS THAT YOU CAST YOUR VOTE "FOR ALL"
OF THE NOMINEES FOR THE BOARD OF TRUSTEES LISTED IN THE PROXY STATEMENT.
 
  All properly executed proxies received prior to the Meeting will be voted at
the Meeting in accordance with the instructions marked thereon. Proxies received
prior to the Meeting on which no vote is indicated will be voted "FOR" each
proposal as to which they are entitled to be voted. Abstentions and broker
non-votes (i.e., where a nominee such as a broker, holding shares for beneficial
owners, indicates that instructions have not been received from the beneficial
owners, and the nominee does not exercise discretionary authority) are not
treated as votes "FOR" a proposal. With respect to the election of Trustees,
abstentions and broker non-votes are disregarded since only votes "FOR" are
considered in a plurality voting requirement. A majority of the outstanding
Common Shares of the Fund entitled to vote must be present in person or by proxy
to have a quorum for the Fund to conduct business at the Meeting. Abstentions
and broker non-votes will be deemed present for quorum purposes.
 
  Shareholders who execute proxies may revoke them at any time before they are
voted by filing with the Fund a written notice of revocation, by delivering a
duly executed proxy bearing a later date, by recording later-dated voting
instructions via the internet or automated telephone, or by attending the
Meeting and voting in person.
 
  The Fund knows of no business other than the election of Trustees that will be
presented for consideration at the Meeting. If any other matters are properly
presented, it is the intention of the persons named on the enclosed proxy to
vote proxies in accordance with their best judgment. In the event a quorum is
present at the Meeting but sufficient votes to approve any of the proposals are
not received, proxies (including abstentions and broker non-votes) would be
voted in favor of one or more adjournments of the Meeting to permit further
solicitation of proxies, provided they determine that such an adjournment and
additional solicitation is reasonable and in the interest of shareholders based
on a consideration of all relevant factors, including the nature of the relevant
proposal, the percentage of votes then cast, the percentage of negative votes
then cast, the nature of the proposed solicitation activities and the nature of
the reasons for such further solicitation.
 
                                        2

 
INVESTMENT ADVISER
 
  Van Kampen Asset Management serves as investment adviser to the Fund (the
"Adviser"). The principal business address of the Adviser is 1221 Avenue of the
Americas, New York, New York 10020. The Adviser is a wholly owned subsidiary of
Van Kampen Investments Inc. ("Van Kampen"). Van Kampen is one of the nation's
largest investment management companies, with more than $99 billion in assets
under management or supervision as of May 31, 2005. Van Kampen is a wholly owned
subsidiary of Morgan Stanley.
 
OTHER SERVICE PROVIDERS
 
  The Fund has entered into an administration agreement and a legal services
agreement with Van Kampen. Van Kampen's principal business address is 1221
Avenue of the Americas, New York, New York 10020. The Fund has also entered into
an accounting services agreement with Van Kampen Asset Management.
 
                        PROPOSAL 1: ELECTION OF TRUSTEES
 
NOMINATION OF TRUSTEES
 
  Two Class I Trustees are to be elected at the Meeting, each to serve until the
later of the Fund's Annual Meeting of Shareholders in 2008 or until a successor
has been duly elected and qualified. Holders of Common Shares will vote with
respect to two Class I Trustees: David C. Arch and Howard J Kerr. It is the
intention of the persons named in the enclosed proxy to vote the Common Shares
represented by them for the election of the respective nominees listed unless
the proxy is marked otherwise.
 
  As in the past, only one class of trustees is being submitted to shareholders
of the Fund for election at the Meeting. The Declaration of Trust of the Fund
provides that the Board of Trustees shall consist of Trustees divided into three
classes, the classes to be as nearly equal in number as possible. The Trustees
of only one class are elected at each annual meeting so that the regular term of
only one class of Trustees will expire annually and any particular Trustee
stands for election only once in each three-year period. This type of
classification may prevent replacement of a majority of Trustees of the Fund for
up to a two-year period. The foregoing is subject to the provisions of the
Investment Company Act of 1940, as amended (the "1940 Act"), Massachusetts state
law, the Fund's Declaration of Trust and the Fund's Bylaws.
 
                                        3

 
      INFORMATION REGARDING TRUSTEES AND NOMINEES FOR ELECTION AS TRUSTEE
 
  The business and affairs of the Fund are managed under the direction of the
Board of Trustees. The tables below list the incumbent Trustees and nominees for
Trustee, their principal occupations during the last five years, other
directorships held by them and their affiliations, if any, with the Adviser, Van
Kampen Funds Inc., Van Kampen Advisors Inc., Van Kampen Exchange Corp. and Van
Kampen Investor Services, Inc. The term "Fund Complex" includes each of the
investment companies advised by the Adviser as of the date of this Proxy
Statement. Trustees of the Fund generally serve three year terms or until their
successors are duly elected and qualified. All nominees have consented to being
named in this Proxy Statement and have agreed to serve if elected.
 
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
OF TRUSTEE                     FUNDS       SERVED    DURING PAST 5 YEARS                          BY TRUSTEE
                                                                                     
David C. Arch(1) (59)       Trustee       Trustee    Chairman and Chief Executive Officer of          82
Blistex Inc.                             since 1998  Blistex Inc., a consumer health care
1800 Swift Drive                                     products manufacturer. Director of the
Oak Brook, IL 60523                                  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.
 

 
NAME, AGE AND ADDRESS       OTHER DIRECTORSHIPS
OF TRUSTEE                  HELD BY TRUSTEE
                         
David C. Arch(1) (59)       Trustee/Director/Managing
Blistex Inc.                General Partner of funds in
1800 Swift Drive            the Fund Complex.
Oak Brook, IL 60523

 
                                        4



                                                                                                  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
OF TRUSTEE                     FUNDS       SERVED    DURING PAST 5 YEARS                          BY TRUSTEE
                                                                                     
Rod Dammeyer(2) (64)        Trustee       Trustee    President of CAC, LLC., a private company        82
CAC, L.L.C.                              since 1998  offering capital investment and management
4350 LaJolla Village Drive                           advisory services. Prior to February 2001,
Suite 980                                            Vice Chairman and Director of Anixter
San Diego, CA 92122-6223                             International, Inc., a global distributor
                                                     of wire, cable and communications
                                                     connectivity products. Prior to July 2000,
                                                     Managing Partner of Equity Group Corporate
                                                     Investment (EGI), a company that makes
                                                     private investments in other companies.
 

 
NAME, AGE AND ADDRESS       OTHER DIRECTORSHIPS
OF TRUSTEE                  HELD BY TRUSTEE
                         
Rod Dammeyer(2) (64)        Trustee/Director/Managing
CAC, L.L.C.                 General Partner of funds in
4350 LaJolla Village Drive  the Fund Complex. Director
Suite 980                   of Stericycle, Inc., Ventana
San Diego, CA 92122-6223    Medical Systems, Inc., and
                            GATX Corporation and Trustee
                            of The Scripps Research
                            Institute. Prior to January
                            2005, Director of the
                            University of Chicago
                            Hospitals and Health
                            Systems. Prior to April
                            2004, Director of
                            TheraSense, Inc. Prior to
                            January 2004, Director of
                            TeleTech Holdings Inc. 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).

 
                                        5



                                                                                                  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
OF TRUSTEE                     FUNDS       SERVED    DURING PAST 5 YEARS                          BY TRUSTEE
                                                                                     

Howard J Kerr(1) (69)       Trustee       Trustee    Prior to 1998, President and Chief               82
736 North Western Avenue                 since 1998  Executive Officer of Pocklington
P.O. Box 317                                         Corporation, Inc., an investment holding
Lake Forest, IL 60045                                company. Director of the Marrow
                                                     Foundation.

Hugo F. Sonnenschein(3)     Trustee       Trustee    President Emeritus and Honorary Trustee of       82
(64)                                     since 1998  the University of Chicago and the Adam
1126 E. 59th Street                                  Smith Distinguished Service Professor in
Chicago, IL 60637                                    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.
 

 
NAME, AGE AND ADDRESS       OTHER DIRECTORSHIPS
OF TRUSTEE                  HELD BY TRUSTEE
                         

Howard J Kerr(1) (69)       Trustee/Director/Managing
736 North Western Avenue    General Partner of funds in
P.O. Box 317                the Fund Complex. Director
Lake Forest, IL 60045       of the Lake Forest Bank &
                            Trust.

Hugo F. Sonnenschein(3)     Trustee/Director/Managing
(64)                        General Partner of funds in
1126 E. 59th Street         the Fund Complex. Director
Chicago, IL 60637           of Winston Laboratories,
                            Inc.

 
                                        6

 
INTERESTED 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
OF TRUSTEE                      FUND        SERVED    DURING PAST 5 YEARS                                           BY TRUSTEE
                                                                                                        

Richard F. Powers, III*(3)   Trustee       Trustee    Advisory Director of Morgan Stanley. Prior to December 2002,         82
(59)                                      since 1999  Chairman, Director, President, Chief Executive Officer and
1221 Avenue of the Americas                           Managing Director of Van Kampen Investments and its
New York, NY 10020                                    investment advisory, distribution and other subsidiaries.
                                                      Prior to December 2002, President and Chief Executive
                                                      Officer of funds in the Fund Complex. Prior to May 1998,
                                                      Executive Vice President and Director of Marketing at Morgan
                                                      Stanley and Director of Dean Witter, Discover & Co. and Dean
                                                      Witter Realty. Prior to 1996, Director of Dean Witter
                                                      Reynolds Inc.

Wayne W. Whalen*(2) (65)     Trustee       Trustee    Partner in the law firm of Skadden, Arps, Slate, Meagher &           82
333 West Wacker Drive                     since 1998  Flom LLP, legal counsel to certain funds in the Fund
Chicago, IL 60606                                     Complex.
 

 
NAME, AGE AND ADDRESS        OTHER DIRECTORSHIPS
OF TRUSTEE                   HELD BY TRUSTEE
                          

Richard F. Powers, III*(3)   Trustee/Director/
(59)                         Managing General
1221 Avenue of the Americas  Partner of funds in
New York, NY 10020           the Fund Complex.

Wayne W. Whalen*(2) (65)     Trustee/Director/
333 West Wacker Drive        Managing General
Chicago, IL 60606            Partner of funds in
                             the Fund Complex.
                             Director of the
                             Abraham Lincoln
                             Presidential
                             Foundation.

 
---------------
(1) Designated as a Class I Trustee.
 
(2) Designated as a Class II Trustee.
 
(3) Designated as a Class III Trustee.
 
* Mr. Powers is an interested person of funds in the Fund Complex and the
  Adviser by reason of his affiliations with Morgan Stanley or its affiliates.
  Mr. Whalen is an interested person of 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.
 
                                        7

 
REMUNERATION OF TRUSTEES
 
  The compensation of Trustees and executive officers who are affiliated persons
(as defined in 1940 Act) of the Adviser or Van Kampen is paid by the respective
affiliated entity. The funds in the Fund Complex, including the Fund, pay the
non-affiliated Trustees an annual retainer and meeting fees.
 
  Each fund in the Fund Complex (except the Van Kampen Exchange Fund) provides a
deferred compensation plan to its non-affiliated Trustees that allows such
Trustees to defer receipt of compensation and earn a return on such deferred
amounts based upon the return of the common shares of the funds in the Fund
Complex as selected by the respective non-affiliated Trustees. Each fund in the
Fund Complex (except the Van Kampen Exchange Fund) also provides a retirement
plan to its non-affiliated Trustees that provides non-affiliated Trustees with
compensation after retirement, provided that certain eligibility requirements
are met as more fully described below.
 
  Each non-affiliated Trustee generally can elect to defer receipt of all or a
portion of the compensation earned by such non-affiliated Trustee until
retirement. Amounts deferred are retained by the respective fund and earn a rate
of return determined by reference to the return on the common shares of such
fund or other funds in the Fund Complex as selected by the respective
non-affiliated Trustee, with the same economic effect as if such non-affiliated
Trustee had invested in one or more funds in the Fund Complex, including the
Funds. To the extent permitted by the 1940 Act, the Fund may invest in
securities of those funds selected by the non-affiliated Trustees in order to
match the deferred compensation obligation. The deferred compensation plan is
not funded and obligations thereunder represent general unsecured claims against
the general assets of the Fund.
 
  The Fund has adopted a retirement plan. Under the retirement plan, a
non-affiliated Trustee who is receiving Trustee's compensation from the Fund
prior to such non-affiliated Trustee's retirement, has at least 10 years of
service (including years of service prior to adoption of the retirement plan)
for the Fund and retires at or after attaining the age of 60, is eligible to
receive a retirement benefit each year for ten years following such Trustee's
retirement from the Fund. Non-affiliated Trustees retiring prior to the age of
60 or with fewer than 10 years but more than 5 years of service may receive
reduced retirement benefits from the Fund. Each Trustee has served as a member
of each Fund's Board of Trustees since the year of such Trustee's appointment or
election as set forth in the "Information Regarding Trustees and Nominees for
Election as Trustee" section of this Proxy Statement.
 
  Additional information regarding compensation and benefits for Trustees is set
forth below. As indicated in the notes accompanying the table, the amounts
relate
 
                                        8

 
to either the Fund's most recently completed fiscal year ended July 31, 2004 or
the Fund Complex's most recently completed calendar year ended December 31,
2004.
 
                               COMPENSATION TABLE
 


                                                                  FUND COMPLEX
                                                ------------------------------------------------
                                                   AGGREGATE
                                                   PENSION OR                          TOTAL
                                                   RETIREMENT        AGGREGATE     COMPENSATION
                                  AGGREGATE         BENEFITS         ESTIMATED        BEFORE
                                 COMPENSATION       ACCRUED           ANNUAL       DEFERRAL FROM
                                   FROM THE        AS PART OF      BENEFITS UPON       FUND
            NAME(1)                FUND(2)      FUND EXPENSES(3)   RETIREMENT(4)    COMPLEX(5)
            -------              ------------   ----------------   -------------   -------------
                                                                       
INDEPENDENT TRUSTEES
David C. Arch..................    $10,327          $ 35,277         $147,500        $192,530
Rod Dammeyer...................     10,127            63,782          147,500         208,000
Howard J Kerr..................     10,327           140,743          146,250         208,000
Hugo F. Sonnenschein...........     10,327            64,476          147,500         208,000
INTERESTED TRUSTEE
Wayne W. Whalen................     10,327            72,001          147,500         208,000

 
---------------
(1) Trustees not eligible for compensation and retirement benefits are not
    included in the Compensation Table. Theodore A. Myers retired from the Board
    of Trustees of the Fund and other funds in the Fund Complex as of December
    31, 2003.
 
(2) The amounts shown in this column are the aggregate compensation payable by
    the Fund for its fiscal year ended in July 31, 2004 before deferral by the
    Trustees under the deferred compensation plan. The following Trustees
    deferred compensation from the Fund during the fiscal year ended July 31,
    2004: Mr. Dammeyer, $10,127; Mr. Sonnenschein, $10,327; and Mr. Whalen,
    $10,327. The cumulative deferred compensation (including interest) accrued
    with respect to each Trustee, including former Trustees, from the Fund as of
    the Fund's fiscal year ended July 31, 2004 is as follows: Mr. Dammeyer,
    $99,762; Mr. Kerr, $9,545; Mr. Sonnenschein, $94,454; and Mr. Whalen,
    $103,248.
 
(3) The amounts shown in this column represent the sum of the estimated pension
    or retirement benefit accruals expected to be accrued by the operating funds
    in the Fund Complex for their respective fiscal years ended in 2004. The
    retirement plan is described above the compensation table.
 
(4) For each Trustee, the amounts shown in this column represent the sum of the
    estimated annual benefits upon retirement payable per year by the current
    operating funds in the Fund Complex for each year of the 10-year period
    commencing in the year of such Trustee's anticipated retirement. The
    retirement plan is described above the compensation table.
 
(5) The amounts shown in this column are accumulated from the aggregate
    compensation of the operating investment companies in the Fund Complex for
    the calendar year ended December 31, 2004 before deferral by the Trustees
    under the deferred compensation plan. Because the funds in the Fund Complex
    have different fiscal year ends, the amounts shown in this column are
    presented on a calendar year basis.
 
BOARD COMMITTEES AND MEETINGS
 
  The Fund's Board of Trustees has one standing committee (an audit and
governance committee). This committee is comprised solely of "Independent
Trustees", which is defined for purposes herein as trustees who: (1) are not
"interested persons" of the Fund as defined by the 1940 Act and (2) are
"independent" of the
 
                                        9

 
Fund as defined by the New York Stock Exchange, American Stock Exchange and
Chicago Stock Exchange listing standards.
 
  The Board's audit committee consists of Messrs. Arch, Dammeyer, Kerr and
Sonnenschein. In addition to being Independent Trustees as defined above, each
of these Trustees also meets the additional independence requirements for audit
committee members as defined by the New York Stock Exchange, American Stock
Exchange and Chicago Stock Exchange listing standards. The audit committee makes
recommendations to the Board of Trustees concerning the selection of the Fund's
independent public auditors, reviews with such auditors the scope and results of
the Fund's annual audit and considers any comments which the auditors may have
regarding the Fund's financial statements, books of account or internal
controls. The Board of Trustees has adopted a formal written charter for the
audit committee which sets forth the audit committee's responsibilities. The
audit committee has reviewed and discussed the financial statements of the Fund
with management as well as with the independent auditors of the Fund, and
discussed with the independent auditors the matters required to be discussed
under the Statement of Auditing Standards No. 61. The audit committee has
received the written disclosures and the letter from the independent auditors
required under Independence Standards Board Standard No. 1 and has discussed
with the independent auditors their independence. Based on this review, the
audit committee recommended to the Board of Trustees of the Fund that the Fund's
audited financial statements be included in the Fund's annual report to
shareholders for the most recent fiscal year for filing with the Securities and
Exchange Commission ("SEC").
 
  In accordance with proxy rules promulgated by the SEC, a fund's audit
committee charter is required to be filed at least once every three years as an
exhibit to a fund's proxy statement. The audit committee charter for the Fund
was attached as Annex A to the Fund's 2004 Proxy Statement.
 
  The Board's governance committee consists of Messrs. Arch, Dammeyer, Kerr and
Sonnenschein. In addition to being Independent Trustees as defined above, each
of these Trustees also meets the additional independence requirements for
nominating committee members as defined by the New York Stock Exchange, American
Stock Exchange and Chicago Stock Exchange listing standards. The governance
committee identifies individuals qualified to serve as Independent Trustees on
the Board and on committees of the Board, advises the Board with respect to
Board composition, procedures and committees, develops and recommends to the
Board a set of corporate governance principles applicable to the respective
Fund, monitors corporate governance matters and makes recommendations to the
Board, and acts as the administrative committee with respect to Board policies
and procedures, committee policies and procedures and codes of ethics. The
Independent Trustees of the Fund select and nominate any other nominee
 
                                        10

 
Independent Trustees for the respective Fund. While the Independent Trustees of
the Fund expect to be able to continue to identify from their own resources an
ample number of qualified candidates for the Board of Trustees as they deem
appropriate, they will consider nominations from shareholders to the Board.
Nominations from shareholders should be in writing and sent to the Independent
Trustees as described below.
 
  In accordance with proxy rules promulgated by the SEC, a fund's nominating
committee charter is required to be filed at least once every three years as an
exhibit to a fund's proxy statement. The governance committee charter for the
Fund, which includes the Fund's nominating policies, was attached as Annex B to
the Fund's 2004 Proxy Statement.
 
  During the fiscal year ended July 31, 2004, the Board of Trustees of the Fund
held 14 meetings. During the Fund's last fiscal year, the audit committee held 6
meetings and the governance committee held 1 meeting (the Fund's audit committee
and governance committee were combined into one committee during the Fund's last
fiscal year). During the last fiscal year, each of the Trustees of the Fund
during the period such Trustee served as a Trustee attended at least 75% of the
meetings of the Board of Trustees and all committee meetings thereof of which
such Trustee was a member.
 
SHAREHOLDER COMMUNICATIONS
 
  Shareholders may send communications to the Fund's Board of Trustees.
Shareholders should send communications intended for the Board by addressing the
communication directly to the Board (or individual Board members) and/or
otherwise clearly indicating in the salutation that the communication is for the
Board (or individual Board members) and by sending the communication to either
the Fund's office or directly to such Board member(s) at the address specified
for such Trustee above. Other shareholder communications received by the Fund
not directly addressed and sent to the Board will be reviewed and generally
responded to by management, and will be forwarded to the Board only at
management's discretion based on the matters contained therein.
 
                                        11

 
                               OTHER INFORMATION
 
EXECUTIVE OFFICERS OF THE FUND
 
  The following information relates to the executive officers of the Fund who
are not Trustee nominees. Each officer also serves in the same capacity for all
or a number of the other investment companies advised by the Adviser as of the
date of this Proxy Statement. The officers of the Fund are appointed annually by
the Trustees and serve for one year or until their respective successors are
chosen and qualified. The Fund's officers receive no compensation from the Fund
but may also be officers of the Adviser or officers of affiliates of the Adviser
and receive compensation in such capacities.
 


                                                   TERM OF
                                                  OFFICE AND
                                 POSITION(S)      LENGTH OF
NAME, AGE AND                     HELD WITH          TIME     PRINCIPAL OCCUPATION(S)
ADDRESS OF OFFICER                  FUNDS           SERVED    DURING PAST 5 YEARS
                                                     
Mitchell M. Merin (51)        President            Officer    President of funds in the Fund Complex. Chairman, President,
1221 Avenue of the Americas                       since 2002  Chief Executive Officer and Director of the Adviser and Van
New York, NY 10020                                            Kampen Advisors Inc. since December 2002. Chairman,
                                                              President and Chief Executive Officer of Van Kampen
                                                              Investments since December 2002. Director of Van Kampen
                                                              Investments since December 1999. Chairman and Director of
                                                              Van Kampen Funds Inc. since December 2002. President,
                                                              Director and Chief Operating Officer of Morgan Stanley
                                                              Investment Management since December 1998. President and
                                                              Director since April 1997 and Chief Executive Officer since
                                                              June 1998 of Morgan Stanley Investment Advisors Inc. and
                                                              Morgan Stanley Services Company Inc. Chairman, Chief
                                                              Executive Officer and Director of Morgan Stanley
                                                              Distributors Inc. since June 1998. Chairman since June 1998,
                                                              and Director since January 1998 of Morgan Stanley Trust.
                                                              Director of various Morgan Stanley subsidiaries. President
                                                              of the Morgan Stanley Funds since May 1999. Previously Chief
                                                              Executive Officer of Van Kampen Funds Inc. from December
                                                              2002 to July 2003, Chief Strategic Officer of Morgan Stanley
                                                              Investment Advisors Inc. and Morgan Stanley Services Company
                                                              Inc. and Executive Vice President of Morgan Stanley
                                                              Distributors Inc. from April 1997 to June 1998. Chief
                                                              Executive Officer from September 2002 to April 2003 and Vice
                                                              President from May 1997 to April 1999 of the Morgan Stanley
                                                              Funds.

 
                                        12

 


                                                   TERM OF
                                                  OFFICE AND
                                 POSITION(S)      LENGTH OF
NAME, AGE AND                     HELD WITH          TIME     PRINCIPAL OCCUPATION(S)
ADDRESS OF OFFICER                  FUNDS           SERVED    DURING PAST 5 YEARS
                                                     

Ronald E. Robison (66)        Executive Vice      Officer     Executive Vice President and Principal Executive Officer of
1221 Avenue of the Americas   President and       since 2003  funds in the Fund Complex. Chief Executive Officer and
New York, NY 10020            Principal                       Chairman of Van Kampen Investor Services. Managing Director
                              Executive Officer               of Morgan Stanley. Chief Administrative Officer, Managing
                                                              Director and Director of Morgan Stanley Investment Advisors
                                                              Inc., Morgan Stanley Services Company Inc. and Managing
                                                              Director of Morgan Stanley Distributors, 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 and Managing Director of Morgan Stanley Investment
                                                              Management Inc.

Joseph J. McAlinden (62)      Executive Vice      Officer     Managing Director and Chief Investment Officer of Morgan
1221 Avenue of the Americas   President and       since 2002  Stanley Investment Advisors Inc., Morgan Stanley Investment
New York, NY 10020            Chief Investment                Management Inc. and Morgan Stanley Investments LP and
                              Officer                         Director of Morgan Stanley Trust for over 5 years. Executive
                                                              Vice President and Chief Investment Officer of funds in the
                                                              Fund Complex. Managing Director and Chief Investment Officer
                                                              of Van Kampen Investments, the Adviser and Van Kampen
                                                              Advisors Inc. since December 2002.

Howard Tiffen (56)            Vice President      Officer     Managing Director of the Adviser and Van Kampen Advisors
1 Parkview Plaza                                  since 2000  Inc. Vice President of the senior loan funds advised by the
Oakbrook Terrace, IL 60181                                    Adviser. Prior to 1999, senior portfolio manager for Pilgrim
                                                              Investments. Associate of and a member of the Economic Club
                                                              of Chicago.

Amy R. Doberman (43)          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 Advisers 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 as of 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 Yu (38)     Vice President and  Officer     Executive Director of Morgan Stanley Investment Management.
1221 Avenue of the Americas   Secretary           since 2003  Vice President and Secretary of funds in the Fund Complex.
New York, NY 10020

 
                                        13

 


                                                   TERM OF
                                                  OFFICE AND
                                 POSITION(S)      LENGTH OF
NAME, AGE AND                     HELD WITH          TIME     PRINCIPAL OCCUPATION(S)
ADDRESS OF OFFICER                  FUNDS           SERVED    DURING PAST 5 YEARS
                                                     

John L. Sullivan (49)         Chief Compliance    Officer     Chief Compliance Officer of funds in the Fund Complex since
1 Parkview Plaza              Officer             since 1989  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. Head of Fund
                                                              Accounting for Morgan Stanley Investment Management. Prior
                                                              to December 2002, Executive Director of Van Kampen
                                                              Investments, the Adviser and Van Kampen Advisors Inc.

James W. Garrett (36)         Chief Financial     Officer     Executive Director of Morgan Stanley Investment Management.
1221 Avenue of the Americas   Officer and         since 2005  Chief Financial Officer and Treasurer of Morgan Stanley
New York, NY 10020            Treasurer                       Institutional Funds since 2002 and of funds in the Fund
                                                              Complex since 2005.

 
                                        14

 
SHAREHOLDER INFORMATION
 
  Excluding deferred compensation balances as described in the Compensation
Table, as of June 6, 2005, each Trustee beneficially owned equity securities of
the Fund and other funds in the Fund Complex overseen by the Trustees in the
dollar range amounts as specified below.
 
                   TRUSTEE BENEFICIAL OWNERSHIP OF SECURITIES
 
INDEPENDENT TRUSTEES
 


                                                 TRUSTEE
                               --------------------------------------------
                                 ARCH     DAMMEYER    KERR     SONNENSCHEIN
                                 ----     --------    ----     ------------
                                                   
Dollar range of equity
  securities in the Fund.....  None       None       None      $1-$10,000
Aggregate dollar range of
  equity securities in all
  registered investment
  companies overseen by
  Trustee in Fund Complex....  $50,001-   over       $1-       $10,001-
                               $100,000   $100,000   $10,000   $50,000

 
INTERESTED TRUSTEES
 


                                                  TRUSTEE
                                            --------------------
                                            POWERS      WHALEN
                                            ------      ------
                                                
Dollar range of equity securities in the
  Fund....................................  None      $1-$10,000
Aggregate dollar range of equity
  securities in all registered investment
  companies overseen by Trustee in Fund
  Complex.................................  over      over
                                            $100,000  $100,000

 
  Including deferred compensation balances as described in the Compensation
Table, as of June 6, 2005, each Trustee owned the dollar ranges of amounts of
the Fund and other funds in the Fund Complex as specified below.
 
                                        15

 
             TRUSTEE BENEFICIAL OWNERSHIP AND DEFERRED COMPENSATION
 
INDEPENDENT TRUSTEES
 


                                                 TRUSTEE
                              ----------------------------------------------
                                ARCH      DAMMEYER     KERR     SONNENSCHEIN
                                ----      --------     ----     ------------
                                                    
Dollar range of equity
  securities and deferred
  compensation in the
  Fund......................  None        None       over       over
                                                     $100,000    $100,000
Aggregate dollar range of
  equity securities and
  deferred compensation in
  all registered investment
  companies overseen by
  Trustee in Fund Complex...  $50,001-    over       over       over
                              $100,000    $100,000   $100,000    $100,000

 
INTERESTED TRUSTEES
 


                                                   TRUSTEE
                                             -------------------
                                              POWERS     WHALEN
                                              ------     ------
                                                  
Dollar range of equity securities and
  deferred compensation in the Fund........  None       over
                                                        $100,000
Aggregate dollar range of equity securities
  and deferred compensation in all
  registered investment companies overseen
  by Trustee in Fund Complex...............  over       over
                                             $100,000   $100,000

 
  As of June 6, 2005, to the knowledge of the Fund, no shareholder owned
beneficially more than 5% of a class of the Fund's outstanding Common Shares.
 
  As of June 6, 2005, the following Trustees beneficially owned Common Shares of
the Fund, in the amounts shown: Mr. Sonnenschein, 500 Common Shares; and Mr.
Whalen, 500 Common Shares.
 
  As of June 6, 2005, the Trustees and executive officers of the Fund
individually and as a group owned less than 1% of the outstanding Common Shares
of the Fund.
 
SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE
 
  Section 30(f) of the 1940 Act and Section 16(a) of the Securities Exchange Act
of 1934, as amended, require the Fund's Trustees, officers, Adviser, affiliated
                                        16

 
persons of the Adviser and persons who own more than 10% of a registered class
of the Fund's equity securities to file forms with the SEC and the New York
Stock Exchange reporting their affiliation with the Fund and reports of
ownership and changes in ownership of shares of the Fund. These persons and
entities are required by SEC regulation to furnish the Fund with copies of all
such forms they file. Based on a review of these forms furnished to the Fund,
the Fund believes that during its last fiscal year, its Trustees, officers, the
Adviser and affiliated persons of the Adviser complied with the applicable
filing requirements.
 
INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
 
  The Board of Trustees of the Fund, including a majority of the Trustees who
are not "interested persons" of the Fund (as defined by the 1940 Act), has
selected Deloitte & Touche LLP ("D&T") as the independent registered public
accounting firm to examine the financial statements for the current fiscal year
of the Fund. The selection of D&T for the current fiscal year was recommended
and approved by the Fund's audit committee and approved by the Fund's Board. The
Fund knows of no direct or indirect financial interest of D&T in the Fund.
 
AUDIT AND OTHER FEES
 
  The Fund and certain "covered entities" were billed the following amounts by
D&T during the Fund's most recent two fiscal years.
 
FISCAL YEAR ENDED JULY 31, 2004
 


                                             NON-AUDIT FEES
                                 --------------------------------------
                        AUDIT     AUDIT-               ALL      TOTAL
ENTITY                  FEES     RELATED      TAX     OTHER   NON-AUDIT    TOTAL
------                  -----    -------      ---     -----   ---------    -----
                                                        
Fund.................  $72,780   $ 21,500(3) $2,300(4)  $0    $ 23,800    $ 96,580
Covered
Entities(1)..........      N/A   $230,000(2) $    0     $0    $230,000    $230,000

 
FISCAL YEAR ENDED JULY 31, 2003
 


                                            NON-AUDIT FEES
                                 -------------------------------------
                        AUDIT    AUDIT-               ALL      TOTAL
ENTITY                  FEES     RELATED     TAX     OTHER   NON-AUDIT    TOTAL
------                  -----    -------     ---     -----   ---------    -----
                                                       
Fund.................  $63,600   $     0    $2,200(4)  $0     $ 2,200    $65,800
Covered
  Entities(1)........      N/A   $95,000(2) $    0     $0     $95,000    $95,000

 
---------------
 
(1) Covered Entities include the Adviser and any entity controlling, controlled
    by or under common control with the Adviser that provides ongoing services
    to the Fund.
 
                                        17

 
(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) Audit-Related Fees represent agreed upon procedures, and letters provided to
    underwriters related to the offering and issuance of preferred shares by the
    Fund.
 
(4) Tax Fees represent tax advice and compliance services provided in connection
    with the review of the Fund's tax return.
 
  The audit committee of the Board has considered whether the provision of non-
audit services performed by D&T to the Fund and "covered entities" is compatible
with maintaining D&T's independence in performing audit services. 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 Fund. 100% of such services were
pre-approved by the audit committee pursuant to the audit committee's
pre-approval policies and procedures. The Board's pre-approval policies and
procedures are included as part of the Board's audit committee charter, which
was filed as Annex A to the Fund's 2004 Proxy Statement.
 
  Representatives of D&T will attend the Meeting, will have the opportunity to
make a statement if they desire to do so and will be available to answer
appropriate questions.
 
EXPENSES
 
  The Fund will bear the expense of preparing, printing and mailing the enclosed
form of proxy, the accompanying Notice and this Proxy Statement and all other
costs, in connection with the solicitation of proxies. The Fund will also
reimburse banks, brokers and others for their reasonable expenses in forwarding
proxy solicitation material to the beneficial owners of the shares of the Fund.
In order to obtain the necessary quorum at the Meeting, additional solicitation
may be made by mail, telephone, telegraph, facsimile or personal interview by
representatives of the Fund, the Adviser or Van Kampen, by the transfer agents
of the Fund, by dealers or their representatives or by Computershare Fund
Services, a solicitation firm that may be engaged to assist in proxy
solicitation at an estimated cost of approximately $2,000.
 
SHAREHOLDER PROPOSALS
 
  To be considered for presentation at a shareholders' meeting, rules
promulgated by the SEC generally require that, among other things, a
shareholder's proposal
 
                                        18

 
must be received at the offices of the Fund a reasonable time before a
solicitation is made. Shareholder proposals intended to be presented at the year
2006 Annual Meeting of Shareholders for the Fund pursuant to Rule 14a-8 under
the Exchange Act of 1934, as amended (the "Exchange Act"), must be received by
the Fund at the Fund's principal executive offices by February 20, 2006. In
order for proposals made outside of Rule 14a-8 under the Exchange Act to be
considered "timely" within the meaning of Rule 14a-4(c) under the Exchange Act,
such proposals must be received by the Fund at the Fund's principal executive
offices not later than May 6, 2006. Timely submission of a proposal does not
necessarily mean that such proposal will be included. Any shareholder who wishes
to submit a proposal for consideration at a meeting of the Fund should send such
proposal to the Fund at 1 Parkview Plaza, PO Box 5555, Oakbrook Terrace,
Illinois 60181-5555.
 
GENERAL
 
  Management of the Fund does not intend to present and does not have reason to
believe that others will present any other items of business at the Meeting.
However, if other matters are properly presented to the Meeting for a vote, the
proxies will be voted upon such matters in accordance with the judgment of the
persons acting under the proxies.
 
  A list of shareholders of the Fund entitled to be present and vote at the
Meeting will be available at the offices of the Fund, 1 Parkview Plaza, Oakbrook
Terrace, Illinois 60181-5555, for inspection by any shareholder during regular
business hours for ten days prior to the date of the Meeting.
 
  Failure of a quorum to be present at the Meeting for the Fund may necessitate
adjournment and may subject the Fund to additional expense.
 
  IF YOU CANNOT BE PRESENT IN PERSON, YOU ARE REQUESTED TO FILL IN, SIGN AND
RETURN THE ENCLOSED PROXY PROMPTLY OR RECORD YOUR VOTING INSTRUCTIONS BY
TELEPHONE OR VIA THE INTERNET. NO POSTAGE IS REQUIRED IF MAILED IN THE UNITED
STATES.
 
                                       Lou Anne McInnis,
                                       Assistant Secretary
 
June 13, 2005
 
                                        19

 
                         [VAN KAMPEN INVESTMENTS LOGO]
 
                                                                      VVR 05

            DETACH HERE IF YOU ARE RETURNING YOUR PROXY CARD BY MAIL      ZVKS32

                                     PROXY
                         VAN KAMPEN SENIOR INCOME TRUST
                         ANNUAL MEETING OF SHAREHOLDERS
               PROXY SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES

The undersigned holder of Common Shares of VAN KAMPEN SENIOR INCOME TRUST, a
Massachusetts business trust (the "FUND"), hereby appoints John L. Sullivan, Lou
Anne McInnis and Elizabeth A. Nelson and each of them or their respective
designees,with full power of substitution and revocation, as proxies to
represent the undersigned at the Annual Meeting of Shareholders to be held at
the offices of Van Kampen Investments Inc., 1 Parkview Plaza, Oakbrook Terrace,
Illinois 60181-5555, on Monday, July 25, 2005 at 9:00 a.m., and any and all
adjournments thereof (the "Meeting"), and thereat to vote all Common Shares
which the undersigned would be entitled to vote, with all powers the undersigned
would possess if personally present, in accordance with the instructions
indicated herein.

If more than one of the proxies, or their substitutes, are present at the
Meeting or any adjournment thereof, they jointly (or, if only one is present and
voting then that one) shall have authority and may exercise all powers granted
hereby. This Proxy, when properly executed, will be voted in accordance with the
instructions marked by the undersigned on the reverse side. IF NO SPECIFICATION
IS MADE, THIS PROXY WILL BE VOTED "FOR" THE PROPOSAL DESCRIBED HEREIN AND IN THE
DISCRETION OF THE PROXIES UPON SUCH OTHER BUSINESS AS MAY PROPERLY COME BEFORE
THE MEETING.

THE UNDERSIGNED HEREBY ACKNOWLEDGES RECEIPT OF THE ACCOMPANYING NOTICE OF
MEETING AND PROXY STATEMENT FOR THE MEETING TO BE HELD ON JULY 25, 2005.

                 PLEASE VOTE, DATE AND SIGN ON REVERSE SIDE AND
                      RETURN PROMPTLY IN ENCLOSED ENVELOPE

HAS YOUR ADDRESS CHANGED?

________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________

VAN KAMPEN
SENIOR INCOME TRUST
C/O EQUISERVE TRUST COMPANY N.A.
P.O. BOX 8694
EDISON, NJ 08818-8694



                YOUR VOTE IS IMPORTANT. PLEASE VOTE IMMEDIATELY.

VOTE-BY-INTERNET                                VOTE-BY-TELEPHONE
                       [GRAPHIC]      OR                              [GRAPHIC]
LOG ON TO THE INTERNET AND GO TO                CALL TOLL-FREE
HTTP://WWW.EPROXYVOTE.COM/VVR                   1-877-PRX-VOTE (1-877-779-8683)

  IF YOU VOTE OVER THE INTERNET OR BY TELEPHONE, PLEASE DO NOT MAIL YOUR CARD.

            DETACH HERE IF YOU ARE RETURNING YOUR PROXY CARD BY MAIL      ZVKS31

    PLEASE MARK
[X] VOTES AS IN                                                             3298
    THIS EXAMPLE


1. Authority to vote for the election          ---------------------------------
   as Class I Trustees, the nominees                        VAN KAMPEN
   named below:                                        SENIOR INCOME TRUST 
                                               ---------------------------------
   CLASS I TRUSTEES: (01) DAVID C. ARCH 
   AND (02) HOWARD J KERR                      2. To transact such other
                                                  business as may properly  
           FOR ALL [ ]       [ ] WITH-            come before the Meeting.
           NOMINEES              HOLD
                                                  Mark box at right if an [ ] 
      FOR ALL                                     address change has been
      EXCEPT  [ ] _______________________         noted on the reverse side of
                  TO WITHHOLD AUTHORITY TO        this card.
                  VOTE SIDE OF THIS CARD          
                  FOR ANY INDIVIDUAL NOMINEE,     THE UNDERSIGNED HEREBY 
                  CHECK "FOR ALL EXCEPT" AND      ACKNOWLEDGES RECEIPT OF THE
                  WRITE THE NOMINEE'S NAME        ACCOMPANYING NOTICE OF 
                  ON THE LINE ABOVE.              MEETING AND PROXY STATEMENT
                                                  FOR THE MEETING TO BE HELD
                                                  ON JULY 25, 2005.

                                                  Please sign this Proxy exactly
                                                  as your name or names appear 
                                                  on the books of the Fund. 
                                                  When signing as attorney,
                                                  trustee, executor, 
                                                  administrator, custodian,
                                                  guardian or corporate
                                                  officer, please give full
                                                  title. If Common Shares are
                                                  held jointly, each holder
                                                  must sign.


Shareholder                            Co-owner
Signature: ____________  Date: ______  Signature: ____________  Date: ______