<DOCUMENT>
<TYPE>EX-99.(99)(B)
<SEQUENCE>27
<FILENAME>c95826a1exv99wx99yxby.txt
<DESCRIPTION>PROXY CARD
<TEXT>
<PAGE>
                                                                   EXHIBIT 99(b)

                      EVERY SHAREHOLDER'S VOTE IS IMPORTANT




                                             YOUR PROXY VOTE IS IMPORTANT!

                                             AND NOW YOU CAN VOTE YOUR PROXY ON
                                             THE PHONE OR THE INTERNET.

                                             IT SAVES MONEY! TELEPHONE,
                                             FACSIMILE AND INTERNET VOTING SAVES
                                             POSTAGE COSTS. SAVINGS WHICH CAN
                                             HELP MINIMIZE EXPENSES.

                                             IT SAVES TIME! TELEPHONE AND
                                             INTERNET VOTING IS INSTANTANEOUS -
                                             24 HOURS A DAY.

                                             IT'S EASY! JUST FOLLOW THESE SIMPLE
                                             STEPS:

                                             1. READ YOUR PROXY STATEMENT AND
                                             HAVE IT AT HAND.

                                             2. CALL TOLL-FREE 1-866-241-6192,
                                             OR GO TO WEBSITE:
                                             HTTPS://VOTE.PROXY-DIRECT.COM

                                             3. FOLLOW THE RECORDED OR ON-SCREEN
                                             DIRECTIONS.

                                             4. DO NOT MAIL YOUR PROXY CARD WHEN
                                             YOU VOTE BY PHONE, OR INTERNET.


                  Please detach at perforation before mailing.


PROXY                                                                      PROXY

                     JOINT SPECIAL MEETING OF SHAREHOLDERS
                        TO BE HELD ON SEPTEMBER 23, 2005

The undersigned holder of shares of beneficial interest, par value $0.01 per
share, of Van Kampen Municipal Opportunity (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 joint special meeting of shareholders to be
held at the offices of Van Kampen Investment Inc., One Parkview Plaza, Oakbrook
Terrace, Illinois 60181-5555 on September 23, 2005 at 10:00 a.m., and any
adjournments thereof (the "Meeting"), and thereat to vote all shares of
beneficial interest 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.

THE UNDERSIGNED HEREBY ACKNOWLEDGES RECEIPT OF THE ACCOMPANYING NOTICE OF JOINT
SPECIAL MEETING OF SHAREHOLDERS AND JOINT PROXY STATEMENT/PROSPECTUS FOR THE
MEETING TO BE HELD ON SEPTEMBER 23, 2005 AT X:XX A.M. THIS PROXY IS SOLICITED ON
BEHALF OF THE FUND'S BOARD OF TRUSTEES.

                                          VOTE VIA THE TELEPHONE: 1-866-241-6192
                                          VOTE VIA THE INTERNET:
                                          HTTPS://VOTE.PROXY-DIRECT.COM
                                          999 9999 9999 999

                                          NOTE: Please sign exactly as your name
                                          appears on this proxy card. All joint
                                          owners should sign. When signing as
                                          executor, administrator, attorney,
                                          trustee or guardian or as custodian
                                          for a minor, please give full title as
                                          such. If a corporation, please sign in
                                          full corporate name and indicate the
                                          signer's office. If a partner, sign in
                                          the partnership name.


                                          --------------------------------------
                                          Signature


                                          --------------------------------------
                                          Signature (if held jointly)


                                          --------------------------------------
                                          Date                       XXX XXXX
<PAGE>
                      EVERY SHAREHOLDER'S VOTE IS IMPORTANT













                        PLEASE SIGN, DATE AND RETURN YOUR
                                   PROXY TODAY



                  Please detach at perforation before mailing.

This proxy, when properly executed, will be voted in accordance with the
instructions marked hereon by the Shareholder signing this proxy. IF NO
SPECIFICATION IS MADE, THIS PROXY WILL BE VOTED "FOR" THE PROPOSALS DESCRIBED
HEREIN AND IN THE DISCRETION OF THE PROXIES UPON SUCH OTHER BUSINESS AS MAY
PROPERLY COME BEFORE THE MEETING AND ANY AND ALL ADJOURNMENTS THEREOF.

         THE BOARD OF TRUSTEES RECOMMENDS THAT YOU VOTE FOR THE PROPOSALS.

         PLEASE MARK VOTES AS IN THIS EXAMPLE: [X]


<TABLE>
<CAPTION>
                                                               FOR   AGAINST   ABSTAIN
<S>                                                            <C>   <C>       <C>
   1.   Not applicable to the Fund.                            [ ]     [ ]       [ ]

   2.   To approve the issuance of additional common shares
        of the Fund in connection with the Agreement and
        Plan of Reorganization between Van Kampen Advantage
        Municipal Income Trust and the Fund; and

   3.   To transact such other business as may properly be
        presented at the Meeting or any adjournment thereof.
</TABLE>

THE BOARD OF TRUSTEES OF THE FUND REQUESTS THAT YOU VOTE YOUR SHARES BY
INDICATING YOUR VOTING INSTRUCTIONS ON THIS PROXY CARD, DATING AND
SIGNING SUCH PROXY CARD AND RETURNING IT IN THE ENVELOPE PROVIDED, WHICH IS
ADDRESSED FOR YOUR CONVENIENCE AND NEEDS NO POSTAGE IF MAILED IN THE UNITED
STATES, OR BY RECORDING YOUR VOTING INSTRUCTIONS BY TELEPHONE OR VIA THE
INTERNET.

                                  XXXXX XXXXXX


</TEXT>
</DOCUMENT>
