INVESTMENT GRADE MUNICIPAL INCOME FUND
DEFS14A, 1996-03-01
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                            SCHEDULE 14A INFORMATION
          PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES
                            AND EXCHANGE ACT OF 1934
                               (AMENDMENT NO.   )

Filed by the Registrant  /X/
Filed by a Party other than the Registrant  / /

Check appropriate box:
/ / Preliminary Proxy Statement
/ / Confidential,  for  Use  of  the  Commission  Only  (as  permitted  by  Rule
    14a-6(e)(2))
/X/ Definitive Proxy Statement
/X/ Definitive Additional Materials
/ /Soliciting Material Pursuant to Section 240.14a-11(c) or Section 240.14a-12

                  INVESTMENT GRADE MUNICIPAL INCOME FUND INC.
_____________PAINEWEBBER PREMIER INSURED MUNICIPAL INCOME FUND INC._____________
                (Name of Registrant as Specified In Its Charter)
________________________________________________________________________________
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

/ /$125 per Exchange Act Rules 0-11(c)(1)(ii), 14a-6(i)(1), 14a-6(i)(2) or  Item
   22(a)(2) of Schedule 14A.
/ /$500  per  each  party  to  the controversy  pursuant  to  Exchange  Act Rule
   14a-6(i)(3).
/ /Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

(1) Title of each class of securities to which transaction applies:
________________________________________________________________________________

(2) Aggregate number of securities to which transaction applies:
________________________________________________________________________________

(3) Per unit price or other underlying value of transaction computed pursuant to
    Exchange Act Rule  0-11 (Set forth  the amount  on which the  filing fee  is
    calculated and state how it was determined):
________________________________________________________________________________

(4) Proposed maximum aggregate value of transaction:
________________________________________________________________________________

(5) Total fee paid:
________________________________________________________________________________

/X/ Fee paid previously with preliminary materials.

/ /Check  box if any part of the fee  is offset as provided by Exchange Act Rule
   0-11(a)(2) and identify  the filing  for which  the offsetting  fee was  paid
   previously. Identify the previous filing by registration statement number, or
   the Form or Schedule and the date of its filing.

(1) Amount Previously Paid: $125 per Registrant
________________________________________________________________________________

(2) Form, Schedule or Registration Statement No.: Schedule 14A
________________________________________________________________________________

(3) Filing Party: Above-named Registrants
________________________________________________________________________________

(4) Date Filed: February [  ], 1996

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<PAGE>
                  INVESTMENT GRADE MUNICIPAL INCOME FUND INC.
             PAINEWEBBER PREMIER INSURED MUNICIPAL INCOME FUND INC.
               (DOING BUSINESS AS INSURED MUNICIPAL INCOME FUND)

                          1285 Avenue of the Americas
                            New York, New York 10019

                                                               February 28, 1996
Dear Shareholder:

    Enclosed  is  a proxy  statement  asking you  to  vote in  favor  of several
proposals relating to the management and operation of your Fund.

    Special  meetings  of  Investment  Grade  Municipal  Income  Fund  Inc.  and
PaineWebber  Premier  Insured  Municipal  Income Fund  Inc.  (doing  business as
Insured Municipal Income  Fund) are  being held on  April 11,  1996 to  consider
these proposals and to transact any other business that may properly come before
the meetings. In the past, when we have solicited proxies for your Fund, we have
enclosed  a proxy  statement directed solely  to the shareholders  of your Fund.
This time,  however, shareholders  of  both Funds  are  being asked  to  approve
substantially  the  same proposals,  so  most of  the  information that  must be
included in a  proxy statement for  your Fund needs  to be included  in a  proxy
statement  for the other  Fund as well.  Therefore, in order  to save money, one
proxy statement has been prepared for both Funds. This proxy statement  contains
detailed  information about each of the proposals  relating to your Fund, and we
recommend that  you read  it  carefully. However,  we  have also  attached  some
Questions and Answers that we hope will assist you in evaluating the proposals.

    We  have retained an outside firm  that specializes in proxy solicitation to
assist us with any necessary follow-up. If we have not received your vote as the
meeting date  approaches, you  may  receive a  telephone call  from  Shareholder
Communications  Corporation to ask  for your vote. We  hope that their telephone
call does not inconvenience you.

    Thank you  for  your  attention  to this  matter  and  for  your  continuing
investment in the Funds.

                                          Very truly yours,

                                                         [LOGO]
                                          Margo N. Alexander
                                          PRESIDENT
 Proxy  cards  for  each  of  your Funds  are  enclosed  along  with  the proxy
 statement. Please  vote  your  shares  today by  signing  and  returning  EACH
 enclosed  proxy card  in the postage  prepaid envelope provided.  The Board of
 your Fund recommends that you vote "FOR" each proposal.
<PAGE>
                             QUESTIONS AND ANSWERS

Q: WHAT IS THE PURPOSE OF THIS PROXY SOLICITATION?

A:  The purpose of this proxy is to ask you to vote on two primary issues:

       -to elect ten Board members, and

       -to approve changes to your Fund's fundamental investment restrictions.

    In  addition, shareholders  of PaineWebber Premier  Insured Municipal Income
    Fund Inc. are being asked to approve an amendment to the Fund's Articles  of
    Incorporation  that would  change the  formal name  of the  Fund to "Insured
    Municipal Income Fund Inc." The Fund has been doing business under the  name
    "Insured Municipal Income Fund" since August 1995.

Q: WHY AM I RECEIVING PROXY INFORMATION ON A FUND THAT I DO NOT OWN?

A:   In the past, when we have solicited proxies for your Fund, we have enclosed
    a proxy statement  directed solely to  the shareholders of  your Fund.  This
    time,  however,  shareholders of  both  of these  Funds  are being  asked to
    approve substantially the same  proposals, so most  of the information  that
    must  be included in a proxy statement for your Fund needs to be included in
    a proxy statement for the  other Fund as well.  Therefore, in order to  save
    money, one proxy statement has been prepared for both Funds.

Q: WHY ARE YOU RECOMMENDING A UNIFIED BOARD FOR THE FUNDS?

A:   A  Corporate Governance  Task Force,  comprised of  a number  of the Funds'
    existing Board  members,  assisted  by  Mitchell  Hutchins  representatives,
    recommended  to the  Fund Boards,  and they  agreed, that  PaineWebber funds
    should be governed by larger Boards  composed of the same members. The  Task
    Force  concluded that this  "unified" Board structure  benefits the Funds by
    creating a diverse, experienced  group of Board  members who understand  the
    operations  of the PaineWebber funds and are  exposed to the wide variety of
    issues that arise from overseeing different types of funds.

Q: WHY HAS THE BOARD BEEN EXPANDED TO TEN MEMBERS?

A:  At the  recommendation of the Corporate  Governance Task Force, each  Fund's
    Board  has been  expanded to  include ten  members, seven  of whom  would be
    independent. As before, two of each Fund's Board members would be elected by
    the holders of the Fund's Auction Preferred Shares, and the remainder of the
    Board members would  be elected by  all of the  Fund's shareholders,  voting
    together.

    The  Task Force considered  issues relating to  the management and long-term
    welfare of the  Funds. It recommended,  and the Boards  agreed to adopt,  an
    expanded  Board as  part of  an overall plan  to coordinate  and enhance the
    efficiency of the governance of the Funds. Expanding the size of the  Boards
    is  intended  to  facilitate  the  increased  use  of  Board  committees for
    different purposes, including the periodic review of the Funds'  contractual
    and   audit  arrangements.   The  Fund   Boards  approved   the  Task  Force
    recommendations and  nominated  ten  individuals drawn  primarily  from  the
    existing Boards.

Q: WILL THE PROPOSED CHANGES RESULT IN HIGHER ADVISORY FEES?

A:   No. The advisory  and administrative fees charged  to each Fund will remain
    the same.
<PAGE>
Q: WHAT  ARE  "FUNDAMENTAL" INVESTMENT  RESTRICTIONS,  AND WHY  ARE  THEY  BEING
    CHANGED?

A:   A Fund's "fundamental" investment  restrictions are limitations placed on a
    Fund's investment  policies  that  can  be changed  only  by  a  shareholder
    vote--EVEN  IF THE  CHANGES ARE MINOR.  The law  requires certain investment
    policies to be  designated as  fundamental. Each  Fund adopted  a number  of
    fundamental  investment restrictions when the Fund  was created, and many of
    those fundamental  restrictions  reflect regulatory,  business  or  industry
    conditions,  practices or requirements that are  no longer in effect. Others
    reflect regulatory requirements that, while still in effect, do not need  to
    be classified as fundamental restrictions.

    The  Funds' Boards believe that fundamental investment restrictions that are
    not legally required should be eliminated and that the remaining fundamental
    restrictions should be modernized and made more uniform. The Boards  believe
    that  the proposed changes to the Funds' fundamental investment restrictions
    will provide greater flexibility. The  proposed changes also will  eliminate
    minor differences in wording that may give rise to unintended differences in
    interpretation among funds in the PaineWebber fund complex.

Q:  DO THE PROPOSED CHANGES TO  FUNDAMENTAL INVESTMENT RESTRICTIONS MEAN THAT MY
    FUND'S INVESTMENT OBJECTIVE IS BEING CHANGED?

A:  No. None of  the proposals would change  the investment objective of  either
    Fund.

Q:  WHAT WILL  BE THE EFFECT  OF THE  PROPOSED CHANGES TO  MY FUND'S FUNDAMENTAL
    RESTRICTIONS?

A:   The  Boards  do  not  believe that  the  proposed  changes  to  fundamental
    investment restrictions will result at this time in a material change in the
    level  of investment risk  for either Fund. However,  the changes will allow
    each Fund greater flexibility to respond to future investment  opportunities
    by  making changes in non-fundamental investment  policies that, at a future
    time, its  Board  considers  desirable.  A  shareholder  vote  will  not  be
    necessary  for  future  changes to  non-fundamental  investment  policies or
    restrictions.

Q: WHAT ARE MY BOARD'S RECOMMENDATIONS?

A:  The Board of each Fund has recommended that you vote "FOR" the nominees  for
    Board member and "FOR" each Proposal that applies to your Fund.
 THE  ATTACHED PROXY STATEMENT CONTAINS MORE DETAILED INFORMATION ABOUT EACH OF
     THE PROPOSALS RELATING TO YOUR FUND. PLEASE READ IT CAREFULLY.
<PAGE>
                  INVESTMENT GRADE MUNICIPAL INCOME FUND INC.
             PAINEWEBBER PREMIER INSURED MUNICIPAL INCOME FUND INC.
               (DOING BUSINESS AS INSURED MUNICIPAL INCOME FUND)
                            ------------------------

                   NOTICE OF SPECIAL MEETINGS OF SHAREHOLDERS
                          TO BE HELD ON APRIL 11, 1996
                           --------------------------

TO THE SHAREHOLDERS:
    Special  meetings of the shareholders of  each of Investment Grade Municipal
Income Fund  Inc. and  PaineWebber Premier  Insured Municipal  Income Fund  Inc.
(doing business as Insured Municipal Income Fund) ("Funds") will be held at 1285
Avenue  of the Americas,  38th Floor, New York,  New York, on  April 11, 1996 at
2:00 p.m., Eastern time, for the purpose of considering the following  proposals
with respect to the Funds:
    (1) For each Fund, for all of its shareholders to elect eight members of its
Board  of  Directors to  serve  until the  next  annual meeting  or  until their
successors are duly elected and qualified;
    (2) For each Fund, for the holders of the Fund's auction preferred shares to
elect two members  of its  Board of  Directors to  serve until  the next  annual
meeting or until their successors are duly elected and qualified;
    (3)  For each Fund, to approve certain changes to its fundamental investment
restrictions;
    (4) For PaineWebber Premier Insured Municipal Income Fund Inc., to amend its
Articles of Incorporation to change its  name to "Insured Municipal Income  Fund
Inc."; and
    (5)  For each  Fund, to  transact such other  business as  may properly come
before the meetings and any adjournments thereof.
    You are entitled to vote at  the meetings, and at any adjournments  thereof,
of  each Fund in which you owned shares at the close of business on February 16,
1996. If you attend the meetings, you may vote your shares in person. IF YOU  DO
NOT  EXPECT TO ATTEND THE MEETINGS, PLEASE  COMPLETE, DATE, SIGN AND RETURN EACH
ENCLOSED PROXY CARD IN THE ENCLOSED POSTAGE PAID ENVELOPE.

                                          By order of the Boards,
                                          Dianne E. O'Donnell
                                          SECRETARY
February 28, 1996
1285 Avenue of the Americas
New York, New York 10019
<PAGE>
                             YOUR VOTE IS IMPORTANT
                        NO MATTER HOW MANY SHARES YOU OWN
     ENCLOSED  YOU WILL FIND  ONE OR MORE  PROXY CARDS RELATING  TO EACH OF THE
 FUNDS FOR  WHICH  YOU  ARE  ENTITLED TO  VOTE.  PLEASE  INDICATE  YOUR  VOTING
 INSTRUCTIONS  ON EACH  OF THE  ENCLOSED PROXY CARDS,  DATE AND  SIGN THEM, AND
 RETURN THEM IN THE  ENVELOPE PROVIDED. IF  YOU SIGN, DATE  AND RETURN A  PROXY
 CARD  BUT GIVE  NO VOTING  INSTRUCTIONS, YOUR SHARES  WILL BE  VOTED "FOR" THE
 NOMINEES FOR DIRECTOR  NAMED IN  THE ATTACHED  PROXY STATEMENT  AND "FOR"  ALL
 OTHER  PROPOSALS  INDICATED ON  THE CARDS.  IN ORDER  TO AVOID  THE ADDITIONAL
 EXPENSE TO  THE FUNDS  OF FURTHER  SOLICITATION, WE  ASK YOUR  COOPERATION  IN
 MAILING  IN YOUR PROXY  CARDS PROMPTLY. UNLESS  PROXY CARDS ARE  SIGNED BY THE
 APPROPRIATE PERSONS AS INDICATED IN THE  INSTRUCTIONS BELOW, THEY WILL NOT  BE
 VOTED.

                      INSTRUCTIONS FOR SIGNING PROXY CARDS

    The  following general rules for signing proxy cards may be of assistance to
you and avoid the time and expense to the Fund involved in validating your  vote
if you fail to sign your proxy card properly.

    1.    Individual Accounts:   Sign  your name  exactly as  it appears  in the
registration on the proxy card.

    2.   Joint Accounts:   Either  party may  sign, but  the name  of the  party
signing  should conform  exactly to  the name shown  in the  registration on the
proxy card.

    3.  All Other Accounts:   The capacity of  the individual signing the  proxy
card should be indicated unless it is reflected in the form of registration. For
example:

<TABLE>
<CAPTION>
                                 REGISTRATION                                               VALID SIGNATURE
- -------------------------------------------------------------------------------  --------------------------------------

<S>                                                                              <C>
Corporate Accounts
    (1) ABC Corp...............................................................  ABC Corp.
                                                                                 John Doe, Treasurer
    (2) ABC Corp...............................................................  John Doe, Treasurer
    (3) ABC Corp. c/o John Doe, Treasurer......................................  John Doe
    (4) ABC Corp. Profit Sharing Plan..........................................  John Doe, Trustee

Partnership Accounts
    (1) The XYZ Partnership....................................................  Jane B. Smith, Partner
    (2) Smith and Jones, Limited Partnership...................................  Jane B. Smith, General Partner

Trust Accounts
    (1) ABC Trust Account......................................................  Jane B. Doe, Trustee
    (2) Jane B. Doe, Trustee u/t/d 12/28/78....................................  Jane B. Doe

Custodial or Estate Accounts
    (1) John B. Smith, Cust. f/b/o John B. Smith, Jr.
        UGMA/ UTMA.............................................................  John B. Smith
    (2) Estate of John B. Smith................................................  John B. Smith, Jr.
                                                                                 Executor
</TABLE>
<PAGE>
                  INVESTMENT GRADE MUNICIPAL INCOME FUND INC.
             PAINEWEBBER PREMIER INSURED MUNICIPAL INCOME FUND INC.
               (DOING BUSINESS AS INSURED MUNICIPAL INCOME FUND)

                          1285 Avenue of the Americas
                            New York, New York 10019

                              --------------------

                                PROXY STATEMENT
         SPECIAL MEETINGS OF SHAREHOLDERS TO BE HELD ON APRIL 11, 1996
                              --------------------

    This  proxy statement is being furnished  to holders of Shares of Investment
Grade Municipal  Income  Fund Inc.  and  PaineWebber Premier  Insured  Municipal
Income  Fund Inc. (doing business as Insured Municipal Income Fund) ("Funds") in
connection with the  solicitation by their  respective Boards of  proxies to  be
used  at special meetings ("Meetings")  of Shareholders to be  held on April 11,
1996 at 2:00  p.m., Eastern time,  or any adjournment  or adjournments  thereof.
This  proxy statement is being first mailed to Shareholders on or about March 4,
1996.

    Each  Fund  is  a  registered,  management  investment  company  under   the
Investment Company Act of 1940, as amended ("1940 Act"), organized as a Maryland
corporation.  Shares  of  the  common stock  ("Common  Stock")  and  the auction
preferred shares  ("APS")  of  each  Fund  are  referred  to,  collectively,  as
"Shares," and the holders of the Shares are "Shareholders." Each Fund's board of
directors  is referred to as a "Board," and the directors are "Board Members." A
listing of the formal name  for each Fund and the  shorthand name for each  Fund
that is used in this proxy statement is set forth below.

<TABLE>
<CAPTION>
                                                                                                                 PROPOSALS
                                                                                                               APPLICABLE TO
                             FUND NAME                                NAME AS USED IN THIS PROXY STATEMENT         FUND
- -------------------------------------------------------------------  ---------------------------------------  ---------------
<S>                                                                  <C>                                      <C>
Investment Grade Municipal Income Fund Inc.........................  Investment Grade Income Fund             1, 2 and 3
PaineWebber Premier Insured Municipal Income Fund Inc..............  Insured Municipal Income Fund            1, 2, 3 and 4
</TABLE>

    Mitchell  Hutchins  Asset  Management  Inc.  ("Mitchell  Hutchins")  is  the
investment adviser  and administrator  for  each Fund.  Mitchell Hutchins  is  a
wholly  owned subsidiary of PaineWebber  Incorporated ("PaineWebber"), which, in
turn, is a wholly owned  subsidiary of Paine Webber  Group Inc. ("PW Group"),  a
publicly  held financial services holding company. PaineWebber has, from time to
time,  acted  as  a  dealer  and  secondary  market-maker  in  connection   with
over-the-counter  secondary market  sales of  each Fund's  Shares. The principal
business address of each of Mitchell Hutchins, PaineWebber and PW Group is  1285
Avenue of the Americas, New York, New York 10019.

                               VOTING INFORMATION

    For  each Fund, the  presence, in person or  by proxy, of  a majority of the
Shares of the Fund outstanding and entitled to vote will constitute a quorum for
the transaction of business at the Meetings.

                                       1
<PAGE>
    In the event that a quorum (including a quorum of a Fund's APS with  respect
to  the election of the two  Board Members who are to  be elected by the APS) is
not present  at a  Meeting,  or if  a  quorum is  present  at that  Meeting  but
sufficient  votes to approve any of the  proposals are not received, the persons
named as proxies may propose one or  more adjournments of the Meeting to  permit
further  solicitation of proxies.  Any adjournment will  require the affirmative
vote of a majority of  those Shares represented at the  Meeting in person or  by
proxy.  The persons  named as  proxies will  vote those  proxies which  they are
entitled to vote  FOR any proposal  in favor  of the adjournment  and will  vote
those proxies required to be voted AGAINST any proposal against the adjournment.
A  Shareholder vote may be taken  on one or more of  the proposals in this proxy
statement prior to any such adjournment  if sufficient votes have been  received
and it is otherwise appropriate.

    Broker  non-votes  are  Shares held  in  street  name for  which  the broker
indicates that instructions have not been received from the beneficial owners or
other persons  entitled to  vote, and  the broker  does not  have  discretionary
voting  authority. Abstentions  and broker non-votes  will be  counted as Shares
present for purposes of determining whether a quorum is present but will not  be
voted  for or against any adjournment  or proposal. Accordingly, abstentions and
broker non-votes  will have  no  effect on  Proposals 1  and  2, for  which  the
required vote is a plurality or majority of the votes cast, but effectively will
be  a  vote against  adjournment and  against Proposals  3 and  4 for  which the
required vote is a percentage of the Shares present or outstanding.

    The individuals named as  proxies on the enclosed  proxy cards will vote  in
accordance  with  your direction  as indicated  thereon, if  your proxy  card is
received  properly  executed  by  you  or  by  your  duly  appointed  agent   or
attorney-in-fact.  If you give no voting instructions and are a holder of Shares
of a Fund's Common Stock, those Shares will be voted FOR the eight nominees  for
the  Board Memberships  for which  the holders of  Common Stock  are entitled to
vote, as  discussed  in  connection with  Proposal  1;  if you  give  no  voting
instructions  and you are a  holder of a Fund's APS,  those Shares will be voted
FOR  all  ten  Board  nominees  named  herein.  Also,  if  you  give  no  voting
instructions,  your Shares of  both Common Stock  and APS will  be voted FOR the
remaining proposals described in this proxy statement and relating to your Fund.
If any nominee for  the Boards should withdraw  or otherwise become  unavailable
for  election,  your Shares  will be  voted in  favor of  such other  nominee or
nominees as management may  recommend. You may revoke  any proxy card by  giving
another  proxy  or by  letter  or telegram  revoking  the initial  proxy.  To be
effective, your revocation  must be received  by the Fund  prior to the  related
Meeting  and must  indicate your  name and account  number. In  addition, if you
attend a Meeting in person you may, if you wish, vote by ballot at that Meeting,
thereby canceling any proxy previously given.

    Information as to the number  of outstanding Shares of  each Fund as of  the
record date, February 16, 1996 ("Record Date"), is set forth below:

<TABLE>
<CAPTION>
                                                                                            NUMBER OF SHARES      NUMBER OF
                                                                                            OF COMMON STOCK       SHARES OF
                                       NAME OF FUND                                           OUTSTANDING      APS OUTSTANDING
- ------------------------------------------------------------------------------------------  ----------------  -----------------
<S>                                                                                         <C>               <C>
Investment Grade Income Fund..............................................................       10,356,667         1,600
Insured Municipal Income Fund.............................................................       20,628,363         3,000
</TABLE>

    Management  does not know of any person who owned beneficially 5% or more of
the Shares  of  either  Fund  as  of January  31,  1996.  To  the  knowledge  of
management,  the executive officers and Board Members  of each Fund, as a group,
owned less than  1% of the  outstanding Shares of  each Fund as  of January  31,
1996.

                                       2
<PAGE>
    COPIES  OF EACH FUND'S MOST RECENT ANNUAL AND SEMI-ANNUAL REPORTS, INCLUDING
FINANCIAL  STATEMENTS,   HAVE  PREVIOUSLY   BEEN  DELIVERED   TO   SHAREHOLDERS.
SHAREHOLDERS  OF  EITHER  FUND MAY  REQUEST  COPIES  OF THAT  FUND'S  ANNUAL AND
SEMI-ANNUAL REPORTS BY  WRITING THE  FUND AT 1285  AVENUE OF  THE AMERICAS,  NEW
YORK, NEW YORK 10019, OR BY CALLING 1-800-852-4750.

    Except  as otherwise  indicated herein, all  of the outstanding  Shares of a
Fund's Common Stock and APS will vote together as a single class with respect to
each matter  proposed  to  be voted  upon  by  the Fund's  Shareholders  at  the
Meetings.  However, as described below in connection with Proposals 1 and 2, the
holders of each Fund's APS,  voting as a separate  class, are entitled to  elect
two  of their  respective Fund's  Board Members.  Each full  Share of  each Fund
outstanding is entitled  to one  vote, and each  fractional Share  of each  Fund
outstanding  is entitled to a  proportionate share of one  vote, with respect to
each matter to be voted upon by the  holders of the Common Stock or APS of  that
Fund.  Information about  the vote  necessary with  respect to  each proposal is
discussed below in connection with the proposal.

                           --------------------------

                  PROPOSALS 1 AND 2--ELECTION OF BOARD MEMBERS

    RELEVANT FUNDS.  Both Funds.

    DISCUSSION.  The Board of each Fund  has acted to expand its membership  and
has  nominated the ten individuals identified  below for election to the related
Fund's Board at its Meeting. Under Proposals 1 and 2, Shareholders of each  Fund
are  being asked to vote on those nominees. For each Fund, holders of the Fund's
APS, voting as a separate class, are entitled to elect two of that Fund's  Board
Members.  Margo N.  Alexander and  Meyer Feldberg, each  of whom  currently is a
member of each Fund's Board and has  been elected by the holders of that  Fund's
APS,  have been nominated by  the current Boards to be  elected to the Boards by
the APS holders under Proposal  2. The other eight  Board Members for each  Fund
will  be elected  by the  holders of  that Fund's  Common Stock  and APS, voting
together as a single class. Those eight nominees are listed below and have  been
nominated  by the current Boards to be elected to the Boards by the Common Stock
and APS holders under  Proposal 1. Pertinent information  about each nominee  is
set  forth  in the  listing below  and in  Exhibits  A and  B. Each  nominee has
indicated a willingness to serve if elected. If elected, each nominee will  hold
office  until  the next  annual  meeting of  Shareholders  or until  his  or her
successor is  duly elected  and qualified,  or until  he or  she resigns  or  is
otherwise removed.

    The  increase in the size of the Boards and the nomination of a single group
of nominees to serve as the Board Members for each Fund reflects an overall plan
to coordinate and enhance the efficiency of  the governance of the Funds and  of
certain  other  investment  companies  that are  part  of  the  PaineWebber fund
complex. This plan was developed by a Corporate Governance Task Force  comprised
of  a number of  current Board Members  who are not  "interested persons" of the
Funds, as defined in the 1940 Act ("independent" Board Members), with the advice
of their counsel, and assisted by representatives of Mitchell Hutchins and  Fund
counsel.  The Corporate Governance Task Force considered various matters related
to the management and long-term welfare of the Funds and made recommendations to
the Boards,  including proposals  concerning  the size  and composition  of  the
Boards,  committee structures,  fees and  related matters.  These proposals, the
substance of which is summarized below,  were adopted by the Boards at  meetings
in November 1995. The Boards acted in February 1996 to establish the size of the
Boards  at  ten, following  the untimely  death of  a member  of several  of the
PaineWebber fund boards, who had

                                       3
<PAGE>
been expected to be a nominee as  an independent Board Member. The nominees  for
independent  Board memberships were selected by the Board of each Fund. With the
exception of the  nominations for  Board membership,  which are  the subject  of
Proposals  1  and 2,  no  Shareholder action  is  required with  respect  to the
Corporate Governance Task Force recommendations.

    Consistent with the recommendations of the Corporate Governance Task  Force,
and  concurrently  with this  proxy  solicitation, shareholders  of  other funds
within  the  PaineWebber  fund  complex  are  also  being  asked  to  elect  the
below-listed nominees to the boards of their funds. However, the election of the
nominees  for the  Board of either  of the  Funds is not  conditioned upon their
election to  the Board  of  the other  Fund  or of  any  other fund  within  the
PaineWebber fund complex.

    The  Boards believe that  coordinated governance through  a unified group of
Board  Members   will  benefit   each  of   the  Funds.   Despite  some   recent
consolidations,  the PaineWebber fund complex has grown substantially in size in
the years since the current Board structures were created. This growth has  been
due  to the creation of new funds intended to serve a wide variety of investment
needs and the  recent acquisition  of the  asset management  business of  Kidder
Peabody  Asset Management, Inc. The  PaineWebber fund complex currently includes
over 60 portfolios  of open-end and  closed-end funds having  a wide variety  of
investment objectives and policies. These include money market funds; bond funds
that  invest  in corporate  and  other bonds  with  varying maturities  and risk
characteristics;  municipal   bond  funds;   balanced  funds   that  invest   in
combinations  of debt and equity securities; growth  funds that invest in a wide
variety of domestic equity securities; and  global funds that invest in debt  or
equity  securities from around the world. The Boards believe that the Funds will
benefit from the experience that each nominee will gain by serving on the Boards
of such a diverse group of funds. Coordinated governance within the  PaineWebber
fund  complex also  will reduce the  possibility that the  separate Boards might
arrive at conflicting decisions regarding  the operations and management of  the
Funds and avoid costs resulting from conflicting decisions.

    The  Boards also believe that the Funds  will benefit from the diversity and
experience of  the  nominees that  would  comprise the  expanded  Boards.  These
nominees  have had distinguished careers  in government, finance, law, marketing
and other areas and will bring a wide range of expertise to the Boards. Seven of
the ten nominees have no affiliation  with PaineWebber or Mitchell Hutchins  and
would  be independent Board Members. Independent  Board Members are charged with
special responsibilities to provide  an independent check  on management and  to
approve  advisory,  distribution and  similar agreements  between the  Funds and
management. They also constitute the members of the Boards' audit committees. In
the course  of their  duties, Board  Members must  review and  understand  large
amounts  of  financial and  technical  material and  must  be willing  to devote
substantial amounts  of time.  Due to  the  demands of  service on  the  Boards,
independent  nominees may need to reject other attractive opportunities. Each of
the independent nominees already serves as  an independent Board Member for  one
or more funds within the PaineWebber fund complex and understands the operations
of the complex.

    The  proposed unified Board structure will  require a greater expenditure of
time by each Board Member. Election of  the ten nominees will permit the  Boards
to  enhance  their supervision  of the  Funds  by increased  use of  a committee
structure. Under the Board structure envisioned by the Corporate Governance Task
Force and adopted by  the Boards, each Board's  audit committee will be  divided
into  two  sub-committees, each  comprised  of independent  Board  Members. Each
sub-committee will  function as  an  audit and  contract review  committee  that
periodically will review the contractual and audit arrangements for Funds having
similar characteristics. The sub-

                                       4
<PAGE>
committee  structure will enable  Board members both  to develop expertise about
particular Funds, while still  benefiting from the  experience and knowledge  of
the full Boards. Other committees may be used in the future, and the Boards will
review  the  sub-committee  structure  from  time  to  time  to  make  necessary
adjustments. It is  anticipated that the  full Boards will  have five  regularly
scheduled meetings per year.

    As recommended by the Corporate Governance Task Force, the compensation paid
to  independent  Board  Members  will  change.  Under  the  new  structure, each
independent Board Member will be paid annual fees of $1,000 (compared to  $1,500
currently) per Fund and will receive an attendance fee of $150 (compared to $250
currently)  for each  Board meeting and  for each committee  meeting (other than
committee meetings held on the same date as a Board meeting). It is  anticipated
that  the chairs of the  two audit and contract  review sub-committees each will
receive additional  annual  compensation  from  the  PaineWebber  funds  in  the
aggregate  amount of $15,000. Interested Board  Members will continue to receive
no compensation from any Fund. Board Members will continue to be reimbursed  for
any  expenses incurred in attending meetings. Pursuant to the recommendations of
the Corporate  Governance Task  Force,  each Board  Member  will be  subject  to
mandatory  retirement at the end of the year in which he or she becomes 72 years
old. The following  table sets  forth information relating  to the  compensation
paid to Board Members during the past fiscal and calendar years:

                               COMPENSATION TABLE

<TABLE>
<CAPTION>
                                                        AMOUNT PAID DURING THE MOST RECENT
                                                          FISCAL YEAR FROM FUND TO BOARD
                                                                     MEMBERS                   TOTAL COMPENSATION PAID TO
                                                       ------------------------------------    BOARD MEMBERS FROM FUND AND
                                                       INVESTMENT GRADE   INSURED MUNICIPAL       FUND COMPLEX FOR THE
INDEPENDENT BOARD MEMBER (1)                              INCOME FUND        INCOME FUND     YEAR ENDED DECEMBER 31, 1995(2)
- -----------------------------------------------------  -----------------  -----------------  -------------------------------
<S>                                                    <C>                <C>                <C>
Richard Q. Armstrong.................................      $   1,250                  0                $     9,000
Richard Burt.........................................      $   1,250                  0                $     7,750
Meyer Feldberg.......................................      $   3,250          $   3,500                $   106,375
George W. Gowen......................................         --                 --                    $    99,750
Frederic V. Malek....................................         --                 --                    $    99,750
Carl W. Schafer......................................         --                 --                    $   118,175
John R. Torell III...................................      $   3,250          $   3,750                $    28,125
William D. White*....................................      $   2,750          $   3,250                $    33,125
</TABLE>

- ----------------------------------
 *  Indicates Board Member who is not standing for reelection.

(1) Board Members who were not independent did not receive compensation from the
    Funds.

(2) No  fund within  the fund  complex has a  bonus, pension,  profit sharing or
    retirement plan.

    The nominees for election as Board Members, their ages, and a description of
their principal occupations are  listed in the table  below. A table  indicating
each nominee's ownership of Fund Shares is attached as Exhibit B.

                                       5
<PAGE>

<TABLE>
<CAPTION>
          NOMINEE; AGE                     BUSINESS EXPERIENCE DURING THE PAST FIVE YEARS; OTHER DIRECTORSHIPS
- ---------------------------------  ------------------------------------------------------------------------------------
<S>                                <C>
Margo N. Alexander;* 48            Mrs.  Alexander is  president, chief  executive officer  and a  director of Mitchell
                                   Hutchins (since January  1995). Mrs. Alexander  is an executive  vice president  and
                                   director  of  PaineWebber.  Mrs.  Alexander  also is  a  director  or  trustee  of 3
                                   investment companies for which Mitchell Hutchins or PaineWebber serves as investment
                                   adviser.
Richard Q. Armstrong; 60           Mr. Armstrong is chairman  and principal of  RQA Enterprises (management  consulting
                                   firm) (since April 1991 and principal occupation since March 1995). Mr. Armstrong is
                                   also  a director  of Hi  Lo Automotive,  Inc. He  was chairman  of the  board, chief
                                   executive officer and co-owner of Adirondack Beverages (producer and distributor  of
                                   soft  drinks and sparkling/still waters) (October 1993-March 1995). He was a partner
                                   of  the  New  England  Consulting  Group  (management  consulting  firm)   (December
                                   1992-September  1993).  He  was managing  director  of LVMH  U.S.  Corporation (U.S.
                                   subsidiary of the  French luxury  goods conglomerate, Louis  Vuitton Moet  Hennessey
                                   Corporation)   (1987-1991)  and  chairman  of   its  wine  and  spirits  subsidiary,
                                   Schieffelin & Somerset  Company (1987-1991).  Mr. Armstrong  also is  a director  or
                                   trustee  of 6 investment companies for which Mitchell Hutchins or PaineWebber serves
                                   as investment adviser.
E. Garrett Bewkes, Jr.;* 69        Mr. Bewkes is a director of,  and a consultant to, PW  Group. Prior to 1988, he  was
                                   chairman  of the board,  president and chief executive  officer of American Bakeries
                                   Company. Mr. Bewkes is also a director of Interstate Bakeries Corporation and  NaPro
                                   Bio-Therapeutics,  Inc. Mr. Bewkes  also is a  director or trustee  of 24 investment
                                   companies for which Mitchell Hutchins or PaineWebber serves as investment adviser.
Richard Burt; 47                   Mr. Burt is chairman of International Equity Partners (international investments and
                                   consulting firm) (since March 1994) and a partner of McKinsey & Company  (management
                                   consulting firm) (since 1991). He is also a director of American Publishing Company.
                                   He  was the chief negotiator  in the Strategic Arms  Reduction Talks with the former
                                   Soviet Union (1989-1991) and the U.S. Ambassador to the Federal Republic of  Germany
                                   (1985-1989).  Mr. Burt also is  a director or trustee  of 7 investment companies for
                                   which Mitchell Hutchins or PaineWebber serves as investment adviser.
</TABLE>

                                       6
<PAGE>
<TABLE>
<CAPTION>
          NOMINEE; AGE                     BUSINESS EXPERIENCE DURING THE PAST FIVE YEARS; OTHER DIRECTORSHIPS
- ---------------------------------  ------------------------------------------------------------------------------------
<S>                                <C>
Mary C. Farrell;* 46               Ms. Farrell is a managing director, senior investment strategist, and member of  the
                                   Investment  Policy Committee of PaineWebber. Ms. Farrell joined PaineWebber in 1982.
                                   She is a member of the Financial Women's Association and Women's Economic Roundtable
                                   and is employed as a regular panelist  on Wall $treet Week with Louis Rukeyser.  She
                                   serves  also on  the Board  of Overseers  of New  York University's  Stern School of
                                   Business.
Meyer Feldberg; 53                 Mr. Feldberg is Dean and Professor of Management of the Graduate School of Business,
                                   Columbia University. Prior to  1989, he was president  of the Illinois Institute  of
                                   Technology.  Dean Feldberg is also a director of AMSCO International Inc., Federated
                                   Department Stores,  Inc.  and  New World  Communications  Group  Incorporated.  Dean
                                   Feldberg also is a director or trustee of 19 investment companies for which Mitchell
                                   Hutchins or PaineWebber serves as investment adviser.
George W. Gowen; 66                Mr.  Gowen is a partner in the law  firm of Dunnington, Bartholow & Miller. Prior to
                                   May 1994, he was partner in the law firm of Fryer, Ross & Gowen. Mr. Gowen is also a
                                   director of Columbia Real Estate Investments, Inc.  Mr. Gowen also is a director  or
                                   trustee of 17 investment companies for which Mitchell Hutchins or PaineWebber serves
                                   as investment adviser.
Frederic V. Malek; 59              Mr. Malek is chairman of Thayer Capital Partners (investment bank) and a co-chairman
                                   and  director  of CB  Commercial  Group Inc.  (real  estate). From  January  1992 to
                                   November 1992, he was campaign manager of Bush-Quayle '92. From 1990 to 1992, he was
                                   vice chairman and, from 1989 to 1990,  he was president of Northwest Airlines  Inc.,
                                   NWA  Inc.  (holding company  of  Northwest Airlines  Inc.)  and Wings  Holdings Inc.
                                   (holding company  of NWA  Inc.). Prior  to 1989,  he was  employed by  the  Marriott
                                   Corporation  (hotels, restaurants, airline catering  and contract feeding), where he
                                   most recently was an executive vice  president and president of Marriott Hotels  and
                                   Resorts.  Mr.  Malek  is  also  a director  of  American  Management  Systems, Inc.,
                                   Automatic Data Processing,  Inc., Avis,  Inc., FPL Group,  Inc., National  Education
                                   Corporation  and Northwest Airlines Inc. Mr. Malek  also is a director or trustee of
                                   17 investment companies for which Mitchell Hutchins or PaineWebber serves as invest-
                                   ment adviser.
</TABLE>

                                       7
<PAGE>
<TABLE>
<CAPTION>
          NOMINEE; AGE                     BUSINESS EXPERIENCE DURING THE PAST FIVE YEARS; OTHER DIRECTORSHIPS
- ---------------------------------  ------------------------------------------------------------------------------------
<S>                                <C>
Carl W. Schafer; 60                Mr.  Schafer  is  president  of  the  Atlantic  Foundation  (charitable   foundation
                                   supporting  mainly oceanographic exploration and research). He also is a director of
                                   Roadway Express, Inc. (trucking), The Guardian Group of Mutual Funds, Evans Systems,
                                   Inc. (a motor fuels,  convenience store and diversified  company), Hidden Lake  Gold
                                   Mines  Ltd. (gold mining),  Electronic Clearing House,  Inc. (financial transactions
                                   processing), Wainoco Oil Corporation and Nutraceutix Inc. (biotechnology). Prior  to
                                   January  1993, Mr. Schafer was chairman of  the Investment Advisory Committee of the
                                   Howard Hughes Medical  Institute. Mr. Schafer  also is  a director or  trustee of  7
                                   investment companies for which Mitchell Hutchins or PaineWebber serves as investment
                                   adviser.
John R. Torell III; 56             Mr. Torell is chairman of Torell Management, Inc. (financial advisory firm), partner
                                   of  Zilkha & Company (merchant banking  and private investment company) and chairman
                                   of Telesphere Corporation (electronic provider of financial information). He is  the
                                   former  chairman  and  chief executive  officer  of Fortune  Bancorp  (1990-1991 and
                                   1990-1994, respectively). He is the  former chairman, president and chief  executive
                                   officer of CalFed, Inc. (savings association) (1988 to 1989) and former president of
                                   Manufacturers Hanover Corp. (bank) (prior to 1988). Mr. Torell is also a director of
                                   American  Home Products  Corp., Volt  Information Sciences  Inc., and  New Colt Inc.
                                   (armament manufacturer). Mr. Torell  also is a director  or trustee of 7  investment
                                   companies for which Mitchell Hutchins or PaineWebber serves as investment adviser.
</TABLE>

- --------------------------
*Indicates  "interested person"  of the  Funds, as defined  by the  1940 Act, by
 reason of his or her position  with Mitchell Hutchins, PaineWebber or PW  Group
 and/or share ownership in PW Group.

    The  Board of Insured Municipal Income Fund  met seven times during its most
recently completed fiscal year.  The Board of Investment  Grade Income Fund  met
six  times during  its most  recently completed fiscal  year. Each  Board has an
audit committee consisting of its independent Board Members (currently,  Richard
Q.  Armstrong, Meyer Feldberg, Richard  Burt, John R. Torell  III and William D.
White). Each of the members attended 75%  or more of Board meetings during  each
Fund's  most recently completed fiscal year, with  the exception of Mr. Burt and
Mr. White with respect to Insured Municipal Income Fund. Each of the members  of
the  audit committee  attended 75% or  more of that  committee's meetings during
each Fund's  most  recently completed  fiscal  year.  The duties  of  the  audit
committee are (a) to review reports prepared by the Fund's independent auditors,
including  reports on the Fund's internal  accounting control procedures; (b) to
review and recommend approval or disapproval of audit and non-audit services and
the fees charged  for such  services; (c) to  evaluate the  independence of  the
independent  auditors  and  to  recommend  whether  to  retain  such independent
auditors for the next fiscal year; and (d) to report to the Board and make  such
recommendations  as  it  deems  necessary.  The  Boards  do  not  have  standing
nominating or compensation committees.  Information concerning Fund officers  is
set forth in Exhibit C.

                                       8
<PAGE>
    REQUIRED  VOTE.   For  each  Fund, and  provided  a quorum  is  present: the
candidates for  the two  Board Memberships  to  be elected  by the  APS  holders
receiving the affirmative vote of a plurality of the votes cast for the election
of  Board Members by APS holders will be elected to those Board Memberships; and
the candidates for  the remaining  Board Memberships  receiving the  affirmative
vote  of a plurality of the votes cast  for the election of Board Members by all
Shareholders will be elected to the remaining Board Memberships.

    EACH  BOARD,  INCLUDING  ITS  INDEPENDENT  BOARD  MEMBERS,  RECOMMENDS  THAT
SHAREHOLDERS VOTE "FOR" EACH OF THE NOMINEES UNDER PROPOSALS 1 AND 2.

                           --------------------------
           PROPOSAL 3-- APPROVAL OF CHANGES TO FUNDAMENTAL INVESTMENT
             RESTRICTIONS AND POLICIES OF EACH FUND

    RELEVANT FUNDS.  Both Funds.

    REASONS  FOR THE PROPOSED  CHANGES.  Pursuant  to the 1940  Act, each of the
Funds has  adopted  certain  fundamental investment  restrictions  and  policies
("fundamental  restrictions"), which are  set forth in  the Fund's prospectus or
statement of  additional  information,  and  which  may  be  changed  only  with
Shareholder approval. Restrictions and policies that a Fund has not specifically
designated  as being fundamental are considered  to be "non-fundamental" and may
be changed by the Fund's Board without Shareholder approval.

    Certain of the fundamental restrictions that  the Funds have adopted in  the
past   reflect  regulatory,  business  or   industry  conditions,  practices  or
requirements that  are  no  longer in  effect.  Other  fundamental  restrictions
reflect  regulatory  requirements  which  remain in  effect  but  which  are not
required to be stated as fundamental, or in some cases even as  non-fundamental,
restrictions.  Also, as new funds have  been created within the PaineWebber fund
complex over a period of  years, substantially similar fundamental  restrictions
often have been phrased in slightly different ways, sometimes resulting in minor
but  unintended differences in  effect or potentially  giving rise to unintended
differences in interpretation.

    Accordingly, the Boards have approved  revisions to their respective  Funds'
fundamental  restrictions in order to simplify,  modernize and make more uniform
within the  PaineWebber  fund complex  those  investment restrictions  that  are
required to be fundamental, and to eliminate those fundamental restrictions that
are  not legally required. Existing fundamental restrictions that are eliminated
because they  are not  required  to be  fundamental  would be  re-classified  as
non-fundamental   restrictions.  Notwithstanding  the   changes  to  the  Funds'
fundamental investment  restrictions  proposed  under  Proposal  3,  the  Funds'
investment  policies would  continue to be  subject to the  guidelines and other
restrictions with which the Funds agreed to comply in connection with the rating
of the APS by Standard & Poor's, a division of The McGraw Hill Companies,  Inc.,
or Moody's Investors Service, Inc.

    The  Boards  believe that  the proposed  changes  to the  Funds' fundamental
restrictions  will  enhance  management's  ability  to  manage  efficiently  and
effectively   the   Funds'  assets   in   changing  regulatory   and  investment
environments. In addition, by reducing to  a minimum those policies that can  be
changed only by Shareholder vote, each Fund will more often be able to avoid the
costs  and delays associated  with a Shareholder meeting  when making changes to
its investment policies that, at a  future time, its Board considers  desirable.
Although  the proposed changes in fundamental  restrictions will allow the Funds
greater investment flexibility to respond to

                                       9
<PAGE>
future investment opportunities, the Boards do not anticipate that the  changes,
individually  or in the aggregate, will result at this time in a material change
in the level of investment risk associated with an investment in any Fund.

    The text and  a summary description  of each proposed  change to the  Funds'
fundamental  restrictions  are set  forth  below. Shareholders  should  refer to
Exhibit FR  to  this  proxy  statement  for the  text  of  the  Funds'  existing
fundamental restrictions.

    The  text below also describes those non-fundamental restrictions that would
be adopted by  the Boards  in conjunction  with the  elimination of  fundamental
restrictions  under Proposal 3. Any  non-fundamental restriction may be modified
or eliminated by the  appropriate Board at any  future date without any  further
approval of Shareholders.

    If the proposed changes are approved by Shareholders of the respective Funds
at the Meeting, the Funds'
statements  of additional information will be  revised to reflect those changes.
This will occur as soon as  practicable following the Meetings. Proposal 3  will
not  result in a  change to either  Fund's investment objective,  even though it
also constitutes a fundamental policy.

    PROPOSED CHANGES.  The  following is the text  and a summary description  of
the  proposed changes to the Funds'  fundamental restrictions, together with the
text of those non-fundamental restrictions  that would be adopted in  connection
with  the elimination of certain of the Funds' current fundamental restrictions.
Also set forth is a restatement of the Funds' fundamental restriction on  senior
securities  and borrowing, which is not being changed. With respect to each Fund
and each  proposed  fundamental  restriction, if  a  percentage  restriction  is
adhered  to at  the time of  an investment  or transaction, a  later increase or
decrease in  percentage resulting  from a  change in  the values  of the  Fund's
portfolio  securities or the amount of its total assets will not be considered a
violation of the fundamental restriction.

    1.  MODIFICATION OF FUNDAMENTAL RESTRICTION ON PORTFOLIO DIVERSIFICATION FOR
    DIVERSIFIED FUNDS.

    PROPOSED TEXT OF FUNDAMENTAL RESTRICTION:

        "The Fund  will not  purchase securities  of  any one  issuer if,  as  a
    result,  more  than 5%  of  the Fund's  total  assets would  be  invested in
    securities of that issuer or the Fund would own or hold more than 10% of the
    outstanding voting securities of that issuer,  except that up to 25% of  the
    Fund's  total assets may be invested  without regard to this limitation, and
    except  that  this  limitation  does  not  apply  to  securities  issued  or
    guaranteed  by the U.S. government, its agencies and instrumentalities or to
    securities issued by other investment companies."

    The following  interpretation  applies  to,  but is  not  a  part  of,  this
fundamental restriction:

        "Each  state  (including  the  District of  Columbia  and  Puerto Rico),
    territory and possession of the  United States, each political  subdivision,
    agency,  instrumentality and authority thereof,  and each multi-state agency
    of which a  state is  a member  is a separate  issuer. When  the assets  and
    revenues  of  an  agency,  authority,  instrumentality  or  other  political
    subdivision are separate  from the government  creating the subdivision  and
    the  security is backed only by the  assets and revenues of the subdivision,
    such subdivision would be  deemed to be the  sole issuer. Similarly, in  the
    case  of an  Industrial Development Bond  or Private Activity  Bond, if that
    bond is backed only by the assets and revenues of the non-governmental user,
    then that non-governmental

                                       10
<PAGE>
    user would  be  deemed to  be  the sole  issuer.  However, if  the  creating
    government  or another entity guarantees a security, then to the extent that
    the value  of all  securities issued  or guaranteed  by that  government  or
    entity  and owned by  the Fund exceeds  10% of the  Fund's total assets, the
    guarantee would be considered  a separate security and  would be treated  as
    issued by that government or entity."

    With  respect to Insured Municipal Income Fund, the foregoing interpretation
includes the following:

        "This restriction does  not limit  the percentage of  the Fund's  assets
    that may be invested in Municipal Obligations insured by any given insurer."

    DISCUSSION:  The Funds are "diversified" investment companies under the 1940
Act   and,  accordingly,   must  have   fundamental  restrictions   or  policies
establishing  the  percentage  limitations   with  respect  to  investments   in
individual  issuers that they  will follow in order  to qualify as "diversified"
for that purpose.  The Funds'  current restrictions are  somewhat more  limiting
than  is necessary in order to qualify  as "diversified" funds. For example, the
Funds' restrictions do not reflect  exceptions for investments in securities  of
other investment companies. The Funds' current restrictions also do not refer to
the  required  limitation  on  holding  more  than  10%  of  an  issuer's voting
securities. The proposed language would  conform to language being proposed  for
use by other funds within the PaineWebber fund complex.

    Proposal  3 would not  change the affirmative  fundamental policy of Insured
Municipal Income Fund,  as stated in  its prospectus, of  normally investing  at
least 80% of its total assets in insured municipal obligations.

    2.  MODIFICATION OF FUNDAMENTAL RESTRICTION ON CONCENTRATION.

    PROPOSED TEXT OF FUNDAMENTAL RESTRICTION:

        "The  Fund  will not  purchase  any security  if,  as a  result  of that
    purchase, 25%  or more  of the  Fund's  total assets  would be  invested  in
    securities of issuers having their principal business activities in the same
    industry, except that this limitation does not apply to securities issued or
    guaranteed  by the U.S. government, its  agencies or instrumentalities or to
    municipal securities."

    DISCUSSION:  The  proposed changes to  the Funds' fundamental  concentration
policy  would conform the language of the Funds' fundamental restriction on this
subject to language being proposed for use by other funds within the PaineWebber
fund complex. The  Boards believe that  conforming the language  in this  manner
will help avoid unintended differences in interpretation or effect.

    3.  MODIFICATION OF FUNDAMENTAL RESTRICTION ON SENIOR SECURITIES AND
    BORROWING (UNCHANGED).

    TEXT   OF  FUNDAMENTAL  RESTRICTION:    No   change  is  proposed  for  this
restriction. The  current  restriction,  which  would  remain  in  effect  under
Proposal 3, is as follows:

        "The  Fund will not  issue senior securities  (including borrowing money
    from banks and  other entities and  through reverse repurchase  agreements),
    except  (a) the Fund  may borrow in  an amount not  in excess of  33 1/3% of
    total assets (including the amount of senior securities issued, but  reduced
    by any liabilities and indebtedness not constituting senior securities), (b)
    the  Fund may  issue preferred stock  having a liquidation  preference in an
    amount which, combined with  the amount of  any liabilities or  indebtedness
    constituting

                                       11
<PAGE>
    senior  securities, is not in excess of 50% of its total assets (computed as
    provided in  clause  (a)  above) and  (c)  the  Fund may  borrow  up  to  an
    additional  5% of its  total assets (not including  the amount borrowed) for
    temporary or emergency purposes."

    DISCUSSION:  As  indicated above, Proposal  3 would make  no change to  this
fundamental restriction.

    4.  MODIFICATION OF FUNDAMENTAL RESTRICTION ON MAKING LOANS.

    PROPOSED TEXT OF FUNDAMENTAL RESTRICTION:

        "The  Fund  will  not  make loans,  except  through  loans  of portfolio
    securities or through repurchase agreements,  provided that for purposes  of
    this   restriction,  the  acquisition  of   bonds,  debentures,  other  debt
    securities or instruments, or participations or other interests therein  and
    investments  in  government obligations,  commercial paper,  certificates of
    deposit, bankers' acceptances or similar instruments will not be  considered
    the making of a loan."

    DISCUSSION:   The proposed changes would  conform the language of the Funds'
fundamental restriction on this  subject to language being  proposed for use  by
other  funds  within  the  PaineWebber fund  complex.  The  Boards  believe that
conforming the language in this manner will help avoid unintended differences in
interpretation or effect. The  language also clarifies  that the acquisition  of
loan   participations  and  similar  interests  in  debt  instruments  does  not
constitute the making of a loan.

    The proposed change also clarifies  that loans of portfolio securities  will
be  excluded from the general fundamental restriction on making loans. This does
not represent any change in the  Fund's existing fundamental policy. The  Boards
believe  that the Funds  should not be  subject to a  fundamental restriction on
securities lending and that each  Board should be able  to govern the extent  of
securities lending through a non-fundamental policy.

    The  Boards have  authorized the  adoption of  non-fundamental policies that
would allow each Fund to lend portfolio securities in an amount up to 33 1/3% of
its total  assets, which  is the  maximum level  permitted under  the 1940  Act.
Neither  of the  Funds currently lends  any portfolio securities,  and the Funds
will not  do  so unless  and  until  specific securities  lending  programs  are
considered  and approved by their respective Boards. Mitchell Hutchins currently
is considering proposals for securities lending  programs for the Funds, and  it
anticipates  presenting a recommendation for such a program to the Boards in the
near future. Any such program would be subject to a determination that  engaging
in  securities lending  would not have  an adverse  affect on the  rating of the
Funds' APS.

    Lending securities would enable a Fund  to earn additional income but  could
result  in a loss  or delay in  recovering the securities.  Under any securities
lending program that may be approved by the Boards, a Fund would lend  portfolio
securities  to broker-dealers or institutional  investors that Mitchell Hutchins
(or, where applicable, a Fund's sub-adviser) deems qualified, but only when  the
borrower  maintains acceptable collateral with the Fund's custodian in an amount
at least  equal to  the market  value  of the  securities loaned,  plus  accrued
interest  and  dividends.  The  Fund  would  pay  reasonable  administrative and
custodial fees in connection with any loan and might pay a negotiated portion of
the interest  earned  on the  cash  or instruments  held  as collateral  to  the
borrower  or  to the  placing broker.  The  Fund would  retain the  authority to
terminate any loans at any time. A Fund would regain record ownership of  loaned
securities  to exercise beneficial rights, such  as voting rights, when doing so
is considered to be in the Fund's interest.

                                       12
<PAGE>
    5.  MODIFICATION OF FUNDAMENTAL RESTRICTION ON UNDERWRITING SECURITIES.

    PROPOSED TEXT OF FUNDAMENTAL RESTRICTION:

        "The Fund will not engage in the business of underwriting securities  of
    other  issuers, except to  the extent that  the Fund might  be considered an
    underwriter under  the  federal  securities  laws  in  connection  with  its
    disposition of portfolio securities."

    DISCUSSION:   The proposed changes would  conform the language of the Funds'
fundamental restriction on this  subject to language being  proposed for use  by
other  funds  within  the  PaineWebber fund  complex.  The  Boards  believe that
conforming the language in this manner will help avoid unintended differences in
interpretation or effect.

    6.  MODIFICATION OF FUNDAMENTAL RESTRICTION ON REAL ESTATE INVESTMENTS.

    PROPOSED TEXT OF FUNDAMENTAL RESTRICTION:

        "The Fund will not purchase or sell real estate, except that investments
    in securities  of issuers  that invest  in real  estate and  investments  in
    mortgage-backed  securities,  mortgage participations  or  other instruments
    supported by interests in  real estate are not  subject to this  limitation,
    and  except that the  Fund may exercise rights  under agreements relating to
    such securities, including the  right to enforce  security interests and  to
    hold  real estate  acquired by  reason of  such enforcement  until that real
    estate can be liquidated in an orderly manner."

    DISCUSSION:   The  proposed  changes to  this  investment  restriction  more
completely  describe  the  types  of  real  estate-related  securities  that are
permissible and conform the  language of the  Funds' fundamental restriction  on
this  subject  to language  being proposed  for  use by  other funds  within the
PaineWebber fund complex.  The Boards  believe that conforming  the language  in
this manner will help avoid unintended differences in interpretation or effect.

    7.  MODIFICATION OF FUNDAMENTAL RESTRICTION ON INVESTING IN COMMODITIES.

    PROPOSED TEXT OF FUNDAMENTAL RESTRICTION:

        "The Fund will not purchase or sell physical commodities unless acquired
    as  a result  of owning  securities or other  instruments, but  the Fund may
    purchase, sell or enter into financial options and futures, forward and spot
    currency contracts,  swap  transactions  and other  financial  contracts  or
    derivative instruments."

    DISCUSSION:    The  proposed  changes  to  this  investment  restriction are
intended to ensure  that each Fund  will have the  maximum flexibility to  enter
into  hedging or other transactions utilizing financial contracts and derivative
products when doing so  is permitted by operating  policies established for  the
Fund by its Board. The Boards believe that this flexibility is necessary for the
Funds to respond to the rapid and continuing development of derivative products.
The  proposed  changes  also  allow  flexibility  in  the  event  of  changes in
regulatory  standards   or   limitations.  The   Funds'   existing   fundamental
restrictions  already permit the  Boards to establish  investment policies using
most or all of these types of  financial contracts. However, each Fund's use  of
financial  contracts is limited by the  requirements of the rating agencies that
rate the APS.

                                       13
<PAGE>
    8.  ELIMINATION OF FUNDAMENTAL RESTRICTION ON MARGIN TRANSACTIONS.

    PROPOSED CHANGE; TEXT OF RELATED NON-FUNDAMENTAL RESTRICTION:

        Upon the approval of Proposal  3, the existing fundamental  restrictions
    on  engaging in margin transactions would be eliminated, and the Funds would
    become subject to the following non-fundamental restriction:

        "The Fund will not purchase securities on margin, except for  short-term
    credit necessary for clearance of portfolio transactions and except that the
    Fund  may  make margin  deposits  in connection  with  its use  of financial
    options and futures, forward and spot currency contracts, swap  transactions
    and other financial contracts or derivative instruments."

    DISCUSSION:  The Funds are not required to have a fundamental restriction on
a  Fund's ability  to engage  in margin transactions.  In order  to maximize the
Funds' flexibility, the Boards  believe that the  Funds' restrictions on  margin
transactions should be made non-fundamental.

    The  non-fundamental restriction will conform to language being proposed for
use by other funds within the PaineWebber fund complex. The language includes an
exception  for  margin  deposits  in  connection  with  financial  contracts  or
derivative  instruments  that  conforms  with  the  exception  contained  in the
proposed  change  to  the  Funds'   fundamental  restriction  on  investing   in
commodities.

    9.  ELIMINATION OF FUNDAMENTAL RESTRICTION ON SHORT SALES.

    PROPOSED CHANGE; TEXT OF RELATED NON-FUNDAMENTAL RESTRICTION:

        Upon  the approval of Proposal  3, the existing fundamental restrictions
    on engaging in short sales would  be eliminated, and the Funds would  become
    subject to the following non-fundamental restriction:

        "The  Fund will not  engage in short  sales of securities  or maintain a
    short position, except that  the Fund may (a)  sell short 'against the  box'
    and  (b) maintain  short positions in  connection with its  use of financial
    options and futures, forward and spot currency contracts, swap  transactions
    and other financial contracts or derivative instruments."

    DISCUSSION:   Under  the 1940  Act, the  Securities and  Exchange Commission
("SEC") is authorized  to limit  the ability  of the  Funds to  engage in  short
sales,  except  in  connection with  an  underwriting  in which  the  Fund  is a
participant. One type  of short  sale transaction  that is  permitted under  SEC
policies  is a short sale "against the box,"  in which a Fund engages in a short
sale of  a  security that  it  already  owns or  has  the right  to  own.  These
transactions  generally are entered into in  order to defer realization of gains
or losses for tax or other purposes.

    Although the Funds may be limited in their ability to engage in short sales,
the Funds  are not  required to  establish a  fundamental restriction  on  short
sales.  Consistent  with the  Boards' determination  to promote  flexibility and
efficiency in the event of  future changes in the  law, the Boards believe  that
the  Funds'  fundamental  restriction  on this  subject  should  be  removed and
replaced by a non-fundamental restriction. That non-fundamental restriction will
conform to language being proposed for use by other funds within the PaineWebber
fund complex. The  language will  contain an  exception for  short positions  in
connection with financial contracts or derivative instruments that conforms with
the  exception  contained  in  the proposed  change  to  the  Funds' fundamental
restriction on investing in commodities.

                                       14
<PAGE>
    10. ELIMINATION OF FUNDAMENTAL RESTRICTION ON INVESTMENTS IN OIL, GAS AND
        MINERAL LEASES AND PROGRAMS.

    PROPOSED CHANGE; TEXT OF RELATED NON-FUNDAMENTAL RESTRICTION:

        Upon the  approval  of  Proposal  3,  the  Funds'  existing  fundamental
    restrictions on investments in oil, gas or minerals would be eliminated, and
    the Funds would become subject to the following non-fundamental restriction:

        "The  Fund  will  not  invest  in oil,  gas  or  mineral  exploration or
    development programs or  leases, except  that investments  in securities  of
    issuers   that  invest  in  such  programs  or  leases  and  investments  in
    asset-backed  securities  supported  by  receivables  generated  from   such
    programs or leases are not subject to this prohibition."

    DISCUSSION:   The Funds  are not required to  have a fundamental restriction
with respect to oil, gas or mineral investments. In order to maximize the Funds'
flexibility, the Boards  believe that the  Funds' restrictions on  oil, gas  and
mineral investments should be made non-fundamental.

    The  non-fundamental  restriction  adopted  by the  Boards  will  conform to
language being  proposed for  use by  other funds  within the  PaineWebber  fund
complex  and will establish uniform exceptions that serve to clarify the limited
scope of the restriction. The  non-fundamental restriction applies only to  oil,
gas  and mineral  leases and development  programs and not  to other investments
relating to oil, gas or minerals.

    REQUIRED VOTE.   Approval of each  of the numbered  changes contemplated  by
Proposal  3 with respect to a Fund  requires the affirmative vote of a "majority
of the outstanding voting securities" of that Fund, which for this purpose means
the affirmative vote  of the  lesser of  (1) more  than 50%  of the  outstanding
Shares  of the Fund or (2) 67% or more  of the Shares of the Fund present at the
Meeting if more than 50% of the  outstanding Shares of the Fund are  represented
at  the Meeting in person or by proxy. With respect to Proposal 3, the Shares of
a Fund's Common Stock and APS will vote together as a single class. Shareholders
of either Fund may  vote against the changes  proposed with respect to  specific
fundamental restrictions applicable to their Fund in the manner indicated on the
proxy card.

    IF  ONE OR MORE  OF THE NUMBERED  CHANGES CONTEMPLATED BY  PROPOSAL 3 IS NOT
APPROVED  BY  SHAREHOLDERS  OF  A   FUND,  THE  RELATED,  EXISTING   FUNDAMENTAL
RESTRICTION(S)  OF  THE  FUND  WILL  CONTINUE  IN  EFFECT  FOR  THAT  FUND,  BUT
DISAPPROVAL OF ALL OR PART  OF PROPOSAL 3 BY THE  SHAREHOLDERS OF ONE FUND  WILL
NOT  AFFECT ANY APPROVALS  OF PROPOSAL 3  THAT ARE OBTAINED  WITH RESPECT TO THE
OTHER FUND.

    EACH  BOARD,  INCLUDING  ITS  INDEPENDENT  BOARD  MEMBERS,  RECOMMENDS  THAT
SHAREHOLDERS VOTE "FOR" PROPOSAL 3.

                           --------------------------
               PROPOSAL 4--AMENDMENT OF ARTICLES OF INCORPORATION

    RELEVANT FUND.  Insured Municipal Income Fund.

                                       15
<PAGE>
    DISCUSSION.  Proposal 4 is to amend the Articles of Incorporation of Insured
Municipal  Income Fund to change  the formal name of  the Fund from "PaineWebber
Premier Insured Municipal Income  Fund Inc." to  "Insured Municipal Income  Fund
Inc."

    On  June  2,  1995, the  Fund's  Board,  acting upon  the  recommendation of
Mitchell Hutchins,  determined  to recommend  this  name change  to  the  Fund's
Shareholders.  At the same time,  the Board approved the  Fund's use of "Insured
Municipal Income Fund" as a trade name pending a Shareholders' meeting at  which
a  vote on a formal name change could be taken. The Fund has been doing business
as "Insured Municipal Income Fund"  since August 1995, when necessary  approvals
relating  to the Fund's listing under that  name on the New York Stock Exchange,
Inc. were obtained.

    The proposed name change, like the use of "Insured Municipal Income Fund" as
a trade name, is  intended to facilitate broadened  secondary market trading  of
the  Fund's  Common  Stock  within  the  general  brokerage  community. Mitchell
Hutchins  advised  the  Fund's  Board  that  discounts  from  net  asset   value
experienced in secondary market trading of Shares of the Fund's Common Stock may
be  due in part to  a reluctance by many brokerage  firms to actively follow and
trade closed-end  investment  companies  that  are  closely  associated  with  a
particular retail brokerage firm. Mitchell Hutchins and the Fund's Board believe
that  the proposed name change will remove that obstacle to more active trading,
while accurately describing  the Fund's investment  objective and policies  and,
therefore, should benefit holders of the Fund's Common Stock.

    REQUIRED VOTE.  Approval of this proposal requires the affirmative vote of a
majority  of the Shares of the Fund's Common Stock and APS, voting together as a
single class.

    THE INSURED MUNICIPAL  INCOME FUND  BOARD, INCLUDING  ITS INDEPENDENT  BOARD
MEMBERS, RECOMMENDS THAT SHAREHOLDERS VOTE "FOR" PROPOSAL 4.

                           --------------------------

                             ADDITIONAL INFORMATION

    The  solicitation of proxies, the cost of  which will be borne by the Funds,
will be  made  primarily  by  mail  but  also  may  include  telephone  or  oral
communications  by regular  employees of  Mitchell Hutchins  or PaineWebber, who
will not receive  any compensation therefor  from the Funds,  or by  Shareholder
Communications Corporation, professional proxy solicitors retained by the Funds,
who  will be paid the approximate fees  and expenses for soliciting services set
forth below. Soliciting fees and expenses payable to Shareholder  Communications
Corporation  by either Fund are a function of the number of Shareholders in that
Fund.

<TABLE>
<CAPTION>
                                                                                                      SOLICITING
                                                                                                   FEES AND EXPENSES
FUND                                                                                                 (APPROXIMATE)
- ----------------------------------------------------------------------------------------------  -----------------------
<S>                                                                                             <C>
Investment Grade Income Fund..................................................................          $13,900
Insured Municipal Income Fund.................................................................          $25,300
</TABLE>

                                       16
<PAGE>
                             SHAREHOLDER PROPOSALS

    Any Shareholder who wishes to submit proposals to be considered at a  Fund's
next  annual meeting of Shareholders  should send the proposals  to that Fund at
1285 Avenue of the Americas, New York, New  York 10019, so as to be received  by
the following dates, which have been determined on the basis of SEC rules:

<TABLE>
<CAPTION>
FUND                                                                                                       DATE
- --------------------------------------------------------------------------------------------------  -------------------
<S>                                                                                                 <C>
Investment Grade Income Fund......................................................................  August 3, 1996
Insured Municipal Income Fund.....................................................................  March 29, 1996
</TABLE>

Shareholder proposals that are submitted in a timely manner will not necessarily
be  included  in the  Fund's  proxy materials.  Inclusion  of such  proposals is
subject to limitations under the federal securities laws.

                                 OTHER BUSINESS

    Management knows of no business to  be presented at the Meetings other  than
the  matters set  forth in  this proxy  statement, but  should any  other matter
requiring a vote of Shareholders arise, the proxies will vote thereon  according
to their best judgment in the interest of the Funds.

                                          By order of the Boards,
                                          DIANNE E. O'DONNELL
                                          SECRETARY

February 28, 1996

           IT IS IMPORTANT THAT YOU EXECUTE AND RETURN ALL OF YOUR PROXIES
                                 PROMPTLY.

                                       17
<PAGE>
                      INDEX TO EXHIBITS TO PROXY STATEMENT

<TABLE>
<S>             <C>                                                                                 <C>
Exhibit A --    Year in Which Each Nominee or Current Board Member Standing for Reelection Became
                a Member of the Board.............................................................  A-1
Exhibit B --    Fund Ownership of Nominees and Current Board Members..............................  B-1
Exhibit C --    Officer Information...............................................................  C-1
Exhibit FR --   Existing Fundamental Restrictions.................................................  FR-1
</TABLE>
<PAGE>
                                                                       EXHIBIT A

               YEAR IN WHICH EACH NOMINEE OR CURRENT BOARD MEMBER
             STANDING FOR REELECTION BECAME A MEMBER OF THE BOARD*
<TABLE>
<CAPTION>
                                                  MARGO N.     RICHARD Q.      E. GARRETT
FUND NAME                                         ALEXANDER     ARMSTRONG     BEWKES, JR.**    MEYER FELDBERG     RICHARD BURT
- -----------------------------------------------  -----------  -------------  ---------------  -----------------  ---------------
<S>                                              <C>          <C>            <C>              <C>                <C>
Investment Grade Income Fund...................        1996          1995            1992              1992              1995
Insured Municipal Income Fund..................        1995          1995            1993              1993              1995

<CAPTION>
                                                   JOHN R.
FUND NAME                                        TORELL III
- -----------------------------------------------  -----------
<S>                                              <C>
Investment Grade Income Fund...................        1992
Insured Municipal Income Fund..................        1992
</TABLE>

- ----------------------------------
 *Excludes  Mary C.  Farrell, George  W. Gowen,  Frederic V.  Malek and  Carl W.
  Schafer, who are not presently members of these Boards.

**Mr. Bewkes resigned from each Board and was reappointed during 1993.

                                      A-1
<PAGE>
                                                                       EXHIBIT B

            FUND OWNERSHIP OF NOMINEES AND CURRENT BOARD MEMBERS (1)

<TABLE>
<CAPTION>
                                                                                                            NO. OF SHARES HELD
                                                                                                                  AS OF
NOMINEE OR CURRENT BOARD MEMBERS                                                                               FEBRUARY 7,
WHO ARE STANDING FOR REELECTION                                               FUND                               1996 (2)
- ----------------------------------------------------  ----------------------------------------------------  ------------------
<S>                                                   <C>                                                   <C>
E. Garrett Bewkes, Jr...............................  Insured Municipal Income Fund                                 18,200
John R. Torell III..................................  Insured Municipal Income Fund                                    100
                                                      Investment Grade Income Fund                                     100
</TABLE>

- ----------------------------------

(1) The following Board Members did not file timely reports under Section  16(a)
    of  the Securities  Exchange Act  of 1934  ("Exchange Act"):  Mrs. Alexander
    filed one late report for both Insured Municipal Income Fund and  Investment
    Grade  Income Fund; Mr. Feldberg, Mr. Bewkes, Mr. Torell, and Mr. White each
    filed one late report for Insured Municipal Income Fund. None of the delayed
    reports involved  any  transactions,  and  neither  Fund  is  aware  of  any
    outstanding reports required to be filed by any Board Member.

(2)  Unless otherwise stated, as  of the date indicated,  each director has sole
    voting and investment power of Shares owned.

                                      B-1
<PAGE>
                                                                       EXHIBIT C

                              OFFICER INFORMATION
<TABLE>
<CAPTION>
                                                                                 NO. OF INVESTMENT     OFFICER SINCE
                                                                                COMPANIES ON WHICH   -----------------
NAME; PRINCIPAL BUSINESS OCCUPATION                                                SERVES AS AN      INVESTMENT GRADE
FOR THE PAST FIVE YEARS                            AGE            OFFICE          OFFICER (1)(2)        INCOME FUND
- ---------------------------------------------      ---      ------------------  -------------------  -----------------
<S>                                            <C>          <C>                 <C>                  <C>
Margo N. Alexander; Mrs. Alexander is                  48   President                       30                5/95
 president, chief executive officer and a
 director of Mitchell Hutchins (since January
 1995). Mrs. Alexander is an executive vice
 president and director of PaineWebber.

Teresa M. Boyle; Ms. Boyle is a first vice             37   Vice President                  30               12/93
 president and manager-- advisory
 administration of Mitchell Hutchins. Prior
 to November 1993, she was compliance manager
 of Hyperion Capital Management, Inc., an
 investment advisory firm. Prior to April
 1993, Ms. Boyle was a vice president and
 manager--legal administration of Mitchell
 Hutchins.

Joan L. Cohen; Ms. Cohen is a vice president           31   Vice President and              25                2/94
 and attorney of Mitchell Hutchins. Prior to                 Assistant
 December 1993, she was an associate at the                  Secretary
 law firm of Seward & Kissel.

C. William Maher; Mr. Maher is a first vice            34   Vice President and              30                6/95
 president and a senior manager of the mutual                Assistant
 fund finance division of Mitchell Hutchins.                 Treasurer

<CAPTION>
NAME; PRINCIPAL BUSINESS OCCUPATION             INSURED MUNICIPAL
FOR THE PAST FIVE YEARS                            INCOME FUND
- ---------------------------------------------  -------------------
<S>                                            <C>
Margo N. Alexander; Mrs. Alexander is                    5/95
 president, chief executive officer and a
 director of Mitchell Hutchins (since January
 1995). Mrs. Alexander is an executive vice
 president and director of PaineWebber.
Teresa M. Boyle; Ms. Boyle is a first vice              12/93
 president and manager-- advisory
 administration of Mitchell Hutchins. Prior
 to November 1993, she was compliance manager
 of Hyperion Capital Management, Inc., an
 investment advisory firm. Prior to April
 1993, Ms. Boyle was a vice president and
 manager--legal administration of Mitchell
 Hutchins.
Joan L. Cohen; Ms. Cohen is a vice president             2/94
 and attorney of Mitchell Hutchins. Prior to
 December 1993, she was an associate at the
 law firm of Seward & Kissel.
C. William Maher; Mr. Maher is a first vice              6/95
 president and a senior manager of the mutual
 fund finance division of Mitchell Hutchins.
</TABLE>

                                      C-1
<PAGE>
                        OFFICER INFORMATION--(CONTINUED)
<TABLE>
<CAPTION>
                                                                                 NO. OF INVESTMENT     OFFICER SINCE
                                                                                COMPANIES ON WHICH   -----------------
NAME; PRINCIPAL BUSINESS OCCUPATION                                                SERVES AS AN      INVESTMENT GRADE
FOR THE PAST FIVE YEARS                            AGE            OFFICE          OFFICER (1)(2)        INCOME FUND
- ---------------------------------------------      ---      ------------------  -------------------  -----------------
<S>                                            <C>          <C>                 <C>                  <C>
Dennis McCauley; Mr. McCauley is a managing            49   Vice President                  18                9/95
 director and chief investment officer--fixed
 income of Mitchell Hutchins. Prior to
 December 1994, he was director of fixed
 income investments of IBM Corporation.

Ann E. Moran; Ms. Moran is a vice president            38   Vice President and              30                6/93
 of Mitchell Hutchins.                                       Assistant
                                                             Treasurer

Dianne E. O'Donnell; Ms. O'Donnell is a                43   Vice President and              30                8/92
 senior vice president and deputy general                    Secretary
 counsel of Mitchell Hutchins.

Victoria E. Schonfeld; Ms. Schonfeld is a              45   Vice President                  30                5/94
 managing director and general counsel of
 Mitchell Hutchins. From April 1990 to May
 1994, she was a partner in the law firm of
 Arnold & Porter. Prior to April 1990, she
 was a partner in the law firm of Shereff,
 Friedman, Hoffman & Goodman.

Paul H. Schubert; Mr. Schubert is a first              33   Vice President and              30                9/94
 vice president and a senior manager of the                  Assistant
 mutual fund finance division of Mitchell                    Treasurer
 Hutchins. From August 1992 to August 1994,
 he was a vice president at BlackRock
 Financial Management, Inc. Prior to August
 1992, he was an audit manager with Ernst &
 Young LLP.

<CAPTION>
NAME; PRINCIPAL BUSINESS OCCUPATION             INSURED MUNICIPAL
FOR THE PAST FIVE YEARS                            INCOME FUND
- ---------------------------------------------  -------------------
<S>                                            <C>
Dennis McCauley; Mr. McCauley is a managing              9/95
 director and chief investment officer--fixed
 income of Mitchell Hutchins. Prior to
 December 1994, he was director of fixed
 income investments of IBM Corporation.
Ann E. Moran; Ms. Moran is a vice president              6/93
 of Mitchell Hutchins.
Dianne E. O'Donnell; Ms. O'Donnell is a                  2/93
 senior vice president and deputy general
 counsel of Mitchell Hutchins.
Victoria E. Schonfeld; Ms. Schonfeld is a                5/94
 managing director and general counsel of
 Mitchell Hutchins. From April 1990 to May
 1994, she was a partner in the law firm of
 Arnold & Porter. Prior to April 1990, she
 was a partner in the law firm of Shereff,
 Friedman, Hoffman & Goodman.
Paul H. Schubert; Mr. Schubert is a first                9/94
 vice president and a senior manager of the
 mutual fund finance division of Mitchell
 Hutchins. From August 1992 to August 1994,
 he was a vice president at BlackRock
 Financial Management, Inc. Prior to August
 1992, he was an audit manager with Ernst &
 Young LLP.
</TABLE>

                                      C-2
<PAGE>
                        OFFICER INFORMATION--(CONTINUED)
<TABLE>
<CAPTION>
                                                                                 NO. OF INVESTMENT     OFFICER SINCE
                                                                                COMPANIES ON WHICH   -----------------
NAME; PRINCIPAL BUSINESS OCCUPATION                                                SERVES AS AN      INVESTMENT GRADE
FOR THE PAST FIVE YEARS                            AGE            OFFICE          OFFICER (1)(2)        INCOME FUND
- ---------------------------------------------      ---      ------------------  -------------------  -----------------
<S>                                            <C>          <C>                 <C>                  <C>
Julian F. Sluyters; Mr. Sluyters is a senior           35   Vice President and              30                8/92
 vice president and the director of the                      Treasurer
 mutual fund finance division of Mitchell
 Hutchins. Prior to 1991, he was an audit
 senior manager with Ernst & Young LLP.

Gregory K. Todd; Mr. Todd is a first vice              39   Vice President and              30                6/93
 president and associate general counsel of                  Assistant
 Mitchell Hutchins. Prior to 1993, he was a                  Secretary
 partner in the law firm of Shereff,
 Friedman, Hoffman & Goodman.

Keith A. Weller; Mr. Weller is a first vice            34   Vice President and              24                9/95
 president and associate general counsel of                  Assistant
 Mitchell Hutchins. From September 1987 to                   Secretary
 May 1995, he was an attorney in private
 practice.

<CAPTION>
NAME; PRINCIPAL BUSINESS OCCUPATION             INSURED MUNICIPAL
FOR THE PAST FIVE YEARS                            INCOME FUND
- ---------------------------------------------  -------------------
<S>                                            <C>
Julian F. Sluyters; Mr. Sluyters is a senior             2/93
 vice president and the director of the
 mutual fund finance division of Mitchell
 Hutchins. Prior to 1991, he was an audit
 senior manager with Ernst & Young LLP.
Gregory K. Todd; Mr. Todd is a first vice                6/93
 president and associate general counsel of
 Mitchell Hutchins. Prior to 1993, he was a
 partner in the law firm of Shereff,
 Friedman, Hoffman & Goodman.
Keith A. Weller; Mr. Weller is a first vice              9/95
 president and associate general counsel of
 Mitchell Hutchins. From September 1987 to
 May 1995, he was an attorney in private
 practice.
</TABLE>

- ----------------------------------
(1)  Indicates   only  investment  companies  for  which  Mitchell  Hutchins  or
     PaineWebber serves as investment adviser;  each officer serves in the  same
     capacity for each separate investment company.

(2)  The  following officers did not file  timely reports under Section 16(a) of
     the Exchange Act: Mrs.  Alexander, Mr. Maher, and  Mr. McCauley each  filed
     one report late for both Insured Municipal Income Fund and Investment Grade
     Income  Fund; Mr.  Schubert filed  two reports  late for  Insured Municipal
     Income Fund  and one  report late  for Investment  Grade Income  Fund;  Ms.
     Boyle,  Ms. Cohen, Ms. Harris, Ms. Moran, Ms. O'Donnell, Ms. Schonfeld, Mr.
     Sluyters, and Mr.  Todd each filed  one late report  for Insured  Municipal
     Income  Fund. None  of the delayed  reports involved  any transactions, and
     neither Fund is aware  of any outstanding reports  required to be filed  by
     any officer.

                                      C-3
<PAGE>
                                                                      EXHIBIT FR

                       EXISTING FUNDAMENTAL RESTRICTIONS

    The  existing fundamental  restrictions of  each Fund  will be  found on the
following pages of this exhibit.

                               TABLE OF CONTENTS

<TABLE>
<S>                                                                                              <C>
Investment Grade Income Fund...................................................................       FR-2
Insured Municipal Income Fund..................................................................       FR-3
</TABLE>

                                      FR-1
<PAGE>
                          INVESTMENT GRADE INCOME FUND

The Fund may not:

     (1) issue senior securities (including borrowing money from banks and other
entities and through  reverse repurchase  agreements), except (a)  the Fund  may
borrow  in an  amount not in  excess of 33  1/3% of total  assets (including the
amount  of  senior  securities  issued,  but  reduced  by  any  liabilities  and
indebtedness  not  constituting  senior  securities),  (b)  the  Fund  may issue
preferred stock having  a liquidation  preference in an  amount which,  combined
with   the  amount  of  any  liabilities  or  indebtedness  constituting  senior
securities, is not in excess of 50% of its total assets (computed as provided in
clause (a) above)  and (c) the  Fund may borrow  up to an  additional 5% of  its
total  assets (not  including the  amount borrowed)  for temporary  or emergency
purposes;

     (2) purchase the securities of any one  issuer if as a result more than  5%
of its total assets would be invested in the securities of that issuer, provided
that  securities issued  or guaranteed by  the U.S. government,  its agencies or
instrumentalities are not subject to  this limitation and further provided  that
up to 25% of the value of the Fund's total assets may be invested without regard
to this 5% limitation;

     (3)  make an investment in  any one industry if  the investment would cause
the aggregate value of all the Fund's investments in such industry to equal  25%
or  more of  the Fund's  total assets; provided  that this  limitation shall not
apply to investments in securities issued or guaranteed by the U.S.  government,
its  agencies or  instrumentalities, and  provided further  that this limitation
does not apply  to Municipal  Obligations other than  those backed  only by  the
assets and revenues of a non-governmental entity;

     (4)  purchase securities on margin, except for short-term credits necessary
for clearance  of portfolio  transactions, and  except that  the Fund  may  make
margin  deposits in  connection with its  use of options,  futures contracts and
options on futures contracts;

     (5) engage in  the business  of underwriting securities  of other  issuers,
except  to  the extent  that, in  connection with  the disposition  of portfolio
securities, the Fund may be deemed an underwriter under federal securities  laws
and except that the Fund may write options;

     (6)  make short  sales of securities  or maintain a  short position, except
that the  Fund  may maintain  short  positions in  connection  with its  use  of
options,  futures  contracts and  options on  futures  contracts and  sell short
"against the box;"

     (7) purchase or sell real estate (including real estate limited partnership
interests), provided that  the Fund  may invest  in securities  secured by  real
estate  or interests therein or issued by entities that invest in real estate or
interests therein, and provided further that the Fund may exercise rights  under
agreements  relating to such securities, including the right to enforce security
interests and liquidate real estate acquired as a result of such enforcement;

     (8) purchase or sell  commodities or commodity  contracts, except that  the
Fund may purchase or sell financial futures contracts and options thereon;

     (9) invest in oil, gas or mineral-related programs or leases; or

                                      FR-2
<PAGE>
    (10)   make  loans,  except  through  loans  of  portfolio  instruments  and
repurchase agreements,  provided  that  for purposes  of  this  restriction  the
acquisition  of bonds, debentures or other debt instruments or interests therein
and  investment  in   government  obligations,   short-term  commercial   paper,
certificates  of deposit and bankers' acceptances shall  not be deemed to be the
making of a loan.

    For purposes  of  limitation (2),  each  state (including  the  District  of
Columbia),   territory  and  possession  of   the  United  States,  each  public
subdivision, agency, instrumentality and authority thereof, and each multi-state
agency of which a state is a member is a separate "issuer." When the assets  and
revenues of an agency, authority, instrumentality or other political subdivision
are  separate from the  government creating the subdivision  and the security is
backed only by  the assets  and revenues  of the  subdivision, such  subdivision
would  be deemed to be the sole issuer. Similarly, in the case of an IDB or PAB,
if that bond is backed only by  the assets and revenues of the  non-governmental
user,  then such non-governmental  user would be  deemed to be  the sole issuer.
However, if the  creating government  or another entity  guarantees a  security,
then to the extent that the value of all securities issued or guaranteed by such
government  or entity  and owned  by the  Fund exceeds  10% of  the Fund's total
assets, such a guarantee  would be considered a  separate security and would  be
treated  as issued by  such government or entity.  The foregoing restrictions do
not limit the percentage of the Fund's assets that may be invested in  Municipal
Obligations insured by any given insurer.

                         INSURED MUNICIPAL INCOME FUND

The Fund may not:

     (1) issue senior securities (including borrowing money from banks and other
entities  and through  reverse repurchase agreements),  except (a)  the Fund may
borrow in an  amount not in  excess of 33  1/3% of total  assets (including  the
amount  of  senior  securities  issued,  but  reduced  by  any  liabilities  and
indebtedness not  constituting  senior  securities),  (b)  the  Fund  may  issue
preferred  stock having  a liquidation preference  in an  amount which, combined
with  the  amount  of  any  liabilities  or  indebtedness  constituting   senior
securities, is not in excess of 50% of its total assets (computed as provided in
clause  (a) above) and  (c) the Fund  may borrow up  to an additional  5% of its
total assets  (not including  the amount  borrowed) for  temporary or  emergency
purposes;

     (2)  purchase the securities of any one issuer  if as a result more than 5%
of its total assets would be invested in the securities of that issuer, provided
that securities issued  or guaranteed by  the U.S. government,  its agencies  or
instrumentalities  are not subject to this  limitation and further provided that
up to 25% of the value of the Fund's total assets may be invested without regard
to this 5% limitation;

     (3) make an investment  in any one industry  if the investment would  cause
the  aggregate value of all the Fund's investments in such industry to equal 25%
or more of  the Fund's  total assets; provided  that this  limitation shall  not
apply  to investments in securities issued or guaranteed by the U.S. government,
its agencies or  instrumentalities, and  provided further  that this  limitation
does  not apply  to Municipal  Obligations other than  those backed  only by the
assets and revenues of a non-governmental entity;

     (4) purchase securities on margin, except for short-term credits  necessary
for  clearance  of portfolio  transactions, and  except that  the Fund  may make
margin deposits in  connection with its  use of options,  futures contracts  and
options on futures contracts;

                                      FR-3
<PAGE>
     (5)  engage in  the business of  underwriting securities  of other issuers,
except to  the extent  that, in  connection with  the disposition  of  portfolio
securities,  the Fund may be deemed an underwriter under federal securities laws
and except that the Fund may write options;

     (6) make short  sales of securities  or maintain a  short position,  except
that  the  Fund may  maintain  short positions  in  connection with  its  use of
options, futures  contracts and  options  on futures  contracts and  sell  short
"against the box;"

     (7) purchase or sell real estate (including real estate limited partnership
interests),  provided that  the Fund  may invest  in securities  secured by real
estate or interests therein or issued by entities that invest in real estate  or
interests  therein, and provided further that the Fund may exercise rights under
agreements relating to such securities, including the right to enforce  security
interests and liquidate real estate acquired as a result of such enforcement;

     (8)  purchase or sell  commodities or commodity  contracts, except that the
Fund may purchase or sell financial futures contracts and options thereon;

     (9) invest in oil, gas or mineral-related programs or leases; or

    (10)  make  loans,  except  through  loans  of  portfolio  instruments   and
repurchase  agreements,  provided  that  for purposes  of  this  restriction the
acquisition of bonds, debentures or other debt instruments or interests  therein
and   investment  in   government  obligations,   short-term  commercial  paper,
certificates of deposit and bankers' acceptances  shall not be deemed to be  the
making of a loan.

    For  purposes  of  limitation (2),  each  state (including  the  District of
Columbia),  territory  and  possession  of   the  United  States,  each   public
subdivision, agency, instrumentality and authority thereof, and each multi-state
agency  of which a state is a member is a separate "issuer." When the assets and
revenues of an agency, authority, instrumentality or other political subdivision
are separate from the  government creating the subdivision  and the security  is
backed  only by  the assets  and revenues  of the  subdivision, such subdivision
would be deemed to be the sole  issuer. Similarly, in the case of an  industrial
development  bond  ("IDB") or  private activity  bond ("PAB"),  if that  bond is
backed only by the assets and  revenues of the non-governmental user, then  such
nongovernmental  user would  be deemed  to be the  sole issuer.  However, if the
creating government or another entity guarantees a security, then to the  extent
that  the value  of all  securities issued or  guaranteed by  such government or
entity and owned  by the Fund  exceeds 10% of  the Fund's total  assets, such  a
guarantee would be considered a separate security and would be treated as issued
by  such  government or  entity.  The foregoing  restrictions  do not  limit the
percentage of the Fund's  assets that may be  invested in Municipal  Obligations
insured by any given insurer.

                                      FR-4

<PAGE>

                                      PROXY
                   Investment Grade Municipal Income Fund Inc.

                                  Common Stock

                Special Meeting of Shareholders - April 11, 1996

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF INVESTMENT GRADE
MUNICIPAL INCOME FUND INC. ("COMPANY").  THE UNDERSIGNED HEREBY APPOINTS AS
PROXIES GREGORY K. TODD AND KEITH A. WELLER AND EACH OF THEM (WITH POWER OF
SUBSTITUTION) TO VOTE FOR THE UNDERSIGNED ALL OF THE UNDERSIGNED'S SHARES OF
COMMON STOCK IN THE COMPANY AT THE ABOVE REFERENCED MEETING, AND ANY ADJOURNMENT
THEREOF, WITH ALL THE POWER THE UNDERSIGNED WOULD HAVE IF PERSONALLY PRESENT.
THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED AS INSTRUCTED.  UNLESS
INDICATED TO THE CONTRARY, THIS PROXY SHALL BE DEEMED TO GRANT AUTHORITY TO VOTE
"FOR" ALL PROPOSALS RELATING TO THE COMPANY.

                             YOUR VOTE IS IMPORTANT

Please date and sign this proxy on the reverse side and return it in the
enclosed envelope to PFPC Inc., P.O. Box 9426, Wilmington, DE 19809-9938.

        Please indicate your vote by an "X" in the appropriate box below.

                 The Board of Directors recommends a vote "FOR"

1.   Election of ten members of the Company's Board of Directors to serve until
     the next annual meeting or until their successors are duly elected and
     qualified;

     [ ]  FOR all nominees listed below      [ ]  WITHHOLD AUTHORITY
          (except as marked to the           to vote for all nominees
          contrary below)                    listed below

(INSTRUCTION:  TO WITHHOLD AUTHORITY TO VOTE FOR ANY INDIVIDUAL NOMINEE, STRIKE
               THROUGH THE NOMINEE'S NAME IN THE LIST BELOW.)

     Margo N. Alexander, Richard Q. Armstrong, E. Garrett Bewkes, Jr., Richard
     Burt, Mary C. Farrell, Meyer Feldberg, George W. Gowen, Frederic V. Malek,
     Carl W. Schafer, John R. Torell III

2.   This Proposal does not apply to holders of the Company's common stock.

                                                       FOR  AGAINST   ABSTAIN

3.   Approval of the proposed changes to the
     Company's fundamental investment
     restrictions                                      [ ]     [ ]      [ ]

[ ]       To vote against the proposed changes
          to one or more specific fundamental
          investment restrictions, but to approve
          the others, place an "X" in the box at left
          AND indicate the number(s) (as set forth
          in the proxy statement) of the investment
          restriction(s) you do not want to change
          on this line:                                     ______________


                 Continued and to be signed on the reverse side

<PAGE>

           This proxy will not be voted unless it is dated and signed
                           exactly as instructed below


If shares are held by an individual, sign your name exactly as it appears on
this proxy card.  If shares are held jointly, either party may sign, but the
name of the party signing should conform exactly to the name shown on this proxy
card.  If shares are held by a corporation, partnership or similar account, the
name and the capacity of the individual signing the proxy card should be
indicated -- for example:  "ABC Corp., John Doe, Treasurer."


                                        Sign exactly as name appears hereon.


                                        _________________________________(L.S.)

                                        _________________________________(L.S.)

                                        Date_____________________________, 1996

<PAGE>

                                      PROXY
                   Investment Grade Municipal Income Fund Inc.

                            Auction Preferred Shares

                Special Meeting of Shareholders - April 11, 1996

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF INVESTMENT
GRADE MUNICIPAL INCOME FUND INC. ("COMPANY").  THE UNDERSIGNED HEREBY
APPOINTS AS PROXIES GREGORY K. TODD AND KEITH A. WELLER AND EACH OF THEM
(WITH POWER OF SUBSTITUTION) TO VOTE FOR THE UNDERSIGNED ALL OF THE
UNDERSIGNED'S AUCTION PREFERRED SHARES IN THE COMPANY AT THE ABOVE REFERENCED
MEETING, AND ANY ADJOURNMENT THEREOF, WITH ALL THE POWER THE UNDERSIGNED
WOULD HAVE IF PERSONALLY PRESENT. THE SHARES REPRESENTED BY THIS PROXY WILL
BE VOTED AS INSTRUCTED.  UNLESS INDICATED TO THE CONTRARY, THIS PROXY SHALL
BE DEEMED TO GRANT AUTHORITY TO VOTE "FOR" ALL PROPOSALS RELATING TO THE
COMPANY.

                             YOUR VOTE IS IMPORTANT

Please date and sign this proxy on the reverse side and return it in the
enclosed envelope to Bankers Trust Co., 4 Albany Street 7th Floor, New York,
NY 10006, Attn: S. Coulon.

        Please indicate your vote by an "X" in the appropriate box below.

                 The Board of Directors recommends a vote "FOR"

1. & 2.   Election of ten members of the Company's Board of Directors to serve
          until the next annual meeting or until their successors are duly
          elected and qualified;

          [ ]  FOR all nominees listed below      [ ]  WITHHOLD AUTHORITY
               (except as marked to the           to vote for all nominees
               contrary below)                    listed below

(INSTRUCTION:  TO WITHHOLD AUTHORITY TO VOTE FOR ANY INDIVIDUAL NOMINEE, STRIKE
               THROUGH THE NOMINEE'S NAME IN THE LIST BELOW.)

     Margo N. Alexander, Richard Q. Armstrong, E. Garrett Bewkes, Jr., Richard
     Burt, Mary C. Farrell, Meyer Feldberg, George W. Gowen, Frederic V. Malek,
     Carl W. Schafer, John R. Torell III


                                                       FOR  AGAINST   ABSTAIN

3.   Approval of the proposed changes to the
     Company's fundamental investment
     restrictions                                      [ ]    [ ]       [ ]

[ ]       To vote against the proposed changes
          to one or more specific fundamental
          investment restrictions, but to approve
          the others, place an "X" in this box
          AND indicate the number(s) (as set forth
          in the proxy statement) of the investment
          restriction(s) you do not want to change
          on this line:                                     ______________


                 Continued and to be signed on the reverse side

<PAGE>

           This proxy will not be voted unless it is dated and signed
                           exactly as instructed below


If shares are held by an individual, sign your name exactly as it appears on
this proxy card.  If shares are held jointly, either party may sign, but the
name of the party signing should conform exactly to the name shown on this proxy
card.  If shares are held by a corporation, partnership or similar account, the
name and the capacity of the individual signing the proxy card should be
indicated -- for example:  "ABC Corp., John Doe, Treasurer."


                                        Sign exactly as name appears hereon.


                                        _________________________________(L.S.)

                                        _________________________________(L.S.)

                                        Date_____________________________, 1996

<PAGE>

                                      PROXY
             PaineWebber Premier Insured Municipal Income Fund Inc.
                (doing business as Insured Municipal Income Fund)

                                  Common Stock

                Special Meeting of Shareholders - April 11, 1996

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF PAINEWEBBER
PREMIER INSURED MUNICIPAL INCOME FUND INC. (DOING BUSINESS AS INSURED
MUNICIPAL INCOME FUND) ("COMPANY").  THE UNDERSIGNED HEREBY APPOINTS AS
PROXIES GREGORY K. TODD AND KEITH A. WELLER AND EACH OF THEM (WITH POWER OF
SUBSTITUTION) TO VOTE FOR THE UNDERSIGNED ALL OF THE UNDERSIGNED'S SHARES OF
COMMON STOCK IN THE COMPANY AT THE ABOVE REFERENCED MEETING, AND ANY
ADJOURNMENT THEREOF, WITH ALL THE POWER THE UNDERSIGNED WOULD HAVE IF
PERSONALLY PRESENT.  THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED AS
INSTRUCTED. UNLESS INDICATED TO THE CONTRARY, THIS PROXY SHALL BE DEEMED TO
GRANT AUTHORITY TO VOTE "FOR" ALL PROPOSALS RELATING TO THE COMPANY.

                             YOUR VOTE IS IMPORTANT

Please date and sign this proxy on the reverse side and return it in the
enclosed envelope to PFPC Inc., P.O. Box 9426, Wilmington, DE 19809-9938.

        Please indicate your vote by an "X" in the appropriate box below.

                 The Board of Directors recommends a vote "FOR"

1.   Election of ten members of the Company's Board of Directors to serve until
     the next annual meeting or until their successors are duly elected and
     qualified;

     [ ]  FOR all nominees listed below      [ ]  WITHHOLD AUTHORITY
          (except as marked to the           to vote for all nominees
          contrary below)                    listed below

(INSTRUCTION:  TO WITHHOLD AUTHORITY TO VOTE FOR ANY INDIVIDUAL NOMINEE, STRIKE
               THROUGH THE NOMINEE'S NAME IN THE LIST BELOW.)

     Margo N. Alexander, Richard Q. Armstrong, E. Garrett Bewkes, Jr., Richard
     Burt, Mary C. Farrell, Meyer Feldberg, George W. Gowen, Frederic V. Malek,
     Carl W. Schafer, John R. Torell III

2.   This Proposal does not apply to holders of the Company's common stock.

                                                       FOR  AGAINST   ABSTAIN

3.   Approval of the proposed changes to the
     Company's fundamental investment
     restrictions                                      [ ]    [ ]       [ ]

[ ]       To vote against the proposed changes
          to one or more specific fundamental
          investment restrictions, but to approve
          the others, place an "X" in the box at left
          AND indicate the number(s) (as set forth
          in the proxy statement) of the investment
          restriction(s) you do not want to change
          on this line:                                     ______________

4.   Amendment of Articles of Incorporation to
     change Company's name to "Insured Municipal
     Income Inc."                                      [ ]    [ ]       [ ]

                 Continued and to be signed on the reverse side

<PAGE>

           This proxy will not be voted unless it is dated and signed
                           exactly as instructed below


If shares are held by an individual, sign your name exactly as it appears on
this proxy card.  If shares are held jointly, either party may sign, but the
name of the party signing should conform exactly to the name shown on this proxy
card.  If shares are held by a corporation, partnership or similar account, the
name and the capacity of the individual signing the proxy card should be
indicated -- for example:  "ABC Corp., John Doe, Treasurer."


                                        Sign exactly as name appears hereon.


                                        _________________________________(L.S.)

                                        _________________________________(L.S.)

                                        Date_____________________________, 1996


<PAGE>

                                      PROXY
             PaineWebber Premier Insured Municipal Income Fund Inc.
                (doing business as Insured Municipal Income Fund)
                            Auction Preferred Shares

                Special Meeting of Shareholders - April 11, 1996

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF PAINEWEBBER
PREMIER INSURED MUNICIPAL INCOME FUND INC. (DOING BUSINESS AS INSURED
MUNICIPAL INCOME FUND) ("COMPANY").  THE UNDERSIGNED HEREBY APPOINTS AS
PROXIES GREGORY K. TODD AND KEITH A. WELLER AND EACH OF THEM (WITH POWER OF
SUBSTITUTION) TO VOTE FOR THE UNDERSIGNED ALL OF THE UNDERSIGNED'S AUCTION
PREFERRED SHARES IN THE COMPANY AT THE ABOVE REFERENCED MEETING, AND ANY
ADJOURNMENT THEREOF, WITH ALL THE POWER THE UNDERSIGNED WOULD HAVE IF
PERSONALLY PRESENT.  THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED AS
INSTRUCTED. UNLESS INDICATED TO THE CONTRARY, THIS PROXY SHALL BE DEEMED TO
GRANT AUTHORITY TO VOTE "FOR" ALL PROPOSALS RELATING TO THE COMPANY.

                             YOUR VOTE IS IMPORTANT

Please date and sign this proxy on the reverse side and return it in the
enclosed envelope to Bankers Trust Co., 4 Albany Street, 7th Floor, New York,
NY 10006, Attn: S. Coulon.

        Please indicate your vote by an "X" in the appropriate box below.

                 The Board of Directors recommends a vote "FOR"

1. & 2.   Election of ten members of the Company's Board of Directors to serve
          until the next annual meeting or until their successors are duly
          elected and qualified;

          [ ]  FOR all nominees listed below      [ ]  WITHHOLD AUTHORITY
               (except as marked to the           to vote for all nominees
               contrary below)                    listed below

(INSTRUCTION:  TO WITHHOLD AUTHORITY TO VOTE FOR ANY INDIVIDUAL NOMINEE, STRIKE
               THROUGH THE NOMINEE'S NAME IN THE LIST BELOW.)

     Margo N. Alexander, Richard Q. Armstrong, E. Garrett Bewkes, Jr., Richard
     Burt, Mary C. Farrell, Meyer Feldberg, George W. Gowen, Frederic V. Malek,
     Carl W. Schafer, John R. Torell III


                                                       FOR  AGAINST   ABSTAIN

3.   Approval of the proposed changes to the
     Company's fundamental investment
     restrictions                                      [ ]    [ ]       [ ]

[ ]       To vote against the proposed changes
          to one or more specific fundamental
          investment restrictions, but to approve
          the others, place an "X" in the box at left
          AND indicate the number(s) (as set forth
          in the proxy statement) of the investment
          restriction(s) you do not want to change
          on this line:                                     ______________

4.   Amendment of Articles of Incorporation to
     change the Company's name to "Insured Municipal
     Income Inc."                                      [ ]    [ ]       [ ]

                 Continued and to be signed on the reverse side

<PAGE>

           This proxy will not be voted unless it is dated and signed
                           exactly as instructed below


If shares are held by an individual, sign your name exactly as it appears on
this proxy card.  If shares are held jointly, either party may sign, but the
name of the party signing should conform exactly to the name shown on this proxy
card.  If shares are held by a corporation, partnership or similar account, the
name and the capacity of the individual signing the proxy card should be
indicated -- for example:  "ABC Corp., John Doe, Treasurer."



                                        Sign exactly as name appears hereon.


                                        _________________________________(L.S.)

                                        _________________________________(L.S.)

                                        Date_____________________________, 1996





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