WITTER DEAN UTILITIES FUND
485APOS, 1998-02-25
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<PAGE>
   
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON FEBRUARY 25, 1998
    
 
                                                            FILE NOS.:  33-18983
                                                                        811-5415
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                ----------------
 
                                   FORM N-1A
                             REGISTRATION STATEMENT
                        UNDER THE SECURITIES ACT OF 1933                     /X/
 
   
                        POST-EFFECTIVE AMENDMENT NO. 12                      /X/
    
                                     AND/OR
              REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
                                  ACT OF 1940                                /X/
   
                                AMENDMENT NO. 14                             /X/
    
                               ------------------
 
                           DEAN WITTER UTILITIES FUND
                        (A MASSACHUSETTS BUSINESS TRUST)
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
 
                             TWO WORLD TRADE CENTER
                            NEW YORK, NEW YORK 10048
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICE)
       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (212) 392-1600
 
                                BARRY FINK, ESQ.
                             TWO WORLD TRADE CENTER
                            NEW YORK, NEW YORK 10048
                    (NAME AND ADDRESS OF AGENT FOR SERVICE)
 
                            ------------------------
 
                                    COPY TO:
                            DAVID M. BUTOWSKY, ESQ.
                             GORDON ALTMAN BUTOWSKY
                             WEITZEN SHALOV & WEIN
                              114 WEST 47TH STREET
                            NEW YORK, NEW YORK 10036
                                ----------------
 
                 APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:
  As soon as practicable after this Post-Effective Amendment becomes effective
 
 IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE (CHECK APPROPRIATE BOX)
        ___ immediately upon filing pursuant to paragraph (b)
   
        ___ on                pursuant to paragraph (b)
    
        ___ 60 days after filing pursuant to paragraph (a)
   
        _X_ on April 27, 1998 pursuant to paragraph (a) of rule 485.
    
 
                            AMENDING THE PROSPECTUS
 
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- --------------------------------------------------------------------------------
<PAGE>
                           DEAN WITTER UTILITIES FUND
 
                             CROSS-REFERENCE SHEET
 
                                   FORM N-1A
 
<TABLE>
<CAPTION>
ITEM                                               CAPTION
- ------------------------------------------------------------------------------------------
<S>                 <C>
PART A                                            PROSPECTUS
 1.  ............... Cover Page
 2.  ............... Summary of Fund Expenses; Prospectus Summary
 3.  ............... Financial Highlights; Performance Information
 4.  ............... Investment Objective and Policies; The Fund and its Management, Cover
                     Page; Investment Restrictions; Prospectus Summary; Financial
                     Highlights
 5.  ............... The Fund and Its Management; Back Cover; Investment Objective and
                     Policies
 6.  ............... Dividends, Distributions and Taxes; Additional Information
 7.  ............... Purchase of Fund Shares; Shareholder Services; Prospectus Summary
 8.  ............... Purchase of Fund Shares; Redemptions and Repurchases; Shareholder
                     Services
 9.  ............... Not Applicable
 
PART B                               STATEMENT OF ADDITIONAL INFORMATION
10.  ............... Cover Page
11.  ............... Table of Contents
12.  ............... The Fund and Its Management
13.  ............... Investment Practices and Policies; Investment Restrictions; Portfolio
                     Transactions and Brokerage
14.  ............... The Fund and Its Management; Trustees and Officers
15.  ............... The Fund and Its Management; Trustees and Officers
16.  ............... The Fund and Its Management; The Distributor; Shareholder Services;
                     Custodian and Transfer Agent; Independent Accountants
17.  ............... Portfolio Transactions and Brokerage
18.  ............... Description of Shares
19.  ............... The Distributor; Purchase of Fund Shares; Redemptions and Repurchases;
                     Financial Statements; Determination of Net Asset Value; Shareholder
                     Services
20.  ............... Dividends, Distributions and Taxes
21.  ............... The Distributor
22.  ............... Performance Information
23.  ............... Experts; Financial Statements
</TABLE>
 
PART C
 
    Information required to be included in Part C is set forth under the
appropriate item, so numbered, in Part C of this Registration Statement.
<PAGE>
   
              PROSPECTUS
              APRIL 27, 1998
    
 
   
              Dean Witter Utilities Fund (the "Fund") is an open-end,
diversified management investment company, whose investment objective is to
provide current income and long-term growth of income and capital. The Fund
seeks to achieve its investment objective by investing in equity and
fixed-income securities of utility companies. See "Investment Objective and
Policies."
    
 
   
               The Fund offers four classes of shares (each, a "Class"), each
with a different combination of sales charges, ongoing fees and other features.
The different distribution arrangements permit an investor to choose the method
of purchasing shares that the investor believes is most beneficial given the
amount of the purchase, the length of time the investor expects to hold the
shares and other relevant circumstances. (See "Purchase of Fund
Shares--Alternative Purchase Arrangements.")
    
 
   
               This Prospectus sets forth concisely the information you should
know before investing in the Fund. It should be read and retained for future
reference. Additional information about the Fund is contained in the Statement
of Additional Information, dated April 27, 1998, which has been filed with the
Securities and Exchange Commission, and which is available at no charge upon
request of the Fund at the address or telephone numbers listed on this page. The
Statement of Additional Information is incorporated herein by reference.
    
 
     DEAN WITTER DISTRIBUTORS INC.
      DISTRIBUTOR
 
      TABLE OF CONTENTS
 
   
Prospectus Summary/2
Summary of Fund Expenses/4
Financial Highlights/6
The Fund and its Management/9
Investment Objective and Policies/9
  Risk Considerations/10
Investment Restrictions/14
Purchase of Fund Shares/15
Shareholder Services/26
Redemptions and Repurchases/29
Dividends, Distributions and Taxes/30
Performance Information/31
Additional Information/31
    
 
SHARES OF THE FUND ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED
BY, ANY BANK, AND THE SHARES ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT
INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
    Dean Witter
    Utilities Fund
    Two World Trade Center
    New York, New York 10048
    (212) 392-2550 or
    (800) 869-NEWS (toll-free)
<PAGE>
PROSPECTUS SUMMARY
- --------------------------------------------------------------------------------
 
   
<TABLE>
<S>                 <C>
The                 The Fund is organized as a Trust, commonly known as a Massachusetts business trust, and is an open-end,
Fund                diversified management investment company. The Fund invests in equity and fixed-income securities of utility
                    companies.
- ------------------------------------------------------------------------------------------------------------------------------------
Shares Offered      Shares of beneficial interest with $0.01 par value (see page 31). The Fund offers four Classes of shares, each
                    with a different combination of sales charges, ongoing fees and other features (see pages 15-24).
- ------------------------------------------------------------------------------------------------------------------------------------
Minimum             The minimum initial investment for each Class is $1,000 ($100 if the account is opened through EasyInvest-SM-).
Purchase            Class D shares are only available to persons investing $5 million or more ($25 million for certain qualified
                    plans) and to certain other limited categories of investors. For the purpose of meeting the minimum $5 million
                    (or $25 million) investment for Class D shares, and subject to the $1,000 minimum initial investment for each
                    Class of the Fund, an investor's existing holdings of Class A shares and shares of funds for which Dean Witter
                    InterCapital Inc. serves as investment manager ("Dean Witter Funds") that are sold with a front-end sales
                    charge, and concurrent investments in Class D shares of the Fund and other Dean Witter Funds that are multiple
                    class funds, will be aggregated. The minimum subsequent investment is $100 (see page 15).
- ------------------------------------------------------------------------------------------------------------------------------------
Investment          The investment objective of the Fund is to provide current income and long-term growth of income and capital
Objective           (see page 9).
- ------------------------------------------------------------------------------------------------------------------------------------
Investment          Dean Witter InterCapital Inc., the Investment Manager of the Fund, and its wholly-owned subsidiary, Dean Witter
Manager             Services Company Inc., serve in various investment management, advisory, management and administrative
                    capacities to 103 investment companies and other portfolios with assets of approximately $105 billion at January
                    31, 1998.
- ------------------------------------------------------------------------------------------------------------------------------------
Management          The Investment Manager receives a monthly fee at the annual rate of 0.65% of daily net assets up to $500
Fee                 million, scaled down at various asset levels to 0.425% of the Fund's daily net assets on assets exceeding $5
                    billion (see page 9).
- ------------------------------------------------------------------------------------------------------------------------------------
Distributor and     Dean Witter Distributors Inc. (the "Distributor"). The Fund has adopted a distribution plan pursuant to Rule
Distribution Fee    12b-1 under the Investment Company Act (the "12b-1 Plan") with respect to the distribution fees paid by the
                    Class A, Class B and Class C shares of the Fund to the Distributor. The entire 12b-1 fee payable by Class A and
                    a portion of the 12b-1 fee payable by each of Class B and Class C equal to 0.25% of the average daily net assets
                    of the Class are currently each characterized as a service fee within the meaning of the National Association of
                    Securities Dealers, Inc. guidelines. The remaining portion of the 12b-1 fee, if any, is characterized as an
                    asset-based sales charge (see pages 15 and 24).
- ------------------------------------------------------------------------------------------------------------------------------------
Alternative         Four classes of shares are offered:
Purchase
Arrangements        - Class A shares are offered with a front-end sales charge, starting at 5.25% and reduced for larger purchases.
                    Investments of $1 million or more (and investments by certain other limited categories of investors) are not
                    subject to any sales charge at the time of purchase but a contingent deferred sales charge ("CDSC") of 1.0% may
                    be imposed on redemptions within one year of purchase. The Fund is authorized to reimburse the Distributor for
                    specific expenses incurred in promoting the distribution of the Fund's Class A shares and servicing shareholder
                    accounts pursuant to the Fund's 12b-1 Plan. Reimbursement may in no event exceed an amount equal to payments at
                    an annual rate of 0.25% of average daily net assets of the Class (see pages 15, 18 and 24).
</TABLE>
    
 
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                                       2
<PAGE>
- --------------------------------------------------------------------------------
   
<TABLE>
<S>                 <C>
                    - Class B shares are offered without a front-end sales charge, but will in most cases be subject to a CDSC
                    (scaled down from 5.0% to 1.0%) if redeemed within six years after purchase. The CDSC will be imposed on any
                    redemption of shares if after such redemption the aggregate current value of a Class B account with the Fund
                    falls below the aggregate amount of the investor's purchase payments made during the six years preceding the
                    redemption. A different CDSC schedule applies to investments by certain qualified plans. Class B shares are also
                    subject to a 12b-1 fee assessed at the annual rate of 1.0% of the lesser of: (a) the average daily net sales of
                    the Fund's Class B shares or (b) the average daily net assets of Class B. All shares of the Fund held prior to
                    July 28, 1997 (other than the shares held by certain employee benefit plans established by Dean Witter Reynolds
                    Inc. and its affiliate, SPS Transaction Services, Inc.) have been designated Class B shares. Shares held by
                    those employee benefit plans prior to July 28, 1997 have been designated Class D shares. Shares held before May
                    1, 1997 that have been designated Class B shares will convert to Class A shares in May, 2007. In all other
                    instances, Class B shares convert to Class A shares approximately ten years after the date of the original
                    purchase (see pages 15, 20 and 24).
                    - Class C shares are offered without a front-end sales charge, but will in most cases be subject to a CDSC of
                    1.0% if redeemed within one year after purchase. The Fund is authorized to reimburse the Distributor for
                    specific expenses incurred in promoting the distribution of the Fund's Class C shares and servicing shareholder
                    accounts pursuant to the Fund's 12b-1 Plan. Reimbursement may in no event exceed an amount equal to payments at
                    an annual rate of 1.0% of average daily net assets of the Class (see pages 15, 23 and 24).
                    - Class D shares are offered only to investors meeting an initial investment minimum of $5 million ($25 million
                    for certain qualified plans) and to certain other limited categories of investors. Class D shares are offered
                    without a front-end sales charge or CDSC and are not subject to any 12b-1 fee (see pages 15, 23 and 24).
- ------------------------------------------------------------------------------------------------------------------------------------
Dividends           Dividends from net investment income are declared and paid quarterly. Distributions from net short-term and
and                 long-term capital gains are paid at least annually. The Fund may, however, determine to retain all or part of
Capital Gains       any net long-term capital gains in any year for reinvestment. Dividends and capital gains distributions paid on
Distributions       shares of a Class are automatically reinvested in additional shares of the same Class at net asset value unless
                    the shareholder elects to receive cash. Shares acquired by dividend and distribution reinvestment will not be
                    subject to any sales charge or CDSC (see pages 26 and 30).
- ------------------------------------------------------------------------------------------------------------------------------------
Redemption          Shares are redeemable by the shareholder at net asset value less any applicable CDSC on Class A, Class B or
                    Class C shares. An account may be involuntarily redeemed if the total value of the account is less than $100 or,
                    if the account was opened through EasyInvest-SM-, if after twelve months the shareholder has invested less than
                    $1,000 in the account (see page 29).
- ------------------------------------------------------------------------------------------------------------------------------------
Special             The net asset value of the Fund's shares will fluctuate with changes in the market value of its portfolio
Risk                securities. Utilities companies have certain characteristics and risks, and developments in the utilities
Considerations      industry will affect the Fund's portfolio (see pages 10-11). The Fund may invest up to 20% of its assets in
                    foreign securities which entail additional risks. The value of utility company debt securities tends to have an
                    inverse relationship to the movement of interest rates (see pages 10-13).
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
  THE ABOVE IS QUALIFIED IN ITS ENTIRETY BY THE DETAILED INFORMATION APPEARING
         ELSEWHERE IN THE PROSPECTUS AND IN THE STATEMENT OF ADDITIONAL
                                  INFORMATION.
 
                                       3
<PAGE>
SUMMARY OF FUND EXPENSES
- --------------------------------------------------------------------------------
 
   
    The following table illustrates all expenses and fees that a shareholder of
the Fund will incur. The expenses and fees set forth in the table are based on
expenses and fees for the fiscal year ended December 31, 1997.
    
 
   
<TABLE>
<CAPTION>
                                                                                   CLASS A    CLASS B    CLASS C    CLASS D
                                                                                  ---------   -------   ---------   -------
<S>                                                                               <C>         <C>       <C>         <C>
SHAREHOLDER TRANSACTION EXPENSES
- --------------------------------------------------------------------------------
Maximum Sales Charge Imposed on Purchases (as a percentage of offering price)...   5.25%(1)    None      None        None
Sales Charge Imposed on Reinvested Dividends....................................   None        None      None        None
Maximum Contingent Deferred Sales Charge (as a percentage of original purchase
  price or redemption proceeds).................................................   None(2)     5.00%(3)  1.00%(4)    None
Redemption Fees.................................................................   None        None      None        None
Exchange Fee....................................................................   None        None      None        None
ANNUAL FUND OPERATING EXPENSES (AS A PERCENTAGE OF AVERAGE NET ASSETS)
- --------------------------------------------------------------------------------
Management Fees.................................................................   0.55%       0.55%     0.55%       0.55%
12b-1 Fees (5) (6)..............................................................   0.25%       1.00%     1.00%       None
Other Expenses..................................................................   0.12%       0.12%     0.12%       0.12%
Total Fund Operating Expenses (7)...............................................   0.92%       1.67%     1.67%       0.67%
</TABLE>
    
 
- ------------
(1) REDUCED FOR PURCHASES OF $25,000 AND OVER (SEE "PURCHASE OF FUND
    SHARES--INITIAL SALES CHARGE ALTERNATIVE--CLASS A SHARES").
 
(2) INVESTMENTS THAT ARE NOT SUBJECT TO ANY SALES CHARGE AT THE TIME OF PURCHASE
    ARE SUBJECT TO A CDSC OF 1.00% THAT WILL BE IMPOSED ON REDEMPTIONS MADE
    WITHIN ONE YEAR AFTER PURCHASE, EXCEPT FOR CERTAIN SPECIFIC CIRCUMSTANCES
    (SEE "PURCHASE OF FUND SHARES--INITIAL SALES CHARGE ALTERNATIVE--CLASS A
    SHARES").
 
(3) THE CDSC IS SCALED DOWN TO 1.00% DURING THE SIXTH YEAR, REACHING ZERO
    THEREAFTER.
 
(4) ONLY APPLICABLE TO REDEMPTIONS MADE WITHIN ONE YEAR AFTER PURCHASE (SEE
    "PURCHASE OF FUND SHARES-- LEVEL LOAD ALTERNATIVE--CLASS C SHARES").
 
(5) THE 12b-1 FEE IS ACCRUED DAILY AND PAYABLE MONTHLY. THE ENTIRE 12b-1 FEE
    PAYABLE BY CLASS A AND A PORTION OF THE 12b-1 FEE PAYABLE BY EACH OF CLASS B
    AND CLASS C EQUAL TO 0.25% OF THE AVERAGE DAILY NET ASSETS OF THE CLASS ARE
    CURRENTLY EACH CHARACTERIZED AS A SERVICE FEE WITHIN THE MEANING OF NATIONAL
    ASSOCIATION OF SECURITIES DEALERS, INC. ("NASD") GUIDELINES AND ARE PAYMENTS
    MADE FOR PERSONAL SERVICE AND/OR MAINTENANCE OF SHAREHOLDER ACCOUNTS. THE
    REMAINDER OF THE 12b-1 FEE, IF ANY, IS AN ASSET-BASED SALES CHARGE, AND IS A
    DISTRIBUTION FEE PAID TO THE DISTRIBUTOR TO COMPENSATE IT FOR THE SERVICES
    PROVIDED AND THE EXPENSES BORNE BY THE DISTRIBUTOR AND OTHERS IN THE
    DISTRIBUTION OF THE FUND'S SHARES (SEE "PURCHASE OF FUND SHARES--PLAN OF
    DISTRIBUTION").
 
(6) UPON CONVERSION OF CLASS B SHARES TO CLASS A SHARES, SUCH SHARES WILL BE
    SUBJECT TO THE LOWER 12b-1 FEE APPLICABLE TO CLASS A SHARES. NO SALES CHARGE
    IS IMPOSED AT THE TIME OF CONVERSION OF CLASS B SHARES TO CLASS A SHARES.
    CLASS C SHARES DO NOT HAVE A CONVERSION FEATURE AND, THEREFORE, ARE SUBJECT
    TO AN ONGOING 1.00% DISTRIBUTION FEE (SEE "PURCHASE OF FUND
    SHARES--ALTERNATIVE PURCHASE ARRANGEMENTS").
 
   
(7) THERE WERE NO OUTSTANDING SHARES OF CLASS A, CLASS C OR CLASS D PRIOR TO
    JULY 28, 1997. ACCORDINGLY, "TOTAL FUND OPERATING EXPENSES," AS SHOWN ABOVE
    WITH RESPECT TO THOSE CLASSES, ARE ESTIMATES BASED UPON THE SUM OF 12b-1
    FEES, MANAGEMENT FEES AND ESTIMATED "OTHER EXPENSES."
    
 
                                       4
<PAGE>
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
EXAMPLES                                            1 Year    3 Years   5 Years   10 Years
- --------------------------------------------------  -------   -------   -------   ---------
<S>                                                 <C>       <C>       <C>       <C>
You would pay the following expenses on a $1,000
 investment assuming (1) a 5% annual return and
 (2) redemption at the end of each time period:
    Class A.......................................    $ 61      $ 80      $101        $159
    Class B.......................................    $ 67      $ 83      $111        $197
    Class C.......................................    $ 27      $ 53      $ 91        $197
    Class D.......................................    $  7      $ 21      $ 37        $ 83
 
You would pay the following expenses on the same
 $1,000 investment assuming no redemption at the
 end of the period:
    Class A.......................................    $ 61      $ 80      $101        $159
    Class B.......................................    $ 17      $ 53      $ 91        $197
    Class C.......................................    $ 17      $ 53      $ 91        $197
    Class D.......................................    $  7      $ 21      $ 37        $ 83
</TABLE>
    
 
    THE ABOVE EXAMPLES SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES OF EACH CLASS MAY BE GREATER OR
LESS THAN THOSE SHOWN.
 
    The purpose of this table is to assist the investor in understanding the
various costs and expenses that an investor in the Fund will bear directly or
indirectly. For a more complete description of these costs and expenses, see
"The Fund and its Management," "Purchase of Fund Shares--Plan of Distribution"
and "Redemptions and Repurchases."
 
    Long-term shareholders of Class B and Class C may pay more in sales charges,
including distribution fees, than the economic equivalent of the maximum
front-end sales charges permitted by the NASD.
 
                                       5
<PAGE>
FINANCIAL HIGHLIGHTS
- --------------------------------------------------------------------------------
 
   
    The following per share data and ratios for a share of beneficial interest
outstanding throughout each period have been audited by Price Waterhouse LLP,
independent accountants. The financial highlights should be read in conjunction
with the financial statements, and notes thereto and the unqualified report of
the independent accountants which are contained in the Statement of Additional
Information. Further information about the performance of the Fund is contained
in the Fund's Annual Report to Shareholders, which may be obtained without
charge upon request to the Fund.
    
 
   
<TABLE>
<CAPTION>
                                                                                                                FOR THE PERIOD
                                                    FOR THE YEAR ENDED DECEMBER 31,                             APRIL 29, 1988*
                            -------------------------------------------------------------------------------         THROUGH
CLASS B SHARES              1997**++  1996     1995     1994     1993     1992     1991     1990     1989      DECEMBER 31, 1988
                            -------  -------  -------  -------  -------  -------  -------  -------  -------    -----------------
<S>                         <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>        <C>
PER SHARE OPERATING
 PERFORMANCE:
Net asset value, beginning
 of period................  $15.22    $15.15   $12.30   $14.34   $13.37   $12.93   $11.48   $12.22   $10.41           $10.00
                            -------  -------  -------  -------  -------  -------  -------  -------  -------          -------
Net investment income.....    0.50      0.56     0.58     0.63     0.61     0.63     0.65     0.65     0.63             0.40
Net realized and
 unrealized gain (loss)...    3.28      0.16     2.85    (2.04)    1.09     0.47     1.45    (0.71)    1.86             0.38
                            -------  -------  -------  -------  -------  -------  -------  -------  -------          -------
Total from investment
 operations...............    3.78      0.72     3.43    (1.41)    1.70     1.10     2.10    (0.06)    2.49             0.78
                            -------  -------  -------  -------  -------  -------  -------  -------  -------          -------
Less dividends and
 distributions from:
  Net investment income...   (0.51 )   (0.58)   (0.58)   (0.61)   (0.61)   (0.63)   (0.65)   (0.65)   (0.67)           (0.36)
  Net realized gain.......   (1.45 )   (0.07)      --    (0.02)   (0.12)   (0.03)      --    (0.03)   (0.01)           (0.01)
                            -------  -------  -------  -------  -------  -------  -------  -------  -------          -------
Total dividends and
 distributions............   (1.96 )   (0.65)   (0.58)   (0.63)   (0.73)   (0.66)   (0.65)   (0.68)   (0.68)           (0.37)
                            -------  -------  -------  -------  -------  -------  -------  -------  -------          -------
Net asset value, end of
 period...................  $17.04   $ 15.22  $ 15.15  $ 12.30  $ 14.34  $ 13.37  $ 12.93  $ 11.48  $ 12.22        $   10.41
                            -------  -------  -------  -------  -------  -------  -------  -------  -------          -------
                            -------  -------  -------  -------  -------  -------  -------  -------  -------          -------
TOTAL INVESTMENT
 RETURN+..................  25.79%     4.99%   28.42%  (9.90)%   12.79%    8.75%   18.89%  (0.27)%   24.51%            7.90%(1)
RATIOS TO AVERAGE NET
 ASSETS:
Expenses..................   1.67%     1.64%    1.65%    1.64%    1.46%    1.59%    1.59%    1.67%    1.68%            1.84%(2)
Net investment income.....   3.15%     3.63%    4.19%    4.67%    4.32%    5.05%    5.58%    5.85%    6.07%            6.69%(2)
SUPPLEMENTAL DATA:
Net assets, end of period
 (in millions)............  $2,430    $2,677   $3,321   $2,827   $3,881   $2,926   $1,959   $1,369   $1,131             $458
Portfolio turnover rate...      6%        7%       9%      11%      16%      14%      13%      13%      25%              12%(1)
Average commission rate
 paid.....................  $0.0555  $0.0547       --       --       --       --       --       --       --               --
</TABLE>
    
 
- ---------------
   
 * COMMENCEMENT OF OPERATIONS.
    
   
 ** PRIOR TO JULY 28, 1997, THE FUND ISSUED ONE CLASS OF SHARES. ALL SHARES OF
    THE FUND HELD PRIOR TO THAT DATE, OTHER THAN SHARES HELD BY CERTAIN EMPLOYEE
    BENEFIT PLANS ESTABLISHED BY DEAN WITTER REYNOLDS INC. AND ITS AFFILIATE,
    SPS TRANSACTION SERVICES, INC., HAVE BEEN DESIGNATED CLASS B SHARES. SHARES
    HELD BY THOSE EMPLOYEE BENEFIT PLANS PRIOR TO JULY 28, 1997 HAVE BEEN
    DESIGNATED CLASS D SHARES.
    
   
 ++ THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
    OUTSTANDING DURING THE PERIOD.
    
   
 + DOES NOT REFLECT THE DEDUCTION OF SALES CHARGE. CALCULATED BASED ON THE NET
   ASSET VALUE AS OF THE LAST BUSINESS DAY OF THE PERIOD.
    
   
(1) NOT ANNUALIZED.
    
   
(2) ANNUALIZED.
    
 
                                       6
<PAGE>
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                         FOR THE PERIOD
                                                                         JULY 28, 1997*
                                                                            THROUGH
                                                                          DECEMBER 31,
CLASS A SHARES                                                               1997++
                                                                        ----------------
<S>                                                                     <C>
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 15.89
                                                                            -------
Net investment loss...................................................         0.27
Net realized and unrealized gain......................................         2.52
                                                                            -------
Total from investment operations......................................         2.79
                                                                            -------
Less dividends and distributions from:
   Net investment income..............................................        (0.35)
   Net realized gain..................................................        (1.32)
                                                                            -------
Total dividends and distributions.....................................        (1.67)
                                                                            -------
Net asset value, end of period........................................      $ 17.01
                                                                            -------
                                                                            -------
TOTAL INVESTMENT RETURN+..............................................        18.06%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         0.92%(2)
Net investment income.................................................         4.05%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................       $3,581
Portfolio turnover rate...............................................            6%
Average commission rate paid..........................................      $0.0555
CLASS C SHARES
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 15.89
                                                                            -------
Net investment income.................................................         0.22
Net realized and unrealized gain......................................         2.51
                                                                            -------
Total from investment operations......................................         2.73
                                                                            -------
Less dividends and distributions from:
   Net investment income..............................................        (0.24)
   Net realized gain..................................................        (1.32)
                                                                            -------
Total dividends and distributions.....................................        (1.56)
                                                                            -------
Net asset value, end of period........................................      $ 17.06
                                                                            -------
                                                                            -------
TOTAL INVESTMENT RETURN+..............................................        17.67%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         1.69%(2)
Net investment income.................................................         3.14%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................       $1,405
Portfolio turnover rate...............................................            6%
Average commission rate paid..........................................      $0.0555
</TABLE>
    
 
- -------------
   
 * THE DATE SHARES WERE FIRST ISSUED.
    
   
 ++ THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
    OUTSTANDING DURING THE PERIOD.
    
   
 + DOES NOT REFLECT THE DEDUCTION OF SALES CHARGE. CALCULATED BASED ON THE NET
   ASSET VALUE AS OF THE LAST BUSINESS DAY OF THE PERIOD.
    
   
(1) NOT ANNUALIZED.
    
   
(2) ANNUALIZED.
    
 
                                       7
<PAGE>
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                                         FOR THE PERIOD
                                                                         JULY 28, 1997*
                                                                            THROUGH
                                                                          DECEMBER 31,
CLASS D SHARES                                                                1997
                                                                        ----------------
<S>                                                                     <C>
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 15.89
                                                                            -------
Net investment income.................................................         0.22
Net realized and unrealized gain......................................         2.58
                                                                            -------
Total from investment operations......................................         2.80
                                                                            -------
Less dividends and distributions from:
   Net investment income..............................................        (0.38)
   Net realized gain..................................................        (1.32)
                                                                            -------
Total dividends and distributions.....................................        (1.70)
                                                                            -------
Net asset value, end of period........................................      $ 16.99
                                                                            -------
                                                                            -------
 
TOTAL INVESTMENT RETURN+..............................................        18.13%(1)
 
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         0.67%(2)
Net investment income.................................................         4.21%(2)
 
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................      $17,106
Portfolio turnover rate...............................................            6%
Average commission rate paid..........................................      $0.0555
</TABLE>
    
 
- -------------
   
 * THE DATE SHARES WERE FIRST ISSUED. SHAREHOLDERS WHO HELD SHARES OF THE FUND
   PRIOR TO JULY 28, 1997 (THE DATE THE FUND CONVERTED TO A MULTIPLE CLASS SHARE
   STRUCTURE) SHOULD REFER TO THE FINANCIAL HIGHLIGHTS OF CLASS B TO OBTAIN THE
   HISTORICAL PER SHARE DATA AND RATIO INFORMATION OF THEIR SHARES.
    
 
   
 ++ THE PER SHARE AMOUNTS WERE COMPUTED USING AN AVERAGE NUMBER OF SHARES
    OUTSTANDING DURING THE PERIOD.
    
 
   
 + CALCULATED BASED ON THE NET ASSET VALUE AS OF THE LAST BUSINESS DAY OF THE
   PERIOD.
    
 
   
(1) NOT ANNUALIZED
    
 
   
(2) ANNUALIZED.
    
 
                                       8
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
    Dean Witter Utilities Fund (the "Fund") is an open-end, diversified
management investment company. The Fund is a trust of the type commonly known as
a "Massachusetts business trust" and was organized under the laws of
Massachusetts on December 8, 1987.
 
    Dean Witter InterCapital Inc. ("InterCapital" or the "Investment Manager"),
whose address is Two World Trade Center, New York, New York 10048, is the Fund's
Investment Manager. The Investment Manager, which was incorporated in July,
1992, is a wholly-owned subsidiary of Morgan Stanley, Dean Witter Discover & Co.
("MSDWD"), a preeminent global financial services firm that maintains leading
market positions in each of three primary businesses--securities, asset
management and credit services.
 
   
    InterCapital and its wholly-owned subsidiary, Dean Witter Services Company
Inc., serve in various investment management, advisory, management and
administrative capacities to 103 investment companies, 29 of which are listed on
the New York Stock Exchange, with combined total assets of approximately $101
billion at January 31, 1998. The Investment Manager also manages and advises
portfolios of pension plans, other institutions and individuals which aggregated
approximately $4.0 billion at such date.
    
 
    The Fund has retained the Investment Manager to provide administrative
services, manage its business affairs and manage the investment of the Fund's
assets. InterCapital has retained Dean Witter Services Company Inc. to perform
the aforementioned administrative services for the Fund.
 
    The Fund's Trustees review the various services provided by or under the
direction of the Investment Manager to ensure that the Fund's general investment
policies and programs are being properly carried out and that administrative
services are being provided to the Fund in a satisfactory manner.
 
   
    As full compensation for the services and facilities furnished to the Fund
and for expenses of the Fund assumed by the Investment Manager, the Fund pays
the Investment Manager monthly compensation calculated daily by applying the
following annual rates to the net assets of the Fund as of the close of each
business day: 0.65% of the portion of the daily net assets not exceeding $500
million, scaled down at various asset levels to 0.425% of the portion of daily
net assets exceeding $5 billion. For the fiscal year ended December 31, 1997,
the Fund accrued total compensation to the Investment Manager amounting to 0.55%
of the Fund's average daily net assets and the total expenses of Class B
amounted to 1.67% of the Fund's average daily net assets of Class B. Shares of
Class A, Class C and Class D were first issued on July 28, 1997. The expenses of
the Fund include: the fee of the Investment Manager; the fee pursuant to the
Plan of Distribution (see "Purchase of Fund Shares"); taxes; transfer agent,
custodian and auditing fees; certain legal fees; and printing and other expenses
relating to the Fund's operations which are not expressly assumed by the
Investment Manager under its Investment Management Agreement with the Fund.
    
 
INVESTMENT OBJECTIVE AND POLICIES
- --------------------------------------------------------------------------------
 
   
    The investment objective of the Fund is to provide current income and
long-term growth of income and capital. This objective is fundamental and may
not be changed without shareholder approval. There can be no assurance that the
investment objective will be achieved. The Fund seeks to achieve its investment
objective by investing primarily in equity and fixed-income securities of
utility companies. The term "utility companies" includes companies engaged in
the manufacture,
    
 
                                       9
<PAGE>
   
production, generation, transmission, sale and distribution of water, gas and
electric energy, companies providing sanitary services, airport, seaport and
toll road companies or who manufacture or supply equipment for any of the
foregoing companies, as well as companies engaged in the communications field
and the companies that manufacture or supply equipment for such companies,
including telephone, telegraph, satellite, cable, micro-wave, radio-telephone,
computer, mobile communication and cellular paging, electronic mail, videotext
and other new or emerging technology companies.
    
 
   
    The Fund may invest in both traditional regulated utility companies (also
referred to herein as companies engaged in the "public utilities industry") that
are distinguished from industrial companies primarily because the rates they may
charge their customers are subject to review and limitation by governmental
regulatory commissions and utility companies in sectors of the utilities
industry that have experienced full or partial deregulation in recent years.
Because of trends toward deregulation and the evolution of independent power
producers as well as new entrants into the field of telecommunications,
non-regulated providers of utility services have become a significant part of
their respective industries. See "Utilities Industry" below.
    
 
   
    The Fund invests in both equity securities (common stocks and securities
convertible into common stock) and fixed income securities (bonds and preferred
stock) of utility companies. The Fund does not have any set policies to
concentrate within any particular segment of the utilities industry.
    
 
    Fixed-income securities in which the Fund may invest are debt securities and
preferred stocks, which are rated at the time of purchase Baa or better by
Moody's Investors Service, Inc. ("Moody's") or BBB or better by Standard &
Poor's Corporation ("S&P"), or which, if unrated, are deemed to be of comparable
quality by the Fund's Trustees. The Fund may also purchase equity and
fixed-income securities issued by foreign issuers.
 
    Investments in fixed-income securities rated either BBB by S&P or Baa by
Moody's (the lowest credit ratings designated "investment grade") may have
speculative characteristics and, therefore, changes in economic conditions or
other circumstances are more likely to weaken their capacity to make principal
and interest payments than would be the case with investments in securities with
higher credit ratings. If a fixed-income security held by the Fund is rated BBB
or Baa and is subsequently downgraded by a rating agency, the Fund will retain
such security in its portfolio until the Investment Manager determines that it
is practicable to sell the security without undue market or tax consequences to
the Fund. In the event that such downgraded securities constitute 5% or more of
the Fund's total assets, the Investment Manager will sell immediately securities
sufficient to reduce the total to below 5%.
 
   
    While the Fund will invest primarily in the securities of utility companies,
under ordinary circumstances it may invest up to 35% of its total assets in U.S.
Government securities (securities issued or guaranteed as to principal and
interest by the United States or its agencies and instrumentalities), money
market instruments and repurchase agreements, as described below. U.S.
Government securities in which the Fund may invest include zero coupon
securities.
    
 
    There may be periods during which, in the opinion of the Investment Manager,
market conditions warrant reduction of some or all of the Fund's securities
holdings. During such periods, the Fund may adopt a temporary "defensive"
posture in which greater than 35% of its net assets are invested in cash or
money market instruments.
 
RISK CONSIDERATIONS
 
    REPURCHASE AGREEMENTS.  The Fund may enter into repurchase agreements, which
may be viewed as a type of secured lending by the Fund, and which typically
involve the acquisition by the Fund of debt securities from a selling financial
institution such as a bank, savings and loan association
 
                                       10
<PAGE>
or broker-dealer. The agreement provides that the Fund will sell back to the
institution, and that the institution will repurchase the underlying security at
a specified price and at a fixed time in the future, usually not more than seven
days from the date of purchase. While repurchase agreements involve certain
risks not associated with direct investments in debt securities, the Fund
follows procedures designed to minimize those risks. These procedures include
effecting repurchase transactions only with large, well-capitalized and
well-established financial institutions whose financial condition will be
continually monitored by the Investment Manager subject to procedures
established by the Board of Trustees of the Fund.
 
    PRIVATE PLACEMENTS.  The Fund may invest up to 5% of its total assets in
securities which are subject to restrictions on resale because they have not
been registered under the Securities Act of 1933, as amended (the "Securities
Act"), or which are otherwise not readily marketable. (Securities eligible for
resale pursuant to Rule 144A under the Securities Act, and determined to be
liquid pursuant to the procedures discussed in the following paragraph, are not
subject to the foregoing restriction). These securities are generally referred
to as private placements or restricted securities. Limitations on the resale of
such securities may have an adverse effect on their marketability, and may
prevent the Fund from disposing of them promptly at reasonable prices. The Fund
may have to bear the expense of registering such securities for resale and the
risk of substantial delays in effecting such registration.
 
    The Securities and Exchange Commission has adopted Rule 144A under the
Securities Act, which permits the Fund to sell restricted securities to
qualified institutional buyers without limitation. The Investment Manager,
pursuant to procedures adopted by the Trustees of the Fund, will make a
determination as to the liquidity of each restricted security purchased by the
Fund. If a restricted security is determined to be "liquid," such security will
not be included within the category "illiquid securities," which under current
policy may not exceed 10% of the Fund's net assets. However, investing in Rule
144A securities could have the effect of increasing the level of Fund
illiquidity to the extent the Fund, at a particular point in time, may be unable
to find qualified institutional buyers interested in purchasing securities.
 
    ZERO COUPON SECURITIES.  A portion of the fixed-income securities purchased
by the Fund may be zero coupon securities. Such securities are purchased at a
discount from their face amount, giving the purchaser the right to receive their
full value at maturity. The interest earned on such securities is, implicitly,
automatically compounded and paid out at maturity. While such compounding at a
constant rate eliminates the risk of receiving lower yields upon reinvestment of
interest if prevailing interest rates decline, the owner of a zero coupon
security will be unable to participate in higher yields upon reinvestment of
interest received on interest-paying securities if prevailing interest rates
rise.
 
    A zero coupon security pays no interest to its holder during its life.
Therefore, to the extent the Fund invests in zero coupon securities, it will not
receive current cash available for distribution to shareholders. In addition,
zero coupon securities are subject to substantially greater price fluctuations
during periods of changing prevailing interest rates than are comparable
securities which pay interest on a current basis. Current federal tax law
requires that a holder (such as the Fund) of a zero coupon security accrue a
portion of the discount at which the security was purchased as income each year
even though the Fund receives no interest payments in cash on the security
during the year.
 
    WHEN-ISSUED AND DELAYED DELIVERY SECURITIES AND FORWARD COMMITMENTS.  From
time to time, in the ordinary course of business, the Fund may purchase
securities on a when-issued or delayed delivery basis or may purchase or sell
securities on a forward commitment basis. When such transactions are negotiated,
the price is fixed at the time of the commitment, but delivery and payment can
take
 
                                       11
<PAGE>
place a month or more after the date of the commitment. There is no overall
limit on the percentage of the Fund's assets which may be committed to the
purchase of securities on a when-issued, delayed delivery or forward commitment
basis. An increase in the percentage of the Fund's assets committed to the
purchase of securities on a when-issued, delayed delivery or forward commitment
basis may increase the volatility of the Fund's net asset value.
 
    WHEN, AS AND IF ISSUED SECURITIES.  The Fund may purchase securities on a
"when, as and if issued" basis under which the issuance of the security depends
upon the occurrence of a subsequent event, such as approval of a merger,
corporate reorganization, leveraged buyout or debt restructuring. If the
anticipated event does not occur and the securities are not issued, the Fund
will have lost an investment opportunity. There is no overall limit on the
percentage of the Fund's assets which may be committed to the purchase of
securities on a "when, as and if issued" basis. An increase in the percentage of
the Fund's assets committed to the purchase of securities on a "when, as and if
issued" basis may increase the volatility of the Fund's net asset value.
 
    FOREIGN SECURITIES.  The Fund may invest up to 20% of the value of its total
assets, at the time of purchase, in securities issued by foreign issuers, with a
maximum of 10% of the value of its total assets, at the time of purchase,
invested in such securities that are not American Depository Receipts (see
below). Foreign securities investments may be affected by changes in currency
rates or exchange control regulations, changes in governmental administration or
economic or monetary policy (in the United States and abroad) or changed
circumstances in dealings between nations. Fluctuations in the relative rates of
exchange between the currencies of different nations will affect the value of
the Fund's investments denominated in foreign currency. Changes in foreign
currency exchange rates relative to the U.S. dollar will affect the U.S. dollar
value of the Fund's assets denominated in that currency and thereby impact upon
the Fund's total return on such assets.
 
    Investments in foreign securities will also occasion risks relating to
political and economic developments abroad, including the possibility of
expropriations or confiscatory taxation, limitations on the use or transfer of
Fund assets and any effects of foreign social, economic or political
instability. Foreign companies are not subject to the regulatory requirements of
U.S. companies and, as such, there may be less publicly available information
about such companies. Moreover, foreign companies are not subject to uniform
accounting, auditing and financial reporting standards and requirements
comparable to those applicable to U.S. companies. Finally, in the event of a
default of any foreign debt obligations, it may be more difficult for the Fund
to obtain or enforce a judgment against the issuers of such securities.
 
    Securities of foreign issuers may be less liquid than comparable securities
of U.S. issuers and, as such, their price changes may be more volatile.
Furthermore, foreign exchanges and broker-dealers are generally subject to less
government and exchange scrutiny and regulation than their American
counterparts. Brokerage commissions, dealer concessions and other transaction
costs may be higher on foreign markets than in the U.S. In addition, differences
in clearance and settlement procedures on foreign markets may occasion delays in
settlements of the Fund's trades effected in such markets. As such, the
inability to dispose of portfolio securities due to settlement delays could
result in losses to the Fund due to subsequent declines in value of such
securities and the inability of the Fund to make intended security purchases due
to settlement problems could result in a failure of the Fund to make potentially
advantageous investments. Investments in certain issuers may be speculative due
to certain political risks and may be subject to substantial price fluctuations.
 
    AMERICAN DEPOSITORY RECEIPTS.  The Fund may invest in securities of foreign
issuers in the form
 
                                       12
<PAGE>
of American Depository Receipts (ADRs), including ADRs sponsored by persons
other than the underlying issuers ("unsponsored ADRs"). ADRs are receipts
typically issued by a United States bank or trust company evidencing ownership
of the underlying securities. Generally, ADRs, in registered form, are designed
for use in the United States securities markets. Generally, issuers of the stock
of unsponsored ADRs are not obligated to distribute material information in the
United States and, therefore, there may not be a correlation between such
information and the market value of such ADRs.
 
   
    YEAR 2000.  The investment management services provided to the Fund by the
Investment Manager and the services provided to shareholders by the Distributor
and the Transfer Agent depend on the smooth functioning of their computer
systems. Many computer software systems in use today cannot recognize the year
2000, but revert to 1900 or some other date, due to the manner in which dates
were encoded and calculated. That failure could have a negative impact on the
handling of securities trades, pricing and account services. The Investment
Manager, the Distributor and the Transfer Agent have been actively working on
necessary changes to their own computer systems to prepare for the year 2000 and
expect that their systems will be adapted before that date, but there can be no
assurance that they will be successful, or that interaction with other
non-complying computer systems will not impair their services at that time.
    
 
   
UTILITIES INDUSTRY
    
 
   
    Most traditional utility companies have certain particular characteristics
and risks. Unlike industrial companies or fully or partially deregulated and
unregulated utility companies, the rates which traditional regulated utility
companies may charge their customers generally are subject to review and
limitation by governmental regulatory commissions. Although rate changes of a
utility usually fluctuate in approximate correlation with financing costs, due
to political and regulatory factors rate changes ordinarily occur only following
a delay after the changes in financing costs. This factor will tend to favorably
affect a regulated utility company's earnings and dividends in times of
decreasing costs, but conversely will tend to adversely affect earnings and
dividends when costs are rising. In addition, the value of regulated utility
debt securities (and, to a lesser extent, equity securities) tends to have an
inverse relationship to the movement of interest rates. In addition to
traditional regulated utility companies, the Fund may invest in utility
companies that have experienced full or partial deregulation in recent years.
These utility companies are frequently more similar to industrial companies in
that they are subject to greater competition and have been permitted by
regulators to diversify outside of their original geographic regions and their
traditional lines of business. These opportunities may permit certain utility
companies to earn more than their traditional regulated rates of return. Some
companies, however, may be forced to defend their core business and may be less
profitable.
    
 
   
    Among the risks that may affect utility companies are the following: risks
of increases in fuel and other operating costs; the high cost of borrowing to
finance capital construction during inflationary periods; restrictions on
operations and increased costs and delays associated with compliance with
environmental and nuclear safety regulations; the difficulties involved in
obtaining natural gas for resale or fuel for generating electricity at
reasonable prices; the risks in connection with the construction and operation
of nuclear power plants; the effects of energy conservation and the effects of
regulatory changes, such as the possible adverse effects on profits of recent
increased competition among telecommunications companies and the uncertainties
resulting from such companies' diversification into new domestic and
international businesses, as well as agreements by many such companies linking
future rate increases to inflation or other factors not directly related to the
actual operating profits of the enterprise.
    
 
                                       13
<PAGE>
PORTFOLIO MANAGEMENT
 
   
    The Fund's portfolio is actively managed by its Investment Manager with a
view to achieving the Fund's investment objective. In determining which
securities to purchase for the Fund or hold in the Fund's portfolio, the
Investment Manager will rely on information from various sources, including
research, analysis and appraisals of brokers and dealers, including Dean Witter
Reynolds Inc. ("DWR"), Morgan Stanley & Co. Incorporated and other broker-dealer
affiliates of InterCapital, and others regarding economic developments and
interest rate trends, and the Investment Manager's own analysis of factors it
deems relevant. The Fund's portfolio is managed within InterCapital's Growth and
Income Group, which manages 24 equity funds and fund portfolios with
approximately $30 billion in assets as of January 31, 1998. Edward F. Gaylor,
Senior Vice President of InterCapital and a member of InterCapital's Growth and
Income Group, has been the primary portfolio manager of the Fund since its
inception and has been a portfolio manager at InterCapital for over five years.
    
 
   
    Orders for transactions in portfolio securities and commodities are placed
for the Fund with a number of brokers and dealers, including DWR, Morgan Stanley
& Co. Incorporated and other brokers and dealers that are affiliates of the
Investment Manager. The Fund may incur brokerage commissions on transactions
conducted through such affiliates. Pursuant to an order of the Securities and
Exchange Commission, the Fund may effect principal transactions in certain money
market instruments with DWR.
    
 
    Except as specifically noted, the Fund's investment policies and practices
discussed above are not fundamental policies of the Fund and, as such, may be
changed without shareholder approval.
 
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
    The investment restrictions listed below are among the restrictions which
have been adopted by the Fund as fundamental policies. A fundamental policy may
not be changed without the vote of the Fund's shareholders.
 
    The Fund may not:
 
   1. Invest more than 5% of the value of its total assets in the securities of
any one issuer (other than obligations issued or guaranteed by the United States
Government, its agencies or instrumentalities).
 
   2. Purchase more than 10% of all outstanding voting securities or any class
of securities of any one issuer.
 
   3. Invest 25% or more of the value of its total assets in securities of
issuers in any one industry, except that the Fund will concentrate in the public
utilities industry. This restriction does not apply to obligations issued or
guaranteed by the United States Government or its agencies or instrumentalities.
 
   4. Invest more than 10% of its total assets in "illiquid securities"
(securities for which market quotations are not readily available) and
repurchase agreements which have a maturity of longer than seven days.
 
   5. Invest more than 5% of the value of its total assets in securities of
issuers having a record, together with predecessors, of less than three years of
continuous operation. This restriction shall not apply to any obligation issued
or guaranteed by the United States Government, its agencies or
instrumentalities.
 
    Notwithstanding any other investment policy or restriction, the Fund may
seek to achieve its investment objective by investing all or substantially all
of its assets in another investment company having substantially the same
investment objective and policies as the Fund.
 
                                       14
<PAGE>
PURCHASE OF FUND SHARES
- --------------------------------------------------------------------------------
 
    The Fund offers each Class of its shares for sale to the public on a
continuous basis. Pursuant to a Distribution Agreement between the Fund and Dean
Witter Distributors Inc. (the "Distributor"), an affiliate of the Investment
Manager, shares of the Fund are distributed by the Distributor and offered by
DWR and other brokers and dealers who have entered into agreements with the
Distributor ("Selected Broker-Dealers"). The principal executive office of the
Distributor is located at Two World Trade Center, New York, New York 10048.
 
   
    The Fund offers four classes of shares (each, a "Class"). Class A shares are
sold to investors with an initial sales charge that declines to zero for larger
purchases; however, Class A shares sold without an initial sales charge are
subject to a contingent deferred sales charge ("CDSC") of 1.0% if redeemed
within one year of purchase, except for certain specific circumstances. Class B
shares are sold without an initial sales charge but are subject to a CDSC
(scaled down from 5.0% to 1.0%) payable upon most redemptions within six years
after purchase. (Class B shares purchased by certain qualified plans are subject
to a CDSC scaled down from 2.0% to 1.0% if redeemed within three years after
purchase.) Class C shares are sold without an initial sales charge but are
subject to a CDSC of 1.0% on most redemptions made within one year after
purchase. Class D shares are sold without an initial sales charge or CDSC and
are available only to investors meeting an initial investment minimum of $5
million, ($25 million for certain qualified plans), and to certain other limited
categories of investors. At the discretion of the Board of Trustees of the Fund,
Class A shares may be sold to categories of investors in addition to those set
forth in this prospectus at net asset value without a front-end sales charge,
and Class D shares may be sold to certain other categories of investors, in each
case as may be described in the then current prospectus of the Fund. See
"Alternative Purchase Arrangements-- Selecting a Particular Class" for a
discussion of factors to consider in selecting which Class of shares to
purchase.
    
 
   
    The minimum initial purchase is $1,000 for each Class of shares, although
Class D shares are only available to persons investing $5 million ($25 million
for certain qualified plans) or more and to certain other limited categories of
investors. For the purpose of meeting the minimum $5 million (or $25 million)
initial investment for Class D shares, and subject to the $1,000 minimum initial
investment for each Class of the Fund, an investor's existing holdings of Class
A shares of the Fund and other Dean Witter Funds that are multiple class funds
("Dean Witter Multi-Class Funds") and shares of Dean Witter Funds sold with a
front-end sales charge ("FSC Funds") and concurrent investments in Class D
shares of the Fund and other Dean Witter Multi-Class Funds will be aggregated.
Subsequent purchases of $100 or more may be made by sending a check, payable to
Dean Witter Utilities Fund, directly to Dean Witter Trust FSB (the "Transfer
Agent" or "DWT") at P.O. Box 1040, Jersey City, NJ 07303 or by contacting an
account executive of DWR or other Selected Broker-Dealer. When purchasing shares
of the Fund, investors must specify whether the purchase is for Class A, Class
B, Class C or Class D shares. If no Class is specified, the Transfer Agent will
not process the transaction until the proper Class is identified. The minimum
initial purchase in the case of investments through EasyInvest-SM-, an automatic
purchase plan (see "Shareholder Services"), is $100, provided that the schedule
of automatic investments will result in investments totalling $1,000 within the
first twelve months. The minimum initial purchase in the case of an "Education
IRA" is $500, if the Distributor has reason to believe that additional
investments will increase the investment in the account to $1,000 within three
years. In the case of investments pursuant to (i) Systematic Payroll Deduction
Plans (including Individual Retirement Plans), (ii) the InterCapital mutual fund
asset allocation program
    
 
                                       15
<PAGE>
   
and (iii) fee-based programs approved by the Distributor, pursuant to which
participants pay an asset based fee for services in the nature of investment
advisory or administrative services, the Fund, in its discretion, may accept
investments without regard to any minimum amounts which would otherwise be
required, provided, in the case of Systematic Payroll Deduction Plans, that the
Distributor has reason to believe that additional investments will increase the
investment in all accounts under such Plans to at least $1,000. Certificates for
shares purchased will not be issued unless requested by the shareholder in
writing to the Transfer Agent.
    
 
    Shares of the Fund are sold through the Distributor on a normal three
business day settlement basis; that is, payment is due on the third business day
(settlement date) after the order is placed with the Distributor. Shares of the
Fund purchased through the Distributor are entitled to any dividends declared
beginning on the next business day following settlement date. Since DWR and
other Selected Broker-Dealers forward investors' funds on settlement date, they
will benefit from the temporary use of the funds if payment is made prior
thereto. As noted above, orders placed directly with the Transfer Agent must be
accompanied by payment. Investors will be entitled to receive income dividends
and capital gains distributions if their order is received by the close of
business on the day prior to the record date for such dividends and
distributions. Sales personnel of a Selected Broker-Dealer are compensated for
selling shares of the Fund by the Distributor or any of its affiliates and/or
the Selected Broker-Dealer. In addition, some sales personnel of the Selected
Broker-Dealer will receive various types of non-cash compensation as special
sales incentives, including trips, educational and/or business seminars and
merchandise. The Fund and the Distributor reserve the right to reject any
purchase orders.
 
ALTERNATIVE PURCHASE ARRANGEMENTS
 
    The Fund offers several Classes of shares to investors designed to provide
them with the flexibility of selecting an investment best suited to their needs.
The general public is offered three Classes of shares: Class A shares, Class B
shares and Class C shares, which differ principally in terms of sales charges
and rate of expenses to which they are subject. A fourth Class of shares, Class
D shares, is offered only to limited categories of investors (see "No Load
Alternative--Class D Shares" below).
 
    Each Class A, Class B, Class C or Class D share of the Fund represents an
identical interest in the investment portfolio of the Fund except that Class A,
Class B and Class C shares bear the expenses of the ongoing shareholder service
fees, Class B and Class C shares bear the expenses of the ongoing distribution
fees and Class A, Class B and Class C shares which are redeemed subject to a
CDSC bear the expense of the additional incremental distribution costs resulting
from the CDSC applicable to shares of those Classes. The ongoing distribution
fees that are imposed on Class A, Class B and Class C shares will be imposed
directly against those Classes and not against all assets of the Fund and,
accordingly, such charges against one Class will not affect the net asset value
of any other Class or have any impact on investors choosing another sales charge
option. See "Plan of Distribution" and "Redemptions and Repurchases."
 
    Set forth below is a summary of the differences between the Classes and the
factors an investor should consider when selecting a particular Class. This
summary is qualified in its entirety by the detailed discussion of each Class
that follows this summary.
 
    CLASS A SHARES.  Class A shares are sold at net asset value plus an initial
sales charge of up to 5.25%. The initial sales charge is reduced for certain
purchases. Investments of $1 million or more (and investments by certain other
limited categories of investors) are not subject to any sales charges at the
time of purchase but are subject to a CDSC of 1.0% on redemptions made within
one year after purchase, except for certain specific circumstances. Class A
shares are also subject to a 12b-1 fee of up to 0.25% of the average daily net
assets of the Class.
 
                                       16
<PAGE>
See "Initial Sales Charge Alternative--Class A Shares."
 
   
    CLASS B SHARES.  Class B shares are offered at net asset value with no
initial sales charge but are subject to a CDSC (scaled down from 5.0% to 1.0%)
if redeemed within six years of purchase. (Class B shares purchased by certain
qualified plans are subject to a CDSC scaled down from 2.0% to 1.0% if redeemed
within three years after purchase.) This CDSC may be waived for certain
redemptions. Class B shares are also subject to an annual 12b-1 fee of 1.0% of
the lesser of: (a) the average daily aggregate gross sales of the Fund's Class B
shares since the inception of the Fund (not including reinvestments of dividends
or capital gains distributions), less the average daily aggregate net asset
value of the Fund's Class B shares redeemed since the Fund's inception upon
which a CDSC has been imposed or waived, or (b) the average daily net assets of
Class B. The Class B shares' distribution fee will cause that Class to have
higher expenses and pay lower dividends than Class A or Class D shares.
    
 
    After approximately ten (10) years, Class B shares will convert
automatically to Class A shares of the Fund, based on the relative net asset
values of the shares of the two Classes on the conversion date. In addition, a
certain portion of Class B shares that have been acquired through the
reinvestment of dividends and distributions will be converted at that time. See
"Contingent Deferred Sales Charge Alternative--Class B Shares."
 
    CLASS C SHARES.  Class C shares are sold at net asset value with no initial
sales charge but are subject to a CDSC of 1.0% on redemptions made within one
year after purchase. This CDSC may be waived for certain redemptions. They are
subject to an annual 12b-1 fee of up to 1.0% of the average daily net assets of
the Class C shares. The Class C shares' distribution fee may cause that Class to
have higher expenses and pay lower dividends than Class A or Class D shares. See
"Level Load Alternative--Class C Shares."
 
    CLASS D SHARES.  Class D shares are available only to limited categories of
investors (see "No Load Alternative--Class D Shares" below). Class D shares are
sold at net asset value with no initial sales charge or CDSC. They are not
subject to any 12b-1 fees. See "No Load Alternative--Class D Shares."
 
    SELECTING A PARTICULAR CLASS.  In deciding which Class of Fund shares to
purchase, investors should consider the following factors, as well as any other
relevant facts and circumstances:
 
    The decision as to which Class of shares is more beneficial to an investor
depends on the amount and intended length of his or her investment. Investors
who prefer an initial sales charge alternative may elect to purchase Class A
shares. Investors qualifying for significantly reduced or, in the case of
purchases of $1 million or more, no initial sales charges may find Class A
shares particularly attractive because similar sales charge reductions are not
available with respect to Class B or Class C shares. Moreover, Class A shares
are subject to lower ongoing expenses than are Class B or Class C shares over
the term of the investment. As an alternative, Class B and Class C shares are
sold without any initial sales charge so the entire purchase price is
immediately invested in the Fund. Any investment return on these additional
investment amounts may partially or wholly offset the higher annual expenses of
these Classes. Because the Fund's future return cannot be predicted, however,
there can be no assurance that this would be the case.
 
    Finally, investors should consider the effect of the CDSC period and any
conversion rights of the Classes in the context of their own investment time
frame. For example, although Class C shares are subject to a significantly lower
CDSC upon redemptions, they do not, unlike Class B shares, convert into Class A
shares after approximately ten years, and, therefore, are subject to an ongoing
12b-1 fee of 1.0% (rather than the 0.25% fee applicable to Class A shares) for
an indefinite period of time. Thus, Class B shares may be more attractive than
Class C shares to investors with longer term investment outlooks. Other
investors, however, may elect
 
                                       17
<PAGE>
to purchase Class C shares if, for example, they determine that they do not wish
to be subject to a front-end sales charge and they are uncertain as to the
length of time they intend to hold their shares.
 
   
    For the purpose of meeting the $5 million (or $25 million) minimum
investment amount for Class D shares, holdings of Class A shares in all Dean
Witter Multi-Class Funds, shares of FSC Funds and shares of Dean Witter Funds
for which such shares have been exchanged will be included together with the
current investment amount.
    
 
    Sales personnel may receive different compensation for selling each Class of
shares. Investors should understand that the purpose of a CDSC is the same as
that of the initial sales charge in that the sales charges applicable to each
Class provide for the financing of the distribution of shares of that Class.
 
    Set forth below is a chart comparing the sales charge, 12b-1 fees and
conversion options applicable to each Class of shares:
 
<TABLE>
<CAPTION>
- -----------------------------------------------------------
                                              CONVERSION
  CLASS       SALES CHARGE     12b-1 FEE       FEATURE
<C>        <S>                 <C>         <C>
- -----------------------------------------------------------
    A      Maximum 5.25%         0.25%            No
           initial sales
           charge reduced for
           purchases of
           $25,000 and over;
           shares sold
           without an initial
           sales charge
           generally subject
           to a 1.0% CDSC
           during first year.
- -----------------------------------------------------------
    B      Maximum 5.0% CDSC      1.0%     B shares convert
           during the first                to A shares
           year decreasing to              automatically
           0 after six years               after
                                           approximately
                                           ten years
- -----------------------------------------------------------
    C      1.0% CDSC during       1.0%            No
           first year
- -----------------------------------------------------------
    D             None            None            No
</TABLE>
 
    See "Purchase of Fund Shares" and "The Fund and its Management" for a
complete description of the sales charges and service and distribution fees for
each Class of shares and "Determination of Net Asset Value," "Dividends,
Distributions and Taxes" and "Shareholder Services--Exchange Privilege" for
other differences between the Classes of shares.
 
INITIAL SALES CHARGE ALTERNATIVE--
CLASS A SHARES
 
    Class A shares are sold at net asset value plus an initial sales charge. In
some cases, reduced sales charges may be available, as described below.
Investments of $1 million or more (and investments by certain other limited
categories of investors) are not subject to any sales charges at the time of
purchase but are subject to a CDSC of 1.0% on redemptions made within one year
after purchase (calculated from the last day of the month in which the shares
were purchased), except for certain specific circumstances. The CDSC will be
assessed on an amount equal to the lesser of the current market value or the
cost of the shares being redeemed. The CDSC will not be imposed (i) in the
circumstances set forth below in the section "Contingent Deferred Sales Charge
Alternative--Class B Shares--CDSC Waivers," except that the references to six
years in the first paragraph of that section shall mean one year in the case of
Class A shares, and (ii) in the circumstances identified in the section
"Additional Net Asset Value Purchase Options" below. Class A shares are also
subject to an annual 12b-1 fee of up to 0.25% of the average daily net assets of
the Class.
 
    The offering price of Class A shares will be the net asset value per share
next determined following receipt of an order (see "Determination of Net Asset
Value" below), plus a sales charge (expressed as a percentage of the offering
price) on a single transaction as shown in the following table:
 
                                       18
<PAGE>
 
<TABLE>
<CAPTION>
                                          SALES CHARGE
                           ------------------------------------------
                              PERCENTAGE OF          APPROXIMATE
        AMOUNT OF            PUBLIC OFFERING    PERCENTAGE OF AMOUNT
   SINGLE TRANSACTION             PRICE               INVESTED
- -------------------------  -------------------  ---------------------
<S>                        <C>                  <C>
Less than $25,000........           5.25%                 5.54%
$25,000 but less
     than $50,000........           4.75%                 4.99%
$50,000 but less
     than $100,000.......           4.00%                 4.17%
$100,000 but less
     than $250,000.......           3.00%                 3.09%
$250,000 but less
     than $1 million.....           2.00%                 2.04%
$1 million and over......              0                     0
</TABLE>
 
    Upon notice to all Selected Broker-Dealers, the Distributor may reallow up
to the full applicable sales charge as shown in the above schedule during
periods specified in such notice. During periods when 90% or more of the sales
charge is reallowed, such Selected Broker-Dealers may be deemed to be
underwriters as that term is defined in the Securities Act of 1933.
 
    The above schedule of sales charges is applicable to purchases in a single
transaction by, among others: (a) an individual; (b) an individual, his or her
spouse and their children under the age of 21 purchasing shares for his, her or
their own accounts; (c) a trustee or other fiduciary purchasing shares for a
single trust estate or a single fiduciary account; (d) a pension, profit-sharing
or other employee benefit plan qualified or non-qualified under Section 401 of
the Internal Revenue Code; (e) tax-exempt organizations enumerated in Section
501(c)(3) or (13) of the Internal Revenue Code; (f) employee benefit plans
qualified under Section 401 of the Internal Revenue Code of a single employer or
of employers who are "affiliated persons" of each other within the meaning of
Section 2(a)(3)(c) of the Act; and for investments in Individual Retirement
Accounts of employees of a single employer through Systematic Payroll Deduction
plans; or (g) any other organized group of persons, whether incorporated or not,
provided the organization has been in existence for at least six months and has
some purpose other than the purchase of redeemable securities of a registered
investment company at a discount.
 
    COMBINED PURCHASE PRIVILEGE.  Investors may have the benefit of reduced
sales charges in accordance with the above schedule by combining purchases of
Class A shares of the Fund in single transactions with the purchase of Class A
shares of other Dean Witter Multi-Class Funds and shares of FSC Funds. The sales
charge payable on the purchase of the Class A shares of the Fund, the Class A
shares of the other Dean Witter Multi-Class Funds and the shares of the FSC
Funds will be at their respective rates applicable to the total amount of the
combined concurrent purchases of such shares.
 
   
    RIGHT OF ACCUMULATION.  The above persons and entities may benefit from a
reduction of the sales charges in accordance with the above schedule if the
cumulative net asset value of Class A shares purchased in a single transaction,
together with shares of the Fund and other Dean Witter Funds previously
purchased at a price including a front-end sales charge (including shares of the
Fund and other Dean Witter Funds acquired in exchange for those shares, and
including in each case shares acquired through reinvestment of dividends and
distributions), which are held at the time of such transaction, amounts to
$25,000 or more. If such investor has a cumulative net asset value of shares of
FSC Funds and Class A and Class D shares that, together with the current
investment amount, is equal to at least $5 million ($25 million for certain
qualified plans), such investor is eligible to purchase Class D shares subject
to the $1,000 minimum initial investment requirement of that Class of the Fund.
See "No Load Alternative--Class D Shares" below.
    
 
    The Distributor must be notified by DWR or a Selected Broker-Dealer or the
shareholder at the time a purchase order is placed that the purchase qualifies
for the reduced charge under the Right of Accumulation. Similar notification
must be made in writing by the dealer or shareholder when such an
 
                                       19
<PAGE>
order is placed by mail. The reduced sales charge will not be granted if: (a)
such notification is not furnished at the time of the order; or (b) a review of
the records of the Selected Broker-Dealer or the Transfer Agent fails to confirm
the investor's represented holdings.
 
    LETTER OF INTENT.  The foregoing schedule of reduced sales charges will also
be available to investors who enter into a written Letter of Intent providing
for the purchase, within a thirteen-month period, of Class A shares of the Fund
from DWR or other Selected Broker-Dealers. The cost of Class A shares of the
Fund or shares of other Dean Witter Funds which were previously purchased at a
price including a front-end sales charge during the 90-day period prior to the
date of receipt by the Distributor of the Letter of Intent, or of Class A shares
of the Fund or shares of other Dean Witter Funds acquired in exchange for shares
of such funds purchased during such period at a price including a front-end
sales charge, which are still owned by the shareholder, may also be included in
determining the applicable reduction.
 
    ADDITIONAL NET ASSET VALUE PURCHASE OPTIONS. In addition to investments of
$1 million or more, Class A shares also may be purchased at net asset value by
the following:
 
   
    (1) trusts for which DWT (an affiliate of the Investment Manager) provides
discretionary trustee services;
    
 
   
    (2) persons participating in a fee-based program approved by the
Distributor, pursuant to which such persons pay an asset based fee for services
in the nature of investment advisory or administrative services (such
investments are subject to all of the terms and conditions of such programs,
which may include termination fees mandatory redemption upon termination and
such other circumstances as specified in the programs' agreements, and
restrictions on transferability of Fund shares);
    
 
   
    (3) employer-sponsored 401(k) and other plans qualified under Section 401(a)
of the Internal Revenue Code ("Qualified Retirement Plans") with at least 200
eligible employees and for which DWT serves as Trustee or DWR's Retirement Plan
Services serves as recordkeeper pursuant to a written Recordkeeping Services
Agreement;
    
 
   
    (4) Qualified Retirement Plans for which DWT serves as Trustee or DWR's
Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement whose Class B shares have converted to Class A
shares, regardless of the plan's asset size or number of eligible employees;
    
 
    (5) investors who are clients of a Dean Witter account executive who joined
Dean Witter from another investment firm within six months prior to the date of
purchase of Fund shares by such investors, if the shares are being purchased
with the proceeds from a redemption of shares of an open-end proprietary mutual
fund of the account executive's previous firm which imposed either a front-end
or deferred sales charge, provided such purchase was made within sixty days
after the redemption and the proceeds of the redemption had been maintained in
the interim in cash or a money market fund; and
 
    (6) other categories of investors, at the discretion of the Board, as
disclosed in the then current prospectus of the Fund.
 
    No CDSC will be imposed on redemptions of shares purchased pursuant to
paragraphs (1), (2) or (5), above.
 
    For further information concerning purchases of the Fund's shares, contact
DWR or another Selected Broker-Dealer or consult the Statement of Additional
Information.
 
CONTINGENT DEFERRED SALES CHARGE
ALTERNATIVE--CLASS B SHARES
 
    Class B shares are sold at net asset value next determined without an
initial sales charge so that the full amount of an investor's purchase payment
may be immediately invested in the Fund. A CDSC, however, will be imposed on
most Class B shares redeemed within six years after purchase. The
 
                                       20
<PAGE>
   
CDSC will be imposed on any redemption of shares if after such redemption the
aggregate current value of a Class B account with the Fund falls below the
aggregate amount of the investor's purchase payments for Class B shares made
during the six years (or, in the case of shares held by certain Qualified
Retirement Plans, three years) preceding the redemption. In addition, Class B
shares are subject to an annual 12b-1 fee of 1.0% of the lesser of: (a) the
average daily aggregate gross sales of the Fund's Class B shares since the
inception of the Fund (not including reinvestments of dividends or capital gains
distributions), less the average daily aggregate net asset value of the Fund's
Class B shares redeemed since the Fund's inception upon which a CDSC has been
imposed or waived, or (b) the average daily net assets of Class B.
    
 
    Except as noted below, Class B shares of the Fund which are held for six
years or more after purchase (calculated from the last day of the month in which
the shares were purchased) will not be subject to any CDSC upon redemption.
Shares redeemed earlier than six years after purchase may, however, be subject
to a CDSC which will be a percentage of the dollar amount of shares redeemed and
will be assessed on an amount equal to the lesser of the current market value or
the cost of the shares being redeemed. The size of this percentage will depend
upon how long the shares have been held, as set forth in the following table:
 
<TABLE>
<CAPTION>
         YEAR SINCE PURCHASE            CDSC AS A PERCENTAGE
             PAYMENT MADE                OF AMOUNT REDEEMED
- --------------------------------------  ---------------------
<S>                                     <C>
First.................................          5.0%
Second................................          4.0%
Third.................................          3.0%
Fourth................................          2.0%
Fifth.................................          2.0%
Sixth.................................          1.0%
Seventh and thereafter................          None
</TABLE>
 
   
    In the case of Class B shares of the Fund purchased on or after July 28,
1997 by Qualified Retirement Plans for which DWT serves as Trustee or DWR's
Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement, shares held for three years or more after
purchase (calculated as described in the paragraph above) will not be subject to
any CDSC upon redemption. However, shares redeemed earlier than three years
after purchase may be subject to a CDSC (calculated as described in the
paragraph above), the percentage of which will depend on how long the shares
have been held, as set forth in the following table:
    
 
<TABLE>
<CAPTION>
         YEAR SINCE PURCHASE            CDSC AS A PERCENTAGE
             PAYMENT MADE                OF AMOUNT REDEEMED
- --------------------------------------  ---------------------
<S>                                     <C>
First.................................          2.0%
Second................................          2.0%
Third.................................          1.0%
Fourth and thereafter.................          None
</TABLE>
 
   
    CDSC WAIVERS.  A CDSC will not be imposed on: (i) any amount which
represents an increase in value of shares purchased within the six years (or, in
the case of shares held by certain Qualified Retirement Plans, three years)
preceding the redemption; (ii) the current net asset value of shares purchased
more than six years (or, in the case of shares held by certain Qualified
Retirement Plans, three years) prior to the redemption; and (iii) the current
net asset value of shares purchased through reinvestment of dividends or
distributions and/or shares acquired in exchange for shares of FSC Funds or of
other Dean Witter Funds acquired in exchange for such shares. Moreover, in
determining whether a CDSC is applicable it will be assumed that amounts
described in (i), (ii) and (iii) above (in that order) are redeemed first.
    
 
    In addition, the CDSC, if otherwise applicable, will be waived in the case
of:
 
    (1) redemptions of shares held at the time a shareholder dies or becomes
disabled, only if the shares are:  (a) registered either in the name of an
individual shareholder (not a trust), or in the names of such shareholder and
his or her spouse as joint tenants with right of survivorship; or  (b) held in a
qualified corporate or self-employed retirement
 
                                       21
<PAGE>
plan, Individual Retirement Account ("IRA") or Custodial Account under Section
403(b)(7) of the Internal Revenue Code ("403(b) Custodial Account"), provided in
either case that the redemption is requested within one year of the death or
initial determination of disability;
 
    (2) redemptions in connection with the following retirement plan
distributions:  (a) lump-sum or other distributions from a qualified corporate
or self-employed retirement plan following retirement (or, in the case of a "key
employee" of a "top heavy" plan, following attainment of age 59 1/2); (b)
distributions from an IRA or 403(b) Custodial Account following attainment of
age 59 1/2; or  (c) a tax-free return of an excess contribution to an IRA; and
 
   
    (3) all redemptions of shares held for the benefit of a participant in a
Qualified Retirement Plan which offers investment companies managed by the
Investment Manager or its subsidiary, Dean Witter Services Company Inc., as
self-directed investment alternatives and for which DWT serves as Trustee or
DWR's Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement ("Eligible Plan"), provided that either:  (a)
the plan continues to be an Eligible Plan after the redemption; or  (b) the
redemption is in connection with the complete termination of the plan involving
the distribution of all plan assets to participants.
    
 
    With reference to (1) above, for the purpose of determining disability, the
Distributor utilizes the definition of disability contained in Section 72(m)(7)
of the Internal Revenue Code, which relates to the inability to engage in
gainful employment. With reference to (2) above, the term "distribution" does
not encompass a direct transfer of IRA, 403(b) Custodial Account or retirement
plan assets to a successor custodian or trustee. All waivers will be granted
only following receipt by the Distributor of confirmation of the shareholder's
entitlement.
 
   
    CONVERSION TO CLASS A SHARES.  All shares of the Fund held prior to July 28,
1997 (other than shares held by certain employee benefit plans established by
DWR and its affiliate, SPS Transaction Services, Inc.) have been designated
Class B shares. Shares held before May 1, 1997 that have been designated Class B
shares will convert to Class A shares in May, 2007. In all other instances Class
B shares will convert automatically to Class A shares, based on the relative net
asset values of the shares of the two Classes on the conversion date, which will
be approximately ten (10) years after the date of the original purchase. The ten
year period is calculated from the last day of the month in which the shares
were purchased or, in the case of Class B shares acquired through an exchange or
a series of exchanges, from the last day of the month in which the original
Class B shares were purchased, provided that shares originally purchased before
May 1, 1997 will convert to Class A shares in May, 2007. The conversion of
shares purchased on or after May 1, 1997 will take place in the month following
the tenth anniversary of the purchase. There will also be converted at that time
such proportion of Class B shares acquired through automatic reinvestment of
dividends and distributions owned by the shareholder as the total number of his
or her Class B shares converting at the time bears to the total number of
outstanding Class B shares purchased and owned by the shareholder. In the case
of Class B shares held by a Qualified Retirement Plan for which DWT serves as
Trustee or DWR's Retirement Plan Services serves as recordkeeper pursuant to a
written Recordkeeping Services Agreement, the plan is treated as a single
investor and all Class B shares will convert to Class A shares on the conversion
date of the first shares of a Dean Witter Multi-Class Fund purchased by that
plan. In the case of Class B shares previously exchanged for shares of an
"Exchange Fund" (see "Shareholder Services--Exchange Privilege"), the period of
time the shares were held in the Exchange Fund (calculated from the last day of
the month in which the Exchange Fund shares were acquired) is excluded from the
holding period for conversion. If those shares are subsequently re-exchanged for
Class B
    
 
                                       22
<PAGE>
shares of a Dean Witter Multi-Class Fund, the holding period resumes on the last
day of the month in which Class B shares are reacquired.
 
    If a shareholder has received share certificates for Class B shares, such
certificates must be delivered to the Transfer Agent at least one week prior to
the date for conversion. Class B shares evidenced by share certificates that are
not received by the Transfer Agent at least one week prior to any conversion
date will be converted into Class A shares on the next scheduled conversion date
after such certificates are received.
 
   
    Effectiveness of the conversion feature is subject to the continuing
availability of a ruling of the Internal Revenue Service or an opinion of
counsel that (i) the conversion of shares does not constitute a taxable event
under the Internal Revenue Code, (ii) Class A shares received on conversion will
have a basis equal to the shareholder's basis in the converted Class B shares
immediately prior to the conversion, and (iii) Class A shares received on
conversion will have a holding period that includes the holding period of the
converted Class B shares. The conversion feature may be suspended if the ruling
or opinion is no longer available. In such event, Class B shares would continue
to be subject to Class B 12b-1 fees.
    
 
LEVEL LOAD ALTERNATIVE--CLASS C SHARES
 
    Class C shares are sold at net asset value next determined without an
initial sales charge but are subject to a CDSC of 1.0% on most redemptions made
within one year after purchase (calculated from the last day of the month in
which the shares were purchased). The CDSC will be assessed on an amount equal
to the lesser of the current market value or the cost of the shares being
redeemed. The CDSC will not be imposed in the circumstances set forth above in
the section "Contingent Deferred Sales Charge Alternative--Class B Shares--CDSC
Waivers," except that the references to six years in the first paragraph of that
section shall mean one year in the case of Class C shares. Class C shares are
subject to an annual 12b-1 fee of up to 1.0% of the average daily net assets of
the Class. Unlike Class B shares, Class C shares have no conversion feature and,
accordingly, an investor that purchases Class C shares will be subject to 12b-1
fees applicable to Class C shares for an indefinite period subject to annual
approval by the Fund's Board of Trustees and regulatory limitations.
 
NO LOAD ALTERNATIVE--CLASS D SHARES
 
   
    Class D shares are offered without any sales charge on purchase or
redemption and without any 12b-1 fee. Class D shares are offered only to
investors meeting an initial investment minimum of $5 million ($25 million for
Qualified Retirement Plans for which DWT serves as Trustee or DWR's Retirement
Plan Services serves as recordkeeper pursuant to a written Recordkeeping
Services Agreement) and the following categories of investors: (i) investors
participating in the InterCapital mutual fund asset allocation program pursuant
to which such persons pay an asset based fee; (ii) persons participating in a
fee-based program approved by the Distributor, pursuant to which such persons
pay an asset based fee for services in the nature of investment advisory or
administrative services (subject to all of the terms and conditions of such
programs referred to in (i) and (ii) above, which may include termination fees,
mandatory redemption upon termination and such other circumstances as specified
in the programs' agreements and restrictions on transferability of Fund shares);
(iii) 401(k) plans established by DWR and SPS Transaction Services, Inc. (an
affiliate of DWR) for their employees; (iv) certain Unit Investment Trusts
sponsored by DWR; (v) certain other open-end investment companies whose shares
are distributed by the Distributor; and (vi) other categories of investors, at
the discretion of the Board, as disclosed in the then current prospectus of the
Fund. Shares of the Fund held by the employee benefit plans referred to in
clause (iii) above prior to July 28, 1997 have been designated Class D shares.
Investors who require a $5 million (or $25 million) minimum initial investment
to qualify to purchase Class D shares may satisfy that requirement by investing
that amount in
    
 
                                       23
<PAGE>
   
a single transaction in Class D shares of the Fund and other Dean Witter
Multi-Class Funds, subject to the $1,000 minimum initial investment required for
that Class of the Fund. In addition, for the purpose of meeting the $5 million
(or $25 million) minimum investment amount, holdings of Class A shares in all
Dean Witter Multi-Class Funds, shares of FSC Funds and shares of Dean Witter
Funds for which such shares have been exchanged will be included together with
the current investment amount. If a shareholder redeems Class A shares and
purchases Class D shares, such redemption may be a taxable event.
    
 
PLAN OF DISTRIBUTION
 
    The Fund has adopted a Plan of Distribution pursuant to Rule 12b-1 under the
Act with respect to the distribution of Class A, Class B and Class C shares of
the Fund. In the case of Class A and Class C shares, the Plan provides that the
Fund will reimburse the Distributor and others for the expenses of certain
activities and services incurred by them specifically on behalf of those shares.
Reimbursements for these expenses will be made in monthly payments by the Fund
to the Distributor, which will in no event exceed amounts equal to payments at
the annual rates of 0.25% and 1.0% of the average daily net assets of Class A
and Class C, respectively. In the case of Class B shares, the Plan provides that
the Fund will pay the Distributor a fee, which is accrued daily and paid
monthly, at the annual rate of 1.0% of the lesser of: (a) the average daily
aggregate gross sales of the Fund's Class B shares since the inception of the
Fund (not including reinvestments of dividends or capital gains distributions),
less the average daily aggregate net asset value of the Fund's Class B shares
redeemed since the Fund's inception upon which a CDSC has been imposed or
waived, or (b) the average daily net assets of Class B. The fee is treated by
the Fund as an expense in the year it is accrued. In the case of Class A shares,
the entire amount of the fee currently represents a service fee within the
meaning of the NASD guidelines. In the case of Class B and Class C shares, a
portion of the fee payable pursuant to the Plan, equal to 0.25% of the average
daily net assets of each of these Classes, is currently characterized as a
service fee. A service fee is a payment made for personal service and/or the
maintenance of shareholder accounts.
 
    Additional amounts paid under the Plan in the case of Class B and Class C
shares are paid to the Distributor for services provided and the expenses borne
by the Distributor and others in the distribution of the shares of those
Classes, including the payment of commissions for sales of the shares of those
Classes and incentive compensation to and expenses of DWR's account executives
and others who engage in or support distribution of shares or who service
shareholder accounts, including overhead and telephone expenses; printing and
distribution of prospectuses and reports used in connection with the offering of
the Fund's shares to other than current shareholders; and preparation, printing
and distribution of sales literature and advertising materials. In addition, the
Distributor may utilize fees paid pursuant to the Plan in the case of Class B
shares to compensate DWR and other Selected Broker-Dealers for their opportunity
costs in advancing such amounts, which compensation would be in the form of a
carrying charge on any unreimbursed expenses.
 
   
    For the fiscal year ended December 31, 1997, Class B shares of the Fund
accrued payments under the Plan amounting to $23,748,377, which amount is equal
to 1.0% of the average daily net assets of Class B for the fiscal year. These
payments accrued under the Plan were calculated pursuant to clause (b) of the
compensation formula under the Plan. All shares held prior to July 28, 1997
(other than shares held by certain employee benefit plans established by DWR and
its affiliate, SPS Transaction Services, Inc.) have been designated Class B
shares. For the fiscal period July 28 through December 31, 1997, Class A and
Class C shares of the Fund accrued payments under the Plan amounting to $5,899
and $1,568, respectively, which amounts on an annualized basis are equal to .25%
and 1.00%
    
 
                                       24
<PAGE>
   
of the average daily net assets of Class A and Class C, respectively, for such
period.
    
 
   
    In the case of Class B shares, at any given time, the expenses in
distributing Class B shares of the Fund may be in excess of the total of (i) the
payments made by the Fund pursuant to the Plan, and (ii) the proceeds of CDSCs
paid by investors upon the redemption of Class B shares. For example, if $1
million in expenses in distributing Class B shares of the Fund had been incurred
and $750,000 had been received as described in (i) and (ii) above, the excess
expense would amount to $250,000. The Distributor has advised the Fund that such
excess amounts, including the carrying charge described above, totalled
$63,773,437 at December 31, 1997, which was equal to 2.62% of the net assets of
Class B on such date. Because there is no requirement under the Plan that the
Distributor be reimbursed for all distribution expenses or any requirement that
the Plan be continued from year to year, such excess amount does not constitute
a liability of the Fund. Although there is no legal obligation for the Fund to
pay expenses incurred in excess of payments made to the Distributor under the
Plan, and the proceeds of CDSCs paid by investors upon redemption of shares, if
for any reason the Plan is terminated the Trustees will consider at that time
the manner in which to treat such expenses. Any cumulative expenses incurred,
but not yet recovered through distribution fees or CDSCs, may or may not be
recovered through future distribution fees or CDSCs.
    
 
   
    In the case of Class A and Class C shares, expenses incurred pursuant to the
Plan in any calendar year in excess of 0.25% or 1.0% of the average daily net
assets of Class A or Class C, respectively, will not be reimbursed by the Fund
through payments in any subsequent year, except that expenses representing a
gross sales commission credited to account executives at the time of sale may be
reimbursed in the subsequent calendar year. The Distributor has advised the Fund
that unreimbursed expenses representing a gross sales commission credited to
account executives at the time of sale totalled $6,562 in the case of Class C at
December 31, 1997, which amount was equal to 0.47% of the net assets of Class C
on such date, and that there were no such expenses that may be reimbursed in the
subsequent year in the case of Class A on such date. No interest or other
financing charges will be incurred on any Class A or Class C distribution
expenses incurred by the Distributor under the Plan or on any unreimbursed
expenses due to the Distributor pursuant to the Plan.
    
 
DETERMINATION OF NET ASSET VALUE
 
    The net asset value per share is determined once daily at 4:00 p.m., New
York time (or, on days when the New York Stock Exchange closes prior to 4:00
p.m., at such earlier time), on each day that the New York Stock Exchange is
open by taking the net assets of the Fund, dividing by the number of shares
outstanding and adjusting to the nearest cent. The assets belonging to the Class
A, Class B, Class C and Class D shares will be invested together in a single
portfolio. The net asset value of each Class, however, will be determined
separately by subtracting each Class's accrued expenses and liabilities. The net
asset value per share will not be determined on Good Friday and on such other
federal and non-federal holidays as are observed by the New York Stock Exchange.
 
    In the calculation of the Fund's net asset value: (1) an equity portfolio
security listed or traded on the New York or American Stock Exchange or other
domestic or foreign exchange is valued at its latest sale price on that exchange
prior to the time when assets are valued; if there were no sales that day, the
security is valued at the latest bid price (in cases where a security is traded
on more than one exchange, the security is valued on the exchange designated as
the primary market pursuant to procedures adopted by the Trustees); and (2) all
other portfolio securities for which over-the-counter market quotations are
readily available are valued at the latest bid price. When market quotations are
not readily available, including circumstances under which it is determined by
the Investment Manager
 
                                       25
<PAGE>
that sale or bid prices are not reflective of a security's market value,
portfolio securities are valued at their fair value as determined in good faith
under procedures established by and under the general supervision of the Board
of Trustees.
 
    Short-term debt securities with remaining maturities of sixty days or less
at the time of purchase are valued at amortized cost, unless the Trustees
determine such does not reflect the securities' market value, in which case
these securities will be valued at their fair value as determined by the
Trustees.
 
    Certain securities in the Fund's portfolio may be valued by an outside
pricing service approved by the Fund's Trustees. The pricing service may utilize
a matrix system incorporating security quality, maturity and coupon as the
evaluation model parameters, and/or research evaluations by its staff, including
review of broker-dealer market price quotations, in determining what it believes
is the fair valuation of the portfolio securities valued by such pricing
service.
 
SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------
 
    AUTOMATIC INVESTMENT OF DIVIDENDS AND DISTRIBUTIONS.  All income dividends
and capital gains distributions are automatically paid in full and fractional
shares of the applicable Class of the Fund (or, if specified by the shareholder,
in shares of any other open-end Dean Witter Funds), unless the shareholder
requests that they be paid in cash. Shares so acquired are acquired at net asset
value and are not subject to the imposition of a front-end sales charge or a
CDSC upon their redemption (see "Redemptions and Repurchases").
 
    INVESTMENT OF DISTRIBUTIONS RECEIVED IN CASH. Any shareholder who receives a
cash payment representing a dividend or capital gains distribution may invest
such dividend or distribution in shares of the applicable Class at the net asset
value per share next determined after receipt by the Transfer Agent, by
returning the check or the proceeds to the Transfer Agent within thirty days
after the payment date. Shares so acquired are acquired at net asset value and
are not subject to the imposition of a front-end sales charge or a CDSC (see
"Redemptions and Repurchases").
 
    EASYINVEST-SM-.  Shareholders may subscribe to EasyInvest, an automatic
purchase plan which provides for any amount from $100 to $5,000 to be
transferred automatically from a checking or savings account or following
redemption of shares of a Dean Witter money market fund, on a semi-monthly,
monthly or quarterly basis, to the Transfer Agent for investment in shares of
the Fund (see "Purchase of Fund Shares" and "Redemptions and
Repurchases--Involuntary Redemption").
 
    SYSTEMATIC WITHDRAWAL PLAN.  A systematic withdrawal plan (the "Withdrawal
Plan") is available for shareholders who own or purchase shares of the Fund
having a minimum value of $10,000 based upon the then current net asset value.
The Withdrawal Plan provides for monthly or quarterly (March, June, September
and December) checks in any amount, not less than $25, or in any whole
percentage of the account balance, on an annualized basis. Any applicable CDSC
will be imposed on shares redeemed under the Withdrawal Plan (See "Purchase of
Fund Shares"). Therefore, any shareholder participating in the Withdrawal Plan
will have sufficient shares redeemed from his or her account so that the
proceeds (net of any applicable CDSC) to the shareholder will be the designated
monthly or quarterly amount. Withdrawal plan payments should not be considered
as dividends, yields or income. If periodic withdrawal plan payments
continuously exceed net investment income and net capital gains, the
shareholder's original investment will be correspondingly reduced and ultimately
exhausted. Each withdrawal constitutes a redemption of shares and any gain or
loss realized must be recognized for federal income tax purposes.
 
                                       26
<PAGE>
    Shareholders should contact their DWR or other Selected Broker-Dealer
account executive or the Transfer Agent for further information about any of the
above services.
 
EXCHANGE PRIVILEGE
 
   
    Shares of each Class may be exchanged for shares of the same Class of any
other Dean Witter Multi-Class Fund without the imposition of any exchange fee.
Shares may also be exchanged for shares of the following funds: Dean Witter
Short-Term U.S. Treasury Trust, Dean Witter Limited Term Municipal Trust, Dean
Witter Short-Term Bond Fund, Dean Witter Intermediate Term U.S. Treasury Trust
and five Dean Witter funds which are money market funds (the "Exchange Funds").
Class A shares may also be exchanged for shares of Dean Witter Multi-State
Municipal Series Trust and Dean Witter Hawaii Municipal Trust, which are Dean
Witter Funds sold with a front-end sales charge ("FSC Funds"). Class B shares
may also be exchanged for shares of Dean Witter Global Short-Term Income Fund
Inc. ("Global Short-Term"), which is a Dean Witter Fund offered with a CDSC.
Exchanges may be made after the shares of the Fund acquired by purchase (not by
exchange or dividend reinvestment) have been held for thirty days. There is no
waiting period for exchanges of shares acquired by exchange or dividend
reinvestment.
    
 
   
    An exchange to another Dean Witter Multi-Class Fund, any FSC Fund, Global
Short-Term or any Exchange Fund that is not a money market fund is on the basis
of the next calculated net asset value per share of each fund after the exchange
order is received. When exchanging into a money market fund from the Fund,
shares of the Fund are redeemed out of the Fund at their next calculated net
asset value and the proceeds of the redemption are used to purchase shares of
the money market fund at their net asset value determined the following business
day. Subsequent exchanges between any of the money market funds and any of the
Dean Witter Multi-Class Funds, FSC Funds or Global Short-Term or any Exchange
Fund that is not a money market fund can be effected on the same basis.
    
 
   
    No CDSC is imposed at the time of any exchange of shares, although any
applicable CDSC will be imposed upon ultimate redemption. During the period of
time the shareholder remains in an Exchange Fund (calculated from the last day
of the month in which the Exchange Fund shares were acquired), the holding
period (for the purpose of determining the rate of the CDSC) is frozen. If those
shares are subsequently re-exchanged for shares of a Dean Witter Multi-Class
Fund or shares of a Global Short-Term, the holding period previously frozen when
the first exchange was made resumes on the last day of the month in which shares
of a Dean Witter Multi-Class Fund or shares of Global Short-Term are reacquired.
Thus, the CDSC is based upon the time (calculated as described above) the
shareholder was invested in shares of a Dean Witter Multi-Class Fund or in
shares of Global Short-Term (see "Purchase of Fund Shares"). In the case of
exchanges of Class A shares which are subject to a CDSC, the holding period also
includes the time (calculated as described above) the shareholder was invested
in shares of a FSC Fund. In the case of shares exchanged into an Exchange Fund
on or after April 23, 1990, upon a redemption of shares which results in a CDSC
being imposed, a credit (not to exceed the amount of the CDSC) will be given in
an amount equal to the Exchange Fund 12b-1 distribution fees incurred on or
after that date which are attributable to those shares. (Exchange Fund 12b-1
distribution fees are described in the prospectuses for those funds.) Class B
shares of the Fund acquired in exchange for Global Short-Term or Class B shares
of another Dean Witter Multi-Class Fund having a different CDSC schedule than
that of this Fund will be subject to the higher CDSC schedule, even if such
shares are subsequently reexchanged for shares of the fund with the lower CDSC
schedule.
    
 
    ADDITIONAL INFORMATION REGARDING EXCHANGES. Purchases and exchanges should
be made for investment purposes only. A pattern of frequent
 
                                       27
<PAGE>
exchanges may be deemed by the Investment Manager to be abusive and contrary to
the best interests of the Fund's other shareholders and, at the Investment
Manager's discretion, may be limited by the Fund's refusal to accept additional
purchases and/ or exchanges from the investor. Although the Fund does not have
any specific definition of what constitutes a pattern of frequent exchanges, and
will consider all relevant factors in determining whether a particular situation
is abusive and contrary to the best interests of the Fund and its other
shareholders, investors should be aware that the Fund and each of the other Dean
Witter Funds may in their discretion limit or otherwise restrict the number of
times this Exchange Privilege may be exercised by any investor. Any such
restriction will be made by the Fund on a prospective basis only, upon notice to
the shareholder not later than ten days following such shareholder's most recent
exchange.
 
    The Exchange Privilege may be terminated or revised at any time by the Fund
and/or any of such Dean Witter Funds for which shares of the Fund have been
exchanged, upon such notice as may be required by applicable regulatory
agencies. Shareholders maintaining margin accounts with DWR or another Selected
Broker-Dealer are referred to their account executive regarding restrictions on
exchange of shares of the Fund pledged in the margin account.
 
    The current prospectus for each fund describes its investment objective(s)
and policies, and shareholders should obtain a copy and examine it carefully
before investing. Exchanges are subject to the minimum investment requirement of
each Class of shares and any other conditions imposed by each fund. In the case
of a shareholder holding a share certificate or certificates, no exchanges may
be made until all applicable share certificates have been received by the
Transfer Agent and deposited in the shareholder's account. An exchange will be
treated for federal income tax purposes the same as a repurchase or redemption
of shares, on which the shareholder may realize a capital gain or loss. However,
the ability to deduct capital losses on an exchange may be limited in situations
where there is an exchange of shares within ninety days after the shares are
purchased. The Exchange Privilege is only available in states where an exchange
may legally be made.
 
    If DWR or another Selected Broker-Dealer is the current dealer of record and
its account numbers are part of the account information, shareholders may
initiate an exchange of shares of the Fund for shares of any of the Dean Witter
Funds (for which the Exchange Privilege is available) pursuant to this Exchange
Privilege by contacting their DWR or other Selected Broker-Dealer account
executive (no Exchange Privilege Authorization Form is required). Other
shareholders (and those shareholders who are clients of DWR or another Selected
Broker-Dealer but who wish to make exchanges directly by writing or telephoning
the Transfer Agent) must complete and forward to the Transfer Agent an Exchange
Privilege Authorization Form, copies of which may be obtained from the Transfer
Agent, to initiate an exchange. If the Authorization Form is used, exchanges may
be made in writing or by contacting the Transfer Agent at (800) 869-NEWS (toll-
free).
 
    The Fund will employ reasonable procedures to confirm that exchange
instructions communicated over the telephone are genuine. Such procedures may
include requiring various forms of personal identification such as name, mailing
address, social security or other tax identification number and DWR or other
Selected Broker-Dealer account number (if any). Telephone instructions may also
be recorded. If such procedures are not employed, the Fund may be liable for any
losses due to unauthorized or fraudulent instructions.
 
    Telephone exchange instructions will be accepted if received by the Transfer
Agent between 9:00 a.m. and 4:00 p.m., New York time, on any day the New York
Stock Exchange is open. Any shareholder wishing to make an exchange who has
previously filed an Exchange Privilege Authorization
 
                                       28
<PAGE>
Form and who is unable to reach the Fund by telephone should contact his or her
DWR or other Selected Broker-Dealer account executive, if appropriate, or make a
written exchange request. Shareholders are advised that during periods of
drastic economic or market changes, it is possible that the telephone exchange
procedures may be difficult to implement, although this has not been the case
with the Dean Witter Funds in the past.
 
    Shareholders should contact their DWR or other Selected Broker-Dealer
account executive or the Transfer Agent for further information about the
Exchange Privilege.
 
REDEMPTIONS AND REPURCHASES
- --------------------------------------------------------------------------------
 
    REDEMPTION.  Shares of each Class of the Fund can be redeemed for cash at
any time at the net asset value per share next determined; less the amount of
any applicable CDSC in the case of Class A, Class B or Class C shares (see
"Purchase of Fund Shares"). If shares are held in a shareholder's account
without a share certificate, a written request for redemption sent to the Fund's
Transfer Agent at P.O. Box 983, Jersey City, NJ 07303 is required. If
certificates are held by the shareholders, the shares may be redeemed by
surrendering the certificates with a written request for redemption, along with
any additional documentation required by the Transfer Agent.
 
    REPURCHASE.  DWR and other Selected Broker-Dealers are authorized to
repurchase shares represented by a share certificate which is delivered to any
of their offices. Shares held in a shareholder's account without a share
certificate may also be repurchased by DWR and other Selected Broker-Dealers
upon the telephonic or telegraphic request of the shareholder. The repurchase
price is the net asset value next computed (see "Purchase of Fund Shares") after
such repurchase order is received by DWR or other Selected Broker-Dealers,
reduced by any applicable CDSC.
 
    The CDSC, if any, will be the only fee imposed by the Fund or the
Distributor. The offers by DWR and other Selected Broker-Dealers to repurchase
shares may be suspended without notice by them at any time. In that event,
shareholders may redeem their shares through the Fund's Transfer Agent as set
forth above under "Redemption."
 
    PAYMENT FOR SHARES REDEEMED OR REPURCHASED.  Payment for shares presented
for repurchase or redemption will be made by check within seven days after
receipt by the Transfer Agent of the certificate and/or written request in good
order. Such payment may be postponed or the right of redemption suspended under
unusual circumstances. If the shares to be redeemed have recently been purchased
by check, payment of the redemption proceeds may be delayed for the minimum time
needed to verify that the check used for investment has been honored (not more
than fifteen days from the time of receipt of the check by the Transfer Agent).
Shareholders maintaining margin accounts with DWR or another Selected
Broker-Dealer are referred to their account executive regarding restrictions on
redemption of shares of the Fund pledged in the margin account.
 
    REINSTATEMENT PRIVILEGE.  A shareholder who has had his or her shares
redeemed or repurchased and has not previously exercised this reinstatement
privilege may, within 35 days after the date of the redemption or repurchase,
reinstate any portion or all of the proceeds of such redemption or repurchase in
shares of the Fund in the same Class from which such shares were redeemed or
repurchased, at net asset value next determined after a reinstatement request,
together with the proceeds, is received by the Transfer Agent and receive a pro
rata credit for any CDSC paid in connection with such redemption or repurchase.
 
    INVOLUNTARY REDEMPTION.  The Fund reserves the right, on sixty days' notice,
to redeem, at their net asset value, the shares of any shareholder
 
                                       29
<PAGE>
(other than shares held in an Individual Retirement Account or Custodial Account
under Section 403(b)(7) of the Internal Revenue Code) whose shares due to
redemptions by the shareholder have a value of less than $100 as a result of
redemptions or repurchases or such lesser amount as may be fixed by the Trustees
or, in the case of an account opened through EasyInvest, if after twelve months
the shareholder has invested less than $1,000 in the account. However, before
the Fund redeems such shares and sends the proceeds to the shareholder, it will
notify the shareholder that the value of the shares is less than the applicable
amount and allow him or her sixty days to make an additional investment in an
amount which will increase the value of his or her account to at least the
applicable amount before the redemption is processed. No CDSC will be imposed on
any involuntary redemption.
 
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
    DIVIDENDS AND DISTRIBUTIONS.  The Fund declares dividends separately for
each Class of shares and intends to pay quarterly income dividends and to
distribute net short-term and net long-term capital gains, if any, at least once
each year. The Fund may, however, determine either to distribute or to retain
all or part of any long-term capital gains in any year for reinvestment.
 
    All dividends and any capital gains distributions will be paid in additional
shares of the same Class and automatically credited to the shareholder's account
without issuance of a share certificate unless the shareholder requests in
writing that all dividends and/or distributions be paid in cash. Shares acquired
by dividend and distribution reinvestments will not be subject to any front-end
sales charge or CDSC. Class B shares acquired through dividend and distribution
reinvestments will become eligible for conversion to Class A shares on a pro
rata basis. Distributions paid on Class A and Class D shares will be higher than
for Class B and Class C shares because distribution fees paid by Class B and
Class C shares are higher. (See "Shareholder Services--Automatic Investment of
Dividends and Distributions.")
 
    TAXES.  Because the Fund intends to distribute all of its net investment
income and capital gains to shareholders and otherwise remain qualified as a
regulated investment company under Subchapter M of the Internal Revenue Code, it
is not expected that the Fund will be required to pay any federal income tax.
Shareholders who are required to pay taxes on their income will normally have to
pay federal income taxes, and any state income taxes, on the dividends and
distributions they receive from the Fund. Such dividends and distributions, to
the extent that they are derived from net investment income or net short-term
capital gains, are taxable to the shareholder as ordinary income regardless of
whether the shareholder receives such payments in additional shares or in cash.
Any dividends declared in the last quarter of any calendar year which are paid
in the following year prior to February 1 will be deemed, for tax purposes, to
have been received by the shareholder in the prior year.
 
   
    Long-term and short-term capital gains may be generated by the sale of
portfolio securities by the Fund. Distributions of net long-term capital gains,
if any, are taxable to shareholders as long-term capital gains regardless of how
long a shareholder has held the Fund's shares and regardless of whether the
distribution is received in additional shares or in cash. Capital gains
distributions are not eligible for the corporate dividends received deduction.
    
 
   
    After the end of the calendar year, shareholders will be sent full
information on their dividends and capital gains distributions for tax purposes,
including the amount of dividends eligible for the Federal dividends received
deduction available to corporations. Shareholders will also be notified of their
proportionate share of long-term capital gains distributions that are eligible
for a reduced rate of tax under
    
 
                                       30
<PAGE>
   
the Taxpayer Relief Act of 1997. To avoid being subject to a 31% federal backup
withholding tax on taxable dividends, capital gains distributions and the
proceeds of redemptions and repurchases, shareholders' taxpayer identification
numbers must be furnished and certified as to their accuracy.
    
 
    The Fund may at times make payments from sources other than income or net
capital gains. Payments from such sources will, in effect, represent a return of
a portion of each shareholder's investment. All, or a portion, of such payments
will not be taxable to shareholders.
 
    Shareholders should consult their tax advisers as to the applicability of
the foregoing to their current situation.
 
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
    From time to time the Fund may quote its "yield" and/or its "total return"
in advertisements and sales literature. These figures are computed separately
for Class A, Class B, Class C and Class D shares. Both the yield and the total
return of the Fund are based on historical earnings and are not intended to
indicate future performance. The yield of each Class of the Fund is computed by
dividing the Class's net investment income over a 30-day period by an average
value (using the average number of shares entitled to receive dividends and the
maximum offering price per share at the end of the period), all in accordance
with applicable regulatory requirements. Such amount is compounded for six
months and then annualized for a twelve-month period to derive the Fund's yield
for each Class.
 
    The "average annual total return" of the Fund refers to a figure reflecting
the average annualized percentage increase (or decrease) in the value of an
initial investment in a Class of the Fund of $1,000 over periods of one and five
years, as well as over the life of the Fund. Average annual total return
reflects all income earned by the Fund, any appreciation or depreciation of the
Fund's assets, all expenses incurred by the applicable Class and all sales
charges which would be incurred by shareholders, for the period. It also assumes
reinvestment of all dividends and distributions paid by the Fund.
 
    In addition to the foregoing, the Fund may advertise its total return for
each Class over different periods of time by means of aggregate, average,
year-by-year or other types of total return figures. The Fund may also advertise
the growth of hypothetical investments of $10,000, $50,000 and $100,000 in each
Class of shares of the Fund. Such calculations may or may not reflect the
deduction of any sales charge which, if reflected, would reduce the performance
quoted. The Fund from time to time may also advertise its performance relative
to certain performance rankings and indexes compiled by independent
organizations (such as mutual fund performance rankings of Lipper Analytical
Services, Inc., the S&P 500 Stock Index and the Dow Jones Industrial Average).
 
ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------
 
    VOTING RIGHTS.  All shares of beneficial interest of the Fund are of $0.01
par value and are equal as to earnings, assets and voting privileges except that
each Class will have exclusive voting privileges with respect to matters
relating to distribution expenses borne solely by such Class or any other matter
in which the interests of one Class differ from the interests of any other
Class. In addition, Class B shareholders will have the right to vote on any
proposed material increase in Class A's expenses, if such proposal is submitted
separately to Class A shareholders. Also, as discussed herein, Class A, Class B
and
 
                                       31
<PAGE>
Class C bear the expenses related to the distribution of their respective
shares.
 
    The Fund is not required to hold Annual Meetings of Shareholders for action
by shareholder vote as may be required by the Act or the Declaration of Trust.
Under ordinary circumstances, the Trustees may be removed by action of the
Trustees or by the shareholders.
 
    Under Massachusetts law, shareholders of a business trust may, under certain
limited circumstances, be held personally liable as partners for obligations of
the Fund. However, the Declaration of Trust contains an express disclaimer of
shareholder liability for acts or obligations of the Fund, requires that notice
of such Fund obligations include such disclaimer, and provides for
indemnification and reimbursement of expenses out of the Fund's property for any
shareholder held personally liable for the obligations of the Fund. Thus, the
risk of a shareholder incurring financial loss on account of shareholder
liability is limited to circumstances in which the Fund itself would be unable
to meet its obligations. Given the above limitations on shareholder personal
liability, and the nature of the Fund's assets and operations, in the opinion of
Massachusetts counsel to the Fund, the risk to Fund shareholders of personal
liability is remote.
 
    CODE OF ETHICS.  Directors, officers and employees of InterCapital, Dean
Witter Services Company Inc. and the Distributor are subject to a strict Code of
Ethics adopted by those companies. The Code of Ethics is intended to ensure that
the interests of shareholders and other clients are placed ahead of any personal
interest, that no undue personal benefit is obtained from a person's employment
activities and that actual and potential conflicts of interest are avoided. To
achieve these goals and comply with regulatory requirements, the Code of Ethics
requires, among other things, that personal securities transactions by employees
of the companies be subject to an advance clearance process to monitor that no
Dean Witter Fund is engaged at the same time in a purchase or sale of the same
security. The Code of Ethics bans the purchase of securities in an initial
public offering, and also prohibits engaging in futures and options transactions
and profiting on short-term trading (that is, a purchase within sixty days of a
sale or a sale within sixty days of a purchase) of a security. In addition,
investment personnel may not purchase or sell a security for their personal
account within thirty days before or after any transaction in any Dean Witter
Fund managed by them. Any violations of the Code of Ethics are subject to
sanctions, including reprimand, demotion or suspension or termination of
employment. The Code of Ethics comports with regulatory requirements and the
recommendations in the 1994 report by the Investment Company Institute Advisory
Group on Personal Investing.
 
    MASTER/FEEDER CONVERSION.  The Fund reserves the right to seek to achieve
its investment objective by investing all of its investable assets in a
diversified, open-end management investment company having the same investment
objective and policies and substantially the same investment restrictions as
those applicable to the Fund.
 
    SHAREHOLDER INQUIRIES.  All inquiries regarding the Fund should be directed
to the Fund at the telephone numbers or address set forth on the front cover of
this Prospectus.
 
                                       32
<PAGE>
Dean Witter
Utilities Fund
Two World Trade Center
New York, New York 10048
 
TRUSTEES
 
   
Michael Bozic
Charles A. Fiumefreddo
Edwin J. Garn
John R. Haire
Wayne E. Hedien
Dr. Manuel H. Johnson
Michael E. Nugent
Philip J. Purcell
John L. Schroeder
    
 
OFFICERS
 
Charles A. Fiumefreddo
Chairman and Chief Executive Officer
 
Barry Fink
Vice President, Secretary and General Counsel
 
Edward F. Gaylor
Vice President
 
Thomas F. Caloia
Treasurer
 
CUSTODIAN
 
The Bank of New York
90 Washington Street
New York, New York 10286
 
TRANSFER AGENT AND
DIVIDEND DISBURSING AGENT
 
   
Dean Witter Trust FSB
Harborside Financial Center
Plaza Two
Jersey City, New Jersey 07311
    
 
INDEPENDENT ACCOUNTANTS
 
Price Waterhouse LLP
1177 Avenue of the Americas
New York, New York 10036
 
INVESTMENT MANAGER
 
Dean Witter InterCapital Inc.
 
DEAN WITTER
UTILITIES FUND
 
   
                               [PHOTO]
                                                    PROSPECTUS -- APRIL 27, 1998
    
<PAGE>
   
STATEMENT OF ADDITIONAL INFORMATION
APRIL 27, 1998                                                       DEAN WITTER
                                                                  UTILITIES FUND
    
 
- ------------------------------------------------------------
 
   
    Dean Witter Utilities Fund (the "Fund") is an open-end, diversified
management investment company whose investment objective is to provide current
income and long-term growth of income and capital. The Fund seeks to attain its
investment objective by investing in equity and fixed-income securities of
utility companies.
    
 
   
    A Prospectus for the Fund dated April 27, 1998, which provides the basic
information you should know before investing in the Fund, may be obtained
without charge from the Fund at the address or telephone numbers listed below or
from the Fund's Distributor, Dean Witter Distributors Inc., or from Dean Witter
Reynolds Inc. at any of its branch offices. This Statement of Additional
Information is not a Prospectus. It contains information in addition to and more
detailed than that set forth in the Prospectus. It is intended to provide
additional information regarding the activities and operations of the Fund, and
should be read in conjunction with the Prospectus.
    
 
Dean Witter
Utilities Fund
Two World Trade Center
New York, New York 10048
(212) 392-2550
or (800) 869-NEWS
<PAGE>
TABLE OF CONTENTS
- --------------------------------------------------------------------------------
 
   
<TABLE>
<S>                                                                                      <C>
The Fund and its Management............................................................          3
 
Trustees and Officers..................................................................          6
 
Investment Practices and Policies......................................................         13
 
Investment Restrictions................................................................         28
 
Portfolio Transactions and Brokerage...................................................         29
 
The Distributor........................................................................         31
 
Determination of Net Asset Value.......................................................         35
 
Purchase of Fund Shares................................................................         36
 
Shareholder Services...................................................................         38
 
Redemptions and Repurchases............................................................         43
 
Dividends, Distributions and Taxes.....................................................         44
 
Performance Information................................................................         46
 
Description of Shares..................................................................         48
 
Custodian and Transfer Agent...........................................................         48
 
Independent Accountants................................................................         48
 
Reports to Shareholders................................................................         49
 
Legal Counsel..........................................................................         49
 
Experts................................................................................         49
 
Registration Statement.................................................................         49
 
Financial Statements--December 31, 1997................................................         50
 
Report of Independent Accountants......................................................         67
 
Appendix...............................................................................         69
</TABLE>
    
 
                                       2
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
THE FUND
 
    The Fund is a Trust of the type commonly known as a "Massachusetts business
trust" and was organized under the laws of the Commonwealth of Massachusetts on
December 8, 1987.
 
THE INVESTMENT MANAGER
 
    Dean Witter InterCapital Inc. (the "Investment Manager" or "InterCapital"),
a Delaware corporation, whose address is Two World Trade Center, New York, New
York 10048, is the Fund's Investment Manager. InterCapital is a wholly-owned
subsidiary of Morgan Stanley, Dean Witter, Discover & Co. ("MSDWD"), a Delaware
corporation. In an internal reorganization which took place in January, 1993,
InterCapital assumed the investment advisory, administrative and management
activities previously performed by the InterCapital Division of Dean Witter
Reynolds Inc. ("DWR"), a broker-dealer affiliate of InterCapital. (As
hereinafter used in this Statement of Additional Information, the terms
"InterCapital" and "Investment Manager" refer to DWR's InterCapital Division
prior to the internal reorganization and to Dean Witter InterCapital Inc.
thereafter.) The daily management of the Fund is conducted by or under the
direction of officers of the Fund and of the Investment Manager, subject to
review by the Fund's Board of Trustees. Information as to these Trustees and
officers is contained under the caption "Trustees and Officers".
 
   
    The Investment Manager is also the investment manager or investment adviser
of the following investment companies: Dean Witter Liquid Asset Fund Inc.,
InterCapital Income Securities Inc., InterCapital Insured Municipal Bond Trust,
InterCapital Insured Municipal Trust, InterCapital Insured Municipal Income
Trust, InterCapital California Insured Municipal Income Trust, InterCapital
Insured Municipal Securities, InterCapital Insured California Municipal
Securities, InterCapital Quality Municipal Investment Trust, InterCapital
Quality Municipal Income Trust, InterCapital Quality Municipal Securities,
InterCapital California Quality Municipal Securities, InterCapital New York
Quality Municipal Securities, High Income Advantage Trust, High Income Advantage
Trust II, High Income Advantage Trust III, Dean Witter Government Income Trust,
Dean Witter High Yield Securities Inc., Dean Witter Tax-Free Daily Income Trust,
Dean Witter Developing Growth Securities Trust, Dean Witter Tax-Exempt
Securities Trust, Dean Witter Natural Resource Development Securities Inc., Dean
Witter Dividend Growth Securities Inc., Dean Witter American Value Fund, Dean
Witter U.S. Government Money Market Trust, Dean Witter Variable Investment
Series, Dean Witter World Wide Investment Trust, Dean Witter Select Municipal
Reinvestment Fund, Dean Witter California Tax-Free Income Fund, Dean Witter New
York Tax-Free Income Fund, Dean Witter Convertible Securities Trust, Dean Witter
Federal Securities Trust, Dean Witter Value-Added Market Series, Dean Witter
World Wide Income Trust, Dean Witter Intermediate Income Securities, Dean Witter
Utilities Fund, Dean Witter California Tax-Free Daily Income Trust, Dean Witter
Strategist Fund, Dean Witter Capital Growth Securities, Dean Witter New York
Municipal Money Market Trust, Dean Witter European Growth Fund Inc., Dean Witter
Precious Metals and Minerals Trust, Dean Witter Global Short-Term Income Fund
Inc., Dean Witter Pacific Growth Fund Inc., Dean Witter Multi-State Municipal
Series Trust, Dean Witter Short-Term U.S. Treasury Trust, Dean Witter
Diversified Income Trust, Dean Witter Health Sciences Trust, Dean Witter
Retirement Series, Dean Witter Global Dividend Growth Securities, Dean Witter
Limited Term Municipal Trust, Dean Witter Short-Term Bond Fund, Dean Witter
Global Utilities Fund, Dean Witter International Small Cap Fund, Dean Witter
Mid-Cap Growth Fund, Dean Witter Select Dimensions Investment Series, Dean
Witter Global Asset Allocation Fund, Dean Witter Balanced Growth Fund, Dean
Witter Balanced Income Fund, Dean Witter Hawaii Municipal Trust, Dean Witter
Capital Appreciation Fund, Dean Witter Information Fund, Dean Witter
Intermediate Term U.S. Treasury Trust, Dean Witter Japan Fund, Dean Witter
Income Builder Fund, Dean Witter Special Value Fund, Dean Witter Financial
Sevices Trust, Dean Witter Market Leader Trust, Dean Witter S&P 500 Fund, Dean
Witter Fund of Funds, Morgan Stanley Dean Witter Competitive Edge Fund, "BEST
IDEAS" Portfolio, Active Assets Money Trust, Active Assets Tax-Free Trust,
Active Assets California Tax-Free Trust, Active Assets Government Securities
Trust, Municipal Income Trust, Municipal Income Trust II, Municipal Income
    
 
                                       3
<PAGE>
Trust III, Municipal Income Opportunities Trust, Municipal Income Opportunities
Trust II, Municipal Income Opportunities Trust III, Prime Income Trust and
Municipal Premium Income Trust. The foregoing investment companies, together
with the Fund, are collectively referred to as the Dean Witter Funds.
 
   
    In addition, Dean Witter Services Company Inc. ("DWSC"), a wholly-owned
subsidiary of InterCapital, serves as manager for the following companies for
which TCW Funds Management, Inc. is the investment adviser: TCW/DW Core Equity
Trust, TCW/DW North American Government Income Trust, TCW/DW Latin American
Growth Fund, TCW/DW Income and Growth Fund, TCW/DW Small Cap Growth Fund, TCW/DW
Balanced Fund TCW/DW Total Return Trust, TCW/DW Mid-Cap Equity Trust, TCW/DW
Global Telecom Trust, TCW/DW Strategic Income Trust, TCW/DW Emerging Markets
Opportunities Trust, TCW/DW Term Trust 2000, TCW/DW Term Trust 2002 and TCW/DW
Term Trust 2003 (the "TCW/ DW Funds"). InterCapital also serves as: (i)
administrator of The BlackRock Strategic Term Trust Inc., a closed-end
investment company; (ii) sub-administrator of MassMutual Participation Investors
and Templeton Global Governments Income Trust, closed-end investment companies;
and (iii) investment adviser of Offshore Dividend Growth Fund and Offshore Money
Market Fund, mutual funds established under the laws of the Cayman Islands and
available only to investors who are participants in DWR's International Active
Assets Account program and are neither citizens nor residents of the United
States.
    
 
    Pursuant to an Investment Management Agreement (the "Agreement") with the
Investment Manager, the Fund has retained the Investment Manager to manage the
investment of the Fund's assets, including the placing of orders for the
purchase and sale of portfolio securities. The Investment Manager obtains and
evaluates such information and advice relating to the economy, securities
markets and specific securities as it considers necessary or useful to
continuously manage the assets of the Fund in a manner consistent with its
investment objective.
 
    Under the terms of the Agreement, in addition to managing the Fund's
investments, the Investment Manager maintains certain of the Fund's books and
records and furnishes, at its own expense, such office space, facilities,
equipment, clerical help, bookkeeping and certain legal services as the Fund may
reasonably require in the conduct of its business, including the preparation of
prospectuses, statements of additional information, proxy statements and reports
required to be filed with federal and state securities commissions (except
insofar as the participation or assistance of independent accountants and
attorneys is, in the opinion of the Investment Manager, necessary or desirable).
In addition, the Investment Manager pays the salaries of all personnel,
including officers of the Fund, who are employees of the Investment Manager. The
Investment Manager also bears the cost of telephone service, heat, light, power
and other utilities provided to the Fund.
 
    Effective December 31, 1993, pursuant to a Services Agreement between
InterCapital and DWSC, DWSC began to provide the administrative services to the
Fund which were previously performed directly by InterCapital. On April 17,
1995, DWSC was reorganized in the State of Delaware, necessitating the entry
into a new Services Agreement by Intercapital and DWSC on that date. The
foregoing internal reorganizations did not result in any change in the nature or
scope of the administrative services being provided to the Fund or any of the
fees being paid by the Fund for the overall services being performed under the
terms of the existing Management Agreement.
 
   
    Expenses not expressly assumed by the Investment Manager under the Agreement
or by the Distributor of the Fund's shares, Dean Witter Distributors Inc.
("Distributors" or the "Distributor") (see "The Distributor"), will be paid by
the Fund. These expenses will be allocated among the four classes of shares of
the Fund (each, a "Class") pro rata based on the net assets of the Fund
attributable to each Class, except as described below. Such expenses borne by
the Fund include, but are not limited to: expenses of the Plan of Distribution
pursuant to Rule 12b-1 (the "12b-1 fee") (see "The Distributor"); charges and
expenses of any registrar, custodian, stock transfer and dividend disbursing
agent; brokerage commissions; taxes; engraving and printing of share
certificates; registration costs of the Fund and its shares under federal and
state securities laws; the cost and expense of printing, including typesetting,
and distributing Prospectuses and Statements of Additional Information of the
Fund and supplements thereto to the Fund's shareholders; all expenses of
shareholders' and Trustees' meetings and of
    
 
                                       4
<PAGE>
preparing, printing and mailing of proxy statements and reports to shareholders;
fees and travel expenses of Trustees or members of any advisory board or
committee who are not employees of the Investment Manager or any corporate
affiliate of the Investment Manager; all expenses incident to any dividend,
withdrawal or redemption options; charges and expenses of any outside service
used for pricing of the Fund's shares; fees and expenses of legal counsel,
including counsel to the Trustees who are not interested persons of the Fund or
of the Investment Manager (not including compensation or expenses of attorneys
who are employees of the Investment Manager) and independent accountants;
membership dues of industry associations; interest on Fund borrowings; postage;
insurance premiums on property or personnel (including officers and Trustees) of
the Fund which inure to its benefit; extraordinary expenses (including, but not
limited to, legal claims and liabilities and litigation costs and any
indemnification relating thereto); and all other costs of the Fund's operation.
The 12b-1 fees relating to a particular Class will be allocated directly to that
Class. In addition, other expenses associated with a particular Class (except
advisory or custodial fees) may be allocated directly to that Class, provided
that such expenses are reasonably identified as specifically attributable to
that Class and the direct allocation to that Class is approved by the Trustees.
 
   
    As full compensation for the services and facilities furnished to the Fund
and expenses of the Fund assumed by the Investment Manager, the Fund pays the
Investment Manager monthly compensation calculated daily by applying the
following annual rates to the net assets of the Fund as of the close of each
business day: 0.65% of the portion of the daily net assets not exceeding $500
million; 0.55% of the portion of the daily net assets exceeding $500 million but
not exceeding $1 billion; 0.525% of the portion of the daily net assets
exceeding $1 billion but not exceeding $1.5 billion; 0.50% of the portion of the
daily net assets exceeding $1.5 billion but not exceeding $2.5 billion; 0.475%
of the portion of daily net assets exceeding $2.5 billion but not exceeding $3.5
billion; 0.45% of the portion of the daily net assets exceeding $3.5 billion but
not exceeding $5 billion; and 0.425% of the portion of the net assets exceeding
$5 billion. The management fee is allocated among the Classes pro rata based on
the net assets of the Fund attributable to each Class. Total compensation
accrued to the Investment Manager for the fiscal years ended December 31, 1995,
1996 and 1997 amounted to $16,134,816, $15,787,095 and $13,037,906 respectively.
    
 
    The Agreement provides that in the absence of willful misfeasance, bad
faith, gross negligence or reckless disregard of its obligations thereunder, the
Investment Manager is not liable to the Fund or any of its investors for any act
or omission by the Investment Manager or for any losses sustained by the Fund or
its investors. The Agreement in no way restricts the Investment Manager from
acting as investment manager or adviser to others.
 
    The Agreement was initially approved by the Board of Trustees on February
21, 1997 and by the shareholders of the Fund at a Special Meeting of
Shareholders held on May 21, 1997. The Agreement is substantially identical to a
prior investment management agreement which was initially approved by the Board
of Trustees on October 30, 1992 and by the shareholders of the Fund at a Special
Meeting of Shareholders held on January 12, 1993. The Agreement took effect on
May 31, 1997 upon the consummation of the merger of Dean Witter, Discover & Co.
with Morgan Stanley Group Inc. The Agreement may be terminated at any time,
without penalty, on thirty days' notice by the Board of Trustees of the Fund, by
the holders of a majority, as defined in the Investment Company Act of 1940 (the
"Act"), of the outstanding shares of the Fund, or by the Investment Manager. The
Agreement will automatically terminate in the event of its assignment (as
defined in the Act).
 
   
    Under its terms, the Agreement has an initial term ending April 30, 1999,
and will remain in effect from year to year thereafter, provided continuance of
the Agreement is approved at least annually by the vote of the holders of a
majority, as defined in the Act, of the outstanding shares of the Fund, or by
the Trustees of the Fund; provided that in either event such continuance is
approved annually by the vote of a majority of the Independent Trustees, which
vote must be cast in person at a meeting called for the purpose of voting on
such approval.
    
 
                                       5
<PAGE>
   
    The following owned 5% or more of the outstanding shares of Class A on
February 5, 1998: Private Scavengers Health & Welfare Fund Local Union #731,
I.B. of T, ATTN: William Woldman, 1100 East 31st Street, PO Box 1407, Lagrange
Park, IL 60526-9507--11.97%; Dean Witter Trust FSB Trustee FBO Jean Mary Fleming
Char Reman Unitrust DTD 7/7/97, PO Box 957, Jersey City, NJ 07303-0957--11.83%;
Local 731 IBT Health & Welfare Fund, ATTN: William Woldman, 1100 East 31st
Street, PO Box 1407, LaGrange Park, IL 60526-9507--8.61%; Dean Witter Trust FSB
Trustee, FBO Edward Thomas Family Trust U/W DTD 8-16-91, PO Box 957, Jersey
City, NJ 07303-0957--6.35%; Kowalski Companies Inc. Tax Deferred Plan for Non
Unionized Employees, PO Box 957, Jersey City, NJ 07311-3977--5.55%; Dean Witter
Trust FSB Trustee, FBO Richard K. Allen and Dorothy B Allen Rev Trust Husband
and Wife Share, PO Box 957, Jersey City, NJ 07303-0957--5.53%; Dean Witter Trust
FSB Trustee, FBO Mildred Harris Grantor Retained Annuity Trust 3/12/96, PO Box
957, Jersey City, NJ 07303-0957--5.26%.
    
 
   
    The following owned 5% or more of the outstanding shares of Class C on
February 5, 1998: Harry Lewis & Janet J. Lewis, TTEES F/T Harry & Janet Lewis
Revocable TR DTD 3/29/95 A/C #1, PO Box 352, Pebble Beach, CA
93953-0352--25.56%; Dean Witter Reynolds Cust for Darrell G. Owens, IRA Rollover
Dated 07/22/97, 22406 W 73 Terr, Shawnee Mission, KS 66227-2100--6.22%; Takeshi
Mori Alcasal Meguro Hanabusayama, 405 3-10-50 Kamiosaki Shinagawa Ku, Tokyo J
PA--5.61%.
    
 
   
    The following owned 5% or more of the outstanding shares of Class D on
February 5, 1998: MAC & CO. A/C DWRF 8604612, Mellon Bank, N.A. Mutual Funds
Operations, PO Box 3198, Pittsburgh, PA 15230-3198--91.3%; IAM & AW Local Lodge
PM#2848, Multi-Emp Wage Reduc 401K PSP 3/6/86 TTEE J Winterhalter, PO Box 3039,
Birmingham, MI 48012-3039--5.59%.
    
 
    The Fund has acknowledged that the name "Dean Witter" is a property right of
DWR. The Fund has agreed that DWR or its parent companies may use, or at any
time permit others to use, the name "Dean Witter". The Fund has also agreed that
in the event the investment management contract between InterCapital and the
Fund is terminated, or if the affiliation between InterCapital and its parent
company is terminated, the Fund will eliminate the name "Dean Witter" from its
name if DWR or its parent company shall so request.
 
TRUSTEES AND OFFICERS
- --------------------------------------------------------------------------------
 
    The Trustees and Executive Officers of the Fund, their principal business
occupations during the last five years and their affiliations, if any, with
InterCapital, and with the 83 Dean Witter Funds and the 14 TCW/DW Funds are
shown below.
 
   
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Michael Bozic (57)                                      Chairman and Chief Executive Officer of Levitz Furniture
Trustee                                                 Corporation (since November, 1995); Director or Trustee of
c/o Levitz Furniture Corporation                        the Dean Witter Funds; formerly President and Chief
6111 Broken Sound Parkway, N.W.                         Executive Officer of Hills Department Stores (May,
Boca Raton, Florida                                     1991-July, 1995); formerly variously Chairman, Chief
                                                        Executive Officer, President and Chief Operating Officer
                                                        (1987-1991) of the Sears Merchandise Group of Sears,
                                                        Roebuck and Co.; Director of Eaglemark Financial Services,
                                                        Inc., the United Negro College Fund and Weirton Steel Cor-
                                                        poration.
</TABLE>
    
 
                                       6
<PAGE>
   
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Charles A. Fiumefreddo* (64)                            Chairman, Chief Executive Officer and Director of
Chairman, President, Chief                              InterCapital, Dean Witter Distributors Inc. ("Distribu-
 Executive Officer and Trustee                          tors") and Dean Witter Services Company Inc. ("DWSC");
Two World Trade Center                                  Executive Vice President and Director of DWR; Chairman,
New York, New York                                      Director or Trustee, President and Chief Executive Officer
                                                        of the Dean Witter Funds; Chairman, Chief Executive
                                                        Officer and Trustee of the TCW/DW Funds; Chairman and
                                                        Director of Dean Witter Trust FSB ("DWT"); Director and/or
                                                        officer of various MSDWD subsidiaries; formerly Executive
                                                        Vice President and Director of Dean Witter Discover & Co.
                                                        (until February, 1993).
 
Edwin J. Garn (65)                                      Director or Trustee of the Dean Witter Funds; formerly
Trustee                                                 United States Senator (R-Utah) (1974-1992) and Chairman,
c/o Huntsman Corporation                                Senate Banking Committee (1980-1986); formerly Mayor of
500 Huntsman Way                                        Salt Lake City, Utah (1972-1974); formerly Astronaut,
Salt Lake City, Utah                                    Space Shuttle Discovery (April 12-19, 1985); Vice
                                                        Chairman, Huntsman Chemical Corporation (since January,
                                                        1993); Director of Franklin Covey (time management
                                                        systems), John Alden Financial Corp. (health insurance),
                                                        United Space Alliance (joint venture between Lockheed
                                                        Martin and the Boeing Company) and Nuskin Asia Pacific
                                                        (multilevel marketing); member of the board of various
                                                        civic and charitable organizations.
 
John R. Haire (73)                                      Chairman of the Audit Committee and Chairman of the
Trustee                                                 Committee of the Independent Directors or Trustees and
Two World Trade Center                                  Director or Trustee of the Dean Witter Funds; Chairman of
New York, New York                                      the Audit Committee and Chairman of the Committee of the
                                                        Independent Trustees and Trustee of the TCW/DW Funds;
                                                        formerly President, Council for Aid to Education
                                                        (1978-1989) and Chairman and Chief Executive Officer of
                                                        Anchor Corporation, an Investment Adviser (1964-1978);
                                                        Director of Washington National Corporation (insurance).
 
Wayne E. Hedien (64)                                    Retired, Director or Trustee of the Dean Witter Funds
Trustee                                                 (commencing on September 1, 1997); Director of The PMI
c/o Gordon Altman Butowsky                              Group, Inc. (private mortgage insurance); Trustee and Vice
 Weitzen Shalov & Wein                                  Chairman of The Field Museum of Natural History; formerly
Counsel to the Independent Trustees                     associated with the Allstate Companies (1966-1994), most
114 West 47th Street                                    recently as Chairman of The Allstate Corporation (March,
New York, New York                                      1993-December, 1994) and Chairman and Chief Executive
                                                        Officer of its wholly-owned subsidiary, Allstate Insurance
                                                        Company (July, 1989-December, 1994); director of various
                                                        other business and charitable organizations.
</TABLE>
    
 
                                       7
<PAGE>
   
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Dr. Manuel H. Johnson (49)                              Senior Partner, Johnson Smick International, Inc., a
Trustee                                                 consulting firm; Co-Chairman and a founder of the Group of
c/o Johnson Smick International Inc.                    Seven Council (G7C), an international economic commission;
1133 Connecticut Avenue, N.W.                           Director or Trustee of the Dean Witter Funds; Trustee of
Washington, D.C.                                        the TCW/DW Funds; Director of NASDAQ (since June, 1995);
                                                        Director of Greenwich Capital Markets Inc.
                                                        (broker-dealer); Chairman and Trustee of the Financial
                                                        Accounting Foundation (oversight organization for the
                                                        Financial Accounting Standards Board); formerly Vice
                                                        Chairman of the Board of Governors of the Federal Reserve
                                                        System (1986-1990) and Assistant Secretary of the U.S.
                                                        Treasury.
 
Michael E. Nugent (61)                                  General Partner, Triumph Capital, L.P., a private in-
Trustee                                                 vestment partnership; Director or Trustee of the Dean
c/o Triumph Capital, L.P.                               Witter Funds; Trustee of the TCW/DW Funds; formerly Vice
237 Park Avenue                                         President, Bankers Trust Company and BT Capital
New York, New York                                      Corporation (1984-1988); Director of various business
                                                        organizations.
 
Philip J. Purcell* (54)                                 Chairman of the Board of Directors and Chief Executive
Trustee                                                 Officer of MSDWD, DWR and Novus Credit Services Inc.;
1585 Broadway                                           Director of InterCapital, DWSC and Distributors; Director
New York, New York                                      or Trustee of the Dean Witter Funds; Director and/or
                                                        officer of various MSDWD subsidiaries.
 
John L. Schroeder (67)                                  Retired; Director or Trustee of the Dean Witter Funds;
Trustee                                                 Trustee of the TCW/DW Funds; Director of Citizens
c/o Gordon Altman Butowsky                              Utilities Company; Formerly Executive Vice President and
 Weitzen Shalov & Wein                                  Chief Investment Officer of the Home Insurance Company
Counsel to the Independent Trustees                     (August, 1991-September, 1995).
114 West 47th Street
New York, New York
 
Barry Fink (43)                                         Senior Vice President (since March, 1997) and Secretary
Vice President, Secretary                               and General Counsel (since February, 1997) of InterCapital
 and General Counsel                                    and DWSC; Senior Vice President (since March, 1997) and
Two World Trade Center                                  Assistant Secretary and Assistant General Counsel (since
New York, New York                                      February, 1997) of Distributors; Assistant Secretary of
                                                        DWR (since August, 1996); Vice President, Secretary and
                                                        General Counsel of Dean Witter Funds and the TCW/DW Funds
                                                        (since February, 1997); previously First Vice President
                                                        (June, 1993-February, 1997), Vice President (until June,
                                                        1993) and Assistant Secretary and Assistant General
                                                        Counsel of InterCapital and DWSC and Assistant Secretary
                                                        of the Dean Witter Funds and the TCW/DW Funds.
</TABLE>
    
 
                                       8
<PAGE>
<TABLE>
<CAPTION>
      NAME, AGE, POSITION WITH FUND AND ADDRESS                PRINCIPAL OCCUPATION DURING LAST FIVE YEARS
- ------------------------------------------------------  ----------------------------------------------------------
<S>                                                     <C>
Edward F. Gaylor (56)                                   Senior Vice President of InterCapital and Vice President
Vice President                                          of various Dean Witter Funds.
Two World Trade Center
New York, New York
 
Thomas F. Caloia (51)                                   First Vice President and Assistant Treasurer of Inter-
Treasurer                                               Capital and DWSC; Treasurer of the Dean Witter Funds and
Two World Trade Center                                  the TCW/DW Funds.
New York, New York
</TABLE>
 
- ---------
*Denotes Trustees who are "interested persons" of the Fund, as defined in the
 Act.
 
   
    In addition, Robert M. Scanlan, President of InterCapital and Chief
Operating Officer of InterCapital, DWSC, Executive Vice President of
Distributors and DWT and a Director of DWT, Mitchell M. Merin, President and
Chief Strategic Officer of InterCapital and DWSC, Executive Vice President of
Distributors and DWT and Director of DWT, Executive Vice President and Director
of DWR, and Director of SPS Transaction Services, Inc. and various other MSDWD
subsidiaries. Robert S. Giambrone, Senior Vice President of InterCapital, DWSC,
Distributors and DWT and a Director of DWT, Joseph J. McAlinden, Executive Vice
President and Chief Investment Officer of InterCapital and a Director of DWT,
Kenton J. Hinchliffe, Kevin Hurley, Ira N. Ross and Paul D. Vance, Senior Vice
Presidents of InterCapital, and Paula LaCosta, Vice President of InterCapital
are Vice Presidents of the Fund. In addition, Marilyn K. Cranney, First Vice
President and Assistant General Counsel of InterCapital and DWSC and Lou Anne D.
McInnis, Ruth Rossi and Carsten Otto, Vice Presidents and Assistant General
Counsels of InterCapital and DWSC, and Frank Bruttomesso and Todd Lebo, Staff
Attorneys with InterCapital, are Assistant Secretaries of the Fund.
    
 
   
THE BOARD OF TRUSTEES, THE INDEPENDENT TRUSTEES, AND THE COMMITTEES
    
 
   
    The Board of Trustees consists of nine (9) trustees. These same individuals
also serve as directors or trustees for all of the Dean Witter Funds, and are
referred to in this section as Trustees. As of the date of this Statement of
Additional Information, there are a total of 84 Dean Witter Funds, comprised of
128 portfolios. As of January 31, 1998, the Dean Witter Funds had total net
assets of approximately $96 billion and more than six million shareholders.
    
 
   
    Seven Trustees (77% of the total number) have no affiliation or business
connection with InterCapital or any of its affiliated persons and do not own any
stock or other securities issued by InterCapital's parent company, MSDWD. These
are the "disinterested" or "independent" Trustees. The other two Trustees (the
"management Trustees") are affiliated with InterCapital. Four of the seven
independent Trustees are also Independent Trustees of the TCW/DW Funds.
    
 
   
    Law and regulation establish both general guidelines and specific duties for
the Independent Trustees. The Dean Witter Funds seek as Independent Trustees
individuals of distinction and experience in business and finance, government
service or academia; these are people whose advice and counsel are in demand by
others and for whom there is often competition. To accept a position on the
Funds' Boards, such individuals may reject other attractive assignments because
the Funds make substantial demands on their time. Indeed, by serving on the
Funds' Boards, certain Trustees who would otherwise be qualified and in demand
to serve on bank boards would be prohibited by law from doing so.
    
 
   
    All of the Independent Trustees serve as members of the Audit Committee and
the Committee of the Independent Trustees. Three of them also serve as members
of the Derivatives Committee. During the calendar year ended December 31, 1997,
the three Committees held a combined total of seventeen meetings. The Committees
hold some meetings at InterCapital's offices and some outside InterCapital.
Management Trustees or officers do not attend these meetings unless they are
invited for purposes of furnishing information or making a report.
    
 
                                       9
<PAGE>
   
    The Committee of the Independent Trustees is charged with recommending to
the full Board approval of management, advisory and administration contracts,
Rule 12b-1 plans and distribution and underwriting agreements; continually
reviewing Fund performance; checking on the pricing of portfolio securities,
brokerage commissions, transfer agent costs and performance, and trading among
Funds in the same complex; and approving fidelity bond and related insurance
coverage and allocations, as well as other matters that arise from time to time.
The Independent Trustees are required to select and nominate individuals to fill
any Independent Trustee vacancy on the Board of any Fund that has a Rule 12b-1
plan of distribution. Most of the Dean Witter Funds have such a plan.
    
 
   
    The Audit Committee is charged with recommending to the full Board the
engagement or discharge of the Fund's independent accountants; directing
investigations into matters within the scope of the independent accountants'
duties, including the power to retain outside specialists; reviewing with the
independent accountants the audit plan and results of the auditing engagement;
approving professional services provided by the independent accountants and
other accounting firms prior to the performance of such services; reviewing the
independence of the independent accountants; considering the range of audit and
non-audit fees; reviewing the adequacy of the Fund's system of internal
controls; and preparing and submitting Committee meeting minutes to the full
Board.
    
 
   
    Finally, the Board of each Fund has formed a Derivatives Committee to
establish parameters for and oversee the activities of the Fund with respect to
derivative investments, if any, made by the Fund.
    
 
   
DUTIES OF CHAIRMAN OF COMMITTEE OF THE INDEPENDENT TRUSTEES AND AUDIT COMMITTEE
    
 
   
    The Chairman of the Committee of the Independent Trustees and the Audit
Committee maintains an office at the Funds' headquarters in New York. He is
responsible for keeping abreast of regulatory and industry developments and the
Funds' operations and management. He screens and/or prepares written materials
and identifies critical issues for the Independent Trustees to consider,
develops agendas for Committee meetings, determines the type and amount of
information that the Committees will need to form a judgment on various issues,
and arranges to have that information furnished to Committee members. He also
arranges for the services of independent experts and consults with them in
advance of meetings to help refine reports and to focus on critical issues.
Members of the Committees believe that the person who serves as Chairman of both
Committees and guides their efforts is pivotal to the effective functioning of
the Committees.
    
 
   
    The Chairman of the Committees also maintains continuous contact with the
Funds' management, with independent counsel to the Independent Trustees and with
the Funds' independent auditors. He arranges for a series of special meetings
involving the annual review of investment advisory, management and other
operating contracts of the Funds and, on behalf of the Committees, conducts
negotiations with the Investment Manager and other service providers. In effect,
the Chairman of the Committees serves as a combination of chief executive and
support staff of the Independent Trustees.
    
 
   
    The Chairman of the Committee of the Independent Trustees and the Audit
Committee is not employed by any other organization and devotes his time
primarily to the services he performs as Committee Chairman and Independent
Trustee of the Dean Witter Funds and as an Independent Trustee and as Chairman
of the Committee of the Independent Trustees and the Audit Committee of the
TCW/DW Funds. The current Committee Chairman has had more than 35 years
experience as a senior executive in the investment company industry.
    
 
   
ADVANTAGES OF HAVING SAME INDIVIDUALS AS INDEPENDENT TRUSTEES FOR ALL DEAN
WITTER FUNDS
    
 
   
    The Independent Trustees and the Funds' management believe that having the
same Independent Trustees for each of the Dean Witter Funds avoids the
duplication of effort that would arise from having different groups of
individuals serving as Independent Trustees for each of the Funds or even of
sub-groups of Funds. They believe that having the same individuals serve as
Independent Trustees of all the Funds tends to increase their knowledge and
expertise regarding matters which affect the Fund complex generally and enhances
their ability to negotiate on behalf of each Fund with the Fund's service
providers. This arrangement also precludes the possibility of separate groups of
Independent Trustees
    
 
                                       10
<PAGE>
   
arriving at conflicting decisions regarding operations and management of the
Funds and avoids the cost and confusion that would likely ensue. Finally, having
the same Independent Trustees serve on all Fund Boards enhances the ability of
each Fund to obtain, at modest cost to each separate Fund, the services of
Independent Trustees, and a Chairman of their Committees, of the caliber,
experience and business acumen of the individuals who serve as Independent
Trustees of the Dean Witter Funds.
    
 
   
COMPENSATION OF INDEPENDENT TRUSTEES
    
 
   
    The Fund pays each Independent Trustee an annual fee of $800 plus a per
meeting fee of $50 for meetings of the Board of Trustees or committees of the
Board of Trustees attended by the Trustee (the Fund pays the Chairman of the
Audit Committee an annual fee of $750 and pays the Chairman of the Committee of
the Independent Trustees an additional annual fee of $1,200). If a Board meeting
and a Committee meeting, or more than one Committee meeting, take place on a
single day, the Trustees are paid a single meeting fee by the Fund. The Fund
also reimburses such Trustees for travel and other out-of-pocket expenses
incurred by them in connection with attending such meetings. Trustees and
officers of the Fund who are or have been employed by the Investment Manager or
an affiliated company receive no compensation or expense reimbursement from the
Fund.
    
 
   
    The following table illustrates the compensation paid to the Fund's
Independent Trustees by the Fund for the fiscal year ended December 31, 1997.
    
 
   
                               FUND COMPENSATION
    
 
   
<TABLE>
<CAPTION>
                                                                   AGGREGATE
                                                                 COMPENSATION
NAME OF INDEPENDENT TRUSTEE                                      FROM THE FUND
- --------------------------------------------------------------  ---------------
<S>                                                             <C>
Michael Bozic.................................................      $1,650
Edwin J. Garn.................................................       1,850
John R. Haire.................................................       3,800
Wayne E. Hedien...............................................         482
Dr. Manuel H. Johnson.........................................       1,800
Michael E. Nugent.............................................       1,850
John L. Schroeder.............................................       1,850
</TABLE>
    
 
   
    The following table illustrates the compensation paid to the Fund's
Independent Trustees for the calendar year ended December 31, 1997 for services
to the 84 Dean Witter Funds and, in the case of Messrs. Haire, Johnson, Nugent
and Schroeder, the 14 TCW/DW Funds that were in operation at December 31, 1997.
With respect to Messrs. Haire, Johnson, Nugent and Schroeder, the TCW/DW Funds
are included solely because of a limited exchange privilege between those Funds
and five Dean Witter Money Market Funds. Mr. Hedien's term as Director or
Trustee of each Dean Witter Fund commenced on September 1, 1997.
    
 
                                       11
<PAGE>
   
           CASH COMPENSATION FROM DEAN WITTER FUNDS AND TCW/DW FUNDS
    
 
   
<TABLE>
<CAPTION>
                                                                   FOR SERVICE AS    FOR SERVICE
                                                                    CHAIRMAN OF          AS          TOTAL CASH
                                                                   COMMITTEES OF     CHAIRMAN OF    COMPENSATION
                               FOR SERVICE                          INDEPENDENT     COMMITTEES OF   FOR SERVICES
                              AS DIRECTOR OR                         DIRECTORS/      INDEPENDENT         TO
                               TRUSTEE AND       FOR SERVICE AS     TRUSTEES AND    TRUSTEES AND       84 DEAN
                             COMMITTEE MEMBER     TRUSTEE AND          AUDIT            AUDIT          WITTER
                                OF 84 DEAN      COMMITTEE MEMBER   COMMITTEES OF    COMMITTEES OF     FUNDS AND
NAME OF                           WITTER          OF 14 TCW/DW     84 DEAN WITTER     14 TCW/DW       14 TCW/DW
INDEPENDENT TRUSTEE               FUNDS              FUNDS             FUNDS            FUNDS           FUNDS
- ---------------------------  ----------------   ----------------   --------------   -------------   -------------
<S>                          <C>                <C>                <C>              <C>             <C>
Michael Bozic..............      $133,602           --                 --               --            $133,602
Edwin J. Garn..............       149,702           --                 --               --             149,702
John R. Haire..............       149,702           $73,725           $157,463        $ 25,350         406,240
Wayne E. Hedien............        39,010           --                 --               --              39,010
Dr. Manuel H. Johnson......       145,702            71,125            --               --             216,827
Michael E. Nugent..........       149,702            73,725            --               --             223,427
John L. Schroeder..........       149,702            73,725            --               --             223,427
</TABLE>
    
 
   
    As of the date of this Statement of Additional Information, 57 of the Dean
Witter Funds, including the Fund, have adopted a retirement program under which
an Independent Trustee who retires after serving for at least five years (or
such lesser period as may be determined by the Board) as an Independent Director
or Trustee of any Dean Witter Fund that has adopted the retirement program (each
such Fund referred to as an "Adopting Fund" and each such Trustee referred to as
an "Eligible Trustee") is entitled to retirement payments upon reaching the
eligible retirement age (normally, after attaining age 72). Annual payments are
based upon length of service. Currently, upon retirement, each Eligible Trustee
is entitled to receive from the Adopting Fund, commencing as of his or her
retirement date and continuing for the remainder of his or her life, an annual
retirement benefit (the "Regular Benefit") equal to 25.0% of his or her Eligible
Compensation plus 0.4166666% of such Eligible Compensation for each full month
of service as an Independent Director or Trustee of any Adopting Fund in excess
of five years up to a maximum of 50.0% after ten years of service. The foregoing
percentages may be changed by the Board.(1) "Eligible Compensation" is one-fifth
of the total compensation earned by such Eligible Trustee for service to the
Adopting Fund in the five year period prior to the date of the Eligible
Trustee's retirement. Benefits under the retirement program are not secured or
funded by the Adopting Funds.
    
 
   
    The following table illustrates the retirement benefits accrued to the
Fund's Independent Trustees by the Fund for the fiscal year ended December 31,
1997 and by the 57 Dean Witter Funds (including the Fund) for the year ended
December 31, 1997, and the estimated retirement benefits for the Fund's
Independent Trustees, to commence upon their retirement, from the Fund as of
December 31, 1997 and from the 57 Dean Witter Funds as of December 31, 1997.
    
 
- ---------
 
   
(1) An Eligible Trustee may elect alternate payments of his or her retirement
    benefits based upon the combined life expectancy of such Eligible Trustee
    and his or her spouse on the date of such Eligible Trustee's retirement. The
    amount estimated to be payable under this method, through the remainder of
    the later of the lives of such Eligible Trustee and spouse, will be the
    actuarial equivalent of the Regular Benefit. In addition, the Eligible
    Trustee may elect that the surviving spouse's periodic payment of benefits
    will be equal to either 50% or 100% of the previous periodic amount, an
    election that, respectively, increases or decreases the previous periodic
    amount so that the resulting payments will be the actuarial equivalent of
    the Regular Benefit.
    
 
                                       12
<PAGE>
   
          RETIREMENT BENEFITS FROM THE FUND AND ALL DEAN WITTER FUNDS
    
 
   
<TABLE>
<CAPTION>
                                            FOR ALL ADOPTING FUNDS           RETIREMENT BENEFITS      ESTIMATED ANNUAL
                                    --------------------------------------   ACCRUED AS EXPENSES          BENEFITS
                                         ESTIMATED                                                   UPON RETIREMENT(2)
                                      CREDITED YEARS         ESTIMATED      ---------------------  ----------------------
                                       OF SERVICE AT       PERCENTAGE OF                 BY ALL      FROM      FROM ALL
                                        RETIREMENT           ELIGIBLE        BY THE     ADOPTING      THE      ADOPTING
NAME OF INDEPENDENT TRUSTEE            (MAXIMUM 10)        COMPENSATION       FUND       FUNDS       FUND        FUNDS
- ----------------------------------  -------------------  -----------------  ---------  ----------  ---------  -----------
<S>                                 <C>                  <C>                <C>        <C>         <C>        <C>
Michael Bozic.....................              10               50.0%      $     370  $   20,499  $     925  $    47,025
Edwin J. Garn.....................              10               50.0             530      30,878        925       47,025
John R. Haire.....................              10               50.0            (901)    (19,823 (3)     2,246     127,897
Wayne E. Hedien...................               9               42.5               0           0        786       39,971
Dr. Manuel H. Johnson.............              10               50.0             224      12,832        925       47,025
Michael E. Nugent.................              10               50.0             380      22,546        925       47,025
John L. Schroeder.................               8               41.7             709      39,350        771       39,504
</TABLE>
    
 
- ---------
 
   
(2) Based on current levels of compensation. Amount of annual benefits also
    varies depending on the Trustee's elections described in Footnote (1) above.
    
 
   
(3) This number reflects the effect of the extension of Mr. Haire's term as
    Director or Trustee until June 1, 1998.
    
 
   
    As of the date of this Statement of Additional Information, the aggregate
number of shares of beneficial interest of the Fund owned by the Fund's officers
and Trustees as a group was less than 1 percent of the Fund's shares of
beneficial interest outstanding.
    
 
INVESTMENT PRACTICES AND POLICIES
- --------------------------------------------------------------------------------
 
   
    As stated in the Prospectus, the investment objective of the Fund is to
provide current income and long-term growth of income and capital. This
objective is fundamental and may not be changed without shareholder approval.
The Fund seeks to achieve its investment objective by investing in equity and
fixed-income securities of utility companies. The term "utility companies"
includes companies engaged in the manufacture, production, generation,
transmission, sale and distribution of water, gas and electric energy, companies
providing sanitary services, airport, seaport and toll road operations or who
manufacture or supply equipment for any of the foregoing companies, as well as
companies engaged in the communications field and the companies which
manufacture or supply equipment for such companies, including telephone,
telegraph, satellite, cable, micro-wave, radio-telephone, computer, mobile
communication and cellular paging, electronic mail, videotext and other new or
emerging technology companies. For purposes of the Fund, a company will be
considered to be a utility company if, during the most recent twelve month
period, at least 50% of the company's gross revenues, on a consolidated basis,
is derived from one or more of the businesses described in the foregoing
sentence. Under ordinary circumstances, at least 65% of the Fund's total assets
will be invested in utility companies.
    
 
   
    The Fund invests in both equity securities (common stocks and securities
convertible into common stock) and fixed-income securities (bonds and preferred
stock) of utility companies. The Fund does not have any set policies to
concentrate within any particular segment of the utilities industry. The Fund
will shift its asset allocation without restriction between types of utilities
and between equity and fixed-income securities based upon the Investment
Manager's determination of how to achieve the Fund's investment objective in
light of prevailing market, economic and financial conditions. For example, at a
particular time the Investment Manager may choose to allocate up to 100% of the
Fund's assets in a particular type of security (for example, equity securities)
or in a specific utility industry segment (for example, electric utilities).
    
 
    Criteria utilized by the Investment Manager in the selection of equity
securities include the following screens: earnings and dividend growth; book
value; dividend discount; and price/earnings relationships. In addition, the
Investment Manager makes continuing assessments of management, the prevailing
regulatory framework and industry trends. The Investment Manager may also
utilize computer-based
 
                                       13
<PAGE>
equity selection models in connection with stock allocation in the equity
portion of the Fund's portfolio. In keeping with the Fund's objective, if in the
opinion of the Investment Manager favorable conditions for capital growth of
equity securities are not prevalent at a particular time, the Fund may allocate
its assets predominantly or exclusively in debt securities with the aim of
obtaining current income as well as preserving capital and thus benefiting long
term growth of capital.
 
    The Fund may purchase equity securities sold on the New York, American and
other stock exchanges and in the over-the-counter market. Fixed-income
securities in which the Fund may invest are debt securities and preferred
stocks, which are rated at the time of purchase Baa or better by Moody's
Investors Service Inc. ("Moody's") or BBB or better by Standard & Poor's
Corporation ("S&P"), or which, if unrated, are deemed to be of comparable
quality by the Fund's Trustees. The Fund may also purchase equity and
fixed-income securities issued by foreign issuers. Under normal circumstances
the average weighted maturity of the debt portion of the Fund's portfolio is
expected to be in excess of seven years. A description of corporate bond ratings
is contained in the Appendix to the Statement of Additional Information.
 
    There may be periods during which, in the opinion of the Investment Manager,
market conditions warrant reduction of some or all of the Fund's securities
holdings. During such periods, the Fund may adopt a temporary "defensive"
posture in which greater than 35% of its net assets are invested in cash or
money market instruments. Money market instruments in which the Fund may invest
are securities issued or guaranteed by the U.S. Government (Treasury bills,
notes and bonds, including zero coupon securities); bank obligations; Eurodollar
certificates of deposit; obligations of savings institutions; fully insured
certificates of deposit; and commercial paper rated within the two highest
grades by Moody's or S&P or, if not rated, are issued by a company having an
outstanding debt issue rated at least AA by S&P or Aa by Moody's.
 
U.S. GOVERNMENT SECURITIES
 
    As discussed in the Prospectus, the Fund may invest up to 35% of its total
assets in, among other securities, securities issued by the U.S. Government, its
agencies or instrumentalities. Such securities include:
 
        (1) U.S. Treasury bills (maturities of one year or less), U.S. Treasury
    notes (maturities of one to ten years) and U.S. Treasury bonds (generally
    maturities of greater than ten years), all of which are direct obligations
    of the U.S. Government and, as such, are backed by the "full faith and
    credit" of the United States.
 
        (2) Securities issued by agencies and instrumentalities of the U.S.
    Government which are backed by the full faith and credit of the United
    States. Among the agencies and instrumentalities issuing such obligations
    are the Federal Housing Administration, the Government National Mortgage
    Association ("GNMA"), the Department of Housing and Urban Development, the
    Export-Import Bank, the Farmers Home Administration, the General Services
    Administration, the Maritime Administration and the Small Business
    Administration. The maturities of such obligations range from three months
    to 30 years.
 
        (3) Securities issued by agencies and instrumentalities which are not
    backed by the full faith and credit of the United States, but whose issuing
    agency or instrumentality has the right to borrow, to meet its obligations,
    from an existing line of credit with the U.S. Treasury. Among the agencies
    and instrumentalities issuing such obligations are the Tennessee Valley
    Authority, the Federal National Mortgage Association ("FNMA"), the Federal
    Home Loan Mortgage Corporation ("FHLMC") and the U.S. Postal Service.
 
        (4) Securities issued by agencies and instrumentalities which are not
    backed by the full faith and credit of the United States, but which are
    backed by the credit of the issuing agency or instrumentality. Among the
    agencies and instrumentalities issuing such obligations are the Federal Farm
    Credit System and the Federal Home Loan Banks.
 
                                       14
<PAGE>
    Neither the value nor the yield of the U.S. Government securities which may
be invested in by the Fund are guaranteed by the U.S. Government. Such values
and yield will fluctuate with changes in prevailing interest rates and other
factors. Generally, as prevailing interest rates rise, the value of any U.S.
Government securities held by the Fund will fall. Such securities with longer
maturities generally tend to produce higher yields and are subject to greater
market fluctuation as a result of changes in interest rates than debt securities
with shorter maturities. The Fund is not limited as to the maturities of the
U.S. Government securities in which it may invest with respect to 35% of its
total assets.
 
ZERO COUPON TREASURY SECURITIES
 
    A portion of the U.S. Government securities purchased by the Fund may be
"zero coupon" Treasury securities. These are U.S. Treasury bills, notes and
bonds which have been stripped of their unmatured interest coupons and receipts
or which are certificates representing interests in such stripped debt
obligations and coupons. Such securities are purchased at a discount from their
face amount, giving the purchaser the right to receive their full value at
maturity. A zero coupon security pays no interest to its holder during its life.
Its value to an investor consists of the difference between its face value at
the time of maturity and the price for which it was acquired, which is generally
an amount significantly less than its face value (sometimes referred to as a
"deep discount" price).
 
    The interest earned on such securities is, implicitly, automatically
compounded and paid out at maturity. While such compounding at a constant rate
eliminates the risk of receiving lower yields upon reinvestment of interest if
prevailing interest rates decline, the owner of a zero coupon security will be
unable to participate in higher yields upon reinvestment of interest received if
prevailing interest rates rise. For this reason, zero coupon securities are
subject to substantially greater market price fluctuations during periods of
changing prevailing interest rates than are comparable debt securities which
make current distributions of interest. Current federal tax law requires that a
holder (such as the Fund) of a zero coupon security accrue a portion of the
discount at which the security was purchased as income each year even though the
Fund receives no interest payments in cash on the security during the year. See
"Dividends, Distributions and Taxes" for a discussion of the tax treatment of
zero coupon Treasury securities.
 
    Currently the only U.S. Treasury security issued without coupons is the
Treasury bill. However, in the last few years a number of banks and brokerage
firms have separated ("stripped") the principal portions from the coupon
portions of the U.S. Treasury bonds and notes and sold them separately in the
form of receipts or certificates representing undivided interests in these
instruments (which instruments are generally held by a bank in a custodial or
trust account).
 
FOREIGN SECURITIES
 
    As stated in the Prospectus, the Fund may invest in securities issued by
foreign issuers. Investors should carefully consider the risks of investing in
securities of foreign issuers and securities denominated in non-U.S. currencies.
Fluctuations in the relative rates of exchange between the currencies of
different nations will affect the value of the Fund's investments. Changes in
foreign currency exchange rates relative to the U.S. dollar will affect the U.S.
dollar value of the Fund's assets denominated in that currency and thereby
impact upon the Fund's total return on such assets.
 
    Foreign currency exchange rates are determined by forces of supply and
demand on the foreign exchange markets. These forces are themselves affected by
the international balance of payments and
 
                                       15
<PAGE>
other economic and financial conditions, government intervention, speculation
and other factors. Moreover, foreign currency exchange rates may be affected by
the regulatory control of the exchanges on which the currencies trade.
 
    Investments in foreign securities will also occasion risks relating to
political and economic developments abroad, including the possibility of
expropriations or confiscatory taxation, limitations on the use or transfer of
Fund assets and any effects of foreign social, economic or political
instability. Foreign companies are not subject to the regulatory requirements of
U.S. companies and, as such, there may be less publicly available information
about such companies. Moreover, foreign companies are not subject to uniform
accounting, auditing and financial reporting standards and requirements
comparable to those applicable to U.S. companies.
 
   
    Securities of foreign issuers may be less liquid than comparable securities
of U.S. issuers and, as such, their price changes may be more volatile.
Furthermore, foreign exchanges and broker-dealers are generally subject to less
government and exchange scrutiny and regulation than their American
counterparts. Brokerage commissions, dealer concessions and other transaction
costs may be higher on foreign markets than in the U.S. In addition, differences
in clearance and settlement procedures on foreign markets may occasion delays in
settlements of Fund trades effected in such markets. Inability to dispose of
portfolio securities due to settlement delays could result in losses to the Fund
due to subsequent declines in value of such securities and the inability of the
Fund to make intended security purchases due to settlement problems could result
in a failure of the Fund to make potentially advantageous investments. The Fund
may invest up to 20% of the value of its total assets, at the time of purchase,
in securities issued by foreign issuers, with a maximum of 10% of the value of
its total assets, at the time of purchase, invested in such securities that are
not American Depository Receipts.
    
 
LENDING OF PORTFOLIO SECURITIES
 
    Consistent with applicable regulatory requirements, the Fund may lend its
portfolio securities to brokers, dealers and other financial institutions,
provided that such loans are callable at any time by the Fund (subject to notice
provisions described below), and are at all times secured by cash or cash
equivalents, which are maintained in a segregated account pursuant to applicable
regulations and that are equal to at least the market value, determined daily,
of the loaned securities. The advantage of such loans is that the Fund continues
to receive the income on the loaned securities while at the same time earning
interest on the cash amounts deposited as collateral, which will be invested in
short-term obligations. The Fund will not lend its portfolio securities if such
loans are not permitted by the laws or regulations of any state in which its
shares are qualified for sale and will not lend more than 25% of the value of
its total assets. A loan may be terminated by the borrower on one business days'
notice, or by the Fund on four business days' notice. If the borrower fails to
deliver the loaned securities within four days after receipt of notice, the Fund
could use the collateral to replace the securities while holding the borrower
liable for any excess of replacement cost over collateral. As with any
extensions of credit, there are risks of delay in recovery and in some cases
even loss of rights in the collateral should the borrower of the securities fail
financially. However, these loans of portfolio securities will only be made to
firms deemed by the Fund's management to be creditworthy and when the income
which can be earned from such loans justifies the attendant risks. Upon
termination of the loan, the borrower is required to return the securities to
the Fund. Any gain or loss in the market price during the loan period would
inure to the Fund. The credit worthiness of firms to which the Fund lends its
portfolio securities will be monitored on an ongoing basis by the Investment
Manager pursuant to procedures adopted and reviewed, on an ongoing basis, by the
Board of Trustees of the Fund.
 
    When voting or consent rights which accompany loaned securities pass to the
borrower, the Fund will follow the policy of calling the loaned securities, to
be delivered within one day after notice, to permit the exercise of such rights
if the matters involved would have a material effect on the Fund's investment in
such loaned securities. The Fund will pay reasonable finder's, administrative
and custodial fees in connection with a loan of its securities. However, the
Fund did not lend any of its portfolio securities during the year ended December
31, 1996.
 
                                       16
<PAGE>
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES AND FORWARD COMMITMENTS
 
    As stated in the Prospectus, from time to time the Fund may purchase
securities on a when-issued or delayed delivery basis or may purchase or sell
securities on a forward commitment basis. When such transactions are negotiated,
the price is fixed at the time of the commitment, but delivery and payment can
take place a month or more after the date of commitment. While the Fund will
only purchase securities on a when-issued, delayed delivery or forward
commitment basis with the intention of acquiring the securities, the Fund may
sell the securities before the settlement date, if it is deemed advisable. The
securities so purchased or sold are subject to market fluctuation and no
interest or dividends accrue to the purchaser prior to the settlement date. At
the time the Fund makes the commitment to purchase or sell securities on a
when-issued, delayed delivery or forward commitment basis, it will record the
transaction and thereafter reflect the value, each day, of such security
purchased, or if a sale, the proceeds to be received, in determining its net
asset value. At the time of delivery of the securities, their value may be more
or less than the purchase or sale price. The Fund will also establish a
segregated account with its custodian bank in which it will continually maintain
cash or cash equivalents or other liquid portfolio securities equal in value to
commitments to purchase securities on a when-issued, delayed delivery or forward
commitment basis. Subject to the foregoing restrictions, the Fund may purchase
securities on such basis without limit. The Investment Manager and the Board of
Trustees do not believe that the Fund's net asset value will be adversely
affected by the purchase of securities on such basis.
 
WHEN, AS AND IF ISSUED SECURITIES
 
    As stated in the Prospectus, the Fund may purchase securities on a "when, as
and if issued" basis under which the issuance of the security depends upon the
occurrence of a subsequent event, such as approval of a merger, corporate
reorganization, leveraged buyout or debt restructuring. The commitment for the
purchase of any such security will not be recognized in the portfolio of the
Fund until the Investment Manager determines that issuance of the security is
probable. At such time, the Fund will record the transaction and, in determining
its net asset value, will reflect the value of the security daily. At such time,
the Fund will also establish a segregated account with its custodian bank in
which it will maintain cash or cash equivalents or other liquid portfolio
securities equal in value to recognized commitments for such securities. Once a
segregated account has been established, if the anticipated event does not occur
and the securities are not issued, the Fund will have lost an investment
opportunity. The value of the Fund's commitments to purchase the securities of
any one issuer, together with the value of all securities of such issuer owned
by the Fund, may not exceed 5% of the value of the Fund's total assets at the
time the initial commitment to purchase such securities is made (see "Investment
Restrictions"). Subject to the foregoing restrictions, the Fund may purchase
securities on such basis without limit. An increase in the percentage of the
Fund's assets committed to the purchase of securities on a "when, as and if
issued" basis may increase the volatility of its net asset value. The Investment
Manager and the Trustees do not believe that the net asset value of the Fund
will be adversely affected by its purchase of securities on such basis. The Fund
may also sell securities on a "when, as and if issued" basis provided that the
issuance of the security will result automatically from the exchange or
conversion of a security owned by the Fund at the time of the sale.
 
PRIVATE PLACEMENTS
 
    The Fund may invest up to 5% of its total assets in securities which are
subject to restrictions on resale because they have not been registered under
the Securities Act of 1933, as amended (the "Securities Act"), or which are
otherwise not readily marketable. (Securities eligible for resale pursuant to
Rule 144A of the Securities Act, and determined to be liquid pursuant to the
procedures discussed in the following paragraph, are not subject to the
foregoing restriction.) These securities are generally referred to as private
placements or restricted securities. Limitations on the resale of such
securities may have an adverse effect on their marketability, and may prevent
the Fund from disposing of them promptly at reasonable prices. The Fund may have
to bear the expense of registering such securities for resale and the risk of
substantial delays in effecting such registration.
 
                                       17
<PAGE>
    The Securities and Exchange Commission has adopted Rule 144A under the
Securities Act, which permits the Fund to sell restricted securities to
qualified institutional buyers without limitation. The Investment Manager,
pursuant to procedures adopted by the Trustees of the Fund, will make a
determination as to the liquidity of each restricted security purchased by the
Fund. If a restricted security is determined to be "liquid", such security will
not be included within the category "illiquid securities," which is limited by
the Fund's investment restrictions to 10% of the Fund's total assets.
 
REPURCHASE AGREEMENTS
 
    As discussed in the Prospectus, when cash may be available for only a few
days, it may be invested by the Fund in repurchase agreements until such time as
it may otherwise be invested or used for payments of obligations of the Fund.
These agreements, which may be viewed as a type of secured lending by the Fund,
typically involve the acquisition by the Fund of debt securities from a selling
financial institution such as a bank, savings and loan association or
broker-dealer. The agreement provides that the Fund will sell back to the
institution, and that the institution will repurchase, the underlying security
("collateral") at a specified price and at a fixed time in the future, usually
not more than seven days from the date of purchase. The collateral will be
maintained in a segregated account and will be marked to market daily to
determine that the value of the collateral, as specified in the agreement, does
not decrease below the purchase price plus accrued interest. If such decrease
occurs, additional collateral will be requested and, when received, added to the
account to maintain full collateralization. The Fund will accrue interest from
the institution until the time when the repurchase is to occur. Although such
date is deemed by the Fund to be the maturity date of a repurchase agreement,
the maturities of securities subject to repurchase agreements are not subject to
any limits.
 
    While repurchase agreements involve certain risks not associated with direct
investments in debt securities, the Fund follows procedures designed to minimize
such risks. These procedures include effecting repurchase transactions only with
large, well-capitalized and well-established financial institutions whose
financial condition will be continually monitored by the Investment Manager
subject to procedures established by the Board of Trustees of the Fund. In
addition, as described above, the value of the collateral underlying the
repurchase agreement will be at least equal to the repurchase price, including
any accrued interest earned on the repurchase agreement. In the event of a
default or bankruptcy by a selling financial institution, the Fund will seek to
liquidate such collateral. However, the exercising of the Fund's right to
liquidate such collateral could involve certain costs or delays and, to the
extent that proceeds from any sale upon a default of the obligation to
repurchase were less than the repurchase price, the Fund could suffer a loss. It
is the current policy of the Fund not to invest in repurchase agreements that do
not mature within seven days if any such investment, together with any other
illiquid assets held by the Fund, amounts to more than 10% of its net assets.
 
OPTIONS AND FUTURES TRANSACTIONS
 
    The Fund may write covered call options against securities held in its
portfolio and covered put options on eligible portfolio securities and stock
indexes and purchase options of the same series to effect closing transactions,
and may hedge against potential changes in the market value of investments (or
anticipated investments) and facilitate the reallocation of the Fund's assets
into and out of equities and fixed-income securities by purchasing put and call
options on portfolio (or eligible portfolio) securities and engaging in
transactions involving futures contracts and options on such contracts.
 
    Call and put options on U.S. Treasury notes, bonds and bills and equity
securities are listed on Exchanges and are written in over-the-counter
transactions ("OTC options"). Listed options are issued by the Options Clearing
Corporation ("OCC"). Ownership of a listed call option gives the Fund the right
to buy from the OCC the underlying security covered by the option at the stated
exercise price (the price per unit of the underlying security) by filing an
exercise notice prior to the expiration date of the option. The writer (seller)
of the option would then have the obligation to sell to the OCC the underlying
security at that exercise price prior to the expiration date of the option,
regardless of its then current market price. Ownership of a listed put option
would give the Fund the right to sell the underlying security to the OCC at the
stated exercise price. Upon notice of exercise of the put option, the writer of
the put would have the
 
                                       18
<PAGE>
   
obligation to purchase the underlying security from the OCC at the exercise
price. The Fund did not enter into any options or futures transactions during
the fiscal year ended December 31, 1997 and does not intend to enter into any
such transactions during its fiscal year ending December 31, 1998.
    
 
    OPTIONS ON TREASURY BONDS AND NOTES.  Because trading in options written on
Treasury bonds and notes tends to center on the most recently auctioned issues,
the exchanges on which such securities trade will not continue indefinitely to
introduce options with new expirations to replace expiring options on particular
issues. Instead, the expirations introduced at the commencement of options
trading on a particular issue will be allowed to run their course, with the
possible addition of a limited number of new expirations as the original ones
expire. Options trading on each issue of bonds or notes will thus be phased out
as new options are listed on more recent issues, and options representing a full
range of expirations will not ordinarily be available for every issue on which
options are traded.
 
    OPTIONS ON TREASURY BILLS.  Because a deliverable Treasury bill changes from
week to week, writers of Treasury bill calls cannot provide in advance for their
potential exercise settlement obligations by acquiring and holding the
underlying security. However, if the Fund holds a long position in Treasury
bills with a principal amount of the securities deliverable upon exercise of the
option, the position may be hedged from a risk standpoint by the writing of a
call option. For so long as the call option is outstanding, the Fund will hold
the Treasury bills in a segregated account with its Custodian, so that they will
be treated as being covered.
 
    OTC OPTIONS.  Exchange-listed options are issued by the OCC which assures
that all transactions in such options are properly executed. OTC options are
purchased from or sold (written) to dealers or financial institutions which have
entered into direct agreements with the Fund. With OTC options, such variables
as expiration date, exercise price and premium will be agreed upon between the
Fund and the transacting dealer, without the intermediation of a third party
such as the OCC. If the transacting dealer fails to make or take delivery of the
securities underlying an option it has written, in accordance with the terms of
that option, the Fund would lose the premium paid for the option as well as any
anticipated benefit of the transaction. The Fund will engage in OTC option
transactions only with primary U.S. Government securities dealers recognized by
the Federal Reserve Bank of New York.
 
    COVERED CALL WRITING.  The Fund is permitted to write covered call options
on portfolio securities, without limit, in order to aid in achieving its
investment objective. Generally, a call option is "covered" if the Fund owns, or
has the right to acquire, without additional cash consideration (or for
additional cash consideration held for the Fund by its Custodian in a segregated
account) the underlying security subject to the option except that in the case
of call options on U.S. Treasury Bills, the Fund might own U.S. Treasury Bills
of a different series from those underlying the call option, but with a
principal amount and value corresponding to the exercise price and a maturity
date no later than that of the securities deliverable under the call option. A
call option is also covered if the Fund holds a call on the same security as the
underlying security of the written option, where the exercise price of the call
used for coverage is equal to or less than the exercise price of the call
written or greater than the exercise price of the call written if the mark to
market difference is maintained by the Fund in cash, U.S. Government securities
or other liquid obligations which the Fund holds in a segregated account
maintained with its Custodian.
 
    The Fund will receive from the purchaser, in return for a call it has
written, a "premium"; i.e., the price of the option. Receipt of these premiums
may better enable the Fund to achieve a greater total return than would be
realized from holding the underlying securities alone. Moreover, the income
received from the premium will offset a portion of the potential loss incurred
by the Fund if the securities underlying the option are ultimately sold by the
Fund at a loss. The income received from premiums will fluctuate with varying
economic market conditions. If the market value of the portfolio securities upon
which call options have been written increases, the Fund may receive less total
return from the portion of its portfolio upon which calls have been written than
it would have had such calls not been written.
 
    As regards listed options and certain OTC options, during the option period,
the Fund may be required, at any time, to deliver the underlying security
against payment of the exercise price on any calls
 
                                       19
<PAGE>
it has written (exercise of certain listed and OTC options may be limited to
specific expiration dates). This obligation is terminated upon the expiration of
the option period or at such earlier time when the writer effects a closing
purchase transaction. A closing purchase transaction is accomplished by
purchasing an option of the same series as the option previously written.
However, once the Fund has been assigned an exercise notice, the Fund will be
unable to effect a closing purchase transaction.
 
    Closing purchase transactions are ordinarily effected to realize a profit on
an outstanding call option to prevent an underlying security from being called,
to permit the sale of an underlying security or to enable the Fund to write
another call option on the underlying security with either a different exercise
price or expiration date or both. Also, effecting a closing purchase transaction
will permit the cash or proceeds from the concurrent sale of any securities
subject to the option to be used for other investments by the Fund. The Fund may
realize a net gain or loss from a closing purchase transaction depending upon
whether the amount of the premium received on the call option is more or less
than the cost of effecting the closing purchase transaction. Any loss incurred
in a closing purchase transaction may be wholly or partially offset by
unrealized appreciation in the market value of the underlying security.
Conversely, a gain resulting from a closing purchase transaction could be offset
in whole or in part or exceeded by a decline in the market value of the
underlying security.
 
    If a call option expires unexercised, the Fund realizes a gain in the amount
of the premium on the option less the commission paid. Such a gain, however, may
be offset by depreciation in the market value of the underlying security during
the option period. If a call option is exercised, the Fund realizes a gain or
loss from the sale of the underlying security equal to the difference between
the purchase price of the underlying security and the proceeds of the sale of
the security plus the premium received for on the option less the commission
paid.
 
    Options written by a Fund normally have expiration dates of from up to nine
months (equity securities) to eighteen months (fixed-income securities) from the
date written. The exercise price of a call option may be below, equal to or
above the current market value of the underlying security at the time the option
is written. See "Risks of Options and Futures Transactions," below.
 
    COVERED PUT WRITING.  As a writer of a covered put option, the Fund incurs
an obligation to buy the security underlying the option from the purchaser of
the put, at the option's exercise price at any time during the option period, at
the purchaser's election (certain listed and OTC put options written by the Fund
will be exercisable by the purchaser only on a specific date). A put is
"covered" if, at all times, the Fund maintains, in a segregated account
maintained on its behalf at the Fund's Custodian, cash, U.S. Government
securities or other liquid portfolio securities in an amount equal to at least
the exercise price of the option, at all times during the option period.
Similarly, a short put position could be covered by the Fund by its purchase of
a put option on the same security as the underlying security of the written
option, where the exercise price of the purchased option is equal to or more
than the exercise price of the put written or less than the exercise price of
the put written if the mark to market difference is maintained by the Fund in
cash, U.S. Government securities or other liquid portfolio securities which the
Fund holds in a segregated account maintained at its Custodian. In writing puts,
the Fund assumes the risk of loss should the market value of the underlying
security decline below the exercise price of the option (any loss being
decreased by the receipt of the premium on the option written). In the case of
listed options, during the option period, the Fund may be required, at any time,
to make payment of the exercise price against delivery of the underlying
security. The operation of and limitations on covered put options in other
respects are substantially identical to those of call options.
 
    The Fund will write put options for two purposes: (1) to receive the income
derived from the premiums paid by purchasers; and (2) when the Investment
Manager wishes to purchase the security underlying the option at a price lower
than its current market price, in which case it will write the covered put at an
exercise price reflecting the lower purchase price sought. The potential gain on
a covered put option is limited to the premium received on the option (less the
commissions paid on the transaction)
 
                                       20
<PAGE>
while the potential loss equals the difference between the exercise price of the
option and the current market price of the underlying securities when the put is
exercised, offset by the premium received (less the commissions paid on the
transaction).
 
    PURCHASING CALL AND PUT OPTIONS.  The Fund may purchase listed and OTC call
and put options in amounts equaling up to 5% of its total assets. The Fund may
purchase call options only in order to close out a covered call position (see
"Covered Call Writing" above). The purchase of the call option to effect a
closing transaction on a call written over-the-counter may be a listed or an OTC
option. In either case, the call purchased is likely to be on the same
securities and have the same terms as the written option. If purchased
over-the-counter, the option would generally be acquired from the dealer or
financial institution which purchased the call written by the Fund.
 
    The Fund may purchase put options on securities which it holds (or has the
right to acquire) in its portfolio only to protect itself against a decline in
the value of the security. If the value of the underlying security were to fall
below the exercise price of the put purchased in an amount greater than the
premium paid for the option, the Fund would incur no additional loss. The Fund
may also purchase put options to close out written put positions in a manner
similar to call options closing purchase transactions. In addition, the Fund may
sell a put option which it has previously purchased prior to the sale of the
securities underlying such option. Such a sale would result in a net gain or
loss depending on whether the amount received on the sale is more or less than
the premium and other transaction costs paid on the put option which is sold.
Any such gain or loss could be offset in whole or in part by a change in the
market value of the underlying security. If a put option purchased by the Fund
expired without being sold or exercised, the premium would be lost.
 
    RISKS OF OPTIONS TRANSACTIONS.  During the option period, the covered call
writer has, in return for the premium on the option, given up the opportunity
for capital appreciation above the exercise price should the market price of the
underlying security increase, but has retained the risk of loss should the price
of the underlying security decline. The secured put writer also retains the risk
of loss should the market value of the underlying security decline below the
exercise price of the option less the premium received on the sale of the
option. In both cases, the writer has no control over the time when it may be
required to fulfill its obligation as a writer of the option. Once an option
writer has received an exercise notice, it cannot effect a closing purchase
transaction in order to terminate its obligation under the option and must
deliver or receive the underlying securities at the exercise price.
 
    Prior to exercise or expiration, an option position can only be terminated
by entering into a closing purchase or sale transaction. If a covered call
option writer is unable to effect a closing purchase transaction or to purchase
an offsetting over-the-counter option, it cannot sell the underlying security
until the option expires or the option is exercised. Accordingly, a covered call
option writer may not be able to sell an underlying security at a time when it
might otherwise be advantageous to do so. A secured put option writer who is
unable to effect a closing purchase transaction or to purchase an offsetting
over-the-counter option would continue to bear the risk of decline in the market
price of the underlying security until the option expires or is exercised. In
addition, a secured put writer would be unable to utilize the amount held in
cash or U.S. Government or other high grade short-term debt obligations as
security for the put option for other investment purposes until the exercise or
expiration of the option.
 
    As discussed in the Prospectus, the Fund's ability to close out its position
as a writer of an option is dependent upon the existence of a liquid secondary
market on option Exchanges. There is no assurance that such a market will exist,
particularly in the case of OTC options, as such options will generally only be
closed out by entering into a closing purchase transaction with the purchasing
dealer. However, the Fund may be able to purchase an offsetting option which
does not close out its position as a writer but constitutes an asset of equal
value to the obligation under the option written. If the Fund is not able to
either enter into a closing purchase transaction or purchase an offsetting
position, it will be required to maintain the securities subject to the call, or
the collateral underlying the put, even though it might not be advantageous to
do so, until a closing transaction can be entered into (or the option is
exercised or expires).
 
                                       21
<PAGE>
    Among the possible reasons for the absence of a liquid secondary market on
an Exchange are: (i) insufficient trading interest in certain options; (ii)
restrictions on transactions imposed by an Exchange; (iii) trading halts,
suspensions or other restrictions imposed with respect to particular classes or
series of options or underlying securities; (iv) interruption of the normal
operations on an Exchange; (v) inadequacy of the facilities of an Exchange or
the Options Clearing Corporation ("OCC") to handle current trading volume; or
(vi) a decision by one or more Exchanges to discontinue the trading of options
(or a particular class or series of options), in which event the secondary
market on that Exchange (or in that class or series of options) would cease to
exist, although outstanding options on that Exchange that had been issued by the
OCC as a result of trades on that Exchange would generally continue to be
exercisable in accordance with their terms.
 
    Exchanges limit the amount by which the price of a futures contract may move
on any day. If the price moves equal the daily limit on successive days, then it
may prove impossible to liquidate a futures position until the daily limit moves
have ceased. In the event of adverse price movements, the Fund would continue to
be required to make daily cash payments of variation margin on open futures
positions. In such situations, if the Fund has insufficient cash, it may have to
sell portfolio securities to meet daily variation margin requirements at a time
when it may be disadvantageous to do so. In addition, the Fund may be required
to take or make delivery of the instruments underlying interest rate futures
contracts it holds at a time when it is disadvantageous to do so. The inability
to close out options and futures positions could also have an adverse impact on
the Fund's ability to effectively hedge its portfolio.
 
    In the event of the bankruptcy of a broker through which the Fund engages in
transactions in options, futures or options thereon, the Fund could experience
delays and/or losses in liquidating open positions purchased or sold through the
broker and/or incur a loss of all or part of its margin deposits with the
broker. Similarly, in the event of the bankruptcy of the writer of an OTC option
purchased by the Fund, the Fund could experience a loss of all or part of the
value of the option. Transactions are entered into by the Fund only with brokers
or financial institutions deemed creditworthy by the Investment Manager.
 
    Each of the Exchanges has established limitations governing the maximum
number of call or put options on the same underlying security or futures
contract (whether or not covered) which may be written by a single investor,
whether acting alone or in concert with others (regardless of whether such
options are written on the same or different Exchanges or are held or written on
one or more accounts or through one or more brokers). An Exchange may order the
liquidation of positions found to be in violation of these limits and it may
impose other sanctions or restrictions. These position limits may restrict the
number of listed options which the Fund may write.
 
    While the futures contracts and options transactions to be engaged in by the
Fund for the purpose of hedging the Fund's portfolio securities are not
speculative in nature, there are risks inherent in the use of such instruments.
One such risk which may arise in employing futures contracts to protect against
the price volatility of portfolio securities is that the prices of securities
and indexes subject to futures contracts (and thereby the futures contract
prices) may correlate imperfectly with the behavior of the cash prices of the
Fund's portfolio securities. Another such risk is that prices of interest rate
futures contracts may not move in tandem with the changes in prevailing interest
rates against which the Fund seeks a hedge. A correlation may also be distorted
by the fact that the futures market is dominated by short-term traders seeking
to profit from the difference between a contract or security price objective and
their cost of borrowed funds. Such distortions are generally minor and would
diminish as the contract approached maturity.
 
    The hours of trading for options may not conform to the hours during which
the underlying securities are traded. To the extent that the option markets
close before the markets for the underlying securities, significant price and
rate movements can take place in the underlying markets that cannot be reflected
in the option markets.
 
                                       22
<PAGE>
    STOCK INDEX OPTIONS.  Options on stock indexes are similar to options on
stock except that, rather than the right to take or make delivery of stock at a
specified price, an option on a stock index gives the holder the right to
receive, upon exercise of the option, an amount of cash if the closing level of
the stock index upon which the option is based is greater than, in the case of a
call, or less than, in the case of a put, the exercise price of the option. This
amount of cash is equal to such difference between the closing price of the
index and the exercise price of the option expressed in dollars times a
specified multiple (the "multiplier"). The multiplier for an index option
performs a function similar to the unit of trading for a stock option. It
determines the total dollar value per contract of each point in the difference
between the exercise price of an option and the current level of the underlying
index. A multiplier of 100 means that a one-point difference will yield $100.
Options on different indexes may have different multipliers. The writer of the
option is obligated, in return for the premium received, to make delivery of
this amount. Unlike stock options, all settlements are in cash and a gain or
loss depends on price movements in the stock market generally (or in a
particular segment of the market) rather than the price movements in individual
stocks. Currently, options are traded on the S&P 100 Index and the S&P 500 Index
on the Chicago Board Options Exchange, the Major Market Index and the Computer
Technology Index, Oil Index and Institutional Index on the American Stock
Exchange and the NYSE Index and NYSE Beta Index on the New York Stock Exchange,
The Financial News Composite Index on the Pacific Stock Exchange and the Value
Line Index, National O-T-C Index and Utilities Index on the Philadelphia Stock
Exchange, each of which and any similar index on which options are traded in the
future which include stocks that are not limited to any particular industry or
segment of the market is referred to as a "broadly based stock market index."
Options on stock indexes provide the Fund with a means of protecting the Fund
against the risk of market wide price movements. If the Investment Manager
anticipates a market decline, the Fund could purchase a stock index put option.
If the expected market decline materialized, the resulting decrease in the value
of the Fund's portfolio would be offset to the extent of the increase in the
value of the put option. If the Investment Manager anticipates a market rise,
the Fund may purchase a stock index call option to enable the Fund to
participate in such rise until completion of anticipated common stock purchases
by the Fund. Purchases and sales of stock index options also enable the
Investment Manager to more speedily achieve changes in the Fund's equity
positions.
 
    The Fund will write put options on stock indexes only if such positions are
covered by cash, U.S. Government securities or other liquid portfolio securities
equal to the aggregate exercise price of the puts, which cover is held for the
Fund in a segregated account maintained for it by the Fund's Custodian. All call
options on stock indexes written by the Fund will be covered either by a
portfolio of stocks substantially replicating the movement of the index
underlying the call option or by holding a separate call option on the same
stock index with a strike price no higher than the strike price of the call
option sold by the Fund.
 
    RISKS OF OPTIONS ON INDEXES.  Because exercises of stock index options are
settled in cash, call writers such as the Fund cannot provide in advance for
their potential settlement obligations by acquiring and holding the underlying
securities. A call writer can offset some of the risk of its writing position by
holding a diversified portfolio of stocks similar to those on which the
underlying index is based. However, most investors cannot, as a practical
matter, acquire and hold a portfolio containing exactly the same stocks as the
underlying index, and, as a result, bear a risk that the value of the securities
held will vary from the value of the index. Even if an index call writer could
assemble a stock portfolio that exactly reproduced the composition of the
underlying index, the writer still would not be fully covered from a risk
standpoint because of the "timing risk" inherent in writing index options. When
an index option is exercised, the amount of cash that the holder is entitled to
receive is determined by the difference between the exercise price and the
closing index level on the date when the option is exercised. As with other
kinds of options, the writer will not learn that it has been assigned until the
next business day, at the earliest. The time lag between exercise and notice of
assignment poses no risk for the writer of a covered call on a specific
underlying security, such as a common stock, because there the writer's
obligation is to deliver the underlying security, not to pay its value as of a
fixed time in the past. So long as the writer already owns the underlying
security, it can satisfy its settlement obligations by simply delivering it, and
the risk that its value may have declined since the exercise date is borne by
the exercising holder. In
 
                                       23
<PAGE>
contrast, even if the writer of an index call holds stocks that exactly match
the composition of the underlying index, it will not be able to satisfy its
assignment obligations by delivering those stocks against payment of the
exercise price. Instead, it will be required to pay cash in an amount based on
the closing index value on the exercise date; and by the time it learns that it
has been assigned, the index may have declined, with a corresponding decrease in
the value of its stock portfolio. This "timing risk" is an inherent limitation
on the ability of index call writers to cover their risk exposure by holding
stock positions.
 
    A holder of an index option who exercises it before the closing index value
for that day is available runs the risk that the level of the underlying index
may subsequently change. If such a change causes the exercised option to fall
out-of-the-money, the exercising holder will be required to pay the difference
between the closing index value and the exercise price of the option (times the
applicable multiplier) to the assigned writer.
 
    If dissemination of the current level of an underlying index is interrupted,
or if trading is interrupted in stocks accounting for a substantial portion of
the value of an index, the trading of options on that index will ordinarily be
halted. If the trading of options on an underlying index is halted, an exchange
may impose restrictions prohibiting the exercise of such options.
 
    FUTURES CONTRACTS.  The Fund may purchase and sell interest rate and stock
index futures contracts ("futures contracts") that are traded on U.S. commodity
exchanges on such underlying securities as U.S. Treasury bonds, notes and bills
("interest rate" futures) and such indexes as the S&P 500 Index, the Moody's
Investment-Grade Corporate Bond Index and the New York Stock Exchange Composite
Index ("index" futures).
 
    As a futures contract purchaser, the Fund incurs an obligation to take
delivery of a specified amount of the obligation underlying the contract at a
specified time in the future for a specified price. As a seller of a futures
contract, the Fund incurs an obligation to deliver the specified amount of the
underlying obligation at a specified time in return for an agreed upon price.
 
    The Fund will purchase or sell interest rate futures contracts and bond
index futures contracts for the purpose of hedging its fixed-income portfolio
(or anticipated portfolio) securities against changes in prevailing interest
rates. If the Investment Manager anticipates that interest rates may rise and,
concomitantly, the price of fixed-income securities fall, the Fund may sell an
interest rate futures contract or a bond index futures contract. If declining
interest rates are anticipated, the Fund may purchase an interest rate futures
contract to protect against a potential increase in the price of U.S. Government
securities the Fund intends to purchase. Subsequently, appropriate fixed-income
securities may be purchased by the Fund in an orderly fashion; as securities are
purchased, corresponding futures positions would be terminated by offsetting
sales of contracts.
 
    The Fund will purchase or sell stock index futures contracts for the purpose
of hedging its equity portfolio (or anticipated portfolio) securities against
changes in their prices. If the Investment Manager anticipates that the prices
of stock held by the Fund may fall, the Fund may sell a stock index futures
contract. Conversely, if the Investment Manager wishes to hedge against
anticipated price rises in those stocks which the Fund intends to purchase, the
Fund may purchase stock index futures contracts. In addition, interest rate and
stock index futures contracts will be bought or sold in order to close out a
short or long position in a corresponding futures contract.
 
    Although most interest rate futures contracts call for actual delivery or
acceptance of securities, the contracts usually are closed out before the
settlement date without the making or taking of delivery. Index futures
contracts provide for the delivery of an amount of cash equal to a specified
dollar amount times the difference between the stock index value at the open or
close of the last trading day of the contract and the futures contract price. A
futures contract sale is closed out by effecting a futures contract purchase for
the same aggregate amount of the specific type of equity security and the same
delivery date. If the sale price exceeds the offsetting purchase price, the
seller would be paid the difference and would realize a gain. If the offsetting
purchase price exceeds the sale price, the seller
 
                                       24
<PAGE>
would pay the difference and would realize a loss. Similarly, a futures contract
purchase is closed out by effecting a futures contract sale for the same
aggregate amount of the specific type of equity security and the same delivery
date. If the offsetting sale price exceeds the purchase price, the purchaser
would realize a gain, whereas if the purchase price exceeds the offsetting sale
price, the purchaser would realize a loss. There is no assurance that the Fund
will be able to enter into a closing transaction.
 
    INTEREST RATE FUTURES CONTRACTS.  When the Fund enters into an interest rate
futures contract, it is initially required to deposit with the Fund's Custodian,
in a segregated account in the name of the broker performing the transaction, an
"initial margin" of cash or U.S. Government securities or other liquid portfolio
securities equal to approximately 2% of the contract amount. Initial margin
requirements are established by the Exchanges on which futures contracts trade
and may, from time to time, change. In addition, brokers may establish margin
deposit requirements in excess of those required by the Exchanges.
 
    Initial margin in futures transactions is different from margin in
securities transactions in that initial margin does not involve the borrowing of
funds by a brokers' client but is, rather, a good faith deposit on the futures
contract which will be returned to the Fund upon the proper termination of the
futures contract. The margin deposits made are marked to market daily and the
Fund may be required to make subsequent deposits called "variation margin", with
the Fund's Custodian, in the account in the name of the broker, which are
reflective of price fluctuations in the futures contract. Currently, interest
rates futures contracts can be purchased on debt securities such as U.S.
Treasury Bills and Bonds, U.S. Treasury Notes with maturities between 6 1/2 and
10 years, GNMA Certificates and Bank Certificates of Deposit.
 
    INDEX FUTURES CONTRACTS.  The Fund may invest in index futures contracts. An
index futures contract sale creates an obligation by the Fund, as seller, to
deliver cash at a specified future time. An index futures contract purchase
would create an obligation by the Fund, as purchaser, to take delivery of cash
at a specified future time. Futures contracts on indexes do not require the
physical delivery of securities, but provide for a final cash settlement on the
expiration date which reflects accumulated profits and losses credited or
debited to each party's account.
 
    The Fund is required to maintain margin deposits with brokerage firms
through which it effects index futures contracts in a manner similar to that
described above for interest rate futures contracts. Currently, the initial
margin requirement is approximately 5% of the contract amount for index futures.
In addition, due to current industry practice, daily variations in gains and
losses on open contracts are required to be reflected in cash in the form of
variation margin payments. The Fund may be required to make additional margin
payments during the term of the contract.
 
    At any time prior to expiration of the futures contract, the Fund may elect
to close the position by taking an opposite position which will operate to
terminate the Fund's position in the futures contract. A final determination of
variation margin is then made, additional cash is required to be paid by or
released to the Fund and the Fund realizes a loss or a gain.
 
    Currently, index futures contracts can be purchased or sold with respect to,
among others, the Standard & Poor's 500 Stock Price Index and the Standard &
Poor's 100 Stock Price Index on the Chicago Mercantile Exchange, the New York
Stock Exchange Composite Index on the New York Futures Exchange, the Major
Market Index on the American Stock Exchange, the Moody's Investment-Grade
Corporate Bond Index on the Chicago Board of Trade and the Value Line Stock
Index on the Kansas City Board of Trade.
 
    OPTIONS ON FUTURES CONTRACTS.  The Fund may purchase and write call and put
options on futures contracts and enter into closing transactions with respect to
such options to terminate an existing position. An option on a futures contract
gives the purchaser the right (in return for the premium paid), and the writer
the obligation, to assume a position in a futures contract (a long position if
the option is a call and a short position if the option is a put) at a specified
exercise price at any time during the term of the option. Upon exercise of the
option, the delivery of the futures position by the writer of the option to
 
                                       25
<PAGE>
the holder of the option is accompanied by delivery of the accumulated balance
in the writer's futures margin account, which represents the amount by which the
market price of the futures contract at the time of exercise exceeds, in the
case of a call, or is less than, in the case of a put, the exercise price of the
option on the futures contract.
 
    The Fund will purchase and write options on futures contracts for identical
purposes to those set forth above for the purchase of a futures contract
(purchase of a call option or sale of a put option) and the sale of a futures
contract (purchase of a put option or sale of a call option), or to close out a
long or short position in futures contracts. If, for example, the Investment
Manager wished to protect against an increase in interest rates and the
resulting negative impact on the value of a portion of its fixed-income
portfolio, it might write a call option on an interest rate futures contract,
the underlying security of which correlates with the portion of the portfolio
the Investment Manager seeks to hedge. Any premiums received in the writing of
options on futures contracts may, of course, augment the total return of the
Fund and thereby provide a further hedge against losses resulting from price
declines in portions of the Fund's portfolio.
 
    The writer of an option on a futures contract is required to deposit initial
and variation margin pursuant to requirements similar to those applicable to
futures contracts. Premiums received from the writing of an option on a futures
contract are included in initial margin deposits.
 
    LIMITATIONS ON FUTURES CONTRACTS AND OPTIONS ON FUTURES.  The Fund may not
enter into futures contracts or purchase related options thereon if, immediately
thereafter, the amount committed to margin plus the amount paid for premiums for
unexpired options on futures contracts exceeds 5% of the value of the Fund's
total assets, after taking into account unrealized gains and unrealized losses
on such contracts it has entered into, provided, however, that in the case of an
option that is in-the-money (the exercise price of the call (put) option is less
(more) than the market price of the underlying security) at the time of
purchase, the in-the-money amount may be excluded in calculating the 5%.
However, there is no overall limitation on the percentage of the Fund's assets
which may be subject to a hedge position. In addition, in accordance with the
regulations of the Commodity Futures Trading Commission ("CFTC") under which the
Fund is exempted from registration as a commodity pool operator, the Fund may
only enter into futures contracts and options on futures contracts transactions
for purposes of hedging a part or all of its portfolio. If the CFTC changes its
regulations so that the Fund would be permitted to write options on futures
contracts for purposes other than hedging the Fund's investments without CFTC
registration, the Fund may engage in such transactions for those purposes.
Except as described above, there are no other limitations on the use of futures
and options thereon by the Fund.
 
    RISKS OF TRANSACTIONS IN FUTURES CONTRACTS AND RELATED OPTIONS.  The Fund
may sell a futures contract to protect against the decline in the value of
securities held by the Fund. However, it is possible that the futures market may
advance and the value of securities held in the portfolio of the Fund may
decline. If this occurred, the Fund would lose money on the futures contract and
also experience a decline in value of its portfolio securities. However, while
this could occur for a very brief period or to a very small degree, over time
the value of a diversified portfolio will tend to move in the same direction as
the futures contracts.
 
    If the Fund purchases a futures contract to hedge against the increase in
value of securities it intends to buy, and the value of such securities
decreases, then the Fund may determine not to invest in the securities as
planned and will realize a loss on the futures contract that is not offset by a
reduction in the price of the securities.
 
    In addition, if the Fund holds a long position in a futures contract or has
sold a put option on a futures contract, it will hold cash, U.S. Government
securities or other liquid portfolio securities equal to the purchase price of
the contract or the exercise price of the put option (less the amount of initial
or variation margin on deposit) in a segregated account maintained for the Fund
by its Custodian. Alternatively, the Fund could cover its long position by
purchasing a put option on the same futures contract with an exercise price as
high or higher than the price of the contract held by the Fund.
 
                                       26
<PAGE>
    If the Fund maintains a short position in a futures contract or has sold a
call option on a futures contract, it will cover this position by holding, in a
segregated account maintained at its Custodian, cash, U.S. Government securities
or other liquid portfolio securities equal in value (when added to any initial
or variation margin on deposit) to the market value of the securities underlying
the futures contract or the exercise price of the option. Such a position may
also be covered by owning the securities underlying the futures contract (in the
case of a stock index futures contract a portfolio of securities substantially
replicating the relevant index), or by holding a call option permitting the Fund
to purchase the same contract at a price no higher than the price at which the
short position was established.
 
    Exchanges may limit the amount by which the price of futures contracts may
move on any day. If the price moves equal the daily limit on successive days,
then it may prove impossible to liquidate a futures position until the daily
limit moves have ceased.
 
    The extent to which the Fund may enter into transactions involving options
and futures contracts may be limited by the Internal Revenue Code's requirements
for qualification as a regulated investment company and the Fund's intention to
qualify as such. See "Dividends, Distributions and Taxes" in the Prospectus and
the Statement of Additional Information.
 
    There may exist an imperfect correlation between the price movements of
futures contracts purchased by the Fund and the movements in the prices of the
securities which are the subject of the hedge. If participants in the futures
market elect to close out their contracts through offsetting transactions rather
than meet margin deposit requirements, distortions in the normal relationship
between the debt securities and futures markets could result. Price distortions
could also result if investors in futures contracts opt to make or take delivery
of underlying securities rather than engage in closing transactions due to the
resultant reduction in the liquidity of the futures market. In addition, due to
the fact that, from the point of view of speculators, the deposit requirements
in the futures markets are less onerous than margin requirements in the cash
market, increased participation by speculators in the futures market could cause
temporary price distortions. Due to the possibility of price distortions in the
futures market and because of the imperfect correlation between movements in the
prices of securities and movements in the prices of futures contracts, a correct
forecast of interest rate trends by the Investment Manager may still not result
in a successful hedging transaction.
 
    There is no assurance that a liquid secondary market will exist for futures
contracts and related options in which the Fund may invest. In the event a
liquid market does not exist, it may not be possible to close out a futures
position, and in the event of adverse price movements, the Fund would continue
to be required to make daily cash payments of variation margin. In addition,
limitations imposed by an exchange or board of trade on which futures contracts
are traded may compel or prevent the Fund from closing out a contract which may
result in reduced gain or increased loss to the Fund. The absence of a liquid
market in futures contracts might cause the Fund to make or take delivery of the
underlying securities at a time when it may be disadvantageous to do so.
 
    Compared to the purchase or sale of futures contracts, the purchase of call
or put options on futures contracts involves less potential risk to the Fund
because the maximum amount at risk is the premium paid for the options (plus
transaction costs). However, there may be circumstances when the purchase of a
call or put option on a futures contract would result in a loss to the Fund
notwithstanding that the purchase or sale of a futures contract would not result
in a loss, as in the instance where there is no movement in the prices of the
futures contract or underlying securities.
 
    The Investment Manager has substantial experience in the use of the
investment techniques described above under the heading "Options and Futures
Transactions," which techniques require skills different from those needed to
select the portfolio securities underlying various options and futures
contracts.
 
PORTFOLIO MANAGEMENT
 
    The Fund's portfolio is actively managed by its Investment Manager with a
view to achieving the Fund's investment objective. In determining which
securities to purchase for the Fund or hold in the
 
                                       27
<PAGE>
Fund's portfolio, the Investment Manager will rely on information from various
sources, including research, analysis and appraisals of brokers and dealers,
including DWR; the views of Trustees of the Fund and others regarding economic
developments and interest rate trends; and the Investment Manager's own analysis
of factors it deems relevant. It is anticipated that the Fund's portfolio
turnover rate will not exceed 100%. A 100% turnover rate would occur, for
example, if 100% of the securities held in the Fund's portfolio (excluding all
securities whose maturities at acquisitions were one year or less) were sold and
replaced within one year.
 
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
    In addition to the investment restrictions enumerated in the Prospectus, the
investment restrictions listed below have been adopted by the Fund as
fundamental policies, except as otherwise indicated. Under the Act, a
fundamental policy may not be changed without the vote of a majority of the
outstanding voting securities of the Fund, as defined in the Act. Such a
majority is defined as the lesser of (a) 67% or more of the shares present at a
meeting of shareholders, if the holders of 50% of the outstanding shares of the
Fund are present or represented by proxy or (b) more than 50% of the outstanding
shares of the Fund.
 
    The Fund may not:
 
         1. Invest in securities of any issuer if, to the knowledge of the Fund,
    any officer or trustee/ director of the Fund or of the Investment Manager
    owns more than 1/2 of 1% of the outstanding securities of such issuer, and
    such officers and trustees/directors who own more than 1/2 of 1% own in the
    aggregate more than 5% of the outstanding securities of such issuers.
 
         2. Purchase or sell real estate or interests therein, (including
    limited partnership interests) although the Fund may purchase securities of
    issuers which engage in real estate operations and securities secured by
    real estate or interests therein.
 
         3. Purchase oil, gas or other mineral leases, rights or royalty
    contracts or exploration or development programs, except that the Fund may
    invest in the securities of companies which operate, invest in, or sponsor
    such programs.
 
         4. Purchase securities of other investment companies, except in
    connection with a merger, consolidation, reorganization or aquisition of
    assets.
 
         5. Borrow money, except that the Fund may borrow from a bank for
    temporary or emergency purposes in amounts not exceeding 5% (taken at the
    lower of cost or current value) of its total assets (not including the
    amount borrowed).
 
         6. Pledge its assets or assign or otherwise encumber them except to
    secure borrowings effected within the limitations set forth in restriction
    (5). For the purpose of this restriction, collateral arrangements with
    respect to the writing of options and collateral arrangements with respect
    to initial or variation margin for futures are not deemed to be pledges of
    assets.
 
         7. Issue senior securities as defined in the Act except insofar as the
    Fund may be deemed to have issued a senior security by reason of borrowing
    money in accordance with restrictions described above.
 
         8. Make loans of money or securities, except: (a) by the purchase of
    publicly distributed debt obligations in which the Fund may invest
    consistent with its investment objective and policies; (b) by investment in
    repurchase agreements; or (c) by lending its portfolio securities.
 
                                       28
<PAGE>
         9. Make short sales of securities.
 
        10. Purchase securities on margin, except for such short-term loans as
    are necessary for the clearance of portfolio securities. The deposit or
    payment by the Fund of initial or variation margin in connection with
    futures contracts or related options thereon is not considered the purchase
    of a security on margin.
 
        11. Engage in the underwriting of securities, except insofar as the Fund
    may be deemed an underwriter under the Securities Act of 1933 in disposing
    of a portfolio security.
 
        12. Invest for the purpose of exercising control or management of any
    other issuer.
 
    In addition, the Fund, as a non-fundamental policy, will not invest in
warrants, although it may acquire warrants attached to other securities
purchased by the Fund.
 
    With respect to the investment restrictions listed above and those listed in
the Prospectus, if a percentage restriction is adhered to at the time of
investment, a later increase or decrease in percentage resulting from a change
in values of portfolio securities or amount of total or net assets will not be
considered a violation of any of the foregoing restrictions.
 
    Notwithstanding any other investment policy or restriction, the Fund may
seek to achieve its investment objective by investing all or substantially all
of its assets in another investment company having substantially the same
investment objective and policies as the Fund.
 
PORTFOLIO TRANSACTIONS AND BROKERAGE
- --------------------------------------------------------------------------------
 
    Subject to the general supervision of the Board of Trustees, the Investment
Manager is responsible for decisions to buy and sell securities for the Fund,
the selection of brokers and dealers to effect the transactions, and the
negotiation of brokerage commissions, if any. Purchases and sales of securities
on a stock exchange are effected through brokers who charge a commission for
their services. In the over-the-counter market, securities are generally traded
on a "net" basis with dealers acting as principal for their own accounts without
a stated commission, although the price of the security usually includes a
profit to the dealer. Securities may be purchased at times in underwriting
offerings where the price includes a fixed amount of compensation, generally
referred to as the underwriter's concession or discount. Options and futures
transactions will usually be effected through a broker and a commission will be
charged. On occasion, the Fund may also purchase certain money market
instruments directly from an issuer, in which case no commissions or discounts
are paid.
 
    The Investment Manager currently serves as investment manager to a number of
clients, including other investment companies, and may in the future act as
investment manager or adviser to others. It is the practice of the Investment
Manager to cause purchase and sale transactions to be allocated among the Fund
and others whose assets it manages in such manner as it deems equitable. In
making such allocations among the Fund and other client accounts, various
factors may be considered, including the respective investment objectives, the
relative size of portfolio holdings of the same or comparable securities, the
availability of cash for investment, the size of investment commitments
generally held and the opinions of the persons responsible for managing the
portfolios of the Fund and other client accounts. In the case of certain initial
and secondary public offerings, the Investment Manager may utilize a pro-rata
allocation process based on the size of the Dean Witter Funds involved and the
number of shares available from the public offering.
 
   
    The aggregate amounts of brokerage commissions paid by the Fund during the
fiscal years ended December 31, 1995, 1996 and 1997 were $196,300, $522,394 and
$834,417, respectively.
    
 
    The policy of the Fund regarding purchases and sales of securities for its
portfolio is that primary consideration will be given to obtaining the most
favorable prices and efficient executions of transactions. Consistent with this
policy, when securities transactions are effected on a stock exchange, the
Fund's policy is to pay commissions which are considered fair and reasonable
without necessarily
 
                                       29
<PAGE>
determining that the lowest possible commissions are paid in all circumstances.
The Fund believes that a requirement always to seek the lowest possible
commission cost could impede effective portfolio management and preclude the
Fund and the Investment Manager from obtaining a high quality of brokerage and
research services. In seeking to determine the reasonableness of brokerage
commissions paid in any transaction, the Investment Manager relies upon its
experience and knowledge regarding commissions generally charged by various
brokers and on its judgment in evaluating the brokerage and research services
received from the broker effecting the transaction. Such determinations are
necessarily subjective and imprecise, as in most cases an exact dollar value for
those services is not ascertainable.
 
   
    In seeking to implement the Fund's policies, the Investment Manager effects
transactions with those brokers and dealers who the Investment Manager believes
provide the most favorable prices and are capable of providing efficient
executions. If the Investment Manager believes such prices and executions are
obtainable from more than one broker or dealer, it may give consideration to
placing portfolio transactions with those brokers and dealers who also furnish
research and other services to the Fund or the Investment Manager. Such services
may include, but are not limited to, any one or more of the following:
information as to the availability of securities for purchase or sale;
statistical or factual information or opinions pertaining to investment; wire
services; and appraisals or evaluations of portfolio securities. During the
fiscal year ended December 31, 1997, the Fund directed the payment of $515,100
in brokerage commissions in connection with transactions in the aggregate amount
of $303,958,845 to brokers because of research services provided.
    
 
    The information and services received by the Investment Manager from brokers
and dealers may be of benefit to the Investment Manager in the management of
accounts of some of its other clients and may not in all cases benefit the Fund
directly. While the receipt of such information and services is useful in
varying degrees and would generally reduce the amount of research or services
otherwise performed by the Investment Manager and thereby reduce its expenses,
it is of indeterminable value and the management fee paid to the Investment
Manager is not reduced by any amount that may be attributable to the value of
such services.
 
   
    Pursuant to an order of the Securities and Exchange Commission, the Fund may
effect principal transactions in certain money market instruments with DWR. The
Fund will limit its transactions with DWR to U.S. Government and Government
Agency Securities, Bank Money Instruments (i.e., Certificates of Deposit and
Bankers' Acceptances) and Commercial Paper. Such transactions will be effected
with DWR only when the price available from DWR is better than that available
from other dealers. During its fiscal year ended December 31, 1997 the Fund did
not effect any principal transactions with DWR.
    
 
   
    Consistent with the policy described above, brokerage transactions in
securities listed on exchanges or admitted to unlisted trading privileges may be
effected through DWR, Morgan Stanley & Co. Incorporated ("MS & Co.") and other
affiliated brokers and dealers. In order for an affiliated broker or dealer to
effect any portfolio transactions for the Fund, the commissions, fees or other
remuneration received by the affiliated broker or dealer must be reasonable and
fair compared to the commissions, fees or other remuneration paid to other
brokers in connection with comparable transactions involving similar securities
being purchased or sold on an exchange during a comparable period of time. This
standard would allow the affiliated broker or dealer to receive no more than the
remuneration which would be expected to be received by an unaffiliated broker in
a commensurate arm's-length transaction. Furthermore, the Board of Trustees of
the Fund, including a majority of the Trustees who are not "interested" persons
of the Fund, as defined in the Act, have adopted procedures which are reasonably
designed to provide that any commissions, fees or other remuneration paid to an
affiliated broker or dealer are consistent with the foregoing standard. During
the fiscal years ended December 31, 1995, 1996 and 1997, the Fund paid a total
of $48,000, $162,125 and $279,015, respectively, in brokerage commissions to
DWR. The Fund does not reduce the management fee it pays to the Investment
Manager by any amount of the brokerage commissions it may pay to an affiliated
broker or dealer. During the fiscal year ended December 31, 1997, the brokerage
commissions paid to DWR represented approximately 33% of the total brokerage
commissions paid by the Fund during the period and were
    
 
                                       30
<PAGE>
   
paid on account of transactions having an aggregate dollar value equal to
approximately 38% of the aggregate dollar value of all portfolio transactions of
the Fund during the period for which commissions were paid. During the period
June 1 through December 31, 1997, the Fund paid a total of $2,000 in brokerage
commissions to MS & Co., which broker-dealer became an affiliate of the
Investment Manager on May 31, 1997 upon consummation of the merger of Dean
Witter, Discover & Co. with Morgan Stanley Group Inc. The brokerage commissions
paid to MS & Co. represented approximately .24% of the total brokerage
commissions paid by the Fund for this period and were paid on account of
transactions having an aggregate dollar value equal to approximately 1% of the
aggregate dollar value of all portfolio transactions of the Fund during the
period for which commissions were paid.
    
 
THE DISTRIBUTOR
- --------------------------------------------------------------------------------
 
    As discussed in the Prospectus, shares of the Fund are distributed by Dean
Witter Distributors Inc. (the "Distributor"). The Distributor has entered into a
selected dealer agreement with DWR, which through its own sales organization
sells shares of the Fund. In addition, the Distributor may enter into selected
dealer agreements with other selected broker-dealers. The Distributor, a
Delaware corporation, is a wholly-owned subsidiary of MSDWD. The Trustees of the
Fund, including a majority of the Trustees who are not, and were not at the time
they voted, interested persons of the Fund, as defined in the Act (the
"Independent Trustees"), approved, at their meeting held on June 30, 1997, the
current Distribution Agreement appointing the Distributor exclusive distributor
of the Fund's shares and providing for the Distributor to bear distribution
expenses not borne by the Fund. By its terms, the Distribution Agreement has an
initial term ending April 30, 1998 and will remain in effect from year to year
thereafter if approved by the Board.
 
    The Distributor bears all expenses it may incur in providing services under
the Distribution Agreement. Such expenses include the payment of commissions for
sales of the Fund's shares and incentive compensation to account executives. The
Distributor will also pay certain expenses in connection with the distribution
of the Fund's shares, including the costs of preparing, printing and
distributing advertising or promotional materials, and the costs of printing and
distributing prospectuses and supplements thereto used in connection with the
offering and sale of the Fund's shares. The Fund bears the costs of initial
typesetting, printing and distribution of prospectuses and supplements thereto
to shareholders. The Fund also will bear the costs of registering the Fund and
its shares under federal and state securities laws and pays filing fees in
accordance with state securities laws. The Fund and the Distributor have agreed
to indemnify each other against certain liabilities, including liabilities under
the Securities Act of 1933, as amended. Under the Distribution Agreement, the
Distributor uses its best efforts in rendering services to the Fund, but in the
absence of willful misfeasance, bad faith, gross negligence or reckless
disregard of its obligations, the Distributor is not liable to the Fund or any
of its shareholders for any error of judgment or mistake of law or for any act
or omission or for any losses sustained by the Fund or its shareholders.
 
PLAN OF DISTRIBUTION
 
   
    The Fund has adopted a Plan of Distribution pursuant to Rule 12b-1 under the
Act (the "Plan") pursuant to which each Class, other than Class D, pays the
Distributor compensation accrued daily and payable monthly at the following
annual rates: 0.25% and 1.0% of the average daily net assets of Class A and
Class C, respectively, and, with respect to Class B, 1.0% of the lesser of: (a)
the average daily aggregate gross sales of the Fund's Class B shares since the
inception of the Fund (not including reinvestments of dividends or capital gains
distributions), less the average daily aggregate net asset value of the Fund's
Class B shares redeemed since the Fund's inception upon which a contingent
deferred sales charge has been imposed or upon which such charge has been
waived, or (b) the average daily net assets of Class B. The Distributor also
receives the proceeds of front-end sales charges and of contingent deferred
sales charges imposed on certain redemptions of shares, which are separate and
apart from payments made pursuant to the Plan (see "Purchase of Fund Shares" in
the Prospectus). The Distributor has informed the Fund that it and/or DWR
received (a) approximately
    
 
                                       31
<PAGE>
   
$5,644,000, $5,371,000 and $3,924,730 in contingent deferred sales charges from
Class B for the fiscal years ended December 31, 1995, 1996 and 1997,
respectively, and $1 in contingent deferred sales charges from Class C for the
period July 28, 1997 through December 31, 1997 and (b) approximately $16,377 in
front-end sales charges from Class A for the fiscal year ended December 31,
1997, none of which was retained by the Distributor. No contingent deferred
sales charges were received from Class A or Class C for the fiscal year ended
December 31, 1997.
    
 
    The Distributor has informed the Fund that the entire fee payable by Class A
and a portion of the fees payable by each of Class B and Class C each year
pursuant to the Plan equal to 0.25% of such Class's average daily net assets are
currently each characterized as a "service fee" under the Rules of the
Association of the National Association of Securities Dealers, Inc. (of which
the Distributor is a member). The "service fee" is a payment made for personal
service and/or the maintenance of shareholder accounts. The remaining portion of
the Plan fees payable by a Class, if any, is characterized as an "asset-based
sales charge" as such is defined by the aforementioned Rules of the Association.
 
    The Plan was adopted by a majority vote of the Board of Trustees, including
all of the Trustees of the Fund who are not "interested persons" of the Fund (as
defined in the Act) and who have no direct or indirect financial interest in the
operation of the Plan (the "Independent 12b-1 Trustees"), cast in person at a
meeting called for the purpose of voting on the Plan, on January 14, 1988 and by
the shareholders holding a majority, as defined in the Act, of the outstanding
voting securities of the Fund at a Meeting of Shareholders of the Fund held on
June 28, 1989.
 
    At their meeting held on October 30, 1992, the Trustees of the Fund,
including all of the Independent 12b-1 Trustees, approved certain amendments to
the Plan which took effect in January, 1993 and were designed to reflect the
fact that upon an internal reorganization the share distribution activities
theretofore performed for the Fund by DWR were assumed by the Distributor and
DWR's sales activities are now being performed pursuant to the terms of a
selected dealer agreement between the Distributor and DWR. The amendments
provide that payments under the Plan will be made to the Distributor rather than
to DWR as before the amendment, and that the Distributor in turn is authorized
to make payments to DWR, its affiliates or other selected broker-dealers (or
direct that the Fund pay such entities directly). The Distributor is also
authorized to retain part of such fee as compensation for its own
distribution-related expenses. At their meeting held on April 28, 1993, the
Trustees, including a majority of the Independent 12b-1 Trustees, approved
certain technical amendments to the Plan in connection with amendments adopted
by the National Association of Securities Dealers, Inc. to its Rules of the
Association. At their meeting held on October 26, 1995, the Trustees of the
Fund, including all of the Independent 12b-1 Trustees, approved an amendment to
the Plan to permit payments to be made under the Plan with respect to certain
distribution expenses incurred in connection with the distribution of shares,
including personal services to shareholders with respect to holdings of such
shares, of an investment company whose assets are acquired by the Fund in a
tax-free reorganization. At their meeting held on June 30, 1997, the Trustees,
including a majority of the Independent 12b-1 Trustees, approved amendments to
the Plan to reflect the multiple-class structure for the Fund, which took effect
on July 28, 1997.
 
   
    Under the Plan and as required by Rule 12b-1, the Trustees receive and
review promptly after the end of each calendar quarter a written report provided
by the Distributor of the amounts expended under the Plan and the purpose for
which such expenditures were made. Class B shares of the Fund accrued amounts
payable to the Distributor under the Plan, during the fiscal year ended December
31, 1997, of $23,748,377. This amount is equal to 1.0% of the Fund's average
daily net assets for the fiscal year and was calculated pursuant to clause (b)
of the compensation formula under the Plan. For the fiscal period July 28
through December 31, 1997, Class A and Class C shares of the Fund accrued
payments under the Plan amounting to $5,899 and $1,568, respectively, which
amounts are equal to 0.25% and 1.00% of the average daily net assets of Class A
and Class C, respectively, for such period.
    
 
    The Plan was adopted in order to permit the implementation of the Fund's
method of distribution. Under this distribution method the Fund offers four
Classes of shares, each with a different distribution arrangement as set forth
in the Prospectus.
 
                                       32
<PAGE>
   
    With respect to Class A shares, DWR compensates its account executives by
paying them, from proceeds of the front-end sales charge, commissions for the
sale of Class A shares, currently a gross sales credit of up to 5.0% of the
amount sold (except as provided in the following sentence) and an annual
residual commission, currently a residual of up to 0.25% of the current value of
the respective accounts for which they are the account executives or dealers of
record in all cases. On orders of $1 million or more (for which no sales charge
was paid) or net asset value purchases by employer-sponsored 401(k) and other
plans qualified under Section 401(a) of the Internal Revenue Code ("Qualified
Retirement Plans") for which Dean Witter Trust FSB ("DWT") serves as Trustee or
DWR's Retirement Plan Services serves as recordkeeper pursuant to a written
Recordkeeping Services Agreement, the Investment Manager compensates DWR's
account executives by paying them, from its own funds, a gross sales credit of
1.0% of the amount sold.
    
 
   
    With respect to Class B shares, DWR compensates its account executives by
paying them, from its own funds, commissions for the sale of Class B shares,
currently a gross sales credit of up to 5.0% of the amount sold (except as
provided in the following sentence) and an annual residual commission, currently
a residual of up to 0.25% of the current value (not including reinvested
dividends or distributions) of the amount sold in all cases. In the case of
Class B shares purchased on or after July 28, 1997 by Qualified Retirement Plans
for which DWT serves as Trustee or DWR's Retirement Plan Services serves as
recordkeeper pursuant to a written Recordkeeping Services Agreement, DWR
compensates its account executives by paying them, from its own funds, a gross
sales credit of 3.0% of the amount sold.
    
 
    With respect to Class C shares, DWR compensates its account executives by
paying them, from its own funds, commissions for the sale of Class C shares,
currently a gross sales credit of up to 1.0% of the amount sold and an annual
residual commission, currently a residual of up to 1.0% of the current value of
the respective accounts for which they are the account executives of record.
 
    With respect to Class D shares other than shares held by participants in
InterCapital's mutual fund asset allocation program, the Investment Manager
compensates DWR's account executives by paying them, from its own funds,
commissions for the sale of Class D shares, currently a gross sales credit of up
to 1.0% of the amount sold. There is a chargeback of 100% of the amount paid if
the Class D shares are redeemed in the first year and a chargeback of 50% of the
amount paid if the Class D shares are redeemed in the second year after
purchase. The Investment Manager also compensates DWR's account executives by
paying them, from its own funds, an annual residual commission, currently a
residual of up to 0.10% of the current value of the respective accounts for
which they are the account executives of record (not including accounts of
participants in the InterCapital mutual fund asset allocation program).
 
   
    The gross sales credit is a charge which reflects commissions paid by DWR to
its account executives and DWR's Fund-associated distribution-related expenses,
including sales compensation, and overhead and other branch office
distribution-related expenses including (a) the expenses of operating DWR's
branch offices in connection with the sale of Fund shares, including lease
costs, the salaries and employee benefits of operations and sales support
personnel, utility costs, communications costs and the costs of stationery and
supplies, (b) the costs of client sales seminars, (c) travel expenses of mutual
fund sales coordinators to promote the sale of Fund shares and (d) other
expenses relating to branch promotion of Fund sales. The distribution fee that
the Distributor receives from the Fund under the Plan, in effect, offsets
distribution expenses incurred under the Plan on behalf of the Fund and, in the
case of Class B shares, opportunity costs, such as the gross sales credit and an
assumed interest charge thereon ("carrying charge"). In the Distributor's
reporting of the distribution expenses to the Fund, in the case of Class B
shares, such assumed interest (computed at the "broker's call rate") has been
calculated on the gross credit as it is reduced by amounts received by the
Distributor under the Plan and any contingent deferred sales charges received by
the Distributor upon redemption of shares of the Fund. No other interest charge
is included as a distribution expense in the Distributor's calculation of its
distribution costs for this purpose. The broker's call rate is the interest rate
charged to securities brokers on loans secured by exchange-listed securities.
    
 
                                       33
<PAGE>
    The Fund is authorized to reimburse expenses incurred or to be incurred in
promoting the distribution of the Fund's Class A and Class C shares and in
servicing shareholder accounts. Reimbursement will be made through payments at
the end of each month. The amount of each monthly payment may in no event exceed
an amount equal to a payment at the annual rate of 0.25%, in the case of Class
A, and 1.0%, in the case of Class C, of the average net assets of the respective
Class during the month. No interest or other financing charges, if any, incurred
on any distribution expenses on behalf of Class A and Class C will be
reimbursable under the Plan. With respect to Class A, in the case of all
expenses other than expenses representing the service fee, and, with respect to
Class C, in the case of all expenses other than expenses representing a gross
sales credit or a residual to account executives, such amounts shall be
determined at the beginning of each calendar quarter by the Trustees, including
a majority of the Independent 12b-1 Trustees. Expenses representing the service
fee (for Class A) or a gross sales credit or a residual to account executives
(for Class C) may be reimbursed without prior determination. In the event that
the Distributor proposes that monies shall be reimbursed for other than such
expenses, then in making quarterly determinations of the amounts that may be
reimbursed by the Fund, the Distributor will provide and the Trustees will
review a quarterly budget of projected distribution expenses to be incurred on
behalf of the Fund, together with a report explaining the purposes and
anticipated benefits of incurring such expenses. The Trustees will determine
which particular expenses, and the portions thereof, that may be borne by the
Fund, and in making such a determination shall consider the scope of the
Distributor's commitment to promoting the distribution of the Fund's Class A and
Class C shares.
 
   
    Each class paid 100% of the amounts accrued under the Plan with respect to
that class for the fiscal year ended December 31, 1997, to the distributor. The
Distributor and DWR estimate that they have spent, pursuant to the Plan,
$307,487,751 on behalf of Class B since the inception of the Plan. It is
estimated that this amount was spent in approximately the following ways: (i)
1.44% ($4,431,205)-- advertising and promotional expenses; (ii) 0.15%
($466,800)--printing of prospectuses for distribution to other than current
shareholders; and (iii) 98.41% ($302,589,746)--other expenses, including the
gross sales credit and the carrying charge, of which 10.85% ($32,843,080)
represents carrying charges, 35.45% ($107,278,249) represents commission credits
to DWR branch offices for payments of commissions to account executives and
53.70% ($162,468,417) represents overhead and other branch office
distribution-related expenses. These amounts represent amounts paid by Class B
only. The amounts accrued by Class A and Class C for distribution during the
fiscal period July 28 through December 31, 1997 were for expenses which relate
to compensation of sales personnel and associated overhead expenses.
    
 
   
    In the case of Class B shares, at any given time, the expenses of
distributing shares of the Fund may be more or less than the total of (i) the
payments made by the Fund pursuant to the Plan and (ii) the proceeds of
contingent deferred sales charges paid by investors upon redemption of shares.
The Distributor has advised the Fund that in the case of Class B shares the
excess distribution expenses, including the carrying charge designed to
approximate the opportunity costs incurred by DWR which arise from it having
advanced monies without having received the amount of any sales charges imposed
at the time of sale of the Fund's Class B shares, totalled $63,773,437 as of
December 31, 1997. Because there is no requirement under the Plan that the
Distributor be reimbursed for all distribution expenses with respect to Class B
shares or any requirement that the Plan be continued from year to year, this
excess amount does not constitute a liability of the Fund. Although there is no
legal obligation for the Fund to pay expenses incurred in excess of payments
made to the Distributor under the Plan and the proceeds of contingent deferred
sales charges paid by investors upon redemption of shares, if for any reason the
Plan is terminated, the Trustees will consider at that time the manner in which
to treat such expenses. Any cumulative expenses incurred, but not yet recovered
through distribution fees or contingent deferred sales charges, may or may not
be recovered through future distribution fees or contingent deferred sales
charges.
    
 
    No interested person of the Fund nor any Trustee of the Fund who is not an
interested person of the Fund, as defined in the Act, has any direct financial
interest in the operation of the Plan except to the
 
                                       34
<PAGE>
extent that the Distributor, InterCapital, DWR, DWSC or certain of their
employees may be deemed to have such an interest as a result of benefits derived
from the successful operation of the Plan or as a result of receiving a portion
of the amounts expended thereunder by the Fund.
 
    Under its terms, the Plan had an initial term ending April 30, 1988 and will
continue from year to year thereafter, provided such continuance is approved
annually by a vote of the Trustees in the manner described above. Prior to the
Board's approval of amendments to the Plan to reflect the multiple-class
structure for the Fund, the most recent continuance of the Plan for one year,
until April 30, 1998, was approved by the Board of Trustees of the Fund,
including a majority of the Independent 12b-1 Trustees, at a Board meeting held
on April 24, 1997. Prior to approving the continuation of the Plan, the Trustees
requested and received from the Distributor and reviewed all the information
which they deemed necessary to arrive at an informed determination. In making
their determination to continue the Plan, the Trustees considered: (1) the
Fund's experience under the Plan and whether such experience indicates that the
Plan is operating as anticipated; (2) the benefits the Fund had obtained, was
obtaining and would be likely to obtain under the Plan; and (3) what services
had been provided and were continuing to be provided under the Plan to the Fund
and its shareholders. Based upon their review, the Trustees of the Fund,
including each of the Independent 12b-1 Trustees, determined that continuation
of the Plan would be in the best interest of the Fund and would have a
reasonable likelihood of continuing to benefit the Fund and its shareholders. In
the Trustees' quarterly review of the Plan, they will consider its continued
appropriateness and the level of compensation provided therein.
 
    The Plan may not be amended to increase materially the amount to be spent
for the services described therein without approval by the shareholders of the
affected Class or Classes of the Fund, and all material amendments to the Plan
must also be approved by the Trustees in the manner described above. The Plan
may be terminated at any time, without payment of any penalty, by vote of a
majority of the Independent 12b-1 Trustees or by a vote of a majority of the
outstanding voting securities of the Fund (as defined in the Act) on not more
than thirty days' written notice to any other party to the Plan. So long as the
Plan is in effect, the election and nomination of Independent 12b-1 Trustees
shall be committed to the discretion of the Independent 12b-1 Trustees.
 
DETERMINATION OF NET ASSET VALUE
- --------------------------------------------------------------------------------
 
    As stated in the Prospectus, short-term debt securities with remaining
maturities of 60 days or less at the time of purchase are valued at amortized
cost, unless the Trustees determine such does not reflect the securities' market
value, in which case these securities will be valued at their fair value as
determined by the Trustees. Other short-term debt securities will be valued on a
mark-to-market basis until such time as they reach a remaining maturity of 60
days, whereupon they will be valued at amortized cost using their value on the
61st day unless the Trustees determine such does not reflect the securities'
market value, in which case these securities will be valued at their fair value
as determined by the Trustees. Listed options on debt securities are valued at
the latest sale price on the exchange on which they are listed unless no sales
of such options have taken place that day, in which case they will be valued at
the mean between their latest bid and asked prices. Unlisted options on debt
securities and all options on equity securities are valued at the mean between
their latest bid and asked prices. Futures are valued at the latest sale price
on the commodities exchange on which they trade unless the Trustees determine
that such price does not reflect their market value, in which case they will be
valued at their fair value as determined by the Trustees. All other securities
and other assets are valued at their fair value as determined in good faith
under procedures established by and under the supervision of the Trustees.
 
    The net asset value per share for each Class of shares of the Fund is
determined once daily at 4:00 p.m., New York time (or, on days when the New York
Stock Exchange closes prior to 4:00 p.m., at such earlier time), on each day
that the New York Stock Exchange is open by taking the value of all assets of
the Fund, subtracting its liabilities, dividing by the number of shares
outstanding and adjusting
 
                                       35
<PAGE>
to the nearest cent. The New York Stock Exchange currently observes the
following holidays: New Year's Day, Reverend Dr. Martin Luther King, Jr. Day,
Presidents' Day, Good Friday, Memorial Day, Independence Day, Labor Day,
Thanksgiving Day and Christmas Day.
 
PURCHASE OF FUND SHARES
- --------------------------------------------------------------------------------
 
    As discussed in the Prospectus, the Fund offers four Classes of shares as
follows:
 
INITIAL SALES CHARGE ALTERNATIVE--CLASS A SHARES
 
    Class A shares are sold to investors with an initial sales charge that
declines to zero for larger purchases; however, Class A shares sold without an
initial sales charge are subject to a contingent deferred sales charge ("CDSC")
of 1.0% if redeemed within one year of purchase, except in the circumstances
discussed in the Prospectus.
 
    RIGHT OF ACCUMULATION.  As discussed in the Prospectus, investors may
combine the current value of shares purchased in separate transactions for
purposes of benefitting from the reduced sales charges available for purchases
of shares of the Fund totalling at least $25,000 in net asset value. For
example, if any person or entity who qualifies for this privilege holds Class A
shares of the Fund and/or other Dean Witter Funds that are multiple class funds
("Dean Witter Multi-Class Funds") or shares of other Dean Witter Funds sold with
a front-end sales charge purchased at a price including a front-end sales charge
having a current value of $5,000, and purchases $20,000 of additional shares of
the Fund, the sales charge applicable to the $20,000 purchase would be 4.75% of
the offering price.
 
   
    The Distributor must be notified by the selected broker-dealer or the
shareholder at the time a purchase order is placed that the purchase qualifies
for the reduced charge under the Right of Accumulation. Similar notification
must be made in writing by the selected broker-dealer or shareholder when such
an order is placed by mail. The reduced sales charge will not be granted if: (a)
such notification is not furnished at the time of the order; or (b) a review of
the records of the Distributor or Dean Witter Trust FSB (the "Transfer Agent")
fails to confirm the investor's represented holdings.
    
 
    LETTER OF INTENT.  As discussed in the Prospectus, reduced sales charges are
available to investors who enter into a written Letter of Intent providing for
the purchase, within a thirteen-month period, of Class A shares of the Fund from
the Distributor or from a single Selected Broker-Dealer.
 
    A Letter of Intent permits an investor to establish a total investment goal
to be achieved by any number of purchases over a thirteen-month period. Each
purchase of Class A shares made during the period will receive the reduced sales
commission applicable to the amount represented by the goal, as if it were a
single purchase. A number of shares equal in value to 5% of the dollar amount of
the Letter of Intent will be held in escrow by the Transfer Agent, in the name
of the shareholder. The initial purchase under a Letter of Intent must be equal
to at least 5% of the stated investment goal.
 
    The Letter of Intent does not obligate the investor to purchase, nor the
Fund to sell, the indicated amount. In the event the Letter of Intent goal is
not achieved within the thirteen-month period, the investor is required to pay
the difference between the sales charge otherwise applicable to the purchases
made during this period and sales charges actually paid. Such payment may be
made directly to the Distributor or, if not paid, the Distributor is authorized
by the shareholder to liquidate a sufficient number of his or her escrowed
shares to obtain such difference.
 
    If the goal is exceeded and purchases pass the next sales charge level, the
sales charge on the entire amount of the purchase that results in passing that
level and on subsequent purchases will be subject to further reduced sales
charges in the same manner as set forth above under "Right of Accumulation," but
there will be no retroactive reduction of sales charges on previous purchases.
For the purpose of determining whether the investor is entitled to a further
reduced sales charge applicable to purchases at or above a sales charge level
which exceeds the stated goal of a Letter of Intent, the cumulative current net
asset value of any shares owned by the investor in any other Dean Witter Funds
held by the shareholder which were previously purchased at a price including a
front-end sales charge
 
                                       36
<PAGE>
(including shares of the Fund and other Dean Witter Funds acquired in exchange
for those shares, and including in each case shares acquired through
reinvestment of dividends and distributions) will be added to the cost or net
asset value of shares of the Fund owned by the investor. However, shares of
"Exchange Funds" (see "Shareholder Services--Exchange Privilege") and the
purchase of shares of other Dean Witter Funds will not be included in
determining whether the stated goal of a Letter of Intent has been reached.
 
    At any time while a Letter of Intent is in effect, a shareholder may, by
written notice to the Distributor, increase the amount of the stated goal. In
that event, only shares purchased during the previous 90-day period and still
owned by the shareholder will be included in the new sales charge reduction. The
5% escrow and minimum purchase requirements will be applicable to the new stated
goal. Investors electing to purchase shares of the Fund pursuant to a Letter of
Intent should carefully read such Letter of Intent.
 
CONTINGENT DEFERRED SALES CHARGE ALTERNATIVE--CLASS B SHARES
 
   
    Class B shares are sold without an initial sales charge but are subject to a
CDSC payable upon most redemptions within six years after purchase. As stated in
the Prospectus, a CDSC will be imposed on any redemption by an investor if after
such redemption the current value of the investor's Class B shares of the Fund
is less than the dollar amount of all payments by the shareholder for the
purchase of Class B shares during the preceding six years (or, in the case of
shares held by certain Qualified Retirement Plans, three years). However, no
CDSC will be imposed to the extent that the net asset value of the shares
redeemed does not exceed: (a) the current net asset value of shares purchased
more than six years (or, in the case of shares held by certain Qualified
Retirement Plans, three years) prior to the redemption, plus (b) the current net
asset value of shares purchased through reinvestment of dividends or
distributions of the Fund or another Dean Witter Fund (see "Shareholder
Services--Targeted Dividends"), plus (c) the current net asset value of shares
acquired in exchange for (i) shares of Dean Witter front-end sales charge funds,
or (ii) shares of other Dean Witter Funds for which shares of front-end sales
charge funds have been exchanged (see "Shareholder Services--Exchange
Privilege"), plus (d) increases in the net asset value of the investor's shares
above the total amount of payments for the purchase of Fund shares made during
the preceding six (three) years. The CDSC will be paid to the Distributor.
    
 
   
    In determining the applicability of the CDSC to each redemption, the amount
which represents an increase in the net asset value of the investor's shares
above the amount of the total payments for the purchase of shares within the
last six years (or, in the case of shares held by certain Qualified Retirement
Plans, three years) will be redeemed first. In the event the redemption amount
exceeds such increase in value, the next portion of the amount redeemed will be
the amount which represents the net asset value of the investor's shares
purchased more than six (three) years prior to the redemption and/or shares
purchased through reinvestment of dividends or distributions and/or shares
acquired in exchange for shares of Dean Witter front-end sales charge funds, or
for shares of other Dean Witter funds for which shares of front-end sales charge
funds have been exchanged. A portion of the amount redeemed which exceeds an
amount which represents both such increase in value and the value of shares
purchased more than six years (or, in the case of shares held by certain
Qualified Retirement Plans, three years) prior to the redemption and/or shares
purchased through reinvestment of dividends or distributions and/ or shares
acquired in the above-described exchanges will be subject to a CDSC.
    
 
    The amount of the CDSC, if any, will vary depending on the number of years
from the time of payment for the purchase of Class B shares of the Fund until
the time of redemption of such shares. For purposes of determining the number of
years from the time of any payment for the purchase of shares,
 
                                       37
<PAGE>
all payments made during a month will be aggregated and deemed to have been made
on the last day of the month. The following table sets forth the rates of the
CDSC applicable to most Class B shares of the Fund:
 
<TABLE>
<CAPTION>
                  YEAR SINCE                        CDSC AS A
                   PURCHASE                       PERCENTAGE OF
                 PAYMENT MADE                    AMOUNT REDEEMED
- ----------------------------------------------  -----------------
<S>                                             <C>
First.........................................            5.0%
Second........................................            4.0%
Third.........................................            3.0%
Fourth........................................            2.0%
Fifth.........................................            2.0%
Sixth.........................................            1.0%
Seventh and thereafter........................          None
</TABLE>
 
   
    The following table sets forth the rates of the CDSC applicable to Class B
shares of the Fund purchased on or after July 28, 1997 by Qualified Retirement
Plans for which DWT serves as Trustee or DWR's Retirement Plan services serves
as recordkeeper pursuant to a written Recordkeeping Services Agreement:
    
 
<TABLE>
<CAPTION>
                  YEAR SINCE                        CDSC AS A
                   PURCHASE                       PERCENTAGE OF
                 PAYMENT MADE                    AMOUNT REDEEMED
- ----------------------------------------------  -----------------
<S>                                             <C>
First.........................................            2.0%
Second........................................            2.0%
Third.........................................            1.0%
Fourth and thereafter.........................          None
</TABLE>
 
   
    In determining the rate of the CDSC, it will be assumed that a redemption is
made of shares held by the investor for the longest period of time within the
applicable six-year or three-year period. This will result in any such CDSC
being imposed at the lowest possible rate. The CDSC will be imposed, in
accordance with the table shown above, on any redemptions within six years (or,
in the case of shares held by certain Qualified Retirement Plans, three years)
of purchase which are in excess of these amounts and which redemptions do not
qualify for waiver of the CDSC, as described in the Prospectus.
    
 
LEVEL LOAD ALTERNATIVE--CLASS C SHARES
 
    Class C shares are sold without a sales charge but are subject to a CDSC of
1.0% on most redemptions made within one year after purchase, except in the
circumstances discussed in the Prospectus.
 
NO LOAD ALTERNATIVE--CLASS D SHARES
 
    Class D shares are offered without any sales charge on purchase or
redemption. Class D shares are offered only to those persons meeting the
qualifications set forth in the Prospectus.
 
SHAREHOLDER SERVICES
- --------------------------------------------------------------------------------
 
    Upon the purchase of shares of the Fund, a Shareholder Investment Account is
opened for the investor on the books of the Fund and maintained by the Transfer
Agent. This is an open account in which shares owned by the investor are
credited by the Transfer Agent in lieu of issuance of a share certificate. If a
share certificate is desired, it must be requested in writing for each
transaction. Certificates are issued only for full shares and may be redeposited
in the account at any time. There is no charge to the investor for issuance of a
certificate. Whenever a shareholder instituted transaction takes place in the
Shareholder Investment Account, the shareholder will be mailed a confirmation of
the transaction from the Fund or from DWR or other selected broker-dealer.
 
    AUTOMATIC INVESTMENT OF DIVIDENDS AND DISTRIBUTIONS.  As stated in the
Prospectus, all income dividends and capital gains distributions are
automatically paid in full and fractional shares of the
 
                                       38
<PAGE>
   
applicable Class of the Fund, unless the shareholder requests that they be paid
in cash. Each purchase of shares of the Fund is made upon the condition that the
Transfer Agent is thereby automatically appointed as agent of the investor to
receive all dividends and capital gains distributions on shares owned by the
investor. Such dividends and distributions will be paid, at the net asset value
per share, in shares of the applicable Class of the Fund (or in cash if the
shareholder so requests) as of the close of business on the record date. At any
time an investor may request the Transfer Agent, in writing, to have subsequent
dividends and/or capital gains distributions paid to him or her in cash rather
than shares. To assure sufficient time to process the change, such request
should be received by the Transfer Agent at least five business days prior to
the record date of the dividend or distribution. In the case of recently
purchased shares for which registration instructions have not been received on
the record date, cash payments will be made to DWR or other selected
broker-dealer, which will be forwarded to the shareholder, upon the receipt of
proper instructions. It has been and remains the Fund's policy and practice
that, if checks for dividends or distributions paid in cash remain uncashed, no
interest will accrue on amounts represented by such checks.
    
 
    TARGETED DIVIDENDS.-SM-  In states where such is legally permissible,
shareholders may also have all income dividends and capital gains distributions
automatically invested in shares of any Class of an open-end Dean Witter Fund
other than the Dean Witter Utilities Fund or in another Class of Dean Witter
Utilities Fund. Such investment will be made as described above for automatic
investment in shares of the applicable Class of the Fund, at the net asset value
per share of the selected Dean Witter Fund as of the close of business on the
payment date of the dividend or distribution and will begin to earn dividends,
if any, in the selected Dean Witter Fund the next business day. To participate
in the Targeted Dividends program, shareholders should contact their DWR or
other selected broker-dealer account executive or the Transfer Agent.
Shareholders of Dean Witter Utilities Fund must be shareholders of the selected
Class of the Dean Witter Fund targeted to receive investments from dividends at
the time they enter the Targeted Dividends program. Investors should review the
prospectus of the targeted Dean Witter Fund before entering the program.
 
   
    EASYINVEST.-SM-  Shareholders may subscribe to EasyInvest, an automatic
purchase plan which provides for any amount from $100 to $5,000 to be
transferred automatically from a checking or savings account or following
redemption of shares of a Dean Witter money market fund, on a semi-monthly,
monthly or quarterly basis, to the Transfer Agent for investment in shares of
the Fund. Shares purchased through EasyInvest will be added to the shareholder's
existing account at the net asset value calculated the same business day the
transfer of funds is effected (subject to any applicable sales charges). Shares
of the Dean Witter money market funds redeemed in connection with EasyInvest are
redeemed on the business day preceding the transfer of funds. For further
information or to subscribe to EasyInvest, shareholders should contact their DWR
or other selected dealer account executive or the Transfer Agent.
    
 
    INVESTMENT OF DISTRIBUTIONS RECEIVED IN CASH.  As discussed in the
Prospectus, any shareholder who receives a cash payment representing a dividend
or distribution may invest such dividend or distribution in shares of the
applicable Class at net asset value, without the imposition of a CDSC upon
redemption, by returning the check or the proceeds to the Transfer Agent within
30 days after the payment date. If the shareholder returns the proceeds of a
dividend or distribution, such funds must be accompanied by a signed statement
indicating that the proceeds constitute a dividend or distribution to be
invested. Such investment will be made at the net asset value per share next
determined after receipt of the proceeds by the Transfer Agent.
 
    SYSTEMATIC WITHDRAWAL PLAN.  As discussed in the Prospectus, a withdrawal
plan is available for shareholders who own or purchase shares of the Fund having
a minimum value of $10,000 based upon the then current net asset value. The
Withdrawal Plan provides for monthly or quarterly (March, June, September and
December) checks in any dollar amount, not less than $25, or in any whole
percentage of the account balance, on an annualized basis. Any applicable CDSC
will be imposed on shares redeemed under the Withdrawal Plan (see "Purchase of
Fund Shares"). Therefore, any shareholder
 
                                       39
<PAGE>
participating in the Withdrawal Plan will have sufficient shares redeemed from
his or her account so that the proceeds (net of any applicable CDSC) to the
shareholder will be the designated monthly or quarterly amount.
 
    The Transfer Agent acts as agent for the shareholder in tendering to the
Fund for redemption sufficient full and fractional shares to provide the amount
of the periodic withdrawal payment designated in the application. The shares
will be redeemed at their net asset value determined, at the shareholder's
option, on the tenth or twenty-fifth day (or next following business day) of the
relevant month or quarter and normally a check for the proceeds will be mailed
by the Transfer Agent, or amounts credited to a shareholder's DWR or other
selected broker-dealer brokerage account, within five business days after the
date of redemption. The Withdrawal Plan may be terminated at any time by the
Fund.
 
    Withdrawal Plan payments should not be considered as dividends, yields or
income. If periodic withdrawal plan payments continuously exceed net investment
income and net capital gains, the shareholder's original investment will be
correspondingly reduced and ultimately exhausted.
 
    Each withdrawal constitutes a redemption of shares and any gain or loss
realized must be recognized for federal income tax purposes. Although the
shareholder may make additional investments of $2,500 or more under the
Withdrawal Plan, withdrawals made concurrently with purchases of additional
shares may be inadvisable because of sales charges which may be applicable to
purchases or redemptions of shares (see "Purchase of Fund Shares").
 
    Any shareholder who wishes to have payments under the Withdrawal Plan made
to a third party or sent to an address other than the one listed on the account
must send complete written instructions to the Transfer Agent to enroll in the
Withdrawal Plan. The shareholder's signature on such instructions must be
guaranteed by an eligible guarantor acceptable to the Transfer Agent
(shareholders should contact the Transfer Agent for a determination as to
whether a particular institution is such an eligible guarantor). A shareholder
may, at any time, change the amount and interval of withdrawal payments and the
address to which checks are mailed may be changed by written notification to the
Transfer Agent. In addition, the party and/or the address to which checks are
mailed may be changed by written notification to the Transfer Agent, with
signature guarantees required in the manner described above. The shareholder may
also terminate the Withdrawal Plan at any time by written notice to the Transfer
Agent. In the event of such termination, the account will be continued as a
Shareholder Investment Account. The shareholder may also redeem all or part of
the shares held in the Systematic Withdrawal Plan account (see "Redemptions and
Repurchases") at any time.
 
    TAX-SHELTERED RETIREMENT PLANS.  Retirement plans are available for use by
corporations, the self-employed, Individual Retirement Accounts and Custodial
Accounts under Section 403(b)(7) of the Internal Revenue Code. Adoption of such
plans should be on advice of legal counsel or tax adviser.
 
    For further information regarding plan administration, custodial fees and
other details, investors should contact the Distributor or the Fund.
 
    DIRECT INVESTMENTS THROUGH TRANSFER AGENT.  As discussed in the Prospectus,
shareholders may make additional investments in any Class of shares of the Fund
for which they qualify at any time by sending a check in any amount, not less
than $100, payable to Dean Witter Utilities Fund, and indicating the selected
Class, directly to the Fund's Transfer Agent. In the case of Class A shares,
after deduction of any applicable sales charge, the balance will be applied to
the purchase of Fund shares, and, in the case of shares of the other Classes,
the entire amount will be applied to the purchase of Fund shares, at the net
asset value per share next computed after receipt of the check or purchase
payment by the Transfer Agent. The shares so purchased will be credited to the
investor's account.
 
EXCHANGE PRIVILEGE
 
    As discussed in the Prospectus, the Fund makes available to its shareholders
an Exchange Privilege whereby shareholders of each Class of shares of the Fund
may exchange their shares for shares of the same Class of shares of any other
Dean Witter Multi-Class Fund without the imposition of any
 
                                       40
<PAGE>
   
exchange fee. Shares may also be exchanged for shares of any of the following
funds: Dean Witter Short-Term U.S. Treasury Trust, Dean Witter Limited Term
Municipal Trust, Dean Witter Short-Term Bond Fund, Dean Witter Intermediate Term
U.S. Treasury Trust and five Dean Witter Funds which are money market funds (the
foregoing nine funds are hereinafter referred to as the "Exchange Funds"). Class
A shares may also be exchanged for shares of Dean Witter Multi-State Municipal
Series Trust and Dean Witter Hawaii Municipal Trust, which are Dean Witter Funds
sold with a front-end sales charge ("FSC Funds"). Class B shares may also be
exchanged for shares of Dean Witter Global Short-Term Income Fund Inc. ("Global
Short-Term"), which is a Dean Witter Fund offered with a CDSC. Exchanges may be
made after the shares of the Fund acquired by purchase (not by exchange or
dividend reinvestment) have been held for thirty days. There is no waiting
period for exchanges of shares acquired by exchange or dividend reinvestment. An
exchange will be treated for federal income tax purposes the same as a
repurchase or redemption of shares, on which the shareholder may realize a
capital gain or loss.
    
 
    Any new account established through the Exchange Privilege will have the
same registration and cash dividend or dividend reinvestment plan as the present
account, unless the Transfer Agent receives written notification to the
contrary. For telephone exchanges, the exact registration of the existing
account and the account number must be provided.
 
    Any shares held in certificate form cannot be exchanged but must be
forwarded to the Transfer Agent and deposited into the shareholder's account
before being eligible for exchange. (Certificates mailed in for deposit should
not be endorsed.)
 
   
    As described below, and in the Prospectus under the caption "Purchase of
Fund Shares," a CDSC may be imposed upon a redemption, depending on a number of
factors, including the number of years from the time of purchase until the time
of redemption or exchange ("holding period"). When shares of a Dean Witter
Multi-Class Fund or Global Short-Term are exchanged for shares of an Exchange
Fund, the exchange is executed at no charge to the shareholder, without the
imposition of the CDSC at the time of the exchange. During the period of time
the shareholder remains in the Exchange Fund (calculated from the last day of
the month in which the Exchange Fund shares were acquired), the holding period
or "year since purchase payment made" is frozen. When shares are redeemed out of
the Exchange Fund, they will be subject to a CDSC which would be based upon the
period of time the shareholder held shares in a Dean Witter Multi-Class Fund or
Global Short-Term. However, in the case of shares exchanged into an Exchange
Fund on or after April 23, 1990, upon a redemption of shares which results in a
CDSC being imposed, a credit (not to exceed the amount of the CDSC) will be
given in an amount equal to the Exchange Fund 12b-1 distribution fees incurred
on or after that date which are attributable to those shares. Shareholders
acquiring shares of an Exchange Fund pursuant to this exchange privilege may
exchange those shares back into a Dean Witter Multi-Class Fund or Global
Short-Term from the Exchange Fund, with no CDSC being imposed on such exchange.
The holding period previously frozen when shares were first exchanged for shares
of the Exchange Fund resumes on the last day of the month in which shares of a
Dean Witter Multi-Class Fund or of Global Short-Term are reacquired. A CDSC is
imposed only upon an ultimate redemption, based upon the time (calculated as
described above) the shareholder was invested in a Dean Witter Multi-Class Fund
or in Global Short-Term. In the case of exchanges of Class A shares which are
subject to a CDSC, the holding period also includes the time (calculated as
described above) the shareholder was invested in a FSC Fund.
    
 
   
    When shares initially purchased in a Dean Witter Multi-Class Fund or in
Global Short-Term are exchanged for shares of a Dean Witter Multi-Class Fund,
shares of Global Short-Term, shares of a FSC Fund, or shares of an Exchange
Fund, the date of purchase of the shares of the fund exchanged into, for
purposes of the CDSC upon redemption, will be the last day of the month in which
the shares being exchanged were originally purchased. In allocating the purchase
payments between funds for purposes of the CDSC, the amount which represents the
current net asset value of shares at the time of the exchange which were (i)
purchased more than one, three or six years (depending on the CDSC schedule
applicable to the shares) prior to the exchange, (ii) originally acquired
through reinvestment of dividends or distributions and (iii) acquired in
exchange for shares of FSC Funds, or for shares of other Dean Witter Funds for
which shares of FSC Funds have been exchanged (all such shares called "Free
    
 
                                       41
<PAGE>
Shares"), will be exchanged first. After an exchange, all dividends earned on
shares in an Exchange Fund will be considered Free Shares. If the exchanged
amount exceeds the value of such Free Shares, an exchange is made, on a
block-by-block basis, of non-Free Shares held for the longest period of time
(except that, with respect to Class B shares, if shares held for identical
periods of time but subject to different CDSC schedules are held in the same
Exchange Privilege account, the shares of that block that are subject to a lower
CDSC rate will be exchanged prior to the shares of that block that are subject
to a higher CDSC rate). Shares equal to any appreciation in the value of
non-Free Shares exchanged will be treated as Free Shares, and the amount of the
purchase payments for the non-Free Shares of the fund exchanged into will be
equal to the lesser of (a) the purchase payments for, or (b) the current net
asset value of, the exchanged non-Free Shares. If an exchange between funds
would result in exchange of only part of a particular block of non-Free Shares,
then shares equal to any appreciation in the value of the block (up to the
amount of the exchange) will be treated as Free Shares and exchanged first, and
the purchase payment for that block will be allocated on a pro rata basis
between the non-Free Shares of that block to be retained and the non-Free Shares
to be exchanged. The prorated amount of such purchase payment attributable to
the retained non-Free Shares will remain as the purchase payment for such
shares, and the amount of purchase payment for the exchanged non-Free Shares
will be equal to the lesser of (a) the prorated amount of the purchase payment
for, or (b) the current net asset value of, those exchanged non-Free Shares.
Based upon the procedures described in the Prospectus under the caption
"Purchase of Fund Shares," any applicable CDSC will be imposed upon the ultimate
redemption of shares of any fund, regardless of the number of exchanges since
those shares were originally purchased.
 
    With respect to the redemption or repurchase of shares of the Fund, the
application of proceeds to the purchase of new shares in the Fund or any other
of the funds and the general administration of the Exchange Privilege, the
Transfer Agent acts as agent for the Distributor and for the shareholder's
selected broker-dealer, if any, in the performance of such functions. With
respect to exchanges, redemptions or repurchases, the Transfer Agent shall be
liable for its own negligence and not for the default or negligence of its
correspondents or for losses in transit. The Fund shall not be liable for any
default or negligence of the Transfer Agent, the Distributor or any selected
broker-dealer.
 
    The Distributor and any selected broker-dealer have authorized and appointed
the Transfer Agent to act as their agent in connection with the application of
proceeds of any redemption of Fund shares to the purchase of shares of any other
fund and the general administration of the Exchange Privilege. No commission or
discounts will be paid to the Distributor or any selected broker-dealer for any
transactions pursuant to this Exchange Privilege.
 
    Exchanges are subject to the minimum investment requirement and any other
conditions imposed by each fund. (The minimum initial investment for the
Exchange Privilege account of each Class is $5,000 for Dean Witter Liquid Asset
Fund Inc., Dean Witter Tax-Free Daily Income Trust, Dean Witter California
Tax-Free Daily Income Trust and Dean Witter New York Municipal Money Market
Trust, although those funds may, in their discretion, accept initial investments
of as low as $1,000. The minimum initial investment for the Exchange Privilege
account of each Class is $10,000 for Dean Witter Short-Term U.S. Treasury Trust,
although that fund, in its discretion, may accept initial purchases of as low as
$5,000. The minimum initial investment for the Exchange Privilege account of
each Class is $5,000 for Dean Witter Special Value Fund. The minimum initial
investment for the Exchange Privilege account of each Class of all other Dean
Witter Funds for which the Exchange Privilege is available is $1,000.) Upon
exchange into an Exchange Fund, the shares of that fund will be held in a
special Exchange Privilege Account separately from accounts of those
shareholders who have acquired their shares directly from that fund. As a
result, certain services normally available to shareholders of those funds,
including the check writing feature, will not be available for funds held in
that account.
 
    The Fund and each of the other Dean Witter Funds may limit the number of
times this Exchange Privilege may be exercised by any investor within a
specified period of time. Also, the Exchange Privilege
 
                                       42
<PAGE>
may be terminated or revised at any time by the Fund and/or any of the Dean
Witter funds for whichshares of the Fund have been exchanged, upon such notice
as may be required by applicable regulatory agencies (presently sixty days'
prior written notice for termination or material revision), provided that six
months' prior written notice of termination will be given to the shareholders
who hold shares of Exchange Funds pursuant to the Exchange Privilege, and
provided further that the Exchange Privilege may be terminated or materially
revised without notice at times (a) when the New York Stock Exchange is closed
for other than customary weekends and holidays, (b) when trading on that
Exchange is restricted, (c) when an emergency exists as a result of which
disposal by the Fund of securities owned by it is not reasonably practicable or
it is not reasonably practicable for the Fund fairly to determine the value of
its net assets, (d) during any other period when the Securities and Exchange
Commission by order so permits (provided that applicable rules and regulations
of the Securities and Exchange Commission shall govern as to whether the
conditions prescribed in (b) or (c) exist) or (e) if the Fund would be unable to
invest amounts effectively in accordance with its investment objective, policies
and restrictions.
 
    For further information regarding the Exchange Privilege, shareholders
should contact their DWR or other selected broker-dealer account executive or
the Transfer Agent.
 
REDEMPTIONS AND REPURCHASES
- --------------------------------------------------------------------------------
 
    REDEMPTION.  As stated in the Prospectus, shares of each Class of the Fund
can be redeemed for cash at any time at the net asset value per share next
determined; however, such redemption proceeds will be reduced by the amount of
any applicable CDSC. If shares are held in a shareholder's account without a
share certificate, a written request for redemption to the Fund's Transfer Agent
at P.O. Box 983, Jersey City, NJ 07303 is required. If certificates are held by
the shareholders, the shares may be redeemed by surrendering the certificates
with a written request for redemption. The share certificate, or an accompanying
stock power, and the request for redemption, must be signed by the shareholder
or shareholders exactly as the shares are registered. Each request for
redemption, whether or not accompanied by a share certificate, must be sent to
the Fund's Transfer Agent, which will redeem the shares at their net asset value
next computed (see "Purchase of Fund Shares" in the Prospectus) after it
receives the request, and certificate, if any, in good order. Any redemption
request received after such computation will be redeemed at the next determined
net asset value. The term "good order" means that the share certificate, if any,
and request for redemption are properly signed, accompanied by any documentation
required by the Transfer Agent, and bear signature guarantees when required by
the Fund or the Transfer Agent. If redemption is requested by a corporation,
partnership, trust or fiduciary, the Transfer Agent may require that written
evidence of authority acceptable to the Transfer Agent be submitted before such
request is accepted.
 
    Whether certificates are held by the shareholder or shares are held in a
shareholder's account, if the proceeds are to be paid to any person other than
the record owner, or if the proceeds are to be paid to a corporation (other than
the Distributor or a selected broker-dealer for the account of the shareholder),
partnership, trust or fiduciary, or sent to the shareholder at an address other
than the registered address, signatures must be guaranteed by an eligible
guarantor acceptable to the Transfer Agent (shareholders should contact the
Transfer Agent for a determination as to whether a particular institution is
such an eligible guarantor). A stock power may be obtained from any dealer or
commercial bank. The Fund may change the signature guarantee requirements from
time to time upon notice to shareholders, which may be a means of a supplement
to the prospectus or a new prospectus.
 
    REPURCHASE.  As stated in the Prospectus, DWR and other selected
broker-dealers are authorized to repurchase shares represented by a share
certificate which is delivered to any of their offices. Shares held in a
shareholder's account without a share certificate may also be repurchased by DWR
and other selected broker-dealers upon the telephonic request of the
shareholder. The repurchase price is the net asset value next computed after
such purchase order is received by DWR or other selected broker-dealer reduced
by any applicable CDSC.
 
                                       43
<PAGE>
   
    PAYMENT FOR SHARES REDEEMED OR REPURCHASED.  As discussed in the Prospectus,
payment for shares of any Class presented for repurchase or redemption will be
made by check within seven days after receipt by the Transfer Agent of the
certificate and/or written request in good order. Such payment may be postponed
or the right of redemption suspended at times (a) when the New York Stock
Exchange is closed for other than customary weekends and holidays, (b) when
trading on that Exchange is restricted, (c) when an emergency exists as a result
of which disposal by the Fund of securities owned by it is not reasonably
practicable or it is not reasonably practicable for the Fund to fairly determine
the value of its net assets, or (d) during any other period when the Securities
and Exchange Commission by order so permits; provided that applicable rules and
regulations of the Securities and Exchange Commission shall govern as to whether
the conditions prescribed in (b) or (c) exist. If the shares to be redeemed have
recently been purchased by check, payment of the redemption proceeds may be
delayed for the minimum time needed to verify that the check used for investment
has been honored (not more than fifteen days from the time of receipt of the
check by the Transfer Agent). It has been and remains the Fund's policy and
practice that, if checks for redemption proceeds remain uncashed, no interest
will accrue on amounts represented by such uncashed checks. Shareholders
maintaining margin accounts with DWR or another selected dealer are referred to
their account executive regarding restrictions on redemption of shares of the
Fund pledged in the margin account.
    
 
    TRANSFERS OF SHARES.  In the event a shareholder requests a transfer of any
shares to a new registration, such shares will be transferred without sales
charge at the time of transfer. With regard to the status of shares which are
either subject to the CDSC or free of such charge (and with regard to the length
of time shares subject to the charge have been held), any transfer involving
less than all of the shares in account will be made on a pro-rata basis (that
is, by transferring shares in the same proportion that the transferred shares
bear to the total shares in the account immediately prior to the transfer). The
transferred shares will continue to be subject to any applicable CDSC as if they
had not been so transferred.
 
    REINSTATEMENT PRIVILEGE.  As discussed in the Prospectus, a shareholder who
has had his or her shares redeemed or repurchased and has not previously
exercised this reinstatement privilege may within 35 days after the date of
redemption or repurchase reinstate any portion or all of the proceeds of such
redemption or repurchase in shares of the Fund in the same Class at the net
asset value next determined after a reinstatement request, together with the
proceeds, is received by the Transfer Agent.
 
    Exercise of the reinstatement privilege will not affect the federal income
tax treatment of any gain or loss realized upon the redemption or repurchase,
except that if the redemption or repurchase resulted in a loss and reinstatement
is made in shares of the Fund, some or all of the loss, depending on the amount
reinstated, will not be allowed as a deduction for federal income tax purposes,
but will be applied to adjust the cost basis of the shares acquired upon
reinstatement.
 
    INVOLUNTARY REDEMPTION.  As discussed in the Prospectus, the Fund reserves
the right, on 60 days' notice, to redeem, at their net asset value, the shares
of any shareholder whose shares due to redemptions by the shareholder have a
value of less than $100 or such lesser amount as may be fixed by the Trustees.
However, before the Fund redeems such shares and sends the proceeds to the
shareholder, it will notify the shareholder that the value of the shares is less
than $100 and allow him or her 60 days to make an additional investment in an
amount which will increase the value of his or her account to $100 or more
before the redemption is processed. No CDSC will be imposed on any involuntary
redemption.
 
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
    The Fund will determine either to distribute or to retain all or part of any
net long-term capital gains in any year for reinvestment. If any such gains are
retained, the Fund will pay federal income tax thereon, and shareholders will be
able to claim their share of the tax paid by the Fund as a credit against their
individual federal income tax.
 
                                       44
<PAGE>
   
    Because the Fund intends to distribute all of its net investment income and
capital gains to shareholders and otherwise continue to qualify as a regulated
investment company under Subchapter M of the Internal Revenue Code, it is not
expected that the Fund will be required to pay any federal income tax. In
addition, the Fund intends to distribute to its shareholders each calendar year
a sufficient amount of ordinary income and capital gains to avoid the imposition
of a 4% excise tax. Shareholders will normally have to pay federal income taxes,
and any state income taxes, on the dividends and distributions they receive from
the Fund. Such dividends and distributions, to the extent that they are derived
from the net investment income or short-term capital gains, are taxable to the
shareholder as ordinary income regardless of whether the shareholder receives
such payments in additional shares or in cash. Any dividends declared in the
last quarter of any year which are paid in the following year prior to February
1 will be deemed received by the shareholder in the prior year.
    
 
    Gains or losses on the Fund's transactions, if any, in listed options on
non-equity securities, futures and options on futures generally are treated as
60% long-term and 40% short-term. When the Fund engages in options and futures
transactions, various tax regulations applicable to the Fund may have the effect
of causing the Fund to recognize a gain or loss for tax purposes before that
gain or loss is realized, or to defer recognition of a realized loss for tax
purposes. Recognition, for tax purposes, of an unrealized loss may result in a
lesser amount of the Fund's realized net short-term gains being available for
distribution.
 
   
    Gains or losses on sales of securities by the Fund will be long-term capital
gains or losses if the securities have a tax holding period of more than twelve
months. Gains or losses on the sale of securities with a tax holding period of
twelve months or less will be short-term gains or losses.
    
 
   
    Distributions of net long-term capital gains, if any, are taxable to
shareholders as long-term capital gains regardless of how long a shareholder has
held the Fund's shares and regardless of whether the distribution is received in
additional shares or in cash. Capital gains distributions are not eligible for
the dividends received deduction. It is expected that the Treasury intends to
issue regulations or to permit shareholders to take into account their
proportionate share of the Fund's capital gains distributions that will be
subject to a reduced rate under the Taxpayer Relief Act of 1997. The Taxpayer
Relief Act reduces the maximum tax on long-term capital gains from 28% to 20%;
however, it also lengthens the required holding period to obtain the lower rate
from more than 12 months to more than 18 months. The lower rates do not apply to
collectibles and certain other assets. Additionally, the maximum capital gain
rate for assets that are held more than five years and that are acquired after
December 31, 2000 is 18%.
    
 
   
    Any loss realized by shareholders upon a redemption of shares within six
months of the date of their purchase will be treated as a long-term capital loss
to the extent of any distributions of net long-term capital gains during the
six-month period.
    
 
    As stated under "Investment Practices and Policies", the Fund may invest up
to 35% of its portfolio in securities other than in the utilities industry,
including U.S. Government securities. Under current federal tax law, the Fund
will receive net investment income in the form of interest by virtue of holding
Treasury bills, notes and bonds, and will recognize income attributable to it
from holding zero coupon Treasury securities. Current federal tax law requires
that a holder (such as the Fund) of a zero coupon security accrue a portion of
the discount at which the security was purchased as income each year even though
the Fund receives no interest payment in cash on the security during the year.
As an investment company, the Fund must pay out substantially all of its net
investment income each year. Accordingly, the Fund, to the extent it invests in
zero coupon Treasury securities, may be required to pay out as an income
distribution each year an amount which is greater than the total amount of cash
receipts of interest the Fund actually received. Such distributions will be made
from the available cash of the Fund or by liquidation of portfolio securities if
necessary. If a distribution of cash necessitates the liquidation of portfolio
securities, the Investment Manager will select which securities to sell. The
Fund may realize a gain or loss from such sales. In the event the Fund realizes
net capital gains from such transactions, its shareholders may receive a larger
capital gain distribution, if any, than they would in the absence of such
transactions.
 
                                       45
<PAGE>
    Any dividend or capital gains distribution received by a shareholder from
any investment company will have the effect of reducing the net asset value of
the shareholder's stock in that company by the exact amount of the dividend or
capital gains distribution. Furthermore, capital gains distributions and
dividends are subject to federal income taxes. If the net asset value of the
shares should be reduced below a shareholder's cost as a result of the payment
of dividends or the distribution of realized net long-term capital gains, such
payment or distribution would be in part a return of the shareholder's
investment to the extent of such reduction below the shareholder's cost, but
nonetheless would be fully taxable. Therefore, an investor should consider the
tax implications of purchasing Fund shares immediately prior to a dividend or
distribution record date.
 
   
    The amount of dividends paid by the Fund which may qualify for the dividends
received deduction is limited to the aggregate amount of qualifying dividends
which the Fund derives from its portfolio investments which the Fund has held
for a minimum period, usually 46 days, within a 90-day period beginning 45 days
before the ex-dividend date of each qualifying dividend. Shareholders must meet
a similar holding period requirement with respect to their shares to claim the
dividends received deduction with respect to any distribution of qualifying
dividends. Any long-term capital gain distributions will also not be eligible
for the dividends received deduction. The ability to take the dividends received
deduction will also be limited to a Fund shareholder which incurs or continues
indebtedness which is directly attributable to its investment in the Fund.
    
 
   
    At the end of the year, shareholders will be sent full information on their
dividends and capital gains distributions for tax purposes, including
information as to the portion taxable as ordinary income, the portion taxable as
long-term capital gains and the portion eligible for the dividends received
deduction. Shareholders will also be notified of their proportionate share of
long-term capital gain distributions that are eligible for a reduced rate of tax
under the Taxpayer Relief Act of 1997. To avoid being subject to a 31% federal
backup withholding tax on taxable dividends, capital gains distributions and the
proceeds of redemptions and repurchases, shareholders' taxpayer identification
numbers must be furnished and certified as to their accuracy.
    
 
    Shareholders are urged to consult their attorneys or tax advisers regarding
specific questions as to federal, state or local taxes.
 
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
   
    As discussed in the Prospectus, from time to time the Fund may quote its
"yield" and/or its "total return" in advertisements and sales literature. These
figures are computed separately for Class A, Class B, Class C and Class D
shares. Yield is calculated for any 30-day period as follows: the amount of
interest and/or dividend income for each security in the Fund's portfolio is
determined in accordance with regulatory requirements; the total for the entire
portfolio constitutes the Fund's gross income for the period. Expenses accrued
during the period are subtracted to arrive at "net investment income". The
resulting amount is divided by the product of the net asset value per share on
the last day of the period multiplied by the average number of Fund shares
outstanding during the period that were entitled to dividends. This amount is
added to 1 and raised to the sixth power. 1 is then subtracted from the result
and the difference is multiplied by 2 to arrive at the annualized yield. The
yield for the 30-day period ended December 31, 1997, calculated pursuant to the
formula described above, were 3.51%, 2.96 %, 2.97% and 3.97% for Class A, Class
B, Class C and Class D, respectively.
    
 
    The Fund's "average annual total return" represents an annualization of the
Fund's total return over a particular period and is computed by finding the
annual percentage rate which will result in the ending redeemable value of a
hypothetical $1,000 investment made at the beginning of a one, five or ten year
period, or for the period from the date of commencement of the Fund's
operations, if shorter than any of the foregoing. The ending redeemable value is
reduced by any CDSC at the end of the one, five or ten year or other period. For
the purpose of this calculation, it is assumed that all dividends and
distributions are reinvested. The formula for computing the average annual total
return involves a percentage obtained by dividing the ending redeemable value by
the amount of the initial investment, taking a root of
 
                                       46
<PAGE>
   
the quotient (where the root is equivalent to the number of years in the period)
and subtracting 1 from the result. The average annual total return of Class B
for the year ended December 31, 1997, for the five years ended December 31, 1997
and since inception were 20.79%, 11.24% and 11.97%, respectively.
    
 
   
    For periods of less than one year, the Fund quotes its total return on a
non-annualized basis. Accordingly, the Fund may compute its aggregate total
return for each of Class A, Class C and Class D for specified periods by
determining the aggregate percentage rate which will result in the ending value
of a hypothetical $1,000 investment made at the beginning of the period. For the
purpose of this calculation, it is assumed that all dividends and distributions
are reinvested. The formula for computing aggregate total return involves a
percentage obtained by dividing the ending value by the initial $1,000
investment and subtracting 1 from the result. The ending redeemable value is
reduced by any CDSC at the end of the period. Based on the foregoing
calculations, the total returns for the period July 28, 1997 through December
31, 1997 were 11.86%, 16.67% and 18.13% for Class A, Class C and Class D,
respectively.
    
 
   
    In addition to the foregoing, the Fund may advertise its total return for
each Class over different periods of time by means of aggregate, average,
year-by-year or other types of total return figures. Such calculations may or
may not reflect the imposition of the maximum front-end sales charge for Class A
or the deduction of the CDSC for each of Class B and Class C which, if
reflected, would reduce the performance quoted. For example, the average annual
total return of the Fund may be calculated in the manner described above, but
without deduction for any applicable sales charge. Based on this calculation,
the average annual total return of Class B for the year ended December 31, 1997,
for the five years ended December 31, 1997 and since inception were 25.79%,
11.50% and 11.97%, respectively. These returns are for Class B only; there were
no other Classes of shares outstanding on such date.
    
 
   
    In addition, the Fund may compute its aggregate total return for each Class
for specified periods by determining the aggregate percentage rate which will
result in the ending value of a hypothetical $1,000 investment made at the
beginning of the period. For the purpose of this calculation, it is assumed that
all dividends and distributions are reinvested. The formula for computing
aggregate total return involves a percentage obtained by dividing the ending
value (without the reduction for any sales charge) by the initial $1,000
investment and subtracting 1 from the result. Based on the foregoing
calculation, the total return of Class B for the year ended December 31, 1997,
for the five years ended December 31, 1997 and since inception were 25.79%,
72.37% and 198.63%, respectively. Based on the foregoing calculations, the total
returns for Class A, Class C and Class D for the period July 28 through December
31, 1997 were 18.06%, 17.67% and 18.13%, respectively.
    
 
   
    The Fund may also advertise the growth of hypothetical investments of
$10,000, $50,000 and $100,000 in each Class of shares of the Fund by adding 1 to
the Fund's aggregate total return to date (expressed as a decimal and without
taking into account the effect of any applicable CDSC) and multiplying by
$9,475, $48,000 and $97,000 in the case of Class A (investments of $10,000,
$50,000 and $100,000 adjusted for the initial sales charge) or by $10,000,
$50,000 and $100,000 in the case of each of Class B, Class C and Class D, as the
case may be. Investments of $10,000, $50,000 and $100,000 in each Class at
inception of the Class would have grown to the following amounts at December 31,
1997:
    
 
   
<TABLE>
<CAPTION>
                                                                        INVESTMENT AT INCEPTION OF:
                                                         INCEPTION   ---------------------------------
CLASS                                                      DATE:      $10,000     $50,000    $100,000
- ------------------------------------------------------  -----------  ---------   ---------   ---------
<S>                                                     <C>          <C>         <C>         <C>
Class A...............................................     7/28/97   $  11,186   $  56,669   $ 114,518
Class B...............................................     4/29/88      29,863     149,315     298,650
Class C...............................................     7/28/97      11,767      58,835     117,670
Class D...............................................     7/28/97      11,813      59,065     118,130
</TABLE>
    
 
    The Fund from time to time may also advertise its performance relative to
certain performance rankings and indexes complied by independent organizations.
 
                                       47
<PAGE>
DESCRIPTION OF SHARES
- --------------------------------------------------------------------------------
 
   
    The shareholders of the Fund are entitled to a full vote for each full share
held. All of the Trustees have been elected by the shareholders of the Fund,
most recently at a Special Meeting of Shareholders held on May 21, 1997. The
Trustees themselves have the power to alter the number and the terms of office
of the Trustees, and they may at any time lengthen or shorten their own terms or
make their terms of unlimited duration and appoint their own successors,
provided that always at least a majority of the Trustees has been elected by the
shareholders of the Fund. Under certain circumstances, the Trustees may be
removed by action of the Trustees. The shareholders also have the right, under
certain circumstances, to remove the Trustees. The voting rights of shareholders
are not cumulative, so that holders of more than 50 percent of the shares voting
can, if they choose, elect all Trustees being selected, while the holders of the
remaining shares would be unable to elect any Trustees.
    
 
    The Declaration of Trust permits the Trustees to authorize the creation of
additional series of shares (the proceeds of which would be invested in
separate, independently managed portfolios) and additional classes of shares
within any series (which would be used to distinguish among the rights of
different categories of shareholders, as might be required by future regulations
or other unforeseen circumstances). The Trustees have not presently authorized
any such additional series or classes of shares other than as set forth in the
Prospectus and in this Statement of Additional Information.
 
    The Declaration of Trust provides that no Trustee, officer, employee or
agent of the Fund is liable to the Fund or to a shareholder, nor is any Trustee,
officer, employee or agent liable to any third persons in connection with the
affairs of the Fund, except as such liability may arise from his own bad faith,
willful misfeasance, gross negligence, or reckless disregard of his duties. It
also provides that all third persons shall look solely to the Fund's property
for satisfaction of claims arising in connection with the affairs of the Fund.
With the exceptions stated, the Declaration of Trust provides that a Trustee,
officer, employee or agent is entitled to be indemnified against all liabilities
in connection with the affairs of the Fund.
 
    The Fund is authorized to issue an unlimited number of shares of beneficial
interest.
 
    The Fund shall be of unlimited duration subject to the provisions in the
Declaration of Trust concerning termination by action of the shareholders or the
Trustees.
 
CUSTODIAN AND TRANSFER AGENT
- --------------------------------------------------------------------------------
 
    The Bank of New York, 90 Washington Street, New York, New York 10286 is the
Custodian of the Fund's assets. Any of the Fund's cash balances with the
Custodian in excess of $100,000 are unprotected by federal deposit insurance.
Such balances may, at times, be substantial.
 
   
    Dean Witter Trust FSB, Harborside Financial Center, Plaza Two, Jersey City,
New Jersey 07311 is the Transfer Agent of the Fund's shares and Dividend
Disbursing Agent for payment of dividends and distributions on Fund shares and
Agent for shareholders under various investment plans described herein. Dean
Witter Trust FSB is an affiliate of Dean Witter InterCapital Inc., the Fund's
Investment Manager and Dean Witter Distributors Inc., the Fund's Distributor. As
Transfer Agent and Dividend Disbursing Agent, Dean Witter Trust FSB's
responsibilities include maintaining shareholder accounts, disbursing cash
dividends and reinvesting dividends, processing account registration changes,
handling purchase and redemption transactions, mailing prospectuses and reports,
mailing and tabulating proxies, processing share certificate transactions, and
maintaining shareholder records and lists. For these services Dean Witter Trust
FSB receives a per shareholder account fee from the Fund.
    
 
INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
 
    Price Waterhouse LLP serves as the independent accountants of the Fund. The
independent accountants are responsible for auditing the annual financial
statements of the Fund.
 
                                       48
<PAGE>
REPORTS TO SHAREHOLDERS
- --------------------------------------------------------------------------------
 
    The Fund will send to shareholders, at least semi-annually, reports showing
the Fund's portfolio and other information. An annual report containing
financial statements audited by independent accountants will be sent to
shareholders each year.
 
    The Fund's fiscal year ends on December 31. The financial statements of the
Fund must be audited at least once a year by independent accountants whose
selection is made annually by the Fund's Board of Trustees.
 
LEGAL COUNSEL
- --------------------------------------------------------------------------------
 
    Barry Fink, Esq., who is an officer and the General Counsel of the
Investment Manager, is an officer and the General Counsel of the Fund.
 
EXPERTS
- --------------------------------------------------------------------------------
 
   
    The financial statements of the Fund for the year ended December 31, 1997
included in this Statement of Additional Information and incorporated by
reference in the Prospectus have been so included and incorporated in reliance
on the report of Price Waterhouse LLP, independent accountants, given on the
authority of said firm as experts in auditing and accounting.
    
 
REGISTRATION STATEMENT
- --------------------------------------------------------------------------------
 
    This Statement of Additional Information and the Prospectus do not contain
all of the information set forth in the Registration Statement the Fund has
filed with the Securities and Exchange Commission. The complete Registration
Statement may be obtained from the Securities and Exchange Commission upon
payment of the fee prescribed by the rules and regulations of the Commission.
 
                                       49
<PAGE>
DEAN WITTER UTILITIES FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1997
 
<TABLE>
<CAPTION>
NUMBER OF
  SHARES                                                                                              VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>         <S>                                                                                   <C>
            COMMON STOCKS (89.5%)
            NATURAL GAS (10.5%)
   660,000  AGL Resources, Inc..................................................................  $   13,488,750
   330,000  Burlington Resources, Inc...........................................................      14,788,125
   400,000  Coastal Corp........................................................................      24,775,000
   340,000  Consolidated Natural Gas Co.........................................................      20,570,000
   529,821  EEX Corp.*..........................................................................       4,801,503
   530,335  El Paso Natural Gas Co..............................................................      35,267,277
 1,184,137  Enron Corp..........................................................................      49,215,694
   230,000  New Jersey Resources Corp...........................................................       9,214,375
    70,000  Royal Dutch Petroleum Co. (ADR) (Netherlands).......................................       3,793,125
   280,000  Sonat, Inc..........................................................................      12,810,000
   285,000  Washington Gas Light Co.............................................................       8,817,187
 2,120,000  Williams Companies, Inc.............................................................      60,155,000
                                                                                                  --------------
                                                                                                     257,696,036
                                                                                                  --------------
            TELECOMMUNICATIONS (29.7%)
   200,000  360 DEG. Communications Co.*........................................................       4,037,500
   620,000  Airtouch Communications, Inc.*......................................................      25,768,750
   900,000  ALLTEL Corp.........................................................................      36,956,250
   680,000  Ameritech Corp......................................................................      54,740,000
   360,000  AT&T Corp...........................................................................      22,050,000
   985,000  BCE, Inc. (Canada)..................................................................      32,812,812
   606,000  Bell Atlantic Corp..................................................................      55,146,000
   825,000  BellSouth Corp......................................................................      46,457,812
   145,000  British Telecommunications PLC (ADR) (United Kingdom)...............................      11,645,312
   205,000  Cable & Wireless PLC (ADR) (United Kingdom).........................................       5,573,437
   545,000  Century Telephone Enterprises, Inc..................................................      27,147,812
   283,750  Compania de Telecommunicaciones de Chile S.A. (ADR) (Chile).........................       8,477,031
   300,000  Ericsson (L.M.) Telephone Co. (Class B) (ADR) (Sweden)..............................      11,193,750
   152,500  France Telecom S.A. (ADR) (France)*.................................................       5,490,000
   610,000  Frontier Corp.......................................................................      14,678,125
   820,000  GTE Corp............................................................................      42,845,000
   675,000  Hong Kong Telecommunications, Ltd. (ADR) (Hong Kong)................................      13,921,875
   165,000  LCI International, Inc.*............................................................       5,073,750
   149,405  Lucent Technologies Inc.............................................................      11,933,724
   725,000  MCI Communications Corp.............................................................      31,039,062
   170,000  Philippine Long Distance Telephone Co. (ADR) (Philippines)..........................       3,825,000
   894,806  SBC Communications, Inc.............................................................      65,544,539
   675,000  Sprint Corp.........................................................................      39,571,875
   470,000  Telecommunications Corp. New Zealand, Ltd. (ADR) (New Zealand)......................      18,212,500
   275,000  Telefonica de Argentina S.A. (ADR) (Argentina)......................................      10,243,750
   365,000  Telefonica Espana S.A. (ADR) (Spain)................................................      33,237,812
   335,000  Telefonos de Mexico S.A. de C.V. (Series L) (ADR) (Mexico)..........................      18,780,937
   124,750  Telstra Corp., Ltd. (ADR) (Australia)*..............................................       5,208,312
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       50
<PAGE>
DEAN WITTER UTILITIES FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1997, CONTINUED
 
<TABLE>
<CAPTION>
NUMBER OF
  SHARES                                                                                              VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>         <S>                                                                                   <C>
   660,000  U.S. West Communications Group, Inc.................................................  $   29,782,500
   430,000  U.S. West Media Group, Inc.*........................................................      12,416,250
   175,000  Vodafone Group PLC (ADR) (United Kingdom)...........................................      12,687,500
   367,000  WorldCom, Inc.*.....................................................................      11,101,750
                                                                                                  --------------
                                                                                                     727,600,727
                                                                                                  --------------
            UTILITIES - ELECTRIC (49.3%)
 1,040,000  Allegheny Energy, Inc...............................................................      33,800,000
   670,000  American Electric Power Co..........................................................      34,588,750
   785,000  Baltimore Gas & Electric Co.........................................................      26,739,063
   550,000  Boston Edison Co....................................................................      20,831,250
   250,000  Carolina Power & Light Co...........................................................      10,609,375
   565,000  Central & South West Corp...........................................................      15,290,313
 1,090,470  CINergy Corp........................................................................      41,778,632
   615,000  CMS Energy Corp.....................................................................      27,098,438
   695,000  Consolidated Edison Co. of New York, Inc............................................      28,495,000
   890,000  Dominion Resources, Inc.............................................................      37,880,625
 1,005,000  DPL, Inc............................................................................      28,893,750
   530,000  DQE, Inc............................................................................      18,616,250
   750,000  DTE Energy Co.......................................................................      26,015,625
 1,021,862  Duke Power Co.......................................................................      56,585,608
 1,285,000  Edison International................................................................      34,935,938
 1,105,000  Endesa S.A. (ADR) (Spain)...........................................................      20,097,188
   935,000  Enova Corp..........................................................................      25,303,438
   595,000  Entergy Corp........................................................................      17,812,813
   730,000  FirstEnergy Corp.*..................................................................      21,170,000
   550,000  Florida Progress Corp...............................................................      21,587,500
   725,000  FPL Group, Inc......................................................................      42,910,938
 1,010,000  GPU, Inc............................................................................      42,546,250
 1,200,000  Houston Industries, Inc.............................................................      32,025,000
   710,000  Illinova Corp.......................................................................      19,125,625
   695,000  Kansas City Power & Light Co........................................................      20,545,938
   505,000  Long Island Lighting Co.............................................................      15,213,125
 1,052,500  New Century Energies, Inc...........................................................      50,454,219
   720,000  New England Electric System.........................................................      30,780,000
   515,000  New York State Electric & Gas Corp..................................................      18,282,500
   790,000  NIPSCO Industries, Inc..............................................................      39,055,625
   335,000  Northern States Power Co............................................................      19,513,750
   905,000  PacifiCorp..........................................................................      24,717,813
   615,000  Peco Energy Co......................................................................      14,913,750
   335,000  PG & E Corp.........................................................................      10,196,563
   870,000  Pinnacle West Capital Corp..........................................................      36,866,250
   445,000  Potomac Electric Power Co...........................................................      11,486,563
   655,000  PP&L Resources, Inc.................................................................      15,679,063
   710,000  Public Service Enterprise Group, Inc................................................      22,498,125
    95,000  Puget Sound Power & Light Co........................................................       2,867,813
   350,000  Rochester Gas & Electric Corp.......................................................      11,900,000
   800,000  SCANA Corp..........................................................................      23,950,000
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       51
<PAGE>
DEAN WITTER UTILITIES FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1997, CONTINUED
 
<TABLE>
<CAPTION>
NUMBER OF
  SHARES                                                                                              VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>         <S>                                                                                   <C>
 1,350,000  Southern Co.........................................................................  $   34,931,250
   445,000  Teco Energy, Inc....................................................................      12,515,625
   826,000  Texas Utilities Co..................................................................      34,330,625
   855,000  Union Electric Co...................................................................      36,978,750
   490,000  Utilicorp United, Inc...............................................................      19,018,125
   670,000  Washington Water Power Co...........................................................      16,289,375
                                                                                                  --------------
                                                                                                   1,207,722,216
                                                                                                  --------------
 
            TOTAL COMMON STOCKS
            (IDENTIFIED COST $1,299,313,973)....................................................   2,193,018,979
                                                                                                  --------------
</TABLE>
 
<TABLE>
<CAPTION>
PRINCIPAL
AMOUNT IN                                                                                   COUPON   MATURITY
THOUSANDS                                                                                    RATE      DATE
- ----------                                                                                  ------   --------
<C>         <S>                                                                             <C>      <C>       <C>
            CORPORATE BONDS (9.2%)
            NATURAL GAS (1.8%)
$    5,000  ANR Pipeline Co...............................................................   9.625%  11/01/21     6,527,000
    10,000  Coastal Corp..................................................................   9.625   05/15/12    12,621,000
     5,000  Colorado Interstate Gas Co....................................................  10.00    06/15/05     6,031,900
     5,000  Northwest Pipeline Corp.......................................................  10.65    11/15/18     5,303,900
     5,000  Transco Energy Co.............................................................   9.875   06/15/20     6,773,850
     5,000  Williams Companies, Inc.......................................................   9.375   11/15/21     6,376,850
                                                                                                               ------------
                                                                                                                 43,634,500
                                                                                                               ------------
            TELECOMMUNICATIONS (1.4%)
     6,000  GTE Corp......................................................................   7.90    02/01/27     6,299,580
     5,000  Southwestern Bell Telephone Co................................................   7.375   07/15/27     5,209,550
     5,000  Sprint Corp...................................................................   9.25    04/15/22     6,390,900
     5,000  Telephone & Data Systems, Inc.................................................  10.00    01/15/21     5,968,700
     5,000  Telephone & Data Systems, Inc.................................................   9.58    11/19/21     5,441,450
     5,000  U.S. West Communications Group, Inc...........................................   7.125   11/15/43     5,046,300
                                                                                                               ------------
                                                                                                                 34,356,480
                                                                                                               ------------
            UTILITIES - ELECTRIC (6.0%)
     1,499  AEP Generating Co.............................................................   9.81    12/07/22     1,943,512
     5,000  Arizona Public Service Co.....................................................   7.25    08/01/23     5,013,600
     3,000  CE Elec UK (United Kingdom)...................................................   6.995   12/30/07     3,047,280
     6,000  Chugach Electric Co...........................................................   9.14    03/15/22     6,899,760
     5,000  Cincinnati Gas & Electric Co..................................................   7.20    10/01/23     5,042,650
     5,000  Commonwealth Edison Co........................................................   8.375   02/15/23     5,403,650
     5,000  Consumers Energy Co...........................................................   7.375   09/15/23     4,987,250
    10,783  DQU II Funding Corp...........................................................   8.70    06/01/16    12,100,683
     5,000  Gulf States Utilities Co......................................................   8.94    01/01/22     5,454,800
     7,000  Indiantown Cogeneration LP....................................................   9.26    12/15/10     7,939,680
     3,000  Long Island Lighting Co.......................................................   8.90    07/15/19     3,168,750
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       52
<PAGE>
DEAN WITTER UTILITIES FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1997, CONTINUED
 
<TABLE>
<CAPTION>
PRINCIPAL
AMOUNT IN                                                                                   COUPON   MATURITY
THOUSANDS                                                                                    RATE      DATE       VALUE
- ---------------------------------------------------------------------------------------------------------------------------
<C>         <S>                                                                             <C>      <C>       <C>
$    5,100  Long Island Lighting Co.......................................................   8.20%   03/15/23  $  5,424,768
     5,250  National Rural Utilities Cooperative Finance Corp.............................   9.00    09/01/21     5,776,207
     5,000  New York State Electric & Gas Corp............................................   8.875   11/01/21     5,412,200
     5,270  Niagara Mohawk Power Corp.....................................................   8.77    01/01/18     5,899,765
     5,000  Niagara Mohawk Power Corp.....................................................   9.50    03/01/21     5,333,750
     5,000  Pacificorp....................................................................   6.71    01/15/26     4,915,650
    10,250  Public Service Company of Colorado............................................   8.75    03/01/22    11,328,812
     5,000  Public Service Company of Oklahoma............................................   7.375   04/01/23     5,204,150
     5,000  Public Service Electric & Gas Co..............................................   7.00    09/01/24     4,942,300
     5,000  Selkirk Cogen Funding Corp....................................................   8.98    06/26/12     5,682,450
     4,750  Southwest Gas Corp............................................................   8.00    08/01/26     5,413,623
       221  Systems Energy Resources, Inc.................................................  11.375   09/01/16       235,840
     5,000  Texas Utilities Electric Co...................................................   8.875   02/01/22     5,527,050
     5,000  Texas Utilities Electric Co...................................................   7.375   10/01/25     5,087,950
     5,000  Virginia Electric Power Co....................................................   8.625   10/01/24     5,627,900
     5,000  Wisconsin Power & Light Co....................................................   8.60    03/15/27     5,630,100
                                                                                                               ------------
                                                                                                                148,444,130
                                                                                                               ------------
 
            TOTAL CORPORATE BONDS
            (IDENTIFIED COST $202,992,657)...................................................................   226,435,110
                                                                                                               ------------
 
            U.S. GOVERNMENT AGENCY OBLIGATIONS (0.3%)
     7,000  Fannie Mae....................................................................   0.00    10/09/19     1,825,040
     5,000  Tennessee Valley Authority....................................................   6.875   12/15/43     5,033,950
                                                                                                               ------------
 
            TOTAL U.S. GOVERNMENT AGENCY OBLIGATIONS
            (IDENTIFIED COST $6,354,985).....................................................................     6,858,990
                                                                                                               ------------
</TABLE>
 
<TABLE>
<CAPTION>
<C>         <S>                                                                                   <C>
            SHORT-TERM INVESTMENTS (0.9%)
            U.S. GOVERNMENT AGENCY (a) (0.6%)
    15,100  Federal Home Loan Mortgage Corp.
              (AMORTIZED COST $15,097,483)......................................................      15,097,483
                                                                                                  --------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       53
<PAGE>
DEAN WITTER UTILITIES FUND
PORTFOLIO OF INVESTMENTS DECEMBER 31, 1997, CONTINUED
 
<TABLE>
<CAPTION>
PRINCIPAL
AMOUNT IN
THOUSANDS                                                                                             VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>         <S>                                                                                   <C>
            REPURCHASE AGREEMENT (0.3%)
$    7,861  The Bank of New York 3.875% due 01/02/98 (dated 12/31/97; proceeds $7,862,511) (b)
              (IDENTIFIED COST $7,860,819)......................................................  $    7,860,819
                                                                                                  --------------
 
            TOTAL SHORT-TERM INVESTMENTS
            (IDENTIFIED COST $22,958,302).......................................................      22,958,302
                                                                                                  --------------
</TABLE>
 
<TABLE>
<S>                                                                                       <C>     <C>
TOTAL INVESTMENTS
(IDENTIFIED COST $1,531,619,917) (C)....................................................   99.9 %   2,449,271,381
 
CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES..........................................    0.1         3,091,371
                                                                                          ------  ---------------
 
NET ASSETS..............................................................................  100.0 % $ 2,452,362,752
                                                                                          ------  ---------------
                                                                                          ------  ---------------
</TABLE>
 
- ---------------------
 
ADR  American Depository Receipt.
 *   Non-income producing security.
(a)  Security was purchased on a discount basis. The interest rate shown has
     been adjusted to reflect a money market equivalent yield.
(b)  Collateralized by $4,376,521 U.S. Treasury Bill 5.915% due 06/04/98 valued
     at $4,279,189 and $3,558,730 U.S. Treasury Note 6.125% due 08/15/07 valued
     at $3,738,847.
(c)  The aggregate cost for federal income tax purposes approximates identified
     cost. The aggregate gross unrealized appreciation is $920,163,262 and the
     aggregate gross unrealized depreciation is $2,511,798, resulting in net
     unrealized appreciation of $917,651,464.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       54
<PAGE>
DEAN WITTER UTILITIES FUND
FINANCIAL STATEMENTS
 
STATEMENT OF ASSETS AND LIABILITIES
DECEMBER 31, 1997
 
<TABLE>
<S>                                                                                           <C>
ASSETS:
Investments in securities, at value
  (identified cost $1,531,619,917)..........................................................  $2,449,271,381
Cash........................................................................................          15,466
Receivable for:
    Dividends...............................................................................       6,521,142
    Investments sold........................................................................       4,988,612
    Interest................................................................................       4,626,332
    Shares of beneficial interest sold......................................................       2,084,068
    Foreign withholding taxes reclaimed.....................................................         165,509
Prepaid expenses and other assets...........................................................          93,274
                                                                                              --------------
     TOTAL ASSETS...........................................................................   2,467,765,784
                                                                                              --------------
LIABILITIES:
Payable for:
    Dividends and distributions to shareholders.............................................       7,763,903
    Shares of beneficial interest repurchased...............................................       3,813,321
    Plan of distribution fee................................................................       2,140,121
    Investment management fee...............................................................       1,180,366
    Investments purchased...................................................................         296,468
Accrued expenses and other payables.........................................................         208,853
                                                                                              --------------
     TOTAL LIABILITIES......................................................................      15,403,032
                                                                                              --------------
     NET ASSETS.............................................................................  $2,452,362,752
                                                                                              --------------
                                                                                              --------------
COMPOSITION OF NET ASSETS:
Paid-in-capital.............................................................................  $1,512,693,562
Net unrealized appreciation.................................................................     917,651,464
Accumulated undistributed net investment income.............................................       2,160,653
Accumulated undistributed net realized gain.................................................      19,857,073
                                                                                              --------------
     NET ASSETS.............................................................................  $2,452,362,752
                                                                                              --------------
                                                                                              --------------
CLASS A SHARES:
Net Assets..................................................................................      $3,581,103
Shares Outstanding (UNLIMITED AUTHORIZED, $.01 PAR VALUE)...................................         210,576
     NET ASSET VALUE PER SHARE..............................................................          $17.01
                                                                                              --------------
                                                                                              --------------
 
                                                                                                      $17.95
     MAXIMUM OFFERING PRICE PER SHARE,
       (NET ASSET VALUE PLUS 5.54% OF NET ASSET VALUE)......................................
CLASS B SHARES:
Net Assets..................................................................................  $2,430,270,457
Shares Outstanding (UNLIMITED AUTHORIZED, $.01 PAR VALUE)...................................     142,638,009
     NET ASSET VALUE PER SHARE..............................................................          $17.04
                                                                                              --------------
                                                                                              --------------
CLASS C SHARES:
Net Assets..................................................................................      $1,405,078
Shares Outstanding (UNLIMITED AUTHORIZED, $.01 PAR VALUE)...................................          82,379
     NET ASSET VALUE PER SHARE..............................................................          $17.06
                                                                                              --------------
                                                                                              --------------
CLASS D SHARES:
Net Assets..................................................................................     $17,106,114
Shares Outstanding (UNLIMITED AUTHORIZED, $.01 PAR VALUE)...................................       1,006,969
     NET ASSET VALUE PER SHARE..............................................................          $16.99
                                                                                              --------------
                                                                                              --------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       55
<PAGE>
DEAN WITTER UTILITIES FUND
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF OPERATIONS
FOR THE YEAR ENDED DECEMBER 31, 1997*
 
<TABLE>
<S>                                                                                             <C>
NET INVESTMENT INCOME:
 
INCOME
Dividends (net of $1,166,042 foreign withholding tax).........................................  $ 91,250,894
Interest......................................................................................    23,462,840
                                                                                                ------------
 
     TOTAL INCOME.............................................................................   114,713,734
                                                                                                ------------
 
EXPENSES
Plan of distribution fee (Class A shares).....................................................         5,899
Plan of distribution fee (Class B shares).....................................................    23,748,377
Plan of distribution fee (Class C shares).....................................................         1,568
Investment management fee.....................................................................    13,037,906
Transfer agent fees and expenses..............................................................     2,354,616
Shareholder reports and notices...............................................................       196,108
Custodian fees................................................................................       125,837
Professional fees.............................................................................        77,744
Registration fees.............................................................................        30,136
Trustees' fees and expenses...................................................................        16,683
Other.........................................................................................        27,078
                                                                                                ------------
 
     TOTAL EXPENSES...........................................................................    39,621,952
                                                                                                ------------
 
     NET INVESTMENT INCOME....................................................................    75,091,782
                                                                                                ------------
 
NET REALIZED AND UNREALIZED GAIN:
Net realized gain.............................................................................   199,367,128
Net change in unrealized appreciation.........................................................   261,162,998
                                                                                                ------------
 
     NET GAIN.................................................................................   460,530,126
                                                                                                ------------
 
NET INCREASE..................................................................................  $535,621,908
                                                                                                ------------
                                                                                                ------------
</TABLE>
 
- ---------------------
 
 *   Class A, Class C and Class D shares were issued July 28, 1997.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       56
<PAGE>
DEAN WITTER UTILITIES FUND
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF CHANGES IN NET ASSETS
 
<TABLE>
<CAPTION>
                                                                          FOR THE YEAR       FOR THE YEAR
                                                                             ENDED               ENDED
                                                                       DECEMBER 31, 1997*  DECEMBER 31, 1996
- ------------------------------------------------------------------------------------------------------------
<S>                                                                    <C>                 <C>
 
INCREASE (DECREASE) IN NET ASSETS:
 
OPERATIONS:
Net investment income................................................  $      75,091,782   $     107,181,452
Net realized gain....................................................        199,367,128          38,088,040
Net change in unrealized appreciation................................        261,162,998         (21,800,001)
                                                                       ------------------  -----------------
 
     NET INCREASE....................................................        535,621,908         123,469,491
                                                                       ------------------  -----------------
 
DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS FROM:
Net investment income
    Class A shares...................................................           (150,922 )        --
    Class B shares...................................................        (73,193,086 )      (112,326,026)
    Class C shares...................................................             (6,635 )        --
    Class D shares...................................................           (344,827 )        --
 
Net realized gain
    Class A shares...................................................           (252,328 )        --
    Class B shares...................................................       (194,864,905 )       (13,000,035)
    Class C shares...................................................            (57,955 )        --
    Class D shares...................................................         (1,198,655 )        --
                                                                       ------------------  -----------------
 
     TOTAL DIVIDENDS AND DISTRIBUTIONS...............................       (270,069,313 )      (125,326,061)
                                                                       ------------------  -----------------
Net decrease from transactions in shares of beneficial interest......       (490,134,824 )      (642,069,697)
                                                                       ------------------  -----------------
 
     NET DECREASE....................................................       (224,582,229 )      (643,926,267)
 
NET ASSETS:
Beginning of period..................................................      2,676,944,981       3,320,871,248
                                                                       ------------------  -----------------
 
     END OF PERIOD
    (INCLUDING UNDISTRIBUTED NET INVESTMENT INCOME OF $2,160,653 AND
    $764,341, RESPECTIVELY)..........................................  $   2,452,362,752   $   2,676,944,981
                                                                       ------------------  -----------------
                                                                       ------------------  -----------------
</TABLE>
 
- ---------------------
 
 *   Class A, Class C and Class D shares were issued July 28, 1997.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       57
<PAGE>
DEAN WITTER UTILITIES FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997
 
1. ORGANIZATION AND ACCOUNTING POLICIES
 
Dean Witter Utilities Fund (the "Fund") is registered under the Investment
Company Act of 1940, as amended (the "Act"), as a diversified, open-end
management investment company. The Fund's investment objective is to provide
current income and long-term growth of income and capital. The Fund seeks to
achieve its objective by investing primarily in equity and fixed income
securities of companies engaged in the public utilities industry. The Fund was
organized as a Massachusetts business trust on December 8, 1987 and commenced
operations on April 29, 1988. On July 28, 1997, the Fund commenced offering
three additional classes of shares, with the then current shares, other than
shares held by certain employee benefit plans established by Dean Witter
Reynolds Inc. and its affiliate, SPS Transaction Services, Inc., designated as
Class B shares. Shares held by those employee benefit plans prior to July 28,
1997 have been designated Class D shares.
 
The Fund offers Class A shares, Class B shares, Class C shares and Class D
shares. The four classes are substantially the same except that most Class A
shares are subject to a sales charge imposed at the time of purchase, some Class
A shares, and most Class B shares and Class C shares are subject to a contingent
deferred sales charge imposed on shares redeemed within one year, six years and
one year, respectively. Class D shares are not subject to a sales charge.
Additionally, Class A shares, Class B shares and Class C shares incur
distribution expenses.
 
The preparation of financial statements in accordance with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts and disclosures. Actual results could differ from
those estimates.
 
The following is a summary of significant accounting policies:
 
A. VALUATION OF INVESTMENTS --  (1) an equity security listed or traded on the
New York, American or other domestic or foreign stock exchange is valued at its
latest sale price on that exchange prior to the time when assets are valued; if
there were no sales that day, the security is valued at the latest bid price (in
cases where securities are traded on more than one exchange; the securities are
valued on the exchange designated as the primary market pursuant to the
procedures adopted by the Trustees); (2) all other portfolio securities for
which over-the-counter market quotations are readily available are valued at the
latest available bid price prior to the time of valuation; (3) when market
quotations are not readily available, including circumstances under which it is
determined by Dean Witter InterCapital Inc. (the "Investment Manager") that sale
or bid prices are not reflective of a security's market value, portfolio
securities are valued at their fair value as determined in good faith under
procedures established by and under the general supervision of the Trustees
(valuation of debt
 
                                       58
<PAGE>
DEAN WITTER UTILITIES FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997, CONTINUED
 
securities for which market quotations are not readily available may be based
upon current market prices of securities which are comparable in coupon, rating
and maturity or an appropriate matrix utilizing similar factors); (4) certain of
the Fund's portfolio securities may be valued by an outside pricing service
approved by the Trustees. The pricing service may utilize a matrix system
incorporating security quality, maturity and coupon as the evaluation model
parameters, and/or research and evaluations by its staff, including review of
broker-dealer market price quotations, if available, in determining what it
believes is the fair valuation of the portfolio securities valued by such
pricing service; and (5) short-term debt securities having a maturity date of
more than sixty days at time of purchase are valued on a mark-to-market basis
until sixty days prior to maturity and thereafter at amortized cost based on
their value on the 61st day. Short-term debt securities having a maturity date
of sixty days or less at the time of purchase are valued at amortized cost.
 
B. ACCOUNTING FOR INVESTMENTS -- Security transactions are accounted for on the
trade date (date the order to buy or sell is executed). Realized gains and
losses on security transactions are determined by the identified cost method.
Discounts are amortized over the life of the respective securities. Dividend
income and other distributions are recorded on the ex-dividend date. Interest
income is accrued daily.
 
C. MULTIPLE CLASS ALLOCATIONS -- Investment income, expenses (other than
distribution fees), and realized and unrealized gains and losses are allocated
to each class of shares based upon the relative net asset value on the date such
items are recognized. Distribution fees are charged directly to the respective
class.
 
D. FEDERAL INCOME TAX STATUS -- It is the Fund's policy to comply with the
requirements of the Internal Revenue Code applicable to regulated investment
companies and to distribute all of its taxable income to its shareholders.
Accordingly, no federal income tax provision is required.
 
E. DIVIDENDS AND DISTRIBUTIONS TO SHAREHOLDERS -- The Fund records dividends and
distributions to its shareholders on the record date. The amount of dividends
and distributions from net investment income and net realized capital gains are
determined in accordance with federal income tax regulations which may differ
from generally accepted accounting principles. These "book/tax" differences are
either considered temporary or permanent in nature. To the extent these
differences are permanent in nature, such amounts are reclassified within the
capital accounts based on their federal tax-basis treatment; temporary
differences do not require reclassification. Dividends and distributions which
exceed net investment income and net realized capital gains for financial
reporting purposes but not for tax purposes are reported as dividends in excess
of net investment
 
                                       59
<PAGE>
DEAN WITTER UTILITIES FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997, CONTINUED
 
income or distributions in excess of net realized capital gains. To the extent
they exceed net investment income and net realized capital gains for tax
purposes, they are reported as distributions of paid-in-capital.
 
2. INVESTMENT MANAGEMENT AGREEMENT
 
Pursuant to an Investment Management Agreement with the Investment Manager, the
Fund pays the Investment Manager a management fee, accrued daily and payable
monthly, by applying the annual rate of 0.65% to the portion of daily net assets
not exceeding $500 million; 0.55% to the portion of daily net assets exceeding
$500 million but not exceeding $1 billion; 0.525% to the portion of daily net
assets exceeding $1 billion but not exceeding $1.5 billion; 0.50% to the portion
of daily net assets exceeding $1.5 billion but not exceeding $2.5 billion;
0.475% to the portion of daily net assets exceeding $2.5 billion but not
exceeding $3.5 billion; 0.45% to the portion of daily net assets exceeding $3.5
billion but not exceeding $5 billion; and 0.425% to the portion of daily net
assets exceeding $5 billion.
 
Under the terms of the Agreement, in addition to managing the Fund's
investments, the Investment Manager maintains certain of the Fund's books and
records and furnishes, at its own expense, office space, facilities, equipment,
clerical, bookkeeping and certain legal services and pays the salaries of all
personnel, including officers of the Fund who are employees of the Investment
Manager. The Investment Manager also bears the cost of telephone services, heat,
light, power and other utilities provided to the Fund.
 
3. PLAN OF DISTRIBUTION
 
Shares of the Fund are distributed by Dean Witter Distributors Inc. (the
"Distributor"), an affiliate of the Investment Manager. The Fund has adopted a
Plan of Distribution (the "Plan") pursuant to Rule 12b-1 under the Act. The Plan
provides that the Fund will pay the Distributor a fee which is accrued daily and
paid monthly at the following annual rates: (i) Class A -- up to 0.25% of the
average daily net assets of Class A; (ii) Class B -- 1.0% of the lesser of: (a)
the average daily aggregate gross sales of the Class B shares since the
inception of the Fund (not including reinvestment of dividend or capital gain
distributions) less the average daily aggregate net asset value of the Class B
shares redeemed since the Fund's inception upon which a contingent deferred
sales charge has been imposed or waived; or (b) the average daily net assets of
Class B; and (iii) Class C -- up to 1.0% of the average daily net assets of
Class C. In the case of Class A shares, amounts paid under the Plan are paid to
the Distributor for services provided. In the case of Class B and Class C
shares, amounts paid under the Plan are paid to the Distributor for services
provided
 
                                       60
<PAGE>
DEAN WITTER UTILITIES FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997, CONTINUED
 
and the expenses borne by it and others in the distribution of the shares of
these Classes, including the payment of commissions for sales of these Classes
and incentive compensation to, and expenses of, the account executives of Dean
Witter Reynolds Inc. ("DWR"), an affiliate of the Investment Manager and
Distributor, and others who engage in or support distribution of the shares or
who service shareholder accounts, including overhead and telephone expenses;
printing and distribution of prospectuses and reports used in connection with
the offering of these shares to other than current shareholders; and
preparation, printing and distribution of sales literature and advertising
materials. In addition, the Distributor may utilize fees paid pursuant to the
Plan, in the case of Class B shares, to compensate DWR and other selected
broker-dealers for their opportunity costs in advancing such amounts, which
compensation would be in the form of a carrying charge on any unreimbursed
expenses.
 
In the case of Class B shares, provided that the Plan continues in effect, any
cumulative expenses incurred by the Distributor but not yet recovered may be
recovered through the payment of future distribution fees from the Fund pursuant
to the Plan and contingent deferred sales charges paid by investors upon
redemption of Class B shares. Although there is no legal obligation for the Fund
to pay expenses incurred in excess of payments made to the Distributor under the
Plan and the proceeds of contingent deferred sales charges paid by investors
upon redemption of shares, if for any reason the Plan is terminated, the
Trustees will consider at that time the manner in which to treat such expenses.
The Distributor has advised the Fund that such excess amounts, including
carrying charges, totaled $63,773,437 at December 31, 1997.
 
In the case of Class A shares and Class C shares, expenses incurred pursuant to
the Plan in any calendar year in excess of 0.25% or 1.0% of the average daily
net assets of Class A or Class C, respectively, will not be reimbursed by the
Fund through payments in any subsequent year, except that expenses representing
a gross sales credit to account executives may be reimbursed in the subsequent
calendar year. For the period ended December 31, 1997, the distribution fee was
accrued for Class A shares and Class C shares at the annual rate of 0.25% and
1.0%, respectively.
 
The Distributor has informed the Fund that for the year ended December 31, 1997,
it received contingent deferred sales charges from certain redemptions of the
Fund's Class B shares of $3,924,730 and received $16,377 in front-end sales
charges from sales of the Fund's Class A shares. The respective shareholders pay
such charges which are not an expense of the Fund.
 
                                       61
<PAGE>
DEAN WITTER UTILITIES FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997, CONTINUED
 
4. SECURITY TRANSACTIONS AND TRANSACTIONS WITH AFFILIATES
 
The cost of purchases and proceeds from sales of portfolio securities, excluding
short-term investments, for the year ended December 31, 1997 aggregated
$140,034,165 and $823,505,834, respectively. Included in the aforementioned are
purchases and sales of U.S. Government securities of $10,066,950 and $3,795,969,
respectively. Included in the aforementioned are sales of Citizens Utilities
Co., an affiliate of the Fund by virtue of a common Trustee, in the amount of
$4,775,800, as well as a realized loss of $161,650.
 
For the year ended December 31, 1997, the Fund incurred approximately $279,015
in brokerage commissions with DWR for portfolio transactions executed on behalf
of the Fund.
 
For the period May 31, 1997 through December 31, 1997, the Fund incurred
brokerage commissions of $2,000 with Morgan Stanley & Co., Inc., an affiliate of
the Investment Manager since May 31, 1997, for portfolio transactions executed
on behalf of the Fund.
 
Dean Witter Trust FSB, an affiliate of the Investment Manager and Distributor,
is the Fund's transfer agent. At December 31, 1997, the Fund had transfer agent
fees and expenses payable of approximately $40,000.
 
The Fund has an unfunded noncontributory defined benefit pension plan covering
all independent Trustees of the Fund who will have served as independent
Trustees for at least five years at the time of retirement. Benefits under this
plan are based on years of service and compensation during the last five years
of service. Aggregate pension costs for the year ended December 31, 1997
included in Trustees' fees and expenses in the Statement of Operations amounted
to $2,876. At December 31, 1997, the Fund had an accrued pension liability of
$49,193 which is included in accrued expenses in the Statement of Assets and
Liabilities.
 
5. FEDERAL INCOME TAX STATUS
 
As of December 31, 1997, the Fund had temporary book/tax differences primarily
attributable to capital loss deferrals on wash sales.
 
                                       62
<PAGE>
DEAN WITTER UTILITIES FUND
NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 1997, CONTINUED
 
6. SHARES OF BENEFICIAL INTEREST
 
Transactions in shares of beneficial interest were as follows:
 
<TABLE>
<CAPTION>
                                                                           FOR THE YEAR                  FOR THE YEAR
                                                                              ENDED                         ENDED
                                                                        DECEMBER 31, 1997+            DECEMBER 31, 1996
                                                                   ----------------------------   --------------------------
                                                                     SHARES          AMOUNT         SHARES         AMOUNT
                                                                   -----------   --------------   -----------   ------------
<S>                                                                <C>           <C>              <C>           <C>
CLASS A SHARES*
Sold.............................................................      772,410   $   12,186,174       --             --
Reinvestment of dividends and distributions......................       16,570          271,414       --             --
Redeemed.........................................................     (578,404)      (9,675,382)      --             --
                                                                   -----------   --------------   -----------   ------------
Net increase -- Class A..........................................      210,576        2,782,206       --             --
                                                                   -----------   --------------   -----------   ------------
 
CLASS B SHARES
Sold.............................................................   11,966,780      194,020,522    20,469,306   $305,649,321
Reinvestment of dividends and distributions......................   13,633,251      220,842,234     6,797,078    100,198,592
Redeemed.........................................................  (57,908,671)    (910,948,280)  (70,657,866)  (1,047,917,610)
                                                                   -----------   --------------   -----------   ------------
Net decrease -- Class B..........................................  (32,308,640)    (496,085,524)  (43,391,482)  (642,069,697)
                                                                   -----------   --------------   -----------   ------------
 
CLASS C SHARES*
Sold.............................................................       79,155        1,330,983       --             --
Reinvestment of dividends and distributions......................        3,294           54,114       --             --
Redeemed.........................................................          (70)          (1,121)      --             --
                                                                   -----------   --------------   -----------   ------------
Net increase -- Class C..........................................       82,379        1,383,976       --             --
                                                                   -----------   --------------   -----------   ------------
 
CLASS D SHARES*
Sold.............................................................      128,367        2,102,719       --             --
Reinvestment of dividends and distributions......................       94,075        1,539,246       --             --
Redeemed.........................................................     (113,508)      (1,857,447)      --             --
                                                                   -----------   --------------   -----------   ------------
Net increase -- Class D..........................................      108,934        1,784,518       --             --
                                                                   -----------   --------------   -----------   ------------
Net decrease in Fund.............................................  (31,906,751)  $ (490,134,824)  (43,391,482)  $(642,069,697)
                                                                   -----------   --------------   -----------   ------------
                                                                   -----------   --------------   -----------   ------------
</TABLE>
 
- ---------------------
 
 +   On July 28, 1997, 898,035 shares representing $14,269,769 were transferred
     to Class D.
 *   For the period July 28, 1997 (issue date) through December 31, 1997.
 
                                       63
<PAGE>
DEAN WITTER UTILITIES FUND
FINANCIAL HIGHLIGHTS
 
Selected ratios and per share data for a share of beneficial interest
outstanding throughout each period:
 
<TABLE>
<CAPTION>
                                                                                                                         FOR THE
                                                                                                                         PERIOD
                                                                                                                        APRIL 29,
                                                                                                                          1988*
                                                    FOR THE YEAR ENDED DECEMBER 31,                                      THROUGH
                  ----------------------------------------------------------------------------------------------------  DECEMBER
                   1997**++     1996       1995        1994       1993       1992        1991       1990       1989     31, 1988
- ---------------------------------------------------------------------------------------------------------------------------------
 
<S>               <C>         <C>        <C>        <C>         <C>        <C>        <C>         <C>        <C>        <C>
CLASS B SHARES
 
PER SHARE
OPERATING
PERFORMANCE:
 
Net asset value,
 beginning of
 period.......... $    15.22  $   15.15  $   12.30  $    14.34  $   13.37  $  12.93   $    11.48  $   12.22  $  10.41   $10.00
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ---------
 
Net investment
 income..........       0.50       0.56       0.58        0.63       0.61      0.63         0.65       0.65      0.63    0.40
 
Net realized and
 unrealized gain
 (loss)..........       3.28       0.16       2.85       (2.04)      1.09      0.47         1.45      (0.71)     1.86    0.38
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ---------
 
Total from
 investment
 operations......       3.78       0.72       3.43       (1.41)      1.70      1.10         2.10      (0.06)     2.49    0.78
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ---------
 
Less dividends
 and
 distributions
 from:
   Net investment
   income........      (0.51)     (0.58)     (0.58)      (0.61)     (0.61)    (0.63)       (0.65)     (0.65)    (0.67)  (0.36)
   Net realized
   gain..........      (1.45)     (0.07)    --           (0.02)     (0.12)    (0.03)      --          (0.03)    (0.01)  (0.01)
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ---------
 
Total dividends
 and
 distributions...      (1.96)     (0.65)     (0.58)      (0.63)     (0.73)    (0.66)       (0.65)     (0.68)    (0.68)  (0.37)
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ---------
 
Net asset value,
 end of period... $    17.04  $   15.22  $   15.15  $    12.30  $   14.34  $  13.37   $    12.93  $   11.48  $  12.22   $10.41
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ---------
                  ----------  ---------  ---------  ----------  ---------  ---------  ----------  ---------  ---------  ---------
 
TOTAL INVESTMENT
RETURN+..........      25.79%      4.99%     28.42%      (9.90)%     12.79%     8.75%      18.89%     (0.27)%    24.51%  7.90%(1)
 
RATIOS TO AVERAGE
NET ASSETS:
Expenses.........       1.67%      1.64%      1.65%       1.64%      1.46%     1.59%        1.59%      1.67%     1.68%   1.84%(2)
 
Net investment
 income..........       3.15%      3.63%      4.19%       4.67%      4.32%     5.05%        5.58%      5.85%     6.07%   6.69%(2)
 
SUPPLEMENTAL DATA:
Net assets, end
 of period, in
 millions........    $ 2,430    $ 2,677    $ 3,321     $ 2,827    $ 3,881    $ 2,926     $ 1,959    $ 1,369    $ 1,131      $ 458
 
Portfolio
 turnover rate...          6%         7%         9%         11%        16%       14%          13%        13%       25%     12%(1)
 
Average
 commission rate
 paid............   $ 0.0555   $ 0.0547     --          --         --         --          --         --         --       --
</TABLE>
 
- ---------------------
 
 *   Commencement of operations.
**   Prior to July 28, 1997, the Fund issued one class of shares. All shares of
     the Fund held prior to that date, other than shares held by certain
     employee benefit plans established by Dean Witter Reynolds Inc. and its
     affiliate, SPS Transaction Services, Inc., have been designated Class B
     shares. Shares held by those employee benefit plans prior to July 28, 1997
     have been designated Class D shares.
++   The per share amounts were computed using an average number of shares
     outstanding during the period.
 +   Does not reflect the deduction of sales charge. Calculated based on the net
     asset value as of the last business day of the period.
(1)  Not annualized.
(2)  Annualized.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
 
                                       64
<PAGE>
DEAN WITTER UTILITIES FUND
FINANCIAL HIGHLIGHTS, CONTINUED
 
<TABLE>
<CAPTION>
                                                                         FOR THE PERIOD
                                                                         JULY 28, 1997*
                                                                            THROUGH
                                                                          DECEMBER 31,
                                                                             1997++
- ----------------------------------------------------------------------------------------
<S>                                                                     <C>
CLASS A SHARES
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 15.89
                                                                             ------
Net investment income.................................................         0.27
Net realized and unrealized gain......................................         2.52
                                                                             ------
Total from investment operations......................................         2.79
                                                                             ------
Less dividends and distributions from:
   Net investment income..............................................        (0.35)
   Net realized gain..................................................        (1.32)
                                                                             ------
Total dividends and distributions.....................................        (1.67)
                                                                             ------
Net asset value, end of period........................................      $ 17.01
                                                                             ------
                                                                             ------
TOTAL INVESTMENT RETURN+..............................................        18.06%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         0.92%(2)
Net investment income.................................................         4.05%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................           $ 3,581
Portfolio turnover rate...............................................            6%
Average commission rate paid..........................................          $ 0.0555
</TABLE>
 
<TABLE>
<S>                                                                     <C>
CLASS C SHARES
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 15.89
                                                                             ------
Net investment income.................................................         0.22
Net realized and unrealized gain......................................         2.51
                                                                             ------
Total from investment operations......................................         2.73
                                                                             ------
Less dividends and distributions from:
   Net investment income..............................................        (0.24)
   Net realized gain..................................................        (1.32)
                                                                             ------
Total dividends and distributions.....................................        (1.56)
                                                                             ------
Net asset value, end of period........................................      $ 17.06
                                                                             ------
                                                                             ------
TOTAL INVESTMENT RETURN+..............................................        17.67%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         1.69%(2)
Net investment income.................................................         3.14%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................           $ 1,405
Portfolio turnover rate...............................................            6%
Average commission rate paid..........................................          $ 0.0555
</TABLE>
 
- ---------------------
 
 *   The date shares were first issued.
++   The per share amounts were computed using an average number of shares
     outstanding during the period.
 +   Does not reflect the deduction of sales charge. Calculated based on the net
     asset value as of the last business day of the period.
(1)  Not annualized.
(2)  Annualized.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
 
                                       65
<PAGE>
DEAN WITTER UTILITIES FUND
FINANCIAL HIGHLIGHTS, CONTINUED
 
<TABLE>
<CAPTION>
                                                                         FOR THE PERIOD
                                                                         JULY 28, 1997*
                                                                            THROUGH
                                                                          DECEMBER 31,
                                                                             1997++
- ----------------------------------------------------------------------------------------
 
<S>                                                                     <C>
CLASS D SHARES
 
PER SHARE OPERATING PERFORMANCE:
 
Net asset value, beginning of period..................................      $ 15.89
                                                                             ------
 
Net investment income.................................................         0.22
 
Net realized and unrealized gain......................................         2.58
                                                                             ------
 
Total from investment operations......................................         2.80
                                                                             ------
 
Less dividends and distributions from:
   Net investment income..............................................        (0.38)
   Net realized gain..................................................        (1.32)
                                                                             ------
 
Total dividends and distributions.....................................        (1.70)
                                                                             ------
 
Net asset value, end of period........................................      $ 16.99
                                                                             ------
                                                                             ------
 
TOTAL INVESTMENT RETURN+..............................................        18.13%(1)
 
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         0.67%(2)
 
Net investment income.................................................         4.21%(2)
 
SUPPLEMENTAL DATA:
 
Net assets, end of period, in thousands...............................          $ 17,106
 
Portfolio turnover rate...............................................            6%
 
Average commission rate paid..........................................          $ 0.0555
</TABLE>
 
- ---------------------
 
 *   The date shares were first issued. Shareholders who held shares of the Fund
     prior to July 28, 1997 (the date the Fund converted to a multiple class
     share structure) should refer to the Financial Highlights of Class B to
     obtain the historical per share data and ratio information of their shares.
++   The per share amounts were computed using an average number of shares
     outstanding during the period.
 +   Calculated based on the net asset value as of the last business day of the
     period.
(1)  Not annualized.
(2)  Annualized.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
 
                                       66
<PAGE>
DEAN WITTER UTILITIES FUND
REPORT OF INDEPENDENT ACCOUNTANTS
 
TO THE SHAREHOLDERS AND TRUSTEES
OF DEAN WITTER UTILITIES FUND
 
In our opinion, the accompanying statement of assets and liabilities, including
the portfolio of investments, and the related statements of operations and of
changes in net assets and the financial highlights present fairly, in all
material respects, the financial position of Dean Witter Utilities Fund (the
"Fund") at December 31, 1997, the results of its operations for the year then
ended, the changes in its net assets for each of the two years in the period
then ended and the financial highlights for each of the periods presented, in
conformity with generally accepted accounting principles. These financial
statements and financial highlights (hereafter referred to as "financial
statements") are the responsibility of the Fund's management; our responsibility
is to express an opinion on these financial statements based on our audits. We
conducted our audits of these financial statements in accordance with generally
accepted auditing standards which require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements, assessing
the accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits, which included confirmation of securities at December 31, 1997 by
correspondence with the custodian and brokers, provide a reasonable basis for
the opinion expressed above.
 
PRICE WATERHOUSE LLP
1177 AVENUE OF THE AMERICAS
NEW YORK, NEW YORK 10036
FEBRUARY 6, 1998
 
                                       67
<PAGE>
DEAN WITTER UTILITIES FUND
FEDERAL TAX NOTICE (UNAUDITED)
 
                            1997 FEDERAL TAX NOTICE
 
For the year ended December 31, 1997, the Fund paid to shareholders the
following per share amounts from long-term capital gains. These distributions
are taxable as 28% rate gains or 20% rate gains, as indicated below:
 
<TABLE>
<CAPTION>
                                   PER SHARE
                           --------------------------
                           CLASS  CLASS  CLASS  CLASS
                             A      B      C      D
                           -----  -----  -----  -----
<S>                        <C>    <C>    <C>    <C>
Portion of long-term
capital gains taxable as:
  28% rate gain..........  $0.46  $0.59  $0.46  $0.46
  20% rate gain..........   0.86   0.86   0.86   0.86
                           -----  -----  -----  -----
Total long-term capital
gains....................  $1.32  $1.45  $1.32  $1.32
                           -----  -----  -----  -----
                           -----  -----  -----  -----
</TABLE>
 
For the year ended December 31, 1997, 99.91% of the income dividends qualified
for the dividends received deduction available to corporations.
 
                                       68
<PAGE>
APPENDIX
- --------------------------------------------------------------------------------
 
RATINGS
 
MOODY'S INVESTORS SERVICE INC. ("MOODY'S")
 
                                  BOND RATINGS
 
Aaa   Bonds which are rated Aaa are judged to be of the best quality. They carry
      the smallest degree of investment risk and are generally referred to as
      "gilt edge." Interest payments are protected by a large or by an
      exceptionally stable margin and principal is secure. While the various
      protective elements are likely to change, such changes as can be
      visualized are most unlikely to impair the fundamentally strong position
      of such issues.
 
Aa    Bonds which are rated Aa are judged to be of high quality by all
      standards. Together with the Aaa group they comprise what are generally
      known as high grade bonds. They are rated lower than the best bonds
      because margins of protection may not be as large as in Aaa securities or
      fluctuation of protective elements may be of greater amplitude or there
      may be other elements present which make the long-term risks appear
      somewhat larger than in Aaa securities.
 
A     Bonds which are rated A possess many favorable investment attributes and
      are to be considered as upper medium grade obligations. Factors giving
      security to principal and interest are considered adequate, but elements
      may be present which suggest a susceptibility to impairment sometime in
      the future.
 
Baa   Bonds which are rated Baa are considered as medium grade obligations;
      i.e., they are neither highly protected nor poorly secured. Interest
      payments and principal security appear adequate for the present but
      certain protective elements may be lacking or may be characteristically
      unreliable over any great length of time. Such bonds lack outstanding
      investment characteristics and in fact have speculative characteristics as
      well.
 
      Bonds rated Aaa, Aa, A and Baa are considered investment grade bonds.
 
    RATING REFINEMENTS:  Moody's may apply numerical modifiers, 1, 2, and 3 in
each generic rating classification from Aa through B in its corporate and
municipal bond rating system. The modifier 1 indicates that the security ranks
in the higher end of its generic rating category; the modifier 2 indicates a
mid-range ranking; and a modifier 3 indicates that the issue ranks in the lower
end of its generic rating category.
 
                            COMMERCIAL PAPER RATINGS
 
    Moody's Commercial Paper ratings are opinions of the ability to repay
punctually promissory obligations not having an original maturity in excess of
nine months. Moody's employs the following three designations, all judged to be
investment grade, to indicate the relative repayment capacity of rated issuers:
Prime-1, Prime-2, Prime-3.
 
    Issuers rated Prime-1 have a superior capacity for repayment of short-term
promissory obligations. Issuers rated Prime-2 have a strong capacity for
repayment of short-term promissory obligations; and Issuers rated Prime-3 have
an acceptable capacity for repayment of short-term promissory obligations.
Issuers rated Not Prime do not fall within any of the Prime rating categories.
 
STANDARD & POOR'S CORPORATION ("STANDARD & POOR'S")
 
                                  BOND RATINGS
 
    A Standard & Poor's bond rating is a current assessment of the
creditworthiness of an obligor with respect to a specific obligation. This
assessment may take into consideration obligors such as guarantors, insurers, or
lessees.
 
                                       69
<PAGE>
    The ratings are based on current information furnished by the issuer or
obtained by Standard & Poor's from other sources it considers reliable. The
ratings are based, in varying degrees, on the following considerations: (1)
likelihood of default-capacity and willingness of the obligor as to the timely
payment of interest and repayment of principal in accordance with the terms of
the obligation; (2) nature of and provisions of the obligation; and (3)
protection afforded by, and relative position of, the obligation in the event of
bankruptcy, reorganization or other arrangement under the laws of bankruptcy and
other laws affecting creditors' rights.
 
    Standard & Poor's does not perform an audit in connection with any rating
and may, on occasion, rely on unaudited financial information. The ratings may
be changed, suspended or withdrawn as a result of changes in, or unavailability
of, such information, or for other reasons.
 
AAA   Debt rated AAA has the highest rating assigned by Standard & Poor's.
      Capacity to pay interest and repay principal is extremely strong.
 
AA    Debt rated AA has a very strong capacity to pay interest and repay
      principal and differs from the highest-rated issues only in small degree.
 
A     Debt rated A has a strong capacity to pay interest and repay principal
      although they are somewhat more susceptible to the adverse effects of
      changes in circumstances and economic conditions than debt in higher-rated
      categories.
 
BBB   Debt rated BBB is regarded as having an adequate capacity to pay interest
      and repay principal. Whereas it normally exhibits adequate protection
      parameters, adverse economic conditions or changing circumstances are more
      likely to lead to a weakened capacity to pay interest and repay principal
      for debt in this category than for debt in higher-rated categories.
 
      Bonds rated AAA, AA, A and BBB are considered investment grade bonds.
 
NR    Indicates that no rating has been requested, that there is insufficient
      information on which to base a rating or that Standard & Poor's does not
      rate a particular type of obligation as a matter of policy.
 
                            COMMERCIAL PAPER RATINGS
 
    Standard and Poor's commercial paper rating is a current assessment of the
likelihood of timely payment of debt having an original maturity of no more than
365 days. The commercial paper rating is not a recommendation to purchase or
sell a security. The ratings are based upon current information furnished by the
issuer or obtained by S&P from other sources it considers reliable. The ratings
may be changed, suspended, or withdrawn as a result of changes in or
unavailability of such information. Ratings are graded into group categories,
ranging from "A" for the highest quality obligations to "D" for the lowest. The
categories are as follows:
 
    Issues assigned A ratings are regarded as having the greatest capacity for
timely payment. Issues in this category are further refined with the designation
1, 2 and 3 to indicate the relative degree of safety.
 
A-1   indicates that the degree of safety regarding timely payment is very
      strong.
 
A-2   indicates capacity for timely payment on issues with this designation is
      strong. However, the relative degree of safety is not as overwhelming as
      for issues designated "A-1".
 
A-3   indicates a satisfactory capacity for timely payment. Obligations carrying
      this designation are, however, somewhat more vulnerable to the adverse
      effects of changes in circumstances than obligations carrying the higher
      designations.
 
                                       70

<PAGE>

                              DEAN WITTER UTILITIES FUND

                              PART C  OTHER INFORMATION


Item 24.  Financial Statements and Exhibits

     (a) FINANCIAL STATEMENTS 

     (1) Financial statements and schedules, included  in Prospectus (Part A)

                                                                       Page in
                                                                      Prospectus
                                                                      ----------
         Financial Highlights for the period April 29, 1988 
         (commencement of operations) through December  31, 1988,
         and for the years ended December 31, 1988 and for the 
         years ended 1989, 1990, 1991, 1992, 1993, 1994,1995, 
         1996 and 1997 (Class B) . . . . . . . . . . . . . . . . . . .     6

         Financial Highlights for the period July 28, 1997 
         through December 31, 1997 ( Classes A, C and D) . . . . . . .     7


     (2) Financial statements included in the Statement of 
         Additional Information (Part B):


                                                                     Page in SAI
                                                                     -----------

         Portfolio of Investments at December 31, 1997 . . . . . . . .     50

         Statement of Assets and Liabilities at 
         December 31, 1997 . . . . . . . . . . . . . . . . . . . . . .      55

         Statement of Operations for the year ended 
         December 31, 1997 . . . . . . . . . . . . . . . . . . . . . .      56

         Statement of Changes in Net Assets for the years ended
         December 31, 1996 and 1997. . . . . . . . . . . . . . . . . .      57

         Notes to Financial Statements . . . . . . . . . . . . . . . .      58

         Financial Highlights for the period April 29, 1988 
         (commencement of operations)  through December  31, 
         1988, and for the years ended December 31, 1989, 
         1990, 1991, 1992, 1993, 1994, 1995, 1996 and 1997
         (Class B)   . . . . . . . . . . . . . . . . . . . . . . . . .       64

         Financial Highlights for the period July 28, 1997 
         through December 31, 1997 (Classes A, C and D) . . . . . . .       65


     (3) Financial statements included in Part C:

               None

<PAGE>

     (b) EXHIBITS:

2.    -   Amended and Restated By-Laws of the Registrant dated as of 
          October 23, 1997

8.    -   Form of Amended and Restated Transfer Agency Agreement between the
          Registrant and Dean Witter Trust FSB 

11.   -   Consent of Independent Accountants

16.   -   Schedules for Computation of Performance Quotations 

27.   -   Financial Data Schedules

OTHER -   POWER OF ATTORNEY

All other exhibits were previously filed via EDGAR and are hereby incorporated
by reference

Item 25.  PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT.

               None 

Item 26.  NUMBER OF HOLDERS OF SECURITIES.

                (1)                         (2)
                                            Number of Record Holders
     Title of Class                         at January 31, 1998
     --------------                         ------------------------

Class A                                              51
Class B                                         150,063
Class C                                             113
Class D                                               7

Item 27.  INDEMNIFICATION

     Pursuant to Section 5.3 of the Registrant's Declaration of Trust and under
Section 4.8 of the Registrant's By-Laws, the indemnification of the Registrant's
trustees, officers, employees and agents is permitted if it is determined that
they acted under the belief that their actions were in or not opposed to the
best interest of the Registrant, and, with respect to any criminal proceeding,
they had reasonable cause to believe their conduct was not unlawful.  In
addition, indemnification is permitted only if it is determined that the actions
in question did not render them liable by reason of willful misfeasance, bad
faith or gross negligence in the performance of their duties or by reason of
reckless disregard of their obligations and duties to the Registrant.  Trustees,
officers, employees and agents will be indemnified for the expense of litigation
if it is determined that they are entitled to indemnification against any
liability established in such litigation.  The Registrant may also advance money
for these expenses provided that they give their undertakings to repay the
Registrant unless their conduct is later determined to permit indemnification.


                                          2

<PAGE>

     Pursuant to Section 5.2 of the Registrant's Declaration of Trust and
paragraph 8 of the Registrant's Investment Management Agreement, neither the
Investment Manager nor any trustee, officer, employee or agent of the Registrant
shall be liable for any action or failure to act, except in the case of bad
faith, willful misfeasance, gross negligence or reckless disregard of duties to
the Registrant.

     Insofar as indemnification for liabilities arising under the Securities 
Act of 1933 (the "Act") may be permitted to trustees, officers and 
controlling persons of the Registrant pursuant to the foregoing provisions or 
otherwise, the Registrant has been advised that in the opinion of the  
Securities and Exchange Commission such indemnification is against public 
policy as expressed in the Act and is, therefore, unenforceable.  In the 
event that a claim for indemnification against such liabilities (other than 
the payment by the Registrant of expenses incurred or paid by a trustee, 
officer, or controlling person of the Registrant in connection with the 
successful defense of any action, suit or proceeding) is asserted against the 
Registrant by such trustee, officer or controlling person in connection with 
the shares being registered, the Registrant will, unless in the opinion of 
its counsel the matter has been settled by controlling precedent, submit to a 
court of appropriate jurisdiction the question whether such indemnification 
by it is against public policy as expressed in the Act, and will be governed 
by the final adjudication of such issue.

     The Registrant hereby undertakes that it will apply the indemnification 
provision of its by-laws in a manner consistent with Release 11330 of the 
Securities and Exchange Commission under the Investment Company Act of 1940, 
so long as the interpretation of Sections 17(h) and 17(i) of such Act remains 
in effect.

     Registrant, in conjunction with the Investment Manager, Registrant's
Trustees, and other registered investment management companies managed by the
Investment Manager, maintains insurance on behalf of any person who is or was a
Trustee, officer, employee, or agent of Registrant, or who is or was serving at
the request of Registrant as a trustee, director, officer, employee or agent of
another trust or corporation, against any liability asserted against him and
incurred by him or arising out of his position.  However, in no event will
Registrant maintain insurance to indemnify any such person for any act for which
Registrant itself is not permitted to indemnify him.

Item 28. BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISER.

     See "The Fund and Its Management" in the Prospectus regarding the business
of the investment adviser.  The following information is given regarding
officers of Dean Witter InterCapital Inc. InterCapital is a wholly-owned
subsidiary of Morgan Stanley, Dean Witter, Discover & Co. The principal address
of the Dean Witter Funds is Two World Trade Center, New York, New York 10048.

     The term "Dean Witter Funds" used below refers to the following registered
investment companies: 


                                          3

<PAGE>

CLOSED-END INVESTMENT COMPANIES
 (1) InterCapital Income Securities Inc.
 (2) High Income Advantage Trust
 (3) High Income Advantage Trust II
 (4) High Income Advantage Trust III
 (5) Municipal Income Trust
 (6) Municipal Income Trust II
 (7) Municipal Income Trust III
 (8) Dean Witter Government Income Trust
 (9) Municipal Premium Income Trust
(10) Municipal Income Opportunities Trust
(11) Municipal Income Opportunities Trust II
(12) Municipal Income Opportunities Trust III
(13) Prime Income Trust
(14) InterCapital Insured Municipal Bond Trust
(15) InterCapital Quality Municipal Income Trust
(16) InterCapital Quality Municipal Investment Trust
(17) InterCapital Insured Municipal Income Trust
(18) InterCapital California Insured Municipal Income Trust
(19) InterCapital Insured Municipal Trust
(20) InterCapital Quality Municipal Securities
(21) InterCapital New York Quality Municipal Securities
(22) InterCapital California Quality Municipal Securities
(23) InterCapital Insured California Municipal Securities 
(24) InterCapital Insured Municipal Securities

OPEN-END INVESTMENT COMPANIES:

 (1) Dean Witter Short-Term Bond Fund
 (2) Dean Witter Tax-Exempt Securities Trust
 (3) Dean Witter Tax-Free Daily Income Trust
 (4) Dean Witter Dividend Growth Securities Inc.
 (5) Dean Witter Convertible Securities Trust
 (6) Dean Witter Liquid Asset Fund Inc.
 (7) Dean Witter Developing Growth Securities Trust
 (8) Dean Witter Retirement Series
 (9) Dean Witter Federal Securities Trust
(10) Dean Witter World Wide Investment Trust
(11) Dean Witter U.S. Government Securities Trust
(12) Dean Witter Select Municipal Reinvestment Fund
(13) Dean Witter High Yield Securities Inc.
(14) Dean Witter Intermediate Income Securities
(15) Dean Witter New York Tax-Free Income Fund
(16) Dean Witter California Tax-Free Income Fund
(17) Dean Witter Health Sciences Trust
(18) Dean Witter California Tax-Free Daily Income Trust
(19) Dean Witter Global Asset Allocation Fund


                                          4

<PAGE>

(20) Dean Witter American Value Fund
(21) Dean Witter Strategist Fund
(22) Dean Witter Utilities Fund
(23) Dean Witter World Wide Income Trust
(24) Dean Witter New York Municipal Money Market Trust
(25) Dean Witter Capital Growth Securities
(26) Dean Witter Precious Metals and Minerals Trust
(27) Dean Witter European Growth Fund Inc.
(28) Dean Witter Global Short-Term Income Fund Inc.
(29) Dean Witter Pacific Growth Fund Inc.
(30) Dean Witter Multi-State Municipal Series Trust
(31) Dean Witter Short-Term U.S. Treasury Trust
(32) Dean Witter Diversified Income Trust
(33) Dean Witter U.S. Government Money Market Trust
(34) Dean Witter Global Dividend Growth Securities
(35) Active Assets California Tax-Free Trust
(36) Dean Witter Natural Resource Development Securities Inc.
(37) Active Assets Government Securities Trust
(38) Active Assets Money Trust
(39) Active Assets Tax-Free Trust
(40) Dean Witter Limited Term Municipal Trust
(41) Dean Witter Variable Investment Series
(42) Dean Witter Value-Added Market Series
(43) Dean Witter Global Utilities Fund
(44) Dean Witter International SmallCap Fund
(45) Dean Witter Mid-Cap Growth Fund
(46) Dean Witter Select Dimensions Investment Series
(47) Dean Witter Balanced Growth Fund
(48) Dean Witter Balanced Income Fund
(49) Dean Witter Hawaii Municipal Trust
(50) Dean Witter Capital Appreciation Fund
(51) Dean Witter Intermediate Term U.S. Treasury Trust 
(52) Dean Witter Information Fund
(53) Dean Witter Japan Fund
(54) Dean Witter Income Builder Fund
(55) Dean Witter Special Value Fund
(56) Dean Witter Financial Services Trust
(57) Dean Witter Market Leader Trust
(58) Dean Witter S&P 500 Index Fund
(59) Dean Witter Fund of Funds
(60) Morgan Stanley Dean Witter "Competitive Edge" Fund,
     "Best Ideas" Portfolio

The term "TCW/DW Funds" refers to the following registered investment companies:


                                          5

<PAGE>

OPEN-END INVESTMENT COMPANIES
 (1) TCW/DW Core Equity Trust
 (2) TCW/DW North American Government Income Trust
 (3) TCW/DW Latin American Growth Fund
 (4) TCW/DW Income and Growth Fund 
 (5) TCW/DW Small Cap Growth Fund
 (6) TCW/DW Balanced Fund 
 (7) TCW/DW Total Return Trust
 (8) TCW/DW Mid-Cap Equity Trust
 (9) TCW/DW Global Telecom Trust
(10) TCW/DW Strategic Income Trust
(11) TCW/DW Emerging Markets Opportunities Trust

CLOSED-END INVESTMENT COMPANIES
 (1) TCW/DW Term Trust 2000
 (2) TCW/DW Term Trust 2002 
 (3) TCW/DW Term Trust 2003

NAME AND POSITION             OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
WITH DEAN WITTER              OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
INTERCAPITAL INC.             AND NATURE OF CONNECTION
- -----------------             ------------------------------------------------

Charles A. Fiumefreddo        Executive Vice President and Director of Dean
Chairman, Chief Executive     Witter Reynolds Inc. ("DWR"); Chairman, Chief 
Officer and Director          Executive Officer and Director of Dean Witter
                              Distributors Inc. ("Distributors") and Dean Witter
                              Services Company Inc. ("DWSC"); Chairman and
                              Director of Dean Witter Trust FSB ("DWT");
                              Chairman, Director or Trustee, President and Chief
                              Executive Officer of the Dean Witter Funds and
                              Chairman, Chief Executive Officer and Trustee of
                              the TCW/DW Funds; Director and/or officer of
                              various Morgan Stanley, Dean Witter, Discover &
                              Co. ("MSDWD") subsidiaries.

Philip J. Purcell             Chairman, Chief Executive Officer and Director 
Director                      of MSDWD and DWR; Director of DWSC and
                              Distributors; Director or Trustee of the Dean
                              Witter Funds; Director and/or officer of various
                              MSDWD subsidiaries.

Richard M. DeMartini          President and Chief Operating Officer
Director                      of Dean Witter Capital, a division of DWR;
                              Director of DWR, DWSC, Distributors and DWT;
                              Trustee of the TCW/DW Funds.


                                          6

<PAGE>

NAME AND POSITION             OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
WITH DEAN WITTER              OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
INTERCAPITAL INC.             AND NATURE OF CONNECTION
- -----------------             ------------------------------------------------

James F. Higgins              President and Chief Operating Officer of
Director                      Dean Witter Financial; Director of DWR, DWSC,
                              Distributors and DWT.

Thomas C. Schneider           Executive Vice President and Chief Strategic
Executive Vice                and Administrative Officer of MSDWD; Executive
President, Chief              Vice President and Chief Financial Officer of 
Financial Officer and         DWSC and Distributors; Director of DWR,
Director                      DWSC, Distributors and MSDWD.


Christine A. Edwards          Executive Vice President, Chief Legal Officer
Director                      and Secretary of MSDWD; Executive Vice President,
                              Secretary and Chief Legal Officer of Distributors;
                              Director of DWR, DWSC and Distributors.

Mitchell M. Merin             President and Chief Strategic Officer of DWSC,
President and Chief           Executive Vice President of Distributors; 
Strategic Officer             Executive Vice President and Director of DWT;
                              Executive Vice President and Director of DWR;
                              Director of SPS Transaction Services, Inc. and
                              various other MSDWD subsidiaries. 

Robert M. Scanlan             President and Chief Operating Officer of DWSC, 
President and Chief           Executive Vice President of Distributors;
Operating Officer             Executive Vice President and Director of DWT; Vice
                              President of the Dean Witter Funds and the TCW/DW
                              Funds.

John B. Van Heuvelen          President, Chief Operating Officer and Director
Executive Vice                of DWT.
President

Joseph J. McAlinden           Vice President of the Dean Witter Funds and
Executive Vice President      Director of DWT.
and Chief Investment
Officer

Edward C. Oelsner, III
Executive Vice President


                                          7

<PAGE>

NAME AND POSITION             OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
WITH DEAN WITTER              OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
INTERCAPITAL INC.             AND NATURE OF CONNECTION
- -----------------             ------------------------------------------------

Barry Fink                    Assistant Secretary of DWR; Senior Vice President,
Senior Vice President,        Secretary and General Counsel of DWSC; Senior Vice
Secretary and General         President, Assistant Secretary and Assistant 
Counsel                       General Counsel of Distributors; Vice President,
                              Secretary and General Counsel of the Dean Witter 
                              Funds and the TCW/DW Funds.

Peter M. Avelar               
Senior Vice President         Vice President of various Dean Witter Funds.

Mark Bavoso                   
Senior Vice President         Vice President of various Dean Witter Funds.

Richard Felegy
Senior Vice President

Edward F. Gaylor              
Senior Vice President         Vice President of various Dean Witter Funds.

Robert S. Giambrone           Senior Vice President of DWSC, Distributors and
Senior Vice President         DWT and Director of DWT; Vice President of the
                              Dean Witter Funds and the TCW/DW Funds. 

Rajesh K. Gupta               
Senior Vice President         Vice President of various Dean Witter Funds.

Kenton J. Hinchliffe          
Senior Vice President         Vice President of various Dean Witter Funds.

Kevin Hurley                  
Senior Vice President         Vice President of various Dean Witter Funds.

Margaret Iannuzzi
Senior Vice President

Jenny Beth Jones              
Senior Vice President         Vice President of Dean Witter Special Value Fund.

John B. Kemp, III             
Senior Vice President         President of Distributors.

Anita H. Kolleeny             
Senior Vice President         Vice President of various Dean Witter Funds.


                                          8

<PAGE>

NAME AND POSITION             OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
WITH DEAN WITTER              OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
INTERCAPITAL INC.             AND NATURE OF CONNECTION
- -----------------             ------------------------------------------------

Jonathan R. Page              
Senior Vice President         Vice President of various Dean Witter Funds.

Ira N. Ross                   
Senior Vice President         Vice President of various Dean Witter Funds.

Guy G. Rutherfurd, Jr.        Vice President of Dean Witter Market Leader
Senior Vice President         Trust.

Rafael Scolari                
Senior Vice President         Vice President of Prime Income Trust.

Rochelle G. Siegel            
Senior Vice President         Vice President of various Dean Witter Funds.

Jayne M. Stevlingson          
Senior Vice President         Vice President of various Dean Witter Funds.

Paul D. Vance                 
Senior Vice President         Vice President of various Dean Witter Funds.

Elizabeth A. Vetell
Senior Vice President

James F. Willison             
Senior Vice President         Vice President of various Dean Witter Funds.

Ronald J. Worobel             
Senior Vice President         Vice President of various Dean Witter Funds.

Douglas Brown
First Vice President

Thomas F. Caloia              First Vice President and Assistant Treasurer of
First Vice President          DWSC, Assistant Treasurer of Distributors;
and Assistant                 Treasurer and Chief Financial Officer of the
Treasurer                     Dean Witter Funds and the TCW/DW Funds.

Thomas Chronert
First Vice President


                                          9

<PAGE>

NAME AND POSITION             OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
WITH DEAN WITTER              OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
INTERCAPITAL INC.             AND NATURE OF CONNECTION
- -----------------             ------------------------------------------------

Rosalie Clough
First Vice President

Marilyn K. Cranney            Assistant Secretary of DWR; First Vice President
First Vice President          and Assistant Secretary of DWSC; Assistant
and Assistant Secretary       Secretary of the Dean Witter Funds and the TCW/DW
                              Funds.

Michael Interrante            First Vice President and Controller of DWSC; 
First Vice President          Assistant Treasurer of Distributors; First Vice
and Controller                President and Treasurer of DWT. 

David Johnson
First Vice President

Stanley Kapica
First Vice President

Robert Zimmerman
First Vice President

Dale Albright
Vice President

Joan G. Allman
Vice President

Andrew Arbenz
Vice President

Joseph Arcieri                
Vice President                Vice President of various Dean Witter Funds.

Nancy Belza
Vice President

Maurice Bendrihem
Vice President and 
Assistant Controller

Dale Boettcher
Vice President


                                          10

<PAGE>

NAME AND POSITION             OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
WITH DEAN WITTER              OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
INTERCAPITAL INC.             AND NATURE OF CONNECTION
- -----------------             ------------------------------------------------

Joseph Cardwell
Vice President

Philip Casparius
Vice President

B. Catherine Connelly
Vice President

Salvatore DeSteno             
Vice President                Vice President of DWSC.

Bruce Dunn
Vice President

Jeffrey D. Geffen
Vice President

Michael Geringer
Vice President

Stephen Greenhut
Vice President

Peter W. Gurman
Vice President

Matthew Haynes                Vice President of Dean Witter
Vice President                Variable Investment Series.

Peter Hermann                 
Vice President                Vice President of various Dean Witter Funds.

Elizabeth Hinchman
Vice President

David Hoffman
Vice President


                                          11

<PAGE>

NAME AND POSITION             OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
WITH DEAN WITTER              OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
INTERCAPITAL INC.             AND NATURE OF CONNECTION
- -----------------             ------------------------------------------------

Christopher Jones
Vice President

James P. Kastberg
Vice President
 
Michelle Kaufman              
Vice President                Vice President of various Dean Witter Funds.

Paula LaCosta                 
Vice President                Vice President of various Dean Witter Funds.

Thomas Lawlor
Vice President

Gerard J. Lian                
Vice President                Vice President of various Dean Witter Funds.

Catherine Maniscalco          Vice President of Dean Witter Natural 
Vice President                Resource Development Securities Inc.

Albert McGarity
Vice President

LouAnne D. McInnis            Vice President and Assistant Secretary of DWSC;
Vice President and            Assistant Secretary of the Dean Witter Funds and
Assistant Secretary           the TCW/DW Funds.

Sharon K. Milligan
Vice President

Julie Morrone
Vice President

Mary Beth Mueller
Vice President

David Myers                   Vice President of Dean Witter Natural   
Vice President                Resource Development Securities Inc.

James Nash
Vice President


                                          12

<PAGE>

NAME AND POSITION             OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
WITH DEAN WITTER              OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
INTERCAPITAL INC.             AND NATURE OF CONNECTION
- -----------------             ------------------------------------------------

Richard Norris
Vice President

Carsten Otto                  Vice President and Assistant Secretary of DWSC;
Vice President and            Assistant Secretary of the Dean Witter Funds and 
Assistant Secretary           the TCW/DW Funds.

George Paoletti
Vice President

Anne Pickrell                 
Vice President                Vice President of various Dean Witter Funds.

Michael Roan
Vice President

John Roscoe
Vice President

Hugh Rose
Vice President

Robert Rossetti               Vice President of Dean Witter Precious Metals and
Vice President                Minerals Trust.

Ruth Rossi                    Vice President and Assistant Secretary of DWSC;
Vice President and            Assistant Secretary of the Dean Witter Funds and
Assistant Secretary           the TCW/DW Funds.

Carl F. Sadler
Vice President

Deborah Santaniello
Vice President

Peter J. Seeley               
Vice President                Vice President of various Dean Witter Funds. 

Naomi Stein
Vice President

Kathleen H. Stromberg         
Vice President                Vice President of various Dean Witter Funds.


                                          13

<PAGE>

NAME AND POSITION             OTHER SUBSTANTIAL BUSINESS, PROFESSION, VOCATION
WITH DEAN WITTER              OR EMPLOYMENT, INCLUDING NAME, PRINCIPAL ADDRESS
INTERCAPITAL INC.             AND NATURE OF CONNECTION
- -----------------             ------------------------------------------------

Marybeth Swisher
Vice President

Robert Vanden Assem
Vice President

James P. Wallin
Vice President

Alice Weiss                   
Vice President                Vice President of various Dean Witter Funds.

Item 29.    PRINCIPAL UNDERWRITERS

Dean Witter Distributors Inc. ("Distributors"), a Delaware corporation, is 
the principal underwriter of the Registrant.  Distributors is also the 
principal underwriter of the following investment companies:

 (1) Dean Witter Liquid Asset Fund Inc.
 (2) Dean Witter Tax-Free Daily Income Trust
 (3) Dean Witter California Tax-Free Daily Income Trust
 (4) Dean Witter Retirement Series
 (5) Dean Witter Dividend Growth Securities Inc.
 (6) Dean Witter Global Asset Allocation
 (7) Dean Witter World Wide Investment Trust
 (8) Dean Witter Capital Growth Securities 
 (9) Dean Witter Convertible Securities Trust
(10) Active Assets Tax-Free Trust
(11) Active Assets Money Trust
(12) Active Assets California Tax-Free Trust
(13) Active Assets Government Securities Trust
(14) Dean Witter Short-Term Bond Fund
(15) Dean Witter Mid-Cap Growth Fund
(16) Dean Witter U.S. Government Securities Trust
(17) Dean Witter High Yield Securities Inc.
(18) Dean Witter New York Tax-Free Income Fund
(19) Dean Witter Tax-Exempt Securities Trust
(20) Dean Witter California Tax-Free Income Fund
(21) Dean Witter Limited Term Municipal Trust
(22) Dean Witter Natural Resource Development Securities Inc.
(23) Dean Witter World Wide Income Trust
(24) Dean Witter Utilities Fund
(25) Dean Witter Strategist Fund


                                          14

<PAGE>

(26) Dean Witter New York Municipal Money Market Trust
(27) Dean Witter Intermediate Income Securities
(28) Prime Income Trust
(29) Dean Witter European Growth Fund Inc.
(30) Dean Witter Developing Growth Securities Trust
(31) Dean Witter Precious Metals and Minerals Trust
(32) Dean Witter Pacific Growth Fund Inc.
(33) Dean Witter Multi-State Municipal Series Trust
(34) Dean Witter Federal Securities Trust
(35) Dean Witter Short-Term U.S. Treasury Trust
(36) Dean Witter Diversified Income Trust
(37) Dean Witter Health Sciences Trust
(38) Dean Witter Global Dividend Growth Securities
(39) Dean Witter American Value Fund
(40) Dean Witter U.S. Government Money Market Trust
(41) Dean Witter Global Short-Term Income Fund Inc.
(42) Dean Witter Value-Added Market Series
(43) Dean Witter Global Utilities Fund
(44) Dean Witter International SmallCap Fund
(45) Dean Witter Balanced Growth Fund
(46) Dean Witter Balanced Income Fund
(47) Dean Witter Hawaii Municipal Trust
(48) Dean Witter Variable Investment Series   
(49) Dean Witter Capital Appreciation Fund
(50) Dean Witter Intermediate Term U.S. Treasury Trust
(51) Dean Witter Information Fund
(52) Dean Witter Japan Fund
(53) Dean Witter Income Builder Fund
(54) Dean Witter Special Value Fund
(55) Dean Witter Financial Services Trust
(56) Dean Witter Market Leader Trust
(57) Dean Witter S&P 500 Index Fund
(58) Dean Witter Fund of Funds
(59) Morgan Stanley Dean Witter "Competitive Edge" Fund
     "Best Ideas" Portfolio
 (1) TCW/DW Core Equity Trust
 (2) TCW/DW North American Government Income Trust
 (3) TCW/DW Latin American Growth Fund
 (4) TCW/DW Income and Growth Fund
 (5) TCW/DW Small Cap Growth Fund
 (6) TCW/DW Balanced Fund
 (7) TCW/DW Total Return Trust
 (8) TCW/DW Mid-Cap Equity Trust
 (9) TCW/DW Global Telecom Trust 
(10) TCW/DW Strategic Income Trust
(11) TCW/DW Emerging Markets Opportunites Trust


                                          15

<PAGE>

     (b)  The following information is given regarding directors and officers of
     Distributors not listed in Item 28 above.  The principal address of
     Distributors is Two World Trade Center, New York, New York 10048.  None of
     the following persons has any position or office with the Registrant.

     Name                  Positions and Office with Distributors
     ----                  --------------------------------------
Fredrick K. Kubler       Senior Vice President, Assistant
                         Secretary and Chief Compliance
                         Officer.

Michael T. Gregg         Vice President and Assistant
                         Secretary.

Item 30.    LOCATION OF ACCOUNTS AND RECORDS

     All accounts, books and other documents required to be maintained by
Section 31(a) of the Investment Company Act of 1940 and the Rules thereunder are
maintained by the Investment Manager at its offices, except records relating to
holders of shares issued by the Registrant, which are maintained by the
Registrant's Transfer Agent, at its place of business as shown in the
prospectus.


Item 31.    MANAGEMENT SERVICES

     Registrant is not a party to any such management-related service contract.

Item 32.    UNDERTAKINGS

     Registrant hereby undertakes to furnish each person to whom a prospectus is
delivered with a copy of the Registrant's latest annual report to shareholders,
upon request and without charge.


                                          16

<PAGE>

                                      SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant certifies that it  has duly
caused this Post-Effective Amendment to the Registration Statement to be signed
on its behalf by the undersigned, thereunto duly authorized, in the City of New
York and State of New York on the 25th day of February, 1998.

                                              DEAN WITTER UTILITIES FUND
                                           By /s/Barry Fink
                                              ----------------------------------
                                                 Barry Fink
                                                 Vice President and Secretary

     Pursuant to the requirements of the Securities Act of 1933, this
Post-Effective Amendment No. 12 has been signed below by the following persons
in the capacities and on the dates indicated.

         Signatures                     Title                         Date
         ----------                     -----                         ----

(1) Principal Executive Officer         President, Chief
                                        Executive Officer,
                                        Trustee and Chairman
By   /s/Charles A. Fiumefreddo                                        02/25/98
   ---------------------------------
        Charles A. Fiumefreddo

(2) Principal Financial Officer         Treasurer and Principal
                                        Accounting Officer

By    /s/Thomas F. Caloia                                             02/25/98
   ---------------------------------
         Thomas F. Caloia

(3) Majority of the Trustees  

    Charles A. Fiumefreddo (Chairman)
    Philip J. Purcell


By    /s/Barry Fink                                                   02/25/98
   ---------------------------------
         Barry Fink
         Attorney-in-Fact

    Michael Bozic
    Edwin J. Garn
    John R. Haire
    Wayne E. Hedien
    Manuel H. Johnson
    MichaeL E. Nugent
    John L. Schroeder

By    /s/David M. Butowsky                                            02/25/98
   ---------------------------------
         David M. Butowsky
         Attorney-in-Fact

<PAGE>

                                    EXHIBIT INDEX

                              DEAN WITTER UTILITIES FUND




2.    -   Amended and Restated By-Laws of the Registrant dated as of October 23,
          1997

8.    -   Form of Amended and Restated Transfer Agency Agreement  between the
          Registrant and Dean Witter Trust FSB 

11.   -   Consent of Independent Accountants

16.   -   Schedules for Computation of Performance Quotations 

27.   -   Financial Data Schedules

Other -   Power of Attorney


<PAGE>

                                       BY-LAWS

                                          OF

                              DEAN WITTER UTILITIES FUND
                     AMENDED AND RESTATED AS OF OCTOBER 23, 1997

                                      ARTICLE I
                                     DEFINITIONS

   The terms "COMMISSION," "DECLARATION," "DISTRIBUTOR," "INVESTMENT ADVISER,"
"MAJORITY SHAREHOLDER VOTE," "1940 ACT," "SHAREHOLDER," "SHARES," "TRANSFER
AGENT," "TRUST," "TRUST PROPERTY," and "TRUSTEES" have the respective meanings
given them in the Declaration of Trust of Dean Witter Utilities Fund dated
December 8, 1987. 

                                      ARTICLE II
                                       OFFICES

   SECTION 2.1. PRINCIPAL OFFICE. Until changed by the Trustees, the principal
office of the Trust in the Commonwealth of Massachusetts shall be in the City of
Boston, County of Suffolk. 

   SECTION 2.2. OTHER OFFICES. In addition to its principal office in the
Commonwealth of Massachusetts, the Trust may have an office or offices in the
City of New York, State of New York, and at such other places within and without
the Commonwealth as the Trustees may from time to time designate or the business
of the Trust may require. 

                                     ARTICLE III
                                SHAREHOLDERS' MEETINGS

   SECTION 3.1. PLACE OF MEETINGS. Meetings of Shareholders shall be held at
such place, within or without the Commonwealth of Massachusetts, as may be
designated from time to time by the Trustees. 

   SECTION 3.2. MEETINGS. Meetings of Shareholders of the Trust shall be held
whenever called by the Trustees or the President of the Trust and whenever
election of a Trustee or Trustees by Shareholders is required by the provisions
of Section 16(a) of the 1940 Act, for that purpose. Meetings of Shareholders
shall also be called by the Secretary upon the written request of the holders of
Shares entitled to vote not less than twenty-five percent (25%) of all the votes
entitled to be cast at such meeting, except to the extent otherwise required by
Section 16(c) of the 1940 Act, as made applicable to the Trust by the provisions
of Section 2.3 of the Declaration. Such request shall state the purpose or
purposes of such meeting and the matters proposed to be acted on thereat. Except
to the extent otherwise required by Section 16(c) of the 1940 Act, as made
applicable to the Trust by the provisions of Section 2.3 of the Declaration, the
Secretary shall inform such Shareholders of the reasonable estimated cost of
preparing and mailing such notice of the meeting, and upon payment to the Trust
of such costs, the Secretary shall give notice stating the purpose or purposes
of the meeting to all entitled to vote at such meeting. No meeting need be
called upon the request of the holders of Shares entitled to cast less than a
majority of all votes entitled to be cast at such meeting, to consider any
matter which is substantially the same as a matter voted upon at any meeting of
Shareholders held during the preceding twelve months. 

   SECTION 3.3. NOTICE OF MEETINGS. Written or printed notice of every
Shareholders' meeting stating the place, date, and purpose or purposes thereof,
shall be given by the Secretary not less than ten (10) nor more than ninety (90)
days before such meeting to each Shareholder entitled to vote at such meeting.
Such notice shall be deemed to be given when deposited in the United States
mail, postage prepaid, directed to the Shareholder at his address as it appears
on the records of the Trust.

   SECTION 3.4 QUORUM AND ADJOURNMENT OF MEETINGS. Except as otherwise provided
by law, by the Declaration or by these By-Laws, at all meetings of Shareholders,
the holders of a majority of the Shares issued and outstanding and entitled to 
vote thereat, present in person or represented by proxy, shall be requisite

                                          

<PAGE>

and shall constitute a quorum for the transaction of business. In the absence 
of a quorum, the Shareholders present or represented by proxy and entitled 
to vote thereat shall have the power to adjourn the meeting from time to time. 
The Shareholders present in person or represented by proxy at any meeting and 
entitled to vote thereat also shall have the power to adjourn the meeting from 
time to time if the vote required to approve or reject any proposal described 
in the original notice of such meeting is not obtained (with proxies being 
voted for or against adjournment consistent with the votes for and against 
the proposal for which the required vote has not been obtained). The 
affirmative vote of the holders of a majority of the Shares then present in 
person or represented by proxy shall be required to adjourn any meeting. Any 
adjourned meeting may be reconvened without further notice or change in 
record date. At any reconvened meeting at which a quorum shall be present, 
any business may be transacted that might have been transacted at the meeting 
as originally called. 

   SECTION 3.5. VOTING RIGHTS, PROXIES. At each meeting of Shareholders, each
holder of record of Shares entitled to vote thereat shall be entitled to one
vote in person or by proxy, executed in writing by the Shareholder or his duly
authorized attorney-in-fact, for each Share of beneficial interest of the Trust
and for the fractional portion of one vote for each fractional Share entitled to
vote so registered in his name on the records of the Trust on the date fixed as
the record date for the determination of Shareholders entitled to vote at such
meeting. No proxy shall be valid after eleven months from its date, unless
otherwise provided in the proxy. At all meetings of Shareholders, unless the
voting is conducted by inspectors, all questions relating to the qualification
of voters and the validity of proxies and the acceptance or rejection of votes
shall be decided by the chairman of the meeting. Pursuant to a resolution of a
majority of the Trustees, proxies may be solicited in the name of one or more
Trustees or Officers of the Trust. 

   SECTION 3.6. VOTE REQUIRED. Except as otherwise provided by law, by the
Declaration of Trust, or by these By-Laws, at each meeting of Shareholders at
which a quorum is present, all matters shall be decided by Majority Shareholder
Vote. 

   SECTION 3.7. INSPECTORS OF ELECTION. In advance of any meeting of
Shareholders, the Trustees may appoint Inspectors of Election to act at the
meeting or any adjournment thereof. If Inspectors of Election are not so
appointed, the chairman of any meeting of Shareholders may, and on the request
of any Shareholder or his proxy shall, appoint Inspectors of Election of the
meeting. In case any person appointed as Inspector fails to appear or fails or
refuses to act, the vacancy may be filled by appointment made by the Trustees in
advance of the convening of the meeting or at the meeting by the person acting
as chairman. The Inspectors of Election shall determine the number of Shares
outstanding, the Shares represented at the meeting, the existence of a quorum,
the authenticity, validity and effect of proxies, shall receive votes, ballots
or consents, shall hear and determine all challenges and questions in any way
arising in connection with the right to vote, shall count and tabulate all votes
or consents, determine the results, and do such other acts as may be proper to
conduct the election or vote with fairness to all Shareholders. On request of
the chairman of the meeting, or of any Shareholder or his proxy, the Inspectors
of Election shall make a report in writing of any challenge or question or
matter determined by them and shall execute a certificate of any facts found by
them. 

   SECTION 3.8. INSPECTION OF BOOKS AND RECORDS. Shareholders shall have such
rights and procedures of inspection of the books and records of the Trust as are
granted to Shareholders under the Corporations and Associations Law of the State
of Maryland. 

   SECTION 3.9. ACTION BY SHAREHOLDERS WITHOUT MEETING. Except as otherwise
provided by law, the provisions of these By-Laws relating to notices and
meetings to the contrary notwithstanding, any action required or permitted to be
taken at any meeting of Shareholders may be taken without a meeting if a
majority of the Shareholders entitled to vote upon the action consent to the
action in writing and such consents are filed with the records of the Trust.
Such consent shall be treated for all purposes as a vote taken at a meeting of
Shareholders. 

   SECTION 3.10. PRESENCE AT MEETINGS. Presence at meetings of shareholders
requires physical attendance by the shareholder or his or her proxy at the
meeting site and does not encompass attendance by telephonic or other electronic
means. 

                                          2

<PAGE>

                                      ARTICLE IV
                                       TRUSTEES

   SECTION 4.1. MEETINGS OF THE TRUSTEES. The Trustees may in their discretion
provide for regular or special meetings of the Trustees. Regular meetings of the
Trustees may be held at such time and place as shall be determined from time to
time by the Trustees without further notice. Special meetings of the Trustees
may be called at any time by the President and shall be called by the President
or the Secretary upon the written request of any two (2) Trustees. 

   SECTION 4.2. NOTICE OF SPECIAL MEETINGS. Written notice of special meetings
of the Trustees, stating the place, date and time thereof, shall be given not
less than two (2) days before such meeting to each Trustee, personally, by
telegram, by mail, or by leaving such notice at his place of residence or usual
place of business. If mailed, such notice shall be deemed to be given when
deposited in the United States mail, postage prepaid, directed to the Trustee at
his address as it appears on the records of the Trust. Subject to the provisions
of the 1940 Act, notice or waiver of notice need not specify the purpose of any
special meeting. 

   SECTION 4.3. TELEPHONE MEETINGS. Subject to the provisions of the 1940 Act,
any Trustee, or any member or members of any committee designated by the
Trustees, may participate in a meeting of the Trustees, or any such committee,
as the case may be, by means of a conference telephone or similar communications
equipment if all persons participating in the meeting can hear each other at the
same time. Participation in a meeting by these means constitutes presence in
person at the meeting. 

   SECTION 4.4. QUORUM, VOTING AND ADJOURNMENT OF MEETINGS. At all meetings of
the Trustees, a majority of the Trustees shall be requisite to and shall
constitute a quorum for the transaction of business. If a quorum is present, the
affirmative vote of a majority of the Trustees present shall be the act of the
Trustees, unless the concurrence of a greater proportion is expressly required
for such action by law, the Declaration or these By-Laws. If at any meeting of
the Trustees there be less than a quorum present, the Trustees present thereat
may adjourn the meeting from time to time, without notice other than
announcement at the meeting, until a quorum shall have been obtained. 

   SECTION 4.5. ACTION BY TRUSTEES WITHOUT MEETING. The provisions of these
By-Laws covering notices and meetings to the contrary notwithstanding, and
except as required by law, any action required or permitted to be taken at any
meeting of the Trustees may be taken without a meeting if a consent in writing
setting forth the action shall be signed by all of the Trustees entitled to vote
upon the action and such written consent is filed with the minutes of
proceedings of the Trustees. 

   SECTION 4.6. EXPENSES AND FEES. Each Trustee may be allowed expenses, if any,
for attendance at each regular or special meeting of the Trustees, and each
Trustee who is not an officer or employee of the Trust or of its investment
manager or underwriter or of any corporate affiliate of any of said persons
shall receive for services rendered as a Trustee of the Trust such compensation
as may be fixed by the Trustees. Nothing herein contained shall be construed to
preclude any Trustee from serving the Trust in any other capacity and receiving
compensation therefor. 

   SECTION 4.7.  EXECUTION OF INSTRUMENTS AND DOCUMENTS AND SIGNING OF CHECKS
AND OTHER OBLIGATIONS AND TRANSFERS. All instruments, documents and other papers
shall be executed in the name and on behalf of the Trust and all checks, notes,
drafts and other obligations for the payment of money by the Trust shall be
signed, and all transfer of securities standing in the name of the Trust shall
be executed, by the Chairman, the President, any Vice President or the Treasurer
or by any one or more officers or agents of the Trust as shall be designated for
that purpose by vote of the Trustees; notwithstanding the above, nothing in this
Section 4.7 shall be deemed to preclude the electronic authorization, by
designated persons, of the Trust's Custodian (as described herein in Section
9.1) to transfer assets of the Trust, as provided for herein in Section 9.1. 

   SECTION 4.8. INDEMNIFICATION OF TRUSTEES, OFFICERS, EMPLOYEES AND AGENTS. (a)
The Trust shall indemnify any person who was or is a party or is threatened to
be made a party to any threatened, pending, or completed action, suit or
proceeding, whether civil, criminal, administrative or investigative 

                                          3

<PAGE>

(other than an action by or in the right of the Trust) by reason of the fact
that he is or was a Trustee, officer, employee, or agent of the Trust. The
indemnification shall be against expenses, including attorneys' fees, judgments,
fines, and amounts paid in settlement, actually and reasonably incurred by him
in connection with the action, suit, or proceeding, if he acted in good faith
and in a manner he reasonably believed to be in or not opposed to the best
interests of the Trust, and, with respect to any criminal action or proceeding,
had no reasonable cause to believe his conduct was unlawful. The termination of
any action, suit or proceeding by judgment, order, settlement, conviction, or
upon a plea of nolo contendere or its equivalent, shall not, of itself, create a
presumption that the person did not act in good faith and in a manner which he
reasonably believed to be in or not opposed to the best interests of the Trust,
and, with respect to any criminal action or proceeding, had reasonable cause to
believe that his conduct was unlawful. 

   (b) The Trust shall indemnify any person who was or is a party or is
threatened to be made a party to any threatened, pending or completed action or
suit by or on behalf of the Trust to obtain a judgment or decree in its favor by
reason of the fact that he is or was a Trustee, officer, employee, or agent of
the Trust. The indemnification shall be against expenses, including attorneys'
fees actually and reasonably incurred by him in connection with the defense or
settlement of the action or suit, if he acted in good faith and in a manner he
reasonably believed to be in or not opposed to the best interests of the Trust;
except that no indemnification shall be made in respect of any claim, issue, or
matter as to which the person has been adjudged to be liable for negligence or
misconduct in the performance of his duty to the Trust, except to the extent
that the court in which the action or suit was brought, or a court of equity in
the county in which the Trust has its principal office, determines upon
application that, despite the adjudication of liability but in view of all
circumstances of the case, the person is fairly and reasonably entitled to
indemnity for those expenses which the court shall deem proper, provided such
Trustee, officer, employee or agent is not adjudged to be liable by reason of
his willful misfeasance, bad faith, gross negligence or reckless disregard of
the duties involved in the conduct of his office. 

   (c) To the extent that a Trustee, officer, employee, or agent of the Trust
has been successful on the merits or otherwise in defense of any action, suit or
proceeding referred to in subsection (a) or (b) or in defense of any claim,
issue or matter therein, he shall be indemnified against expenses, including
attorneys' fees, actually and reasonably incurred by him in connection
therewith. 

   (d) (1) Unless a court orders otherwise, any indemnification under
subsections (a) or (b) of this section may be made by the Trust only as
authorized in the specific case after a determination that indemnification of
the Trustee, officer, employee, or agent is proper in the circumstances because
he has met the applicable standard of conduct set forth in subsections (a) or
(b). 

         (2) The determination shall be made:

          (i) By the Trustees, by a majority vote of a quorum which consists of
          Trustees who were not parties to the action, suit or proceeding; or 

          (ii) If the required quorum is not obtainable, or if a quorum of
          disinterested Trustees so directs, by independent legal counsel 
          in a written opinion; or 

          (iii) By the Shareholders.

         (3) Notwithstanding any provision of this Section 4.8, no person shall
       be  entitled to indemnification for any liability, whether or not there
       is an adjudication of liability, arising by reason of willful
       misfeasance, bad faith, gross negligence, or reckless disregard of duties
       as described in Section 17(h) and (i) of the Investment Company Act of
       1940 ("disabling conduct"). A person shall be deemed not liable by reason
       of disabling conduct if, either: 

          (i) a final decision on the merits is made by a court or other body
       before whom the proceeding was brought that the person to be indemnified
       ("indemnitee") was not liable by reason of disabling conduct; or 

          (ii) in the absence of such a decision, a reasonable determination,
       based upon a review of the facts, that the indemnitee was not liable by
       reason of disabling conduct, is made by either-- 

                                          4

<PAGE>

          (A) a majority of a quorum of Trustees who are neither "interested
       persons" of the Trust, as defined in Section 2(a)(19) of the Investment
       Company Act of 1940, nor parties to the action, suit or proceeding, or 

          (B) an independent legal counsel in a written opinion. 

   (e) Expenses, including attorneys' fees, incurred by a Trustee, officer, 
employee or agent of the Trust in defending a civil or criminal action, suit or
proceeding may be paid by the Trust in advance of the final disposition thereof
if: 

        (1) authorized in the specific case by the Trustees; and 

        (2) the Trust receives an undertaking by or on behalf of the Trustee, 
    officer, employee or agent of the Trust to repay the advance if it is not 
    ultimately determined that such person is entitled to be indemnified by 
    the Trust; and 

        (3) either, (i) such person provides a security for his undertaking, 
    or 

           (ii) the Trust is insured against losses by reason of any lawful 
         advances, or 

          (iii) a determination, based on a review of readily available 
         facts, that there is reason to believe that such person ultimately 
         will be found entitled to indemnification, is made by either-- 

              (A) a majority of a quorum which consists of Trustees who are 
             neither "interested persons" of the Trust, as defined in Section 
             2(a)(19) of the 1940 Act, nor parties to the action, suit or 
             proceeding, or 

              (B) an independent legal counsel in a written opinion. 

   (f) The indemnification provided by this Section shall not be deemed
exclusive of any other rights to which a person may be entitled under any
by-law, agreement, vote of Shareholders or disinterested Trustees or otherwise,
both as to action in his official capacity and as to action in another capacity
while holding the office, and shall continue as to a person who has ceased to be
a Trustee, officer, employee, or agent and inure to the benefit of the heirs,
executors and administrators of such person; provided that no person may satisfy
any right of indemnity or reimbursement granted herein or to which he may be
otherwise entitled except out of the property of the Trust, and no Shareholder
shall be personally liable with respect to any claim for indemnity or
reimbursement or otherwise. 

   (g) The Trust may purchase and maintain insurance on behalf of any person who
is or was a Trustee, officer, employee, or agent of the Trust, against any
liability asserted against him and incurred by him in any such capacity, or
arising out of his status as such. However, in no event will the Trust purchase
insurance to indemnify any officer or Trustee against liability for any act for
which the Trust itself is not permitted to indemnify him. 

   (h) Nothing contained in this Section shall be construed to protect any
Trustee or officer of the Trust against any liability to the Trust or to its
security holders to which he would otherwise be subject by reason of willful
misfeasance, bad faith, gross negligence or reckless disregard of the duties
involved in the conduct of his office. 

                                      ARTICLE V
                                      COMMITTEES

   SECTION 5.1. EXECUTIVE AND OTHER COMMITTEES. The Trustees, by resolution
adopted by a majority of the Trustees, may designate an Executive Committee
and/or committees, each committee to consist of two (2) or more of the Trustees
of the Trust and may delegate to such committees, in the intervals between
meetings of the Trustees, any or all of the powers of the Trustees in the
management of the business and affairs of the Trust. In the absence of any
member of any such committee, the members thereof present at any meeting,
whether or not they constitute a quorum, may appoint a Trustee to act in place
of such absent member. Each such committee shall keep a record of its
proceedings. 


                                          5

<PAGE>

   The Executive Committee and any other committee shall fix its own rules or
procedure, but the presence of at least fifty percent (50%) of the members of
the whole committee shall in each case be necessary to constitute a quorum of
the committee and the affirmative vote of the majority of the members of the
committee present at the meeting shall be necessary to take action. 

   All actions of the Executive Committee shall be reported to the Trustees at
the meeting thereof next succeeding to the taking of such action. 

   SECTION 5.2. ADVISORY COMMITTEE. The Trustees may appoint an advisory
committee which shall be composed of persons who do not serve the Trust in any
other capacity and which shall have advisory functions with respect to the
investments of the Trust but which shall have no power to determine that any
security or other investment shall be purchased, sold or otherwise disposed of
by the Trust. The number of persons constituting any such advisory committee
shall be determined from time to time by the Trustees. The members of any such
advisory committee may receive compensation for their services and may be
allowed such fees and expenses for the attendance at meetings as the Trustees
may from time to time determine to be appropriate.


   SECTION 5.3. COMMITTEE ACTION WITHOUT MEETING. The provisions of these 
By-Laws covering notices and meetings to the contrary notwithstanding, and 
except as required by law, any action required or permitted to be taken at 
any meeting of any Committee of the Trustees appointed pursuant to Section 5.1 
of these By-Laws may be taken without a meeting if a consent in writing 
setting forth the action shall be signed by all members of the Committee 
entitled to vote upon the action and such written consent is filed with the 
records of the proceedings of the Committee. 

                                      ARTICLE VI
                                       OFFICERS

   SECTION 6.1. EXECUTIVE OFFICERS. The executive officers of the Trust shall be
a Chairman, a President, one or more Vice Presidents, a Secretary and a
Treasurer. The Chairman shall be selected from among the Trustees but none of
the other executive officers need be a Trustee. Two or more offices, except
those of President and any Vice President, may be held by the same person, but
no officer shall execute, acknowledge or verify any instrument in more than one
capacity. The executive officers of the Trust shall be elected annually by the
Trustees and each executive officer so elected shall hold office until his
successor is elected and has qualified. 

   SECTION 6.2. OTHER OFFICERS AND AGENTS. The Trustees may also elect one or
more Assistant Vice Presidents, Assistant Secretaries and Assistant Treasurers
and may elect, or may delegate to the President the power to appoint, such other
officers and agents as the Trustees shall at any time or from time to time deem
advisable. 

   SECTION 6.3. TERM AND REMOVAL AND VACANCIES. Each officer of the Trust shall
hold office until his successor is elected and has qualified. Any officer or
agent of the Trust may be removed by the Trustees whenever, in their judgment,
the best interests of the Trust will be served thereby, but such removal shall
be without prejudice to the contractual rights, if any, of the person so
removed. 

   SECTION 6.4. COMPENSATION OF OFFICERS. The compensation of officers and
agents of the Trust shall be fixed by the Trustees, or by the President to the
extent provided by the Trustees with respect to officers appointed by the
President. 

   SECTION 6.5. POWER AND DUTIES. All officers and agents of the Trust, as
between themselves and the Trust, shall have such authority and perform such
duties in the management of the Trust as may be provided in or pursuant to these
By-Laws, or to the extent not so provided, as may be prescribed by the Trustees;
provided, that no rights of any third party shall be affected or impaired by any
such By-Law or resolution of the Trustees unless he has knowledge thereof. 

   SECTION 6.6. THE CHAIRMAN. The Chairman shall preside at all meetings of the
Shareholders and of the Trustees, shall be a signatory on all Annual and
Semi-Annual Reports as may be sent to shareholders, and he shall perform such
other duties as the Trustees may from time to time prescribe. 


                                          6

<PAGE>

   SECTION 6.7. THE PRESIDENT. (a) The President shall be the chief executive
officer of the Trust; he shall have general and active management of the
business of the Trust, shall see that all orders and resolutions of the Board of
Trustees are carried into effect, and, in connection therewith, shall be
authorized to delegate to one or more Vice Presidents such of his powers and
duties at such times and in such manner as he may deem advisable. 

   (b) In the absence of the Chairman, the President shall preside at all
meetings of the shareholders and the Board of Trustees; and he shall perform
such other duties as the Board of Trustees may from time to time prescribe. 

   SECTION 6.8. THE VICE PRESIDENTS. The Vice Presidents shall be of such number
and shall have such titles as may be determined from time to time by the
Trustees. The Vice President, or, if there be more than one, the Vice Presidents
in the order of their seniority as may be determined from time to time by the
Trustees or the President, shall, in the absence or disability of the President,
exercise the powers and perform the duties of the President, and he or they
shall perform such other duties as the Trustees or the President may from time
to time prescribe. 

   SECTION 6.9. THE ASSISTANT VICE PRESIDENTS. The Assistant Vice President, or,
if there be more than one, the Assistant Vice Presidents, shall perform such
duties and have such powers as may be assigned them from time to time by the
Trustees or the President. 

   SECTION 6.10. THE SECRETARY. The Secretary shall attend all meetings of the
Trustees and all meetings of the Shareholders and record all the proceedings of
the meetings of the Shareholders and of the Trustees in a book to be kept for
that purpose, and shall perform like duties for the standing committees when
required. He shall give, or cause to be given, notice of all meetings of the
Shareholders and special meetings of the Trustees, and shall perform such other
duties and have such powers as the Trustees, or the President, may from time to
time prescribe. He shall keep in safe custody the seal of the Trust and affix or
cause the same to be affixed to any instrument requiring it, and, when so
affixed, it shall be attested by his signature or by the signature of an
Assistant Secretary. 

   SECTION 6.11. THE ASSISTANT SECRETARIES. The Assistant Secretary, or, if
there be more than one, the Assistant Secretaries in the order determined by the
Trustees or the President, shall, in the absence or disability of the Secretary,
perform the duties and exercise the powers of the Secretary and shall perform
such duties and have such other powers as the Trustees or the President may from
time to time prescribe. 

   SECTION 6.12. THE TREASURER. The Treasurer shall be the chief financial
officer of the Trust. He shall keep or cause to be kept full and accurate
accounts of receipts and disbursements in books belonging to the Trust, and he
shall render to the Trustees and the President, whenever any of them require it,
an account of his transactions as Treasurer and of the financial condition of
the Trust; and he shall perform such other duties as the Trustees, or the
President, may from time to time prescribe. 

   SECTION 6.13. THE ASSISTANT TREASURERS. The Assistant Treasurer, or, if there
shall be more than one, the Assistant Treasurers in the order determined by the
Trustees or the President, shall, in the absence or disability of the Treasurer,
perform the duties and exercise the powers of the Treasurer and shall perform
such other duties and have such other powers as the Trustees, or the President,
may from time to time prescribe. 

   SECTION 6.14. DELEGATION OF DUTIES. Whenever an officer is absent or
disabled, or whenever for any reason the Trustees may deem it desirable, the
Trustees may delegate the powers and duties of an officer or officers to any
other officer or officers or to any Trustee or Trustees. 

                                     ARTICLE VII
                             DIVIDENDS AND DISTRIBUTIONS

   Subject to any applicable provisions of law and the Declaration, dividends
and distributions upon the Shares may be declared at such intervals as the
Trustees may determine, in cash, in securities or other property, or in Shares,
from any sources permitted by law, all as the Trustees shall from time to time
determine. 


                                          7

<PAGE>

   Inasmuch as the computation of net income and net profits from the sales of
securities or other properties for federal income tax purposes may vary from the
computation thereof on the records of the Trust, the Trustees shall have power,
in their discretion, to distribute as income dividends and as capital gain
distributions, respectively, amounts sufficient to enable the Trust to avoid or
reduce liability for federal income taxes. 

                                     ARTICLE VIII
                                CERTIFICATES OF SHARES

   SECTION 8.1. CERTIFICATES OF SHARES. Certificates for Shares of each series
or class of Shares shall be in such form and of such design as the Trustees
shall approve, subject to the right of the Trustees to change such form and
design at any time or from time to time, and shall be entered in the records of
the Trust as they are issued. Each such certificate shall bear a distinguishing
number; shall exhibit the holder's name and certify the number of full Shares
owned by such holder; shall be signed by or in the name of the Trust by the
President, or a Vice President, and countersigned by the Secretary or an
Assistant Secretary or the Treasurer and an Assistant Treasurer of the Trust;
shall be sealed with the seal; and shall contain such recitals as may be
required by law. Where any certificate is signed by a Transfer Agent or by a
Registrar, the signature of such officers and the seal may be facsimile, printed
or engraved. The Trust may, at its option, determine not to issue a certificate
or certificates to evidence Shares owned of record by any Shareholder. 

   In case any officer or officers who shall have signed, or whose facsimile
signature or signatures shall appear on, any such certificate or certificates
shall cease to be such officer or officers of the Trust, whether because of
death, resignation or otherwise, before such certificate or certificates shall
have been delivered by the Trust, such certificate or certificates shall,
nevertheless, be adopted by the Trust and be issued and delivered as though the
person or persons who signed such certificate or certificates or whose facsimile
signature or signatures shall appear therein had not ceased to be such officer
or officers of the Trust. 

   No certificate shall be issued for any share until such share is fully paid. 

   SECTION 8.2. LOST, STOLEN, DESTROYED AND MUTILATED CERTIFICATES. The Trustees
may direct a new certificate or certificates to be issued in place of any
certificate or certificates theretofore issued by the Trust alleged to have been
lost, stolen or destroyed, upon satisfactory proof of such loss, theft, or
destruction; and the Trustees may, in their discretion, require the owner of the
lost, stolen or destroyed certificate, or his legal representative, to give to
the Trust and to such Registrar, Transfer Agent and/or Transfer Clerk as may be
authorized or required to countersign such new certificate or certificates, a
bond in such sum and of such type as they may direct, and with such surety or
sureties, as they may direct, as indemnity against any claim that may be against
them or any of them on account of or in connection with the alleged loss, theft
or destruction of any such certificate. 

                                      ARTICLE IX
                                      CUSTODIAN

   SECTION 9.1. APPOINTMENT AND DUTIES. The Trust shall at times employ a bank
or trust company having capital, surplus and undivided profits of at least five
million dollars ($5,000,000) as custodian with authority as its agent, but
subject to such restrictions, limitations and other requirements, if any, as may
be contained in these By-Laws and the 1940 Act: 

     (1) to receive and hold the securities owned by the Trust and deliver    
the same upon written or electronically transmitted order; 

     (2) to receive and receipt for any moneys due to the Trust and deposit 
    the same in its own banking department or elsewhere as the Trustees may 
    direct; 

     (3) to disburse such funds upon orders or vouchers; 


                                          8

<PAGE>

all upon such basis of compensation as may be agreed upon between the Trustees
and the custodian. If so directed by a Majority Shareholder Vote, the custodian
shall deliver and pay over all property of the Trust held by it as specified in
such vote. 

   The Trustees may also authorize the custodian to employ one or more
sub-custodians from time to time to perform such of the acts and services of the
custodian and upon such terms and conditions as may be agreed upon between the
custodian and such sub-custodian and approved by the Trustees. 

   SECTION 9.2. CENTRAL CERTIFICATE SYSTEM. Subject to such rules, regulations
and orders as the Commission may adopt, the Trustees may direct the custodian to
deposit all or any part of the securities owned by the Trust in a system for the
central handling of securities established by a national securities exchange or
a national securities association registered with the Commission under the
Securities Exchange Act of 1934, or such other person as may be permitted by the
Commission, or otherwise in accordance with the 1940 Act, pursuant to which
system all securities of any particular class or series of any issuer deposited
within the system are treated as fungible and may be transferred or pledged by
bookkeeping entry without physical delivery of such securities, provided that
all such deposits shall be subject to withdrawal only upon the order of the
Trust. 

                                      ARTICLE X
                                   WAIVER OF NOTICE

   Whenever any notice of the time, place or purpose of any meeting of
Shareholders, Trustees, or of any committee is required to be given in
accordance with law or under the provisions of the Declaration or these By-Laws,
a waiver thereof in writing, signed by the person or persons entitled to such
notice and filed with the records of the meeting, whether before or after the
holding thereof, or actual attendance at the meeting of shareholders, Trustees
or committee, as the case may be, in person, shall be deemed equivalent to the
giving of such notice to such person. 

                                      ARTICLE XI
                                    MISCELLANEOUS

   SECTION 11.1. LOCATION OF BOOKS AND RECORDS. The books and records of the
Trust may be kept outside the Commonwealth of Massachusetts at such place or
places as the Trustees may from time to time determine, except as otherwise
required by law. 

   SECTION 11.2 RECORD DATE. The Trustees may fix in advance a date as the
record date for the purpose of determining the Shareholders entitled to (i)
receive notice of, or to vote at, any meeting of Shareholders, or (ii) receive
payment of any dividend or the allotment of any rights, or in order to make a
determination of Shareholders for any other proper purpose. The record date, in
any case, shall not be more than one hundred eighty (180) days, and in the case
of a meeting of Shareholders not less than ten (10) days, prior to the date on
which such meeting is to be held or the date on which such other particular
action requiring determination of Shareholders is to be taken, as the case may
be. In the case of a meeting of Shareholders, the meeting date set forth in the
notice to Shareholders accompanying the proxy statement shall be the date used
for purposes of calculating the 180 day or 10 day period, and any adjourned
meeting may be reconvened without a change in record date. In lieu of fixing a
record date, the Trustees may provide that the transfer books shall be closed
for a stated period but not to exceed, in any case, twenty (20) days. If the
transfer books are closed for the purpose of determining Shareholders entitled
to notice of a vote at a meeting of Shareholders, such books shall be closed for
at least ten (10) days immediately preceding the meeting. 

   SECTION 11.3. SEAL. The Trustees shall adopt a seal, which shall be in such
form and shall have such inscription thereon as the Trustees may from time to
time provide. The seal of the Trust may be affixed to any document, and the seal
and its attestation may be lithographed, engraved or otherwise printed on any
document with the same force and effect as if it had been imprinted and attested
manually in the same manner and with the same effect as if done by a
Massachusetts business corporation under Massachusetts law. 


                                          9

<PAGE>

   SECTION 11.4. FISCAL YEAR. The fiscal year of the Trust shall end on such
date as the Trustees may by resolution specify, and the Trustees may by
resolution change such date for future fiscal years at any time and from time to
time. 

   SECTION 11.5. ORDERS FOR PAYMENT OF MONEY. All orders or instructions for the
payment of money of the Trust, and all notes or other evidences of indebtedness
issued in the name of the Trust, shall be signed by such officer or officers or
such other person or persons as the Trustees may from time to time designate, or
as may be specified in or pursuant to the agreement between the Trust and the
bank or trust company appointed as Custodian of the securities and funds of the
Trust. 

                                     ARTICLE XII
                         COMPLIANCE WITH FEDERAL REGULATIONS

   The Trustees are hereby empowered to take such action as they may deem to be
necessary, desirable or appropriate so that the Trust is or shall be in
compliance with any federal or state statute, rule or regulation with which
compliance by the Trust is required. 

                                     ARTICLE XIII
                                      AMENDMENTS

   These By-Laws may be amended, altered, or repealed, or new By-Laws may be
adopted, (a) by a Majority Shareholder Vote, or (b) by the Trustees; provided,
however, that no By-Law may be amended, adopted or repealed by the Trustees if
such amendment, adoption or repeal requires, pursuant to law, the Declaration,
or these By-Laws, a vote of the Shareholders. The Trustees shall in no event
adopt By-Laws which are in conflict with the Declaration, and any apparent
inconsistency shall be construed in favor of the related provisions in the
Declaration. 

                                     ARTICLE XIV
                                 DECLARATION OF TRUST

   The Declaration of Trust establishing Dean Witter Utilities Fund, dated
December 8, 1987, a copy of which is on file in the office of the Secretary of
the Commonwealth of Massachusetts, provides that the name Dean Witter Utilities
Fund refers to the Trustees under the Declaration collectively as Trustees, but
not as individuals or personally; and no Trustee, Shareholder, officer, employee
or agent of Dean Witter Utilities Fund shall be held to any personal liability,
nor shall resort be had to their private property for the satisfaction of any
obligation or claim or otherwise, in connection with the affairs of said Dean
Witter Utilities Fund, but the Trust Estate only shall be liable. 


                                          10
  

<PAGE>
                              AMENDED AND RESTATED
                     TRANSFER AGENCY AND SERVICE AGREEMENT

                                      WITH

                             DEAN WITTER TRUST FSB

[open-end funds]

97NYC13142
<PAGE>
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                      PAGE
                                                                      ----
<S>          <C>                                                      <C>
Article 1    Terms of Appointment...................................    1
 
Article 2    Fees and Expenses......................................    2
 
Article 3    Representations and Warranties of DWTFSB...............    3
 
Article 4    Representations and Warranties of the Fund.............    3
 
Article 5    Duty of Care and Indemnification.......................    3
 
Article 6    Documents and Covenants of the Fund and DWTFSB.........    4
 
Article 7    Duration and Termination of Agreement..................    5
 
Article 8    Assignment.............................................    5
 
Article 9    Affiliations...........................................    6
 
Article 10   Amendment..............................................    6
 
Article 11   Applicable Law.........................................    6
 
Article 12   Miscellaneous..........................................    6
 
Article 13   Merger of Agreement....................................    7
 
Article 14   Personal Liability.....................................    7
</TABLE>


                                       i
<PAGE>

           AMENDED AND RESTATED TRANSFER AGENCY AND SERVICE AGREEMENT

    AMENDED AND RESTATED AGREEMENT made as of the 23rd day of October, 1997 by
and between each of the Funds listed on the signature pages hereof, each of such
Funds acting severally on its own behalf and not jointly with any of such other
Funds (each such Fund hereinafter referred to as the "Fund"), each such Fund
having its principal office and place of business at Two World Trade Center, New
York, New York, 10048, and DEAN WITTER TRUST FSB ("DWTFSB"), a federally
chartered savings bank, having its principal office and place of business at
Harborside Financial Center, Plaza Two, Jersey City, New Jersey 07311.
 
    WHEREAS, the Fund desires to appoint DWTFSB as its transfer agent, dividend
disbursing agent and shareholder servicing agent and DWTFSB desires to accept
such appointment;
 
    NOW THEREFORE, in consideration of the mutual covenants herein contained,
the parties hereto agree as follows:
 
Article 1  TERMS OF APPOINTMENT; DUTIES OF DWTFSB
 
    1.1 Subject to the terms and conditions set forth in this Agreement, the
Fund hereby employs and appoints DWTFSB to act as, and DWTFSB agrees to act as,
the transfer agent for each series and class of shares of the Fund, whether now
or hereafter authorized or issued ("Shares"), dividend disbursing agent and
shareholder servicing agent in connection with any accumulation, open-account or
similar plans provided to the holders of such Shares ("Shareholders") and set
out in the currently effective prospectus and statement of additional
information ("prospectus") of the Fund, including without limitation any
periodic investment plan or periodic withdrawal program.
 
    1.2 DWTFSB agrees that it will perform the following services:
 
        (a) In accordance with procedures established from time to time by
    agreement between the Fund and DWTFSB, DWTFSB shall:
 
           (i) Receive for acceptance, orders for the purchase of Shares, and
       promptly deliver payment and appropriate documentation therefor to the
       custodian of the assets of the Fund (the "Custodian");
 
           (ii) Pursuant to purchase orders, issue the appropriate number of
       Shares and issue certificates therefor or hold such Shares in book form
       in the appropriate Shareholder account;
 
           (iii) Receive for acceptance redemption requests and redemption
       directions and deliver the appropriate documentation therefor to the
       Custodian;
 
           (iv) At the appropriate time as and when it receives monies paid to
       it by the Custodian with respect to any redemption, pay over or cause to
       be paid over in the appropriate manner such monies as instructed by the
       redeeming Shareholders;
 
           (v) Effect transfers of Shares by the registered owners thereof upon
       receipt of appropriate instructions;
 
           (vi) Prepare and transmit payments for dividends and distributions
       declared by the Fund;
 
           (vii) Calculate any sales charges payable by a Shareholder on
       purchases and/or redemptions of Shares of the Fund as such charges may be
       reflected in the prospectus;
 
           (viii) Maintain records of account for and advise the Fund and its
       Shareholders as to the foregoing; and
 
           (ix) Record the issuance of Shares of the Fund and maintain pursuant
       to Rule 17Ad-10(e) under the Securities Exchange Act of 1934 ("1934 Act")
       a record of the total number of Shares of the Fund which are authorized,
       based upon data provided to it by the Fund, and issued and outstanding.
       DWTFSB shall also provide to the Fund on a regular basis the total number
       of Shares that are authorized, issued and outstanding and shall notify
       the Fund in case any proposed issue of Shares by the Fund would result in
       an overissue. In case any issue of Shares


                                       1
<PAGE>

       would result in an overissue, DWTFSB shall refuse to issue such Shares
       and shall not countersign and issue any certificates requested for such
       Shares. When recording the issuance of Shares, DWTFSB shall have no
       obligation to take cognizance of any Blue Sky laws relating to the issue
       of sale of such Shares, which functions shall be the sole responsibility
       of the Fund.
 
       (b) In addition to and not in lieu of the services set forth in the
    above paragraph (a), DWTFSB shall:
 
           (i) perform all of the customary services of a transfer agent,
       dividend disbursing agent and, as relevant, shareholder servicing agent
       in connection with dividend reinvestment, accumulation, open-account or
       similar plans (including without limitation any periodic investment plan
       or periodic withdrawal program), including but not limited to,
       maintaining all Shareholder accounts, preparing Shareholder meeting
       lists, mailing proxies, receiving and tabulating proxies, mailing
       shareholder reports and prospectuses to current Shareholders, withholding
       taxes on U.S. resident and non-resident alien accounts, preparing and
       filing appropriate forms required with respect to dividends and
       distributions by federal tax authorities for all Shareholders, preparing
       and mailing confirmation forms and statements of account to Shareholders
       for all purchases and redemptions of Shares and other confirmable
       transactions in Shareholder accounts, preparing and mailing activity
       statements for Shareholders and providing Shareholder account
       information;
 
           (ii) open any and all bank accounts which may be necessary or
       appropriate in order to provide the foregoing services; and
 
           (iii) provide a system that will enable the Fund to monitor the total
       number of Shares sold in each State or other jurisdiction.
 
       (c) In addition, the Fund shall:
 
           (i) identify to DWTFSB in writing those transactions and assets to be
       treated as exempt from Blue Sky reporting for each State; and
 
           (ii) verify the inclusion on the system prior to activation of each
       State in which Fund shares may be sold and thereafter monitor the daily
       purchases and sales for shareholders in each State. The responsibility of
       DWTFSB for the Fund's status under the securities laws of any State or
       other jurisdiction is limited to the inclusion on the system of each
       State as to which the Fund has informed DWTFSB that shares may be sold in
       compliance with state securities laws and the reporting of purchases and
       sales in each such State to the Fund as provided above and as agreed from
       time to time by the Fund and DWTFSB.
 
       (d) DWTFSB shall provide such additional services and functions not
    specifically described herein as may be mutually agreed between DWTFSB and
    the Fund. Procedures applicable to such services may be established from
    time to time by agreement between the Fund and DWTFSB.
 
Article 2  FEES AND EXPENSES
 
    2.1 For performance by DWTFSB pursuant to this Agreement, each Fund agrees
to pay DWTFSB an annual maintenance fee for each Shareholder account and certain
transactional fees, if applicable, as set out in the respective fee schedule
attached hereto as Schedule A. Such fees and out-of-pocket expenses and advances
identified under Section 2.2 below may be changed from time to time subject to
mutual written agreement between the Fund and DWTFSB.
 
    2.2 In addition to the fees paid under Section 2.1 above, the Fund agrees to
reimburse DWTFSB for out of pocket expenses in connection with the services
rendered by DWTFSB hereunder. In addition, any other expenses incurred by DWTFSB
at the request or with the consent of the Fund will be reimbursed by the Fund.
 
    2.3 The Fund agrees to pay all fees and reimbursable expenses within a
reasonable period of time following the mailing of the respective billing
notice. Postage for mailing of dividends, proxies, Fund reports and other
mailings to all Shareholder accounts shall be advanced to DWTFSB by the Fund
upon request prior to the mailing date of such materials.


                                       2

<PAGE>

Article 3  REPRESENTATIONS AND WARRANTIES OF DWTFSB
 
    DWTFSB represents and warrants to the Fund that:
 
    3.1 It is a federally chartered savings bank whose principal office is in
New Jersey.
 
    3.2 It is and will remain registered with the U.S. Securities and Exchange
Commission ("SEC") as a Transfer Agent pursuant to the requirements of Section
17A of the 1934 Act.
 
    3.3 It is empowered under applicable laws and by its charter and By-Laws to
enter into and perform this Agreement.
 
    3.4 All requisite corporate proceedings have been taken to authorize it to
enter into and perform this Agreement.
 
    3.5 It has and will continue to have access to the necessary facilities,
equipment and personnel to perform its duties and obligations under this
Agreement.
 
Article 4  REPRESENTATIONS AND WARRANTIES OF THE FUND
 
    The Fund represents and warrants to DWTFSB that:
 
    4.1 It is a corporation duly organized and existing and in good standing
under the laws of Delaware or Maryland or a trust duly organized and existing
and in good standing under the laws of Massachusetts, as the case may be.
 
    4.2 It is empowered under applicable laws and by its Articles of
Incorporation or Declaration of Trust, as the case may be, and under its By-Laws
to enter into and perform this Agreement.
 
    4.3 All corporate proceedings necessary to authorize it to enter into and
perform this Agreement have been taken.
 
    4.4 It is an investment company registered with the SEC under the Investment
Company Act of 1940, as amended (the "1940 Act").
 
    4.5 A registration statement under the Securities Act of 1933 (the "1933
Act") is currently effective and will remain effective, and appropriate state
securities law filings have been made and will continue to be made, with respect
to all Shares of the Fund being offered for sale.
 
Article 5  DUTY OF CARE AND INDEMNIFICATION
 
    5.1 DWTFSB shall not be responsible for, and the Fund shall indemnify and
hold DWTFSB harmless from and against, any and all losses, damages, costs,
charges, counsel fees, payments, expenses and liability arising out of or
attributable to:
 
        (a) All actions of DWTFSB or its agents or subcontractors required to be
    taken pursuant to this Agreement, provided that such actions are taken in
    good faith and without negligence or willful misconduct.
 
        (b) The Fund's refusal or failure to comply with the terms of this
    Agreement, or which arise out of the Fund's lack of good faith, negligence
    or willful misconduct or which arise out of breach of any representation or
    warranty of the Fund hereunder.
 
        (c) The reliance on or use by DWTFSB or its agents or subcontractors of
    information, records and documents which (i) are received by DWTFSB or its
    agents or subcontractors and furnished to it by or on behalf of the Fund,
    and (ii) have been prepared and/or maintained by the Fund or any other
    person or firm on behalf of the Fund.
 
        (d) The reliance on, or the carrying out by DWTFSB or its agents or
    subcontractors of, any instructions or requests of the Fund.
 
        (e) The offer or sale of Shares in violation of any requirement under
    the federal securities laws or regulations or the securities or Blue Sky
    laws of any State or other jurisdiction that notice of


                                       3

<PAGE>

    offering of such Shares in such State or other jurisdiction or in violation
    of any stop order or other determination or ruling by any federal agency or
    any State or other jurisdiction with respect to the offer or sale of such
    Shares in such State or other jurisdiction.
 
    5.2 DWTFSB shall indemnify and hold the Fund harmless from or against any
and all losses, damages, costs, charges, counsel fees, payments, expenses and
liability arising out of or attributable to any action or failure or omission to
act by DWTFSB as a result of the lack of good faith, negligence or willful
misconduct of DWTFSB, its officers, employees or agents.
 
    5.3 At any time, DWTFSB may apply to any officer of the Fund for
instructions, and may consult with legal counsel to the Fund, with respect to
any matter arising in connection with the services to be performed by DWTFSB
under this Agreement, and DWTFSB and its agents or subcontractors shall not be
liable and shall be indemnified by the Fund for any action taken or omitted by
it in reliance upon such instructions or upon the opinion of such counsel.
DWTFSB, its agents and subcontractors shall be protected and indemnified in
acting upon any paper or document furnished by or on behalf of the Fund,
reasonably believed to be genuine and to have been signed by the proper person
or persons, or upon any instruction, information, data, records or documents
provided to DWTFSB or its agents or subcontractors by machine readable input,
telex, CRT data entry or other similar means authorized by the Fund, and shall
not be held to have notice of any change of authority of any person, until
receipt of written notice thereof from the Fund. DWTFSB, its agents and
subcontractors shall also be protected and indemnified in recognizing stock
certificates which are reasonably believed to bear the proper manual or
facsimile signature of the officers of the Fund, and the proper countersignature
of any former transfer agent or registrar, or of a co-transfer agent or
co-registrar.
 
    5.4 In the event either party is unable to perform its obligations under the
terms of this Agreement because of acts of God, strikes, equipment or
transmission failure or damage reasonably beyond its control, or other causes
reasonably beyond its control, such party shall not be liable for damages to the
other for any damages resulting from such failure to perform or otherwise from
such causes.
 
    5.5 Neither party to this Agreement shall be liable to the other party for
consequential damages under any provision of this Agreement or for any act or
failure to act hereunder.
 
    5.6 In order that the indemnification provisions contained in this Article 5
shall apply, upon the assertion of a claim for which either party may be
required to indemnify the other, the party seeking indemnification shall
promptly notify the other party of such assertion, and shall keep the other
party advised with respect to all developments concerning such claim. The party
who may be required to indemnify shall have the option to participate with the
party seeking indemnification in the defense of such claim. The party seeking
indemnification shall in no case confess any claim or make any compromise in any
case in which the other party may be required to indemnify it except with the
other party's prior written consent.
 
Article 6  DOCUMENTS AND COVENANTS OF THE FUND AND DWTFSB
 
    6.1 The Fund shall promptly furnish to DWTFSB the following, unless
previously furnished to Dean Witter Trust Company, the prior transfer agent of
the Fund:
 
        (a) If a corporation:
 
           (i) A certified copy of the resolution of the Board of Directors of
       the Fund authorizing the appointment of DWTFSB and the execution and
       delivery of this Agreement;
 
           (ii) A certified copy of the Articles of Incorporation and By-Laws of
       the Fund and all amendments thereto;
 
           (iii) Certified copies of each vote of the Board of Directors
       designating persons authorized to give instructions on behalf of the Fund
       and signature cards bearing the signature of any officer of the Fund or
       any other person authorized to sign written instructions on behalf of the
       Fund;
 
           (iv) A specimen of the certificate for Shares of the Fund in the form
       approved by the Board of Directors, with a certificate of the Secretary
       of the Fund as to such approval;


                                       4

<PAGE>

       (b) If a business trust:
 
           (i) A certified copy of the resolution of the Board of Trustees of
       the Fund authorizing the appointment of DWTFSB and the execution and
       delivery of this Agreement;
 
           (ii) A certified copy of the Declaration of Trust and By-Laws of the
       Fund and all amendments thereto;
 
           (iii) Certified copies of each vote of the Board of Trustees
       designating persons authorized to give instructions on behalf of the Fund
       and signature cards bearing the signature of any officer of the Fund or
       any other person authorized to sign written instructions on behalf of the
       Fund;
 
           (iv) A specimen of the certificate for Shares of the Fund in the form
       approved by the Board of Trustees, with a certificate of the Secretary of
       the Fund as to such approval;
 
       (c) The current registration statements and any amendments and
    supplements thereto filed with the SEC pursuant to the requirements of the
    1933 Act or the 1940 Act;
 
       (d) All account application forms or other documents relating to
    Shareholder accounts and/or relating to any plan, program or service offered
    or to be offered by the Fund; and
 
       (e) Such other certificates, documents or opinions as DWTFSB deems to be
    appropriate or necessary for the proper performance of its duties.
 
    6.2 DWTFSB hereby agrees to establish and maintain facilities and procedures
reasonably acceptable to the Fund for safekeeping of Share certificates, check
forms and facsimile signature imprinting devices, if any; and for the
preparation or use, and for keeping account of, such certificates, forms and
devices.
 
    6.3 DWTFSB shall prepare and keep records relating to the services to be
performed hereunder, in the form and manner as it may deem advisable and as
required by applicable laws and regulations. To the extent required by Section
31 of the 1940 Act, and the rules and regulations thereunder, DWTFSB agrees that
all such records prepared or maintained by DWTFSB relating to the services
performed by DWTFSB hereunder are the property of the Fund and will be
preserved, maintained and made available in accordance with such Section 31 of
the 1940 Act, and the rules and regulations thereunder, and will be surrendered
promptly to the Fund on and in accordance with its request.
 
    6.4 DWTFSB and the Fund agree that all books, records, information and data
pertaining to the business of the other party which are exchanged or received
pursuant to the negotiation or the carrying out of this Agreement shall remain
confidential and shall not be voluntarily disclosed to any other person except
as may be required by law or with the prior consent of DWTFSB and the Fund.
 
    6.5 In case of any request or demands for the inspection of the Shareholder
records of the Fund, DWTFSB will endeavor to notify the Fund and to secure
instructions from an authorized officer of the Fund as to such inspection.
DWTFSB reserves the right, however, to exhibit the Shareholder records to any
person whenever it is advised by its counsel that it may be held liable for the
failure to exhibit the Shareholder records to such person.
 
Article 7  DURATION AND TERMINATION OF AGREEMENT
 
    7.1 This Agreement shall remain in full force and effect until August 1,
2000 and from year-to-year thereafter unless terminated by either party as
provided in Section 7.2 hereof.
 
    7.2 This Agreement may be terminated by the Fund on 60 days written notice,
and by DWTFSB on 90 days written notice, to the other party without payment of
any penalty.
 
    7.3 Should the Fund exercise its right to terminate, all out-of-pocket
expenses associated with the movement of records and other materials will be
borne by the Fund. Additionally, DWTFSB reserves the right to charge for any
other reasonable fees and expenses associated with such termination.
 
Article 8  ASSIGNMENT
 
    8.1 Except as provided in Section 8.3 below, neither this Agreement nor any
rights or obligations hereunder may be assigned by either party without the
written consent of the other party.


                                       5

<PAGE>

    8.2 This Agreement shall inure to the benefit of and be binding upon the
parties and their respective permitted successors and assigns.
 
    8.3 DWTFSB may, in its sole discretion and without further consent by the
Fund, subcontract, in whole or in part, for the performance of its obligations
and duties hereunder with any person or entity including but not limited to
companies which are affiliated with DWTFSB; PROVIDED, HOWEVER, that such person
or entity has and maintains the qualifications, if any, required to perform such
obligations and duties, and that DWTFSB shall be as fully responsible to the
Fund for the acts and omissions of any agent or subcontractor as it is for its
own acts or omissions under this Agreement.
 
Article 9  AFFILIATIONS
 
    9.1 DWTFSB may now or hereafter, without the consent of or notice to the
Fund, function as transfer agent and/or shareholder servicing agent for any
other investment company registered with the SEC under the 1940 Act and for any
other issuer, including without limitation any investment company whose adviser,
administrator, sponsor or principal underwriter is or may become affiliated with
Morgan Stanley, Dean Witter, Discover & Co. or any of its direct or indirect
subsidiaries or affiliates.
 
    9.2 It is understood and agreed that the Directors or Trustees (as the case
may be), officers, employees, agents and shareholders of the Fund, and the
directors, officers, employees, agents and shareholders of the Fund's investment
adviser and/or distributor, are or may be interested in DWTFSB as directors,
officers, employees, agents and shareholders or otherwise, and that the
directors, officers, employees, agents and shareholders of DWTFSB may be
interested in the Fund as Directors or Trustees (as the case may be), officers,
employees, agents and shareholders or otherwise, or in the investment adviser
and/or distributor as directors, officers, employees, agents, shareholders or
otherwise.
 
Article 10  AMENDMENT
 
    10.1 This Agreement may be amended or modified by a written agreement
executed by both parties and authorized or approved by a resolution of the Board
of Directors or the Board of Trustees (as the case may be) of the Fund.
 
Article 11  APPLICABLE LAW
 
    11.1 This Agreement shall be construed and the provisions thereof
interpreted under and in accordance with the laws of the State of New York.
 
Article 12  MISCELLANEOUS
 
    12.1 In the event that one or more additional investment companies managed
or administered by Dean Witter InterCapital Inc. or any of its affiliates
("Additional Funds") desires to retain DWTFSB to act as transfer agent, dividend
disbursing agent and/or shareholder servicing agent, and DWTFSB desires to
render such services, such services shall be provided pursuant to a letter
agreement, substantially in the form of Exhibit A hereto, between DWTFSB and
each Additional Fund.
 
    12.2 In the event of an alleged loss or destruction of any Share
certificate, no new certificate shall be issued in lieu thereof, unless there
shall first be furnished to DWTFSB an affidavit of loss or non-receipt by the
holder of Shares with respect to which a certificate has been lost or destroyed,
supported by an appropriate bond satisfactory to DWTFSB and the Fund issued by a
surety company satisfactory to DWTFSB, except that DWTFSB may accept an
affidavit of loss and indemnity agreement executed by the registered holder (or
legal representative) without surety in such form as DWTFSB deems appropriate
indemnifying DWTFSB and the Fund for the issuance of a replacement certificate,
in cases where the alleged loss is in the amount of $1,000 or less.
 
    12.3 In the event that any check or other order for payment of money on the
account of any Shareholder or new investor is returned unpaid for any reason,
DWTFSB will (a) give prompt notification to the Fund's distributor
("Distributor") (or to the Fund if the Fund acts as its own distributor) of such
non-payment; and (b) take such other action, including imposition of a
reasonable processing or handling fee, as DWTFSB may, in its sole discretion,
deem appropriate or as the Fund and, if applicable, the Distributor may instruct
DWTFSB.


                                       6

<PAGE>

    12.4 Any notice or other instrument authorized or required by this Agreement
to be given in writing to the Fund or to DWTFSB shall be sufficiently given if
addressed to that party and received by it at its office set forth below or at
such other place as it may from time to time designate in writing.
 
To the Fund:
 
[Name of Fund]
Two World Trade Center
New York, New York 10048
 
Attention: General Counsel
 
To DWTFSB:
 
Dean Witter Trust FSB
Harborside Financial Center
Plaza Two
Jersey City, New Jersey 07311
 
Attention: President
 
Article 13  MERGER OF AGREEMENT
 
    13.1 This Agreement constitutes the entire agreement between the parties
hereto and supersedes any prior agreement with respect to the subject matter
hereof whether oral or written.
 
Article 14  PERSONAL LIABILITY
 
    14.1 In the case of a Fund organized as a Massachusetts business trust, a
copy of the Declaration of Trust of the Fund is on file with the Secretary of
The Commonwealth of Massachusetts, and notice is hereby given that this
instrument is executed on behalf of the Board of Trustees of the Fund as
Trustees and not individually and that the obligations of this instrument are
not binding upon any of the Trustees or shareholders individually but are
binding only upon the assets and property of the Fund; provided, however, that
the Declaration of Trust of the Fund provides that the assets of a particular
Series of the Fund shall under no circumstances be charged with liabilities
attributable to any other Series of the Fund and that all persons extending
credit to, or contracting with or having any claim against, a particular Series
of the Fund shall look only to the assets of that particular Series for payment
of such credit, contract or claim.
 
    IN WITNESS WHEREOF, the parties hereto have caused this Amended and Restated
Agreement to be executed in their names and on their behalf by and through their
duly authorized officers, as of the day and year first above written.
 
DEAN WITTER FUNDS
 
     MONEY MARKET FUNDS
 
 1.  Dean Witter Liquid Asset Fund Inc.
 2.  Active Assets Money Trust
 3.  Dean Witter U.S. Government Money Market Trust
 4.  Active Assets Government Securities Trust
 5.  Dean Witter Tax-Free Daily Income Trust
 6.  Active Assets Tax-Free Trust
 7.  Dean Witter California Tax-Free Daily Income Trust
 8.  Dean Witter New York Municipal Money Market Trust
 9.  Active Assets California Tax-Free Trust
 
     EQUITY FUNDS
 
10.  Dean Witter American Value Fund
11.  Dean Witter Mid-Cap Growth Fund
12.  Dean Witter Dividend Growth Securities Inc.


                                       7

<PAGE>

13.  Dean Witter Capital Growth Securities
14.  Dean Witter Global Dividend Growth Securities
15.  Dean Witter Income Builder Fund
16.  Dean Witter Natural Resource Development Securities Inc.
17.  Dean Witter Precious Metals and Minerals Trust
18.  Dean Witter Developing Growth Securities Trust
19.  Dean Witter Health Sciences Trust
20.  Dean Witter Capital Appreciation Fund
21.  Dean Witter Information Fund
22.  Dean Witter Value-Added Market Series
23.  Dean Witter World Wide Investment Trust
24.  Dean Witter European Growth Fund Inc.
25.  Dean Witter Pacific Growth Fund Inc.
26.  Dean Witter International SmallCap Fund
27.  Dean Witter Japan Fund
28.  Dean Witter Utilities Fund
29.  Dean Witter Global Utilities Fund
30.  Dean Witter Special Value Fund
31.  Dean Witter Financial Services Trust
32.  Dean Witter Market Leader Trust
33.  Dean Witter Managers' Select Fund
34.  Dean Witter Fund of Funds
35.  Dean Witter S&P 500 Index Fund
 
     BALANCED FUNDS
 
36.  Dean Witter Balanced Growth Fund
37.  Dean Witter Balanced Income Trust
 
     ASSET ALLOCATION FUNDS
 
38.  Dean Witter Strategist Fund
39.  Dean Witter Global Asset Allocation Fund
 
     FIXED INCOME FUNDS
 
40.  Dean Witter High Yield Securities Inc.
41.  Dean Witter High Income Securities
42.  Dean Witter Convertible Securities Trust
43.  Dean Witter Intermediate Income Securities
44.  Dean Witter Short-Term Bond Fund
45.  Dean Witter World Wide Income Trust
46.  Dean Witter Global Short-Term Income Fund Inc.
47.  Dean Witter Diversified Income Trust
48.  Dean Witter U.S. Government Securities Trust
49.  Dean Witter Federal Securities Trust
50.  Dean Witter Short-Term U.S. Treasury Trust
51.  Dean Witter Intermediate Term U.S. Treasury Trust
52.  Dean Witter Tax-Exempt Securities Trust
53.  Dean Witter National Municipal Trust
55.  Dean Witter Limited Term Municipal Trust
55.  Dean Witter California Tax-Free Income Fund
56.  Dean Witter New York Tax-Free Income Fund
57.  Dean Witter Hawaii Municipal Trust
58.  Dean Witter Multi-State Municipal Series Trust
59.  Dean Witter Select Municipal Reinvestment Fund


                                       8

<PAGE>

     SPECIAL PURPOSE FUNDS
 
60.  Dean Witter Retirement Series
61.  Dean Witter Variable Investment Series
62.  Dean Witter Select Dimensions Investment Series
 
     TCW/DW FUNDS
 
63.  TCW/DW Core Equity Trust
64.  TCW/DW North American Government Income Trust
65.  TCW/DW Latin American Growth Fund
66.  TCW/DW Income and Growth Fund
67.  TCW/DW Small Cap Growth Fund
68.  TCW/DW Balanced Fund
69.  TCW/DW Total Return Trust
70.  TCW/DW Global Telecom Trust
71.  TCW/DW Strategic Income Trust
72.  TCW/DW Mid-Cap Equity Trust
 
                                          By:__________________________________
                                             Barry Fink
                                             Vice President and General Counsel
 
ATTEST:
 
_____________________________
Assistant Secretary
 
                                          DEAN WITTER TRUST FSB
 
                                          By:__________________________________
                                             John Van Heuvelen
                                             President
 
ATTEST:
 
_____________________________
Executive Vice President


                                       9

<PAGE>

                                      EXHIBIT A

Dean Wittter Trust FSB
Harborside Financial Center
Plaza Two
Jersey City, NJ  07311

Gentlemen:

    The undersigned, (INSET NAME OF INVESTMENT COMPANY) a (Massachusetts 
business trust/Maryland corporation) (the "Fund"), desires to employ and 
appoint Dean Witter Trust FSB ("DWTFSB") to act as transfer agent for each 
series and class of shares of the Fund, whether now or hereafter authorized 
or issued ("Shares"), dividend disbursing agent and shareholder servicing 
agent, registrar and agent in connection with any accumulation, open-account 
or similar plan provided to the holders of Shares, including without 
limitation any periodic investment plan or periodic withdrawal plan.

    The Fund hereby agrees that, in consideration for the payment by the Fund
to DWTFSB of fees as set out in the fee schedule attached hereto as Schedule A,
DWTFSB shall provide such services to the Fund pursuant to the terms and
conditions set forth in the Transfer Agency and Service Agreement annexed
hereto, as if the Fund was a signatory thereto.

    Please indicate DWTFSB's acceptance of employment and appointment by the
Fund in the capacities set forth above by so indicating in the space provided
below.

                                       Very truly yours,

                                        (NAME OF FUND)


                                  By:
                                     -----------------------------------
                                     Barry Fink
                                     Vice President and General Counsel

ACCEPTED AND AGREED TO:

DEAN WITTER TRUST FSB

By:      
   ---------------------------

Its:                         
    --------------------------

Date:                        
     -------------------------

                                      10
<PAGE>

                                      SCHEDULE A


Fund:         Dean Witter Utilities Fund

Fees:         (1)  Annual maintenance fee of $12.65 per shareholder account,
              payable monthly.

              (2)  A fee equal to 1/12 of the fee set forth in (1) above, for
              providing Forms 1099 for accounts closed during the year, payable
              following the end of the calendar year.

              (3)  Out-of-pocket expenses in accordance with Section 2.2 of the
              Agreement.

              (4)  Fees for additional services not set forth in this Agreement
              shall be as negotiated between the parties.


f:\schedA\32



<PAGE>



CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the use in the Statement of Additional Information 
constituting part of this Post-Effective Amendment No. 12 to the 
registration statement on Form N-1A (the "Registration Statement") of our 
report dated February 6, 1998, relating to the financial statements and 
financial highlights of Dean Witter Utilities Fund, which appears in such 
Statement of Additional Information, and to the incorporation by reference of 
our report into the Prospectus which constitutes part of this Registration 
Statement. We also consent to the references to us under the headings 
"Independent Accountants" and "Experts" in such Statement of Additional 
Information and to the reference to us under the heading 
"Financial Highlights" in such Prospectus.


/s/ PRICE WATERHOUSE LLP
PRICE WATERHOUSE LLP
1177 Avenue of the Americas
New York, New York 10036
February 25, 1998





<PAGE>

                                                                               
                           DEAN WITTER UTILITIES FUND                          
                                                                               
                     SCHEDULE OF COMPUTATION OF YIELD QUOTATION
                                          12/31/97                        
CLASS A                                                                        
                                                                               
                              6                                                
YIELD = 2 {[((a-b)/cd) +1] -1}                                                 
                                                                               
                                                                               
                                                                               
WHERE:   a = Dividends and interest earned during the period                   
         b = Expenses accrued for the period                                   
         c = The average daily number of shares outstanding                    
         d = The maximum offering price per share on the last                  
             day of the period                                              
                                                                               
                                                                               
                                                       6  
YIELD = 2 {[((13063.26-3001)/210729.53 X 17.95) +1] -1} 
                                           
                                       =    3.21%

<PAGE>

                                                                               
                           DEAN WITTER UTILITIES FUND                          
                                                                               
                     SCHEDULE OF COMPUTATION OF YIELD QUOTATION
                                          12/31/97                        
CLASS B                                                                        
                                                                           
                              6  
YIELD = 2 {[((a-b)/cd) +1] -1}                                             
                                                                           
                                                                           
                                                                           
WHERE:   a = Dividends and interest earned during the period               
         b = Expenses accrued for the period                               
         c = The average daily number of shares outstanding                
         d = The maximum offering price per share on the last              
             day of the period                                             
                                                                           
                                                                 6   
YIELD = 2 {[((8568615.78-3413016.63)/138300171.72 X 17.04) +1] -1}
                                       =     2.64%


<PAGE>

                                                                               
                           DEAN WITTER UTILITIES FUND                          
                                                                               
                     SCHEDULE OF COMPUTATION OF YIELD QUOTATION
                                          12/31/97                        
CLASS C                                                                        

                              6
YIELD = 2 {[((a-b)/cd) +1] -1}


WHERE:   a = Dividends and interest earned during the period              
         b = Expenses accrued for the period                              
         c = The average daily number of shares outstanding               
         d = The maximum offering price per share on the last             
             day of the period                                          
         

                                                        6 
YIELD = 2 {[((3029.77-1191.95)/18999.299 X 17.06) +1] -1}
                                       =    2.65%


<PAGE>

                                                                               
                           DEAN WITTER UTILITIES FUND                          
                                                                               
                     SCHEDULE OF COMPUTATION OF YIELD QUOTATION
                                          12/31/97                        
CLASS D                                                                        

                              6
YIELD = 2 {[((a-b)/cd) +1] -1}                                                 


WHERE:   a = Dividends and interest earned during the period               
         b = Expenses accrued for the period                               
         c = The average daily number of shares outstanding                
         d = The maximum offering price per share on the last              
             day of the period                                             
                                                                           
                                                                           
                                                           6
YIELD = 2 {[((58897.66-10091.61)/951598.39 X 17.06) +1] -1}                 
                                       =    3.65% 

<PAGE>
                 SCHEDULE FOR COMPUTATIONS OF PERFORMANCE QUOTATIONS
                                  UTILITIES FUND(A)




(A) AVERAGE ANNUAL TOTAL RETURNS (I.E. STANDARDIZED COMPUTATIONS)

                             _                                  _
                            |        ______________________  |
FORMULA:                    |       |                        |
                            |  /\ n |          ERV           |
                    T  =    |    \  |     -------------      |  - 1
                            |     \ |           P            |
                            |      \|                        |
                            |_                              _|

                   T = AVERAGE ANNUAL TOTAL RETURN
                   n = NUMBER OF YEARS
                 ERV = ENDING REDEEMABLE VALUE
                   P = INITIAL INVESTMENT

<TABLE>
<CAPTION>
                                                                                  (A)
  $1,000         ERV AS OF     AGGREGATE          NUMBER OF                   AVERAGE ANNUAL 
INVESTED - P      31-Dec-97   TOTAL RETURN        YEARS - n                   TOTAL RETURN - T
- -------------    -----------  --------------      -----------                 ----------------
<S>              <C>          <C>                 <C>                         <C>
 28-Jul-97        $1,118.60      11.86%                 0.43                      NA
</TABLE>


(B) AVERAGE ANNUAL TOTAL RETURNS WITHOUT DEDUCTION FOR APPLICABLE
    SALES CHARGE  (NON STANDARD COMPUTATIONS)


(C) TOTAL RETURN WITHOUT DEDUCTION FOR APPLICABLE SALES CHARGE
    (NON STANDARD COMPUTATIONS)



                             _                                  _
                            |        ______________________  |
FORMULA:                    |       |                        |
                            |  /\ n |          EV            |
                    t  =    |    \  |     -------------      |  - 1
                            |     \ |           P            |
                            |      \|                        |
                            |_                              _|

                                EV
                   TR  =    ----------   - 1
                                 P


             t = AVERAGE ANNUAL TOTAL RETURN 
                 (NO DEDUCTION FOR APPLICABLE SALES CHARGE)
             n = NUMBER OF YEARS
            EV = ENDING VALUE (NO DEDUCTION FOR APPLICABLE SALES CHARGE)
             P = INITIAL INVESTMENT
            TR = TOTAL RETURN (NO DEDUCTION FOR APPLICABLE SALES CHARGE)

<TABLE>
<CAPTION>
                                          (C)                                            (B)
  $1,000          EV AS OF             TOTAL                 NUMBER OF                   AVERAGE ANNUAL
INVESTED - P      31-Dec-97            RETURN - TR           YEARS - n                   TOTAL RETURN - t
- -------------    -----------           -------------------   -----------------           ----------------
<S>              <C>                   <C>                   <C>                         <C>
 28-Jul-97        $1,180.60                 18.06%                       0.43                   NA
</TABLE>


(D)        GROWTH OF $10,000*
(E)        GROWTH OF $50,000*
(F)        GROWTH OF $100,000*

FORMULA:   G= (TR+1)*P
           G= GROWTH OF INITIAL INVESTMENT
           P= INITIAL INVESTMENT
           TR= TOTAL RETURN SINCE INCEPTION 


<TABLE>
<CAPTION>
                 TOTAL                  (D)   GROWTH OF       (E)   GROWTH OF             (D)   GROWTH OF
INVESTED - P     RETURN - TR           $10,000 INVESTMENT-G  $50,000 INVESTMENT - G      $100,000 INVESTMENT - G
- ------------     -----------           --------------------  ----------------------      -----------------------
<S>              <C>                   <C>                   <C>                         <C>
 28-Jul-97            18.06               $11,186                     $56,669                   $114,518
</TABLE>

*INITIAL INVESTMENT $9,475, $48,000 & 97,000 RESPECTIVELY REFLECTS A 5.25%, 
4% & 3% SALES CHARGE

<PAGE>

                 SCHEDULE FOR COMPUTATIONS OF PERFORMANCE QUOTATIONS
                                  UTILITIES FUND(B)




(A) AVERAGE ANNUAL TOTAL RETURNS (I.E. STANDARDIZED COMPUTATIONS)

                             _                                  _
                            |        ______________________  |
FORMULA:                    |       |                        |
                            |  /\ n |          ERV           |
                    T  =    |    \  |     -------------      |  - 1
                            |     \ |           P            |
                            |      \|                        |
                            |_                              _|

                   T = AVERAGE ANNUAL COMPOUND RETURN
                   n = NUMBER OF YEARS
                 ERV = ENDING REDEEMABLE VALUE
                   P = INITIAL INVESTMENT

<TABLE>
<CAPTION>
                                                                 (A)
  $1,000         ERV AS OF             NUMBER OF             AVERAGE ANNUAL 
INVESTED - P      31-Dec-97            YEARS - n             COMPOUND RETURN - T
- -------------    -----------           -----------           ----------------------
<S>              <C>                   <C>                   <C>
 31-Dec-96        $1,207.90                     1                       20.79%

 31-Dec-92        $1,703.70                  5.00                       11.24%

 30-Apr-88        $2,986.30                  9.67                       11.97%
</TABLE>

(B) AVERAGE ANNUAL TOTAL RETURNS WITHOUT DEDUCTION FOR APPLICABLE
    SALES CHARGE  (NON STANDARD COMPUTATIONS)

(C) TOTAL RETURN WITHOUT DEDUCTION FOR APPLICABLE SALES CHARGE
    (NON STANDARD COMPUTATIONS)

                             _                                  _
                            |        ______________________  |
FORMULA:                    |       |                        |
                            |  /\ n |          EV            |
                    t  =    |    \  |     -------------      |  - 1
                            |     \ |           P            |
                            |      \|                        |
                            |_                              _|

                                EV
                   TR  =    ----------   - 1
                                 P


             t = AVERAGE ANNUAL COMPOUND RETURN 
                 (NO DEDUCTION FOR APPLICABLE SALES CHARGE)
             n = NUMBER OF YEARS
            EV = ENDING VALUE (NO DEDUCTION FOR APPLICABLE SALES CHARGE)
             P = INITIAL INVESTMENT
            TR = TOTAL RETURN (NO DEDUCTION FOR APPLICABLE SALES CHARGE)

<TABLE>
<CAPTION>
                                          (C)                                                (B)
  $1,000         EV AS OF              TOTAL                 NUMBER OF                   AVERAGE ANNUAL 
INVESTED - P      31-Dec-97            RETURN - TR           YEARS - n                   COMPOUND RETURN - t
- -------------    -----------           -----------           -----------------           ----------------
<S>              <C>                   <C>                   <C>                         <C>
 31-Dec-96        $1,257.90                 25.79%                          1                      25.79%

 31-Dec-92        $1,723.70                 72.37%                       5.00                      11.50%

 30-Apr-88        $2,986.30                198.63%                       9.67                      11.97%
</TABLE>

(D)        GROWTH OF $10,000
(E)        GROWTH OF $50,000
(F)        GROWTH OF $100,000

FORMULA:   G= (TR+1)*P
           G= GROWTH OF INITIAL INVESTMENT
           P= INITIAL INVESTMENT
           TR= TOTAL RETURN SINCE INCEPTION 


<TABLE>
<CAPTION>
$10,000          TOTAL                  (D)   GROWTH OF        (E)   GROWTH OF          (F)   GROWTH OF
INVESTED - P     RETURN - TR           $10,000 INVESTMENT - G  $50,000 INVESTMENT-G     $100,000 INVESTMENT - G
- -----------      -----------           ----------------------  --------------------     -----------------------
<S>              <C>                   <C>                     <C>                      <C>
 30-Apr-88           198.63               $29,863                         $149,315        $298,630
</TABLE>

<PAGE>

                 SCHEDULE FOR COMPUTATIONS OF PERFORMANCE QUOTATIONS
                                  UTILITIES FUND(C)




(A) AVERAGE ANNUAL TOTAL RETURNS (I.E. STANDARDIZED COMPUTATIONS)

                             _                                  _
                            |        ______________________  |
FORMULA:                    |       |                        |
                            |  /\ n |          ERV           |
                    T  =    |    \  |     -------------      |  - 1
                            |     \ |           P            |
                            |      \|                        |
                            |_                              _|

                   T = AVERAGE ANNUAL TOTAL RETURN
                   n = NUMBER OF YEARS
                 ERV = ENDING REDEEMABLE VALUE
                   P = INITIAL INVESTMENT

<TABLE>
<CAPTION>
                                                                                  (A)
  $1,000         ERV AS OF     AGGREGATE          NUMBER OF                   AVERAGE ANNUAL 
INVESTED - P      31-Dec-97   TOTAL RETURN        YEARS - n                   TOTAL RETURN - T
- -------------    -----------  --------------      -----------                 ----------------
<S>              <C>          <C>                 <C>                         <C>
 28-Jul-97        $1,166.70      16.67%                 0.43                      NA
</TABLE>


(B) AVERAGE ANNUAL TOTAL RETURNS WITHOUT DEDUCTION FOR APPLICABLE
    SALES CHARGE  (NON STANDARD COMPUTATIONS)

(C) TOTAL RETURN WITHOUT DEDUCTION FOR APPLICABLE SALES CHARGE
    (NON STANDARD COMPUTATIONS)




                             _                                  _
                            |        ______________________  |
FORMULA:                    |       |                        |
                            |  /\ n |          EV            |
                    t  =    |    \  |     -------------      |  - 1
                            |     \ |           P            |
                            |      \|                        |
                            |_                              _|

                                EV
                   TR  =    ----------   - 1
                                 P


             t = AVERAGE ANNUAL TOTAL RETURN 
                 (NO DEDUCTION FOR APPLICABLE SALES CHARGE)
             n = NUMBER OF YEARS
            EV = ENDING VALUE (NO DEDUCTION FOR APPLICABLE SALES CHARGE)
             P = INITIAL INVESTMENT
            TR = TOTAL RETURN (NO DEDUCTION FOR APPLICABLE SALES CHARGE)

<TABLE>
<CAPTION>
                                          (C)                                            (B)
  $1,000          EV AS OF             TOTAL                 NUMBER OF                   AVERAGE ANNUAL
INVESTED - P      31-Dec-97            RETURN - TR           YEARS - n                   TOTAL RETURN - t
- -------------    -----------           -------------------   -----------------           ----------------
<S>              <C>                   <C>                   <C>                         <C>
 28-Jul-97        $1,176.70                 17.67%                       0.43                   NA
</TABLE>

(D)        GROWTH OF $10,000
(E)        GROWTH OF $50,000
(F)        GROWTH OF $100,000

FORMULA:   G= (TR+1)*P
           G= GROWTH OF INITIAL INVESTMENT
           P= INITIAL INVESTMENT
           TR= TOTAL RETURN SINCE INCEPTION 

<TABLE>
<CAPTION>
                 TOTAL                  (D)   GROWTH OF       (E)   GROWTH OF             (D)   GROWTH OF
INVESTED - P     RETURN - TR           $10,000 INVESTMENT-G  $50,000 INVESTMENT - G      $100,000 INVESTMENT - G
- ------------     -----------           --------------------  ----------------------      -----------------------
<S>              <C>                   <C>                   <C>                         <C>
 28-Jul-97            17.67               $11,767                     $58,835                   $117,670
</TABLE>

<PAGE>

                 SCHEDULE FOR COMPUTATIONS OF PERFORMANCE QUOTATIONS
                                  UTILITIES FUND(D)



(A) TOTAL RETURN (NO LOAD FUND)



(B) AVERAGE ANNUAL TOTAL RETURNS (NO LOAD FUND)

                             _                                  _
                            |        ______________________  |
FORMULA:                    |       |                        |
                            |  /\ n |          EV            |
                    t  =    |    \  |     -------------      |  - 1
                            |     \ |           P            |
                            |      \|                        |
                            |_                              _|

                                EV
                   TR  =    ----------   - 1
                                 P


             t = AVERAGE ANNUAL COMPOUND RETURN 
             n = NUMBER OF YEARS
            EV = ENDING VALUE 
             P = INITIAL INVESTMENT
            TR = TOTAL RETURN 

<TABLE>
<CAPTION>
                                          (A)                                                    (B)
  $1,000         EV AS OF              TOTAL                 NUMBER OF                   AVERAGE ANNUAL 
INVESTED - P      31-Dec-97            RETURN - TR           YEARS - n                   COMPOUND RETURN - t
- -------------    -----------           -----------           -----------------           ------------------------
<S>              <C>                   <C>                   <C>                         <C>
 28-Jul-97        $1,181.30                 18.13%                       0.43                   NA
</TABLE>

(C)        GROWTH OF $10,000
(D)        GROWTH OF $50,000
(E)        GROWTH OF $100,000


FORMULA:   G= (TR+1)*P
           G= GROWTH OF INITIAL INVESTMENT
           P= INITIAL INVESTMENT
           TR= TOTAL RETURN SINCE INCEPTION 

<TABLE>
<CAPTION>
$10,000          TOTAL                  (C)   GROWTH OF        (D)   GROWTH OF             (E)   GROWTH OF
INVESTED - P     RETURN - TR           $10,000 INVESTMENT- G  $50,000 INVESTMENT- G       $100,000 INVESTMENT- G
- -----------      -----------           ---------------------  ---------------------       ----------------------
<S>              <C>                   <C>                    <C>                         <C>
 28-Jul-97            18.13               $11,813                      $59,065                   $118,130
</TABLE>


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<SERIES>
   <NUMBER> 001
   <NAME> UTILITIES FUND - CLASS A
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                    1,531,619,917
<INVESTMENTS-AT-VALUE>                   2,449,271,381
<RECEIVABLES>                               18,385,663
<ASSETS-OTHER>                                 108,740
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           2,467,765,784
<PAYABLE-FOR-SECURITIES>                       296,468
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   15,106,564
<TOTAL-LIABILITIES>                         15,403,032
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,512,693,562
<SHARES-COMMON-STOCK>                          210,576
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                    2,160,653
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     19,857,073
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   917,651,464
<NET-ASSETS>                                 3,581,103
<DIVIDEND-INCOME>                           91,250,894
<INTEREST-INCOME>                           23,462,840
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              39,621,952
<NET-INVESTMENT-INCOME>                     75,091,782
<REALIZED-GAINS-CURRENT>                   199,367,128
<APPREC-INCREASE-CURRENT>                  261,162,998
<NET-CHANGE-FROM-OPS>                      535,621,908
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (150,922)
<DISTRIBUTIONS-OF-GAINS>                     (252,328)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        772,410
<NUMBER-OF-SHARES-REDEEMED>                  (578,404)
<SHARES-REINVESTED>                             16,570
<NET-CHANGE-IN-ASSETS>                   (224,582,229)
<ACCUMULATED-NII-PRIOR>                        764,341
<ACCUMULATED-GAINS-PRIOR>                   16,863,788
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       13,037,906
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             39,621,952
<AVERAGE-NET-ASSETS>                         5,556,357
<PER-SHARE-NAV-BEGIN>                            15.89
<PER-SHARE-NII>                                    .27
<PER-SHARE-GAIN-APPREC>                           2.52
<PER-SHARE-DIVIDEND>                            (0.35)
<PER-SHARE-DISTRIBUTIONS>                       (1.32)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              17.01
<EXPENSE-RATIO>                                   0.92
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<SERIES>
   <NUMBER> 002
   <NAME> UTILITIES FUND - CLASS B
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                    1,531,619,917
<INVESTMENTS-AT-VALUE>                   2,449,271,381
<RECEIVABLES>                               18,385,663
<ASSETS-OTHER>                                 108,740
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           2,467,765,784
<PAYABLE-FOR-SECURITIES>                       296,468
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   15,106,564
<TOTAL-LIABILITIES>                         15,403,032
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,512,693,562
<SHARES-COMMON-STOCK>                      142,638,009
<SHARES-COMMON-PRIOR>                      175,844,684
<ACCUMULATED-NII-CURRENT>                    2,160,653
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     19,857,073
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   917,651,464
<NET-ASSETS>                             2,430,270,457
<DIVIDEND-INCOME>                           91,250,894
<INTEREST-INCOME>                           23,462,840
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              39,621,952
<NET-INVESTMENT-INCOME>                     75,091,782
<REALIZED-GAINS-CURRENT>                   199,367,128
<APPREC-INCREASE-CURRENT>                  261,162,998
<NET-CHANGE-FROM-OPS>                      535,621,908
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                 (73,193,086)
<DISTRIBUTIONS-OF-GAINS>                 (194,864,905)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     11,966,780
<NUMBER-OF-SHARES-REDEEMED>               (57,908,671)
<SHARES-REINVESTED>                         13,633,251
<NET-CHANGE-IN-ASSETS>                   (224,582,229)
<ACCUMULATED-NII-PRIOR>                        764,341
<ACCUMULATED-GAINS-PRIOR>                   16,863,788
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       13,037,906
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             39,621,952
<AVERAGE-NET-ASSETS>                     2,374,837,742
<PER-SHARE-NAV-BEGIN>                            15.22
<PER-SHARE-NII>                                   0.50
<PER-SHARE-GAIN-APPREC>                           3.28
<PER-SHARE-DIVIDEND>                            (0.51)
<PER-SHARE-DISTRIBUTIONS>                       (1.45)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              17.04
<EXPENSE-RATIO>                                   1.67
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<SERIES>
   <NUMBER> 003
   <NAME> UTILITIES FUND - CLASS C
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                    1,531,619,917
<INVESTMENTS-AT-VALUE>                   2,449,271,381
<RECEIVABLES>                               18,385,663
<ASSETS-OTHER>                                 108,740
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           2,467,765,784
<PAYABLE-FOR-SECURITIES>                       296,468
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   15,106,564
<TOTAL-LIABILITIES>                         15,403,032
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,512,693,562
<SHARES-COMMON-STOCK>                           82,379
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                    2,160,653
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     19,857,073
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   917,651,464
<NET-ASSETS>                                 1,405,078
<DIVIDEND-INCOME>                           91,250,894
<INTEREST-INCOME>                           23,462,840
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              39,621,952
<NET-INVESTMENT-INCOME>                     75,091,782
<REALIZED-GAINS-CURRENT>                   199,367,128
<APPREC-INCREASE-CURRENT>                  261,162,998
<NET-CHANGE-FROM-OPS>                      535,621,908
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (6,635)
<DISTRIBUTIONS-OF-GAINS>                      (57,955)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         79,155
<NUMBER-OF-SHARES-REDEEMED>                       (70)
<SHARES-REINVESTED>                              3,294
<NET-CHANGE-IN-ASSETS>                   (224,582,229)
<ACCUMULATED-NII-PRIOR>                        764,341
<ACCUMULATED-GAINS-PRIOR>                   16,863,788
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       13,037,906
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             39,621,952
<AVERAGE-NET-ASSETS>                           369,316
<PER-SHARE-NAV-BEGIN>                            15.89
<PER-SHARE-NII>                                   0.22
<PER-SHARE-GAIN-APPREC>                           2.51
<PER-SHARE-DIVIDEND>                            (0.24)
<PER-SHARE-DISTRIBUTIONS>                       (1.32)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              17.06
<EXPENSE-RATIO>                                   1.69
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<SERIES>
   <NUMBER> 004
   <NAME> UTILITIES FUND - CLASS D
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<INVESTMENTS-AT-COST>                    1,531,619,917
<INVESTMENTS-AT-VALUE>                   2,449,271,381
<RECEIVABLES>                               18,385,663
<ASSETS-OTHER>                                 108,740
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           2,467,765,784
<PAYABLE-FOR-SECURITIES>                       296,468
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                   15,106,564
<TOTAL-LIABILITIES>                         15,403,032
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 1,512,693,562
<SHARES-COMMON-STOCK>                        1,006,969
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                    2,160,653
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     19,857,073
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   917,651,464
<NET-ASSETS>                                17,106,114
<DIVIDEND-INCOME>                           91,250,894
<INTEREST-INCOME>                           23,462,840
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              39,621,952
<NET-INVESTMENT-INCOME>                     75,091,782
<REALIZED-GAINS-CURRENT>                   199,367,128
<APPREC-INCREASE-CURRENT>                  261,162,998
<NET-CHANGE-FROM-OPS>                      535,621,908
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    (344,827)
<DISTRIBUTIONS-OF-GAINS>                   (1,198,655)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        128,367
<NUMBER-OF-SHARES-REDEEMED>                  (113,508)
<SHARES-REINVESTED>                             94,075
<NET-CHANGE-IN-ASSETS>                   (224,582,229)
<ACCUMULATED-NII-PRIOR>                        764,341
<ACCUMULATED-GAINS-PRIOR>                   16,863,788
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       13,037,906
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             39,621,952
<AVERAGE-NET-ASSETS>                        15,070,980
<PER-SHARE-NAV-BEGIN>                            15.89
<PER-SHARE-NII>                                    .22
<PER-SHARE-GAIN-APPREC>                           2.58
<PER-SHARE-DIVIDEND>                            (0.38)
<PER-SHARE-DISTRIBUTIONS>                       (1.32)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.99
<EXPENSE-RATIO>                                   0.67
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>

<PAGE>
                               POWER OF ATTORNEY

    KNOW ALL MEN BY THESE PRESENTS, that WAYNE E. HEDIEN, whose signature
appears below, constitutes and appoints David M. Butowsky, Ronald Feiman and
Stuart Strauss, or any of them, his true and lawful attorneys-in-fact and
agents, with full power of substitution among himself and each of the persons
appointed herein, for him and in his name, place and stead, in any and all
capacities, to sign any amendments to any registration statement of ANY OF THE
DEAN WITTER FUNDS SET FORTH ON SCHEDULE A ATTACHED HERETO, and to file the same,
with all exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange Commission, as fully to all intents and purposes as he
might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or any of them, may lawfully do or cause to be
done by virtue hereof.
 
Dated: September 1, 1997
 
                                                   /s/ WAYNE E. HEDIEN
                                          --------------------------------------
                                                     Wayne E. Hedien

<PAGE>

                                   SCHEDULE A

<TABLE>
<C>        <S>
       1.  Active Assets Money Trust
       2.  Active Assets Tax-Free Trust
       3.  Active Assets Government Securities Trust
       4.  Active Assets California Tax-Free Trust
       5.  Dean Witter New York Municipal Money Market Trust
       6.  Dean Witter American Value Fund
       7.  Dean Witter Tax-Exempt Securities Trust
       8.  Dean Witter Tax-Free Daily Income Trust
       9.  Dean Witter Capital Growth Securities
      10.  Dean Witter U.S. Government Money Market Trust
      11.  Dean Witter Precious Metals and Minerals Trust
      12.  Dean Witter Developing Growth Securities Trust
      13.  Dean Witter World Wide Investment Trust
      14.  Dean Witter Value-Added Market Series
      15.  Dean Witter Utilities Fund
      16.  Dean Witter Strategist Fund
      17.  Dean Witter California Tax-Free Daily Income Trust
      18.  Dean Witter Convertible Securities Trust
      19.  Dean Witter Intermediate Income Securities
      20.  Dean Witter World Wide Income Trust
      21.  Dean Witter S&P 500 Index Fund
      22.  Dean Witter U.S. Government Securities Trust
      23.  Dean Witter Federal Securities Trust
      24.  Dean Witter Multi-State Municipal Series Trust
      25.  Dean Witter California Tax-Free Income Fund
      26.  Dean Witter New York Tax-Free Income Fund
      27.  Dean Witter Select Municipal Reinvestment Fund
      28.  Dean Witter Variable Investment Series
      29.  High Income Advantage Trust
      30.  High Income Advantage Trust II
      31.  High Income Advantage Trust III
      32.  InterCapital Insured Municipal Bond Trust
      33.  InterCapital Insured Municipal Trust
      34.  InterCapital Insured Municipal Income Trust
      35.  InterCapital Quality Municipal Investment Trust
      36.  InterCapital Quality Municipal Income Trust
      37.  Dean Witter Government Income Trust
      38.  Municipal Income Trust
      39.  Municipal Income Trust II
      40.  Municipal Income Trust III
      41.  Municipal Income Opportunities Trust
      42.  Municipal Income Opportunities Trust II
      43.  Municipal Income Opportunities Trust III
      44.  Municipal Premium Income Trust
      45.  Prime Income Trust
      46.  Dean Witter Short-Term U.S. Treasury Trust
      47.  Dean Witter Diversified Income Trust
      48.  InterCapital California Insured Municipal Income Trust
      49.  Dean Witter Health Sciences Trust
      50.  Dean Witter Global Dividend Growth Securities
      51.  InterCapital Quality Municipal Securities
</TABLE>

<PAGE>

<TABLE>
<C>        <S>
      52.  InterCapital California Quality Municipal Securities
      53.  InterCapital New York Quality Municipal Securities
      54.  Dean Witter Retirement Series
      55.  Dean Witter Limited Term Municipal Trust
      56.  Dean Witter Short-Term Bond Fund
      57.  Dean Witter Global Utilities Fund
      58.  InterCapital Insured Municipal Securities
      59.  InterCapital Insured California Municipal Securities
      60.  Dean Witter High Income Securities
      61.  Dean Witter National Municipal Trust
      62.  Dean Witter International SmallCap Fund
      63.  Dean Witter Mid-Cap Growth Fund
      64.  Dean Witter Select Dimensions Investment Series
      65.  Dean Witter Global Asset Allocation Fund
      66.  Dean Witter Balanced Growth Fund
      67.  Dean Witter Balanced Income Fund
      68.  Dean Witter Intermediate Term U.S. Treasury Trust
      69.  Dean Witter Hawaii Municipal Trust
      70.  Dean Witter Japan Fund
      71.  Dean Witter Capital Appreciation Fund
      72.  Dean Witter Information Fund
      73.  Dean Witter Fund of Funds
      74.  Dean Witter Special Value Fund
      75.  Dean Witter Income Builder Fund
      76.  Dean Witter Financial Services Trust
      77.  Dean Witter Market Leader Trust
      78.  Dean Witter Managers' Select Fund
      79.  Dean Witter Liquid Asset Fund Inc.
      80.  Dean Witter Natural Resource Development Securities Inc.
      81.  Dean Witter Dividend Growth Securities Inc.
      82.  Dean Witter European Growth Fund Inc.
      83.  Dean Witter Pacific Growth Fund Inc.
      84.  Dean Witter High Yield Securities Inc.
      85.  Dean Witter Global Short-Term Income Fund Inc.
      86.  InterCapital Income Securities Inc.
</TABLE>


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