MORGAN STANLEY DEAN WITTER PACIFIC GROWTH FUND INC
497, 1998-12-08
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<PAGE>
   
              PROSPECTUS
              NOVEMBER 2, 1998
    
 
              Morgan Stanley Dean Witter Pacific Growth Fund Inc. (the "Fund")
is an open-end, diversified management investment company whose investment
objective is to maximize the capital appreciation of its investments. The Fund
seeks to achieve this objective by investing primarily in securities issued by
issuers located in Asia, Australia and New Zealand.
 
               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 November 2, 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.
    
 
     MORGAN STANLEY
     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/10
  Risk Considerations/12
Investment Restrictions/19
Purchase of Fund Shares/19
Shareholder Services/31
Redemptions and Repurchases/35
Dividends, Distributions and Taxes/36
Performance Information/37
Additional Information/38
    
 
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.
 
    Morgan Stanley Dean Witter
    Pacific Growth Fund Inc.
    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 an open-end, diversified management investment company investing primarily in securities issued by
Fund                issuers located in Asia, Australia and New Zealand.
- ------------------------------------------------------------------------------------------------------------------------------------
Shares              Shares of common stock with $0.01 par value (see page 38). The Fund offers four classes of shares, each with a
Offered             different combination of sales charges, ongoing fees and other features (see pages 19-30).
- ------------------------------------------------------------------------------------------------------------------------------------
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 ($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) 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 Morgan Stanley Dean
                    Witter Advisors Inc. serves as investment manager ("Morgan Stanley Dean Witter Funds") that are sold with a
                    front-end sales charge, and concurrent investments in Class D shares of the Fund and other Morgan Stanley Dean
                    Witter Funds that are multiple class funds, will be aggregated. The minimum subsequent investment is $100 (see
                    page 19).
- ------------------------------------------------------------------------------------------------------------------------------------
Investment          The investment objective of the Fund is to maximize the capital appreciation of its investments (see page 10).
Objective
- ------------------------------------------------------------------------------------------------------------------------------------
Investment          Morgan Stanley Dean Witter Advisors Inc., the Investment Manager of the Fund, and its wholly-owned subsidiary,
Manager and         Morgan Stanley Dean Witter Services Company Inc., serve in various investment management, advisory, management
Sub-Advisor         and administrative capacities to 100 investment companies and other portfolios with assets of approximately
                    $113.7 billion at September 30, 1998. Morgan Stanley Asset Management Inc. ("MSAM"), an affiliate of the
                    Investment Manager, has been retained by the Investment Manager as Sub-Advisor to provide investment advice and
                    manage the Fund's portfolio. MSAM conducts a worldwide investment advisory business. As of September 30, 1998,
                    MSAM, together with its institutional investment management affiliates, managed assets of approximately $156.3
                    billion (see page 9).
- ------------------------------------------------------------------------------------------------------------------------------------
Management          The Investment Manager receives a monthly fee from the Fund at the annual rate of 0.95% of daily net assets not
Fee                 exceeding $1 billion; 0.90% of the daily net assets exceeding $1 billion but not exceeding $2 billion; and 0.85%
                    of the daily net assets exceeding $2 billion. The Sub-Advisor receives a monthly fee from the Investment Manager
                    equal to 40% of the Investment Manager's monthly fee (see page 9). Although the management fee is higher than
                    that paid by most other investment companies, the fee reflects the specialized nature of the Fund's investment
                    policies.
- ------------------------------------------------------------------------------------------------------------------------------------
Distributor and     Morgan Stanley Dean Witter Distributors is the Distributor of the Fund's shares. The Fund has adopted a
Distribution Fee    distribution plan pursuant to Rule 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 19 and 29).
- ------------------------------------------------------------------------------------------------------------------------------------
Alternative         Four classes of shares are offered:
Purchase            - Class A shares are offered with a front-end sales charge, starting at 5.25% and reduced for larger purchases.
Arrangements        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 19, 23 and 29).
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
                                       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 have been designated Class B shares. Shares held before May 1, 1997 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 19, 25 and 29).
 
                    - 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 19, 28 and 29).
 
                    - 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 19, 28 and 29).
- ------------------------------------------------------------------------------------------------------------------------------------
Dividends and       Dividends from net investment income and distributions from net capital gains are paid at least once each year.
Distributions       The Fund may, however, determine to retain all or part of any net long-term capital gains in any year for
                    reinvestment. Dividends and capital gains distributions paid on 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 31
                    and 36).
- ------------------------------------------------------------------------------------------------------------------------------------
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 35).
- ------------------------------------------------------------------------------------------------------------------------------------
Risk                The net asset value of the Fund's shares will fluctuate with changes in the market value of its portfolio
Considerations      securities. It should be recognized that the foreign securities and markets in which the Fund will invest pose
                    different and greater risks than those customarily associated with domestic securities and their markets.
                    Furthermore, investors should consider other risks associated with a portfolio of international securities,
                    including fluctuations in foreign currency exchange rates (i.e., if a substantial portion of the Fund's assets
                    is denominated in foreign currencies which decrease in value with respect to the U.S. dollar, the value of the
                    investor's shares and the distributions made on those shares will, likewise, decrease in value), foreign
                    securities exchange controls and foreign tax rates, as well as transactions in forward currency contracts,
                    options and futures contracts (see pages 12-18). The investor should also note that the Fund may invest over 25%
                    of its total assets in securities of Japanese, Hong Kong, Malaysian, South Korean and Taiwanese issuers (see
                    page 10).
</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
the expenses and fees for the fiscal year ended October 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 Dividend Reinvestments..................................   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*................................................................   0.94%       0.94%     0.94%       0.94%
12b-1 Fees (5) (6)..............................................................   0.25%       1.00%     1.00%       None
Other Expenses..................................................................   0.45%       0.45%     0.45%       0.45%
Total Fund Operating Expenses* (7)..............................................   1.64%       2.39%     2.39%       1.39%
</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."
*  EFFECTIVE NOVEMBER 1, 1998, THE INVESTMENT MANAGEMENT AGREEMENT BETWEEN THE
   INVESTMENT MANAGER AND THE FUND WAS AMENDED TO REDUCE THE FEE PAID BY THE
   FUND TO THE INVESTMENT MANAGER FROM AN ANNUAL RATE OF 1.00% OF DAILY NET
   ASSETS NOT EXCEEDING $1 BILLION; 0.95% OF DAILY NET ASSETS EXCEEDING $1
   BILLION BUT NOT EXCEEDING $2 BILLION; AND 0.90% OF THE PORTION OF DAILY NET
   ASSETS EXCEEDING $2 BILLION, TO 0.95% OF DAILY NET ASSETS NOT EXCEEDING $1
   BILLION; 0.90% OF DAILY NET ASSETS EXCEEDING $1 BILLION BUT NOT EXCEEDING $2
   BILLION; AND 0.85% OF THE PORTION OF DAILY NET ASSETS EXCEEDING $2 BILLION.
   "MANAGEMENT FEES" AND "TOTAL FUND OPERATING EXPENSES" HAVE BEEN RESTATED TO
   REFLECT THE LOWER FEE.
 
                                       4
<PAGE>
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                   10
EXAMPLES                                            1 Year   3 Years   5 Years    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.......................................   $68       $102      $137      $237
    Class B.......................................   $74       $105      $148      $273
    Class C.......................................   $34       $75       $128      $273
    Class D.......................................   $14       $44       $76       $167
 
You would pay the following expenses on the same
 $1,000 investment assuming no redemption at the
 end of the period:
    Class A.......................................   $68       $102      $137      $237
    Class B.......................................   $24       $75       $128      $273
    Class C.......................................   $24       $75       $128      $273
    Class D.......................................   $14       $44       $76       $167
</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
"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 capital stock
outstanding throughout each of the periods through October 31, 1997 have been
audited by PricewaterhouseCoopers LLP, independent accountants. The information
for the six-month period ended April 30, 1998 is unaudited. The financial
highlights should be read in conjunction with the financial statements, notes
thereto, and the unqualified report of 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 of the Fund.
 
<TABLE>
<CAPTION>
                                                                                                       FOR THE
                             FOR THE                                                                    PERIOD
                               SIX                                                                   NOVEMBER 30,
                              MONTHS                                                                    1990*
                              ENDED                    FOR THE YEAR ENDED OCTOBER 31,                  THROUGH
                            APRIL 30,    ----------------------------------------------------------  OCTOBER 31,
CLASS B SHARES                1998++     1997***++   1996      1995      1994      1993     1992**       1991
                            ----------   --------  --------  --------  --------  --------  --------  ------------
                            (UNAUDITED)
<S>                         <C>          <C>       <C>       <C>       <C>       <C>       <C>       <C>
PER SHARE OPERATING
 PERFORMANCE:
Net asset value, beginning
 of period................    $12.83       $18.89    $18.77    $21.60    $19.80    $12.69    $11.72   $10.00
                            ----------   --------  --------  --------  --------  --------  --------  ------------
Net investment income
 (loss)...................     (0.01)        0.01      0.05      0.08     (0.10)    (0.04)    (0.01)    0.06
Net realized and
 unrealized gain (loss)...     (1.56)       (5.77)     0.50     (1.94)     2.22      7.15      1.14     1.69
                            ----------   --------  --------  --------  --------  --------  --------  ------------
Total from investment
 operations...............     (1.57)       (5.76)     0.55     (1.86)     2.12      7.11      1.13     1.75
                            ----------   --------  --------  --------  --------  --------  --------  ------------
Less dividends and
 distributions from:
   Net investment
   income.................     (0.19)       (0.30)    (0.43)       --        --        --     (0.01)   (0.03)
   Net realized gain......        --           --        --     (0.97)    (0.32)       --     (0.15)      --
                            ----------   --------  --------  --------  --------  --------  --------  ------------
Total dividends and
 distributions............     (0.19)       (0.30)    (0.43)    (0.97)    (0.32)       --     (0.16)   (0.03)
                            ----------   --------  --------  --------  --------  --------  --------  ------------
Net asset value, end of
 period...................    $11.07       $12.83    $18.89    $18.77    $21.60    $19.80    $12.69   $11.72
                            ----------   --------  --------  --------  --------  --------  --------  ------------
                            ----------   --------  --------  --------  --------  --------  --------  ------------
TOTAL INVESTMENT
 RETURN+..................  (12.25)%(1)  (31.01)%     3.00%   (8.65)%    10.69%    56.13%     9.86%   17.54%     (1)
RATIOS TO AVERAGE NET
 ASSETS:
Expenses..................     2.83%(2)     2.44%     2.39%     2.45%     2.41%     2.38%     2.77%    2.43%     (2)(3)
Net investment income
 (loss)...................   (0.23)%(2)     0.03%     0.18%     0.35%   (0.70)%   (0.46)%   (0.30)%    0.61%     (2)(3)
SUPPLEMENTAL DATA:
Net assets, end of period,
 in millions..............      $562         $744    $1,624    $1,442    $1,571      $694      $177      $86
Portfolio turnover rate...       38%(1)       42%       49%       50%       35%       30%       73%      70%     (1)
Average commission rate
 paid.....................   $0.0059      $0.0075   $0.0095        --        --        --        --       --
</TABLE>
 
- ---------------
  * COMMENCEMENT OF OPERATIONS.
 ** NET INVESTMENT LOSS WAS COMPUTED BASED UPON THE MONTHLY AVERAGE SHARES
    OUTSTANDING.
*** PRIOR TO JULY 28, 1997, THE FUND ISSUED ONE CLASS OF SHARES. ALL SHARES OF
    THE FUND HELD PRIOR TO THAT DATE HAVE BEEN DESIGNATED CLASS B 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.
 (3) IF THE FUND HAD BORNE ALL EXPENSES THAT WERE ASSUMED OR WAIVED BY THE
     INVESTMENT MANAGER, THE ABOVE ANNUALIZED EXPENSE AND NET INVESTMENT INCOME
     RATIOS WOULD HAVE BEEN 2.83% AND 0.22%, RESPECTIVELY.
 
                                       6
<PAGE>
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<TABLE>
<CAPTION>
                                                                                            FOR THE PERIOD
                                                                                            JULY 28, 1997*
                                                                          FOR THE SIX          THROUGH
                                                                          MONTHS ENDED       OCTOBER 31,
CLASS A SHARES                                                          APRIL 30, 1998++        1997++
                                                                        ----------------   ----------------
                                                                          (UNAUDITED)
<S>                                                                     <C>                <C>
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 12.86            $ 19.39
                                                                            -------            -------
Net investment income.................................................         0.03                 --
                                                                            -------            -------
Net realized and unrealized loss......................................        (1.56)             (6.53)
                                                                            -------            -------
Total from investment operations......................................        (1.53)             (6.53)
                                                                            -------            -------
Less dividends from net investment income.............................        (0.26)                --
                                                                            -------            -------
Net asset value, end of period........................................      $ 11.07            $ 12.86
                                                                            -------            -------
                                                                            -------            -------
TOTAL INVESTMENT RETURN+..............................................       (11.93)%(1)        (33.68)%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         2.05%(2)           1.92%(2)
Net investment loss...................................................         0.48%(2)          (0.03)%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................       $2,651               $622
Portfolio turnover rate...............................................           38%(1)             42%
Average commission rate paid..........................................      $0.0059            $0.0075
 
CLASS C SHARES
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 12.83            $ 19.39
                                                                            -------            -------
Net investment loss...................................................        (0.03)             (0.04)
Net realized and unrealized loss......................................        (1.52)             (6.52)
                                                                            -------            -------
Total from investment operations......................................        (1.55)             (6.56)
                                                                            -------            -------
Less dividends from net investment income.............................        (0.23)                --
                                                                            -------            -------
Net asset value, end of period........................................      $ 11.05            $ 12.83
                                                                            -------            -------
                                                                            -------            -------
TOTAL INVESTMENT RETURN+..............................................       (12.11)%(1)        (33.83)%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         2.83%(2)           2.62%(2)
Net investment loss...................................................        (0.57)%(2)         (0.77)%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................       $1,300               $819
Portfolio turnover rate...............................................           38%(1)             42%
Average commission rate paid..........................................      $0.0059            $0.0075
</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>
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<TABLE>
<CAPTION>
                                                              FOR THE PERIOD
                                                              JULY 28, 1997*
                                            FOR THE SIX          THROUGH
                                            MONTHS ENDED       OCTOBER 31,
CLASS D SHARES                            APRIL 30, 1998++        1997++
                                          ----------------   ----------------
                                            (UNAUDITED)
<S>                                       <C>                <C>
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period....      $ 12.86            $ 19.39
                                              -------            -------
Net investment income...................         0.02               0.02
Net realized and unrealized loss........        (1.53)             (6.55)
                                              -------            -------
Total from investment operations........        (1.51)             (6.53)
                                              -------            -------
Less dividends from net investment
 income.................................        (0.27)                --
                                              -------            -------
Net asset value, end of period..........      $ 11.08            $ 12.86
                                              -------            -------
                                              -------            -------
 
TOTAL INVESTMENT RETURN+................       (11.79)%(1)        (33.68)%(1)
 
RATIOS TO AVERAGE NET ASSETS:
Expenses................................         1.84%(2)           1.62%(2)
Net investment income...................         0.35%(2)           0.42%(2)
 
SUPPLEMENTAL DATA:
Net assets, end of period, in
 thousands..............................       $1,517               $118
Portfolio turnover rate.................           38%(1)             42%
Average commission rate paid............      $0.0059            $0.0075
</TABLE>
 
- -------------
 * THE DATE SHARES WERE FIRST ISSUED.
 
++ 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
- --------------------------------------------------------------------------------
 
   
    Morgan Stanley Dean Witter Pacific Growth Fund Inc. (formerly named Dean
Witter Pacific Growth Fund Inc.) (the "Fund") is an open-end, diversified
management investment company incorporated in the state of Maryland on June 13,
1990.
    
 
    Morgan Stanley Dean Witter Advisors Inc. ("MSDW Advisors" 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 is a wholly-owned
subsidiary of Morgan Stanley Dean Witter & Co., a preeminent global financial
services firm that maintains leading market positions in each of its three
primary businesses--securities, asset management and credit services. The
Investment Manager, which was incorporated in July 1992 under the name Dean
Witter InterCapital Inc., changed its name to Morgan Stanley Dean Witter
Advisors Inc. on June 22, 1998.
 
   
    MSDW Advisors and its wholly-owned subsidiary, Morgan Stanley Dean Witter
Services Company Inc. ("MSDW Services"), serve in various investment management,
advisory, management and administrative capacities to 100 investment companies,
28 of which are listed on the New York Stock Exchange, with combined assets of
approximately $109.6 billion as of September 30, 1998. The Investment Manager
also manages and advises portfolios of pension plans, other institutions and
individuals which aggregated approximately $4.1 billion at such date.
    
 
    The Fund has retained the Investment Manager to provide administrative
services, manage its business affairs and supervise the investment of the Fund's
assets. MSDW Advisors has retained MSDW Services to perform the aforementioned
administrative services for the Fund.
 
    Under a Sub-Advisory Agreement between Morgan Stanley Asset Management Inc.
("MSAM" or the "Sub-Advisor") and the Investment Manager, the Sub-Advisor
provides the Fund with investment advice and portfolio management relating to
the Fund's investments in securities issued by issuers located in Asia,
Australia and New Zealand and in countries located elsewhere around the world,
subject to the overall supervision of the Investment Manager. The Fund's
Directors review the various services provided by the Investment Manager and the
Sub-Advisor 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.
 
   
    The Sub-Advisor, whose address is 1221 Avenue of the Americas, New York, New
York, together with its institutional investment management affiliates manages,
as of September 30, 1998, assets of approximately $156.3 billion primarily for
U.S. corporate and public employee benefit plans, investment companies,
endowments, foundations and wealthy individuals. MSAM, like MSDW Advisors, is a
wholly-owned subsidiary of MSDW.
    
 
   
    Prior to November, 1998, the Fund was sub-advised by another sub-advisor
(the "Former Sub-Advisor"). In May, 1998, the Former Sub-Advisor indicated its
intention to resign and on June 2, 1998, the Board of Directors recommended that
a new Sub-Advisory Agreement with MSAM be submitted to shareholders of the Fund
for approval. The shareholders approved the new Sub-Advisory Agreement with MSAM
on August 18, 1998 and the new Sub-Advisory Agreement became effective on
November 1, 1998.
    
 
    At the same time that the new Sub-Advisory Agreement took effect, the
Investment Manager and the Fund amended the Investment Management Agreement
between the Investment Manager and the Fund to reduce the fee paid by the Fund
to the Investment Manager as full compensation for the services and facilities
furnished to the Fund and for expenses of the Fund assumed by the Investment
Manager under the Investment Management Agreement by 0.05% of the Fund's average
daily net assets. The new fee paid by the Fund to the Investment Manager is
0.95% of the portion of daily net assets not exceeding
 
                                       9
<PAGE>
$1 billion; 0.90% of the portion of daily net assets exceeding $1 billion but
not exceeding $2 billion; and 0.85% of the portion of daily net assets exceeding
$2 billion. As compensation for its services provided pursuant to the
Sub-Advisory Agreement, the Investment Manager pays the Sub-Advisor monthly
compensation equal to 40% of its monthly compensation.
 
    For the fiscal year ended October 31, 1997, and therefore prior to the
amendment of the Investment Management Agreement and the effectiveness of the
lower fee, the Fund accrued total compensation to the Investment Manager
amounting to 0.99% of the Fund's average daily net assets (of which 40% was
accrued to the Sub-Advisor by the Investment Manager) and the total expenses of
Class B amounted to 2.44% of the 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 maximize the capital appreciation
of its investments. There is no assurance that the objective will be achieved.
This objective is fundamental and may not be changed without shareholder
approval. The following policies may be changed by the Board of Directors
without shareholder approval.
 
    The Fund seeks to achieve its investment objective by investing at least 65%
of its total assets in securities issued by issuers located in Asia, Australia
and New Zealand. Such issuers will include companies which are organized under
the laws of an Asian country, Australia or New Zealand and have a principal
office in an Asian country, Australia or New Zealand, or which derive 50% or
more of their total revenues from business in an Asian country, Australia or New
Zealand.
 
    The principal countries in which such issuers will be located are Japan,
Australia, Malaysia, Singapore, Hong Kong, Thailand, the Philippines, Indonesia,
Taiwan, South Korea and India. The Fund's investment portfolio will be invested
in at least three separate countries.
 
    The Fund may invest more than 25% of its total assets in Japan, reflecting
the dominance of the Japanese stock market in the Pacific Basin. The
concentration of the Fund's assets in Japanese issuers will subject the Fund to
the risks of adverse social, political or economic events which occur in Japan.
Specifically, investments in the Japanese stock market may entail a higher
degree of risk than investments in other markets as, by fundamental measures of
corporate valuation such as its high price-earnings ratios and low dividend
yields, the Japanese market as a whole may appear expensive relative to other
world stock markets (I.E., the prices of Japanese stocks may be relatively
high). In addition, the prices of securities traded on the Japanese markets may
be more volatile than many other markets.
 
    The Fund also may invest over 25% of its total assets in securities issued
by issuers located in Hong Kong. In common with the other stock markets of the
Pacific Basin, the Hong Kong stock market is more volatile, as measured by
standard deviation, than the major equity markets of North America and Europe.
On July 1, 1997, Hong Kong became part of the People's Republic of China, and
now forms a Special Administrative Region within that country. The Government of
China has indicated that it will not seek to alter the free market-oriented
economic system of Hong Kong for at least fifty years following 1997.
 
    The Fund may also invest over 25% of its total assets in securities issued
by issuers located in each of Malaysia, South Korea and Taiwan. These markets
may also be more volatile than many other markets and, as in the case of other
international
 
                                       10
<PAGE>
equity markets, the value of equities can be impacted by unforeseen, adverse
developments in the macro-economy or currency, political and/or social
instability, government regulatory changes or individual corporate developments.
 
    The securities invested in will primarily consist of equity securities
issued by companies based in Asian countries, Australia and New Zealand which
the Investment Manager and/or Sub-Advisor believe are most likely to help the
Fund meet its investment objective, but may also include fixed-income securities
issued or guaranteed by (or the direct obligations of) the governments of such
countries (including zero coupon treasury securities), when it is deemed by the
Investment Manager or Sub-Advisor that such investments are consistent with the
Fund's investment objective. For example, there may be times when the Investment
Manager or Sub-Advisor determines that the prices of government securities are
more likely to appreciate than those of equity securities. Such an occasion
might arise when inflation concerns have led to general increases in interest
rates. Such fixed-income securities which will be purchased by the Fund are
likely to be obligations of the treasuries of Australia or Japan. In addition,
the Fund may invest in fixed-income securities which are, either alone or in
combination with a warrant, option or other right, convertible into the common
stock of an issuer, when the Investment Manager or the Sub-Advisor determines
that such securities are more likely to appreciate in value than the common
stock of such issuers or when the Investment Manager or Sub-Advisor wishes to
hedge the risk inherent in the direct purchase of the equity of a given issuer,
by receiving a steady stream of interest payments. The Fund will select
convertible securities of issuers whose common stock has, in the opinion of the
Investment Manager or Sub-Advisor, a potential to appreciate in price. The Fund
may also purchase equity and fixed-income securities which are issued in private
placements and warrants or other securities conveying the right to purchase
common stock.
 
    The decisions of the Investment Manager and Sub-Advisor to invest in
securities for the Fund will be based on a general strategy of selecting those
issuers which they believe have shown a high rate of growth in earnings.
Moreover, securities will primarily be selected which possess, on both an
absolute basis and as compared with other securities in their region and around
the world, attractive price/earnings, price/cash flow and price/revenue ratios.
 
    The Fund may also purchase securities issued by various agencies and
instrumentalities of the U.S. Government. These will include obligations backed
by the full faith and credit of the United States (such as those issued by the
Government National Mortgage Association); obligations 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 (such as those issued by the
Federal National Mortgage Association); and obligations backed by the credit of
the issuing agency or instrumentality (such as those issued by the Federal Farm
Credit System).
 
    The Fund may be investing up to 10% of its total assets in securities issued
by other investment companies. Such investments are necessary in order to
participate in certain foreign markets where foreigners are prohibited from
investing directly in the securities of individual issuers. The Fund will incur
any indirect expenses incurred through investment in an investment company, such
as the payment of a management fee (which may result in the payment of an
additional advisory fee). Furthermore, it should be noted that foreign
investment companies are not subject to the U.S. securities laws and may be
subject to fewer or less stringent regulations than U.S. investment companies.
 
    The remainder of the Fund's portfolio equalling, at times, up to 35% of the
Fund's total assets, may be invested in equity and/or fixed-income and
convertible securities issued by issuers located anywhere in the world,
including the United States, subject to the Fund's investment objective. In
addition, this portion of the Fund's portfolio will consist
 
                                       11
<PAGE>
of various other financial instruments such as forward foreign exchange
contracts, futures contracts and options (see below).
 
   
    It is anticipated that the securities held by the Fund in its portfolio will
be denominated, principally, in the liquid Asian currencies and the Australian
dollar. Such currencies include the Japanese yen, Malaysian ringgit, Singapore
dollar, Hong Kong dollar, Thai baht, Philippine peso, Indonesia rupiah, Taiwan
dollar, South Korean won and Indian rupee. Securities of issuers within a given
country may be denominated in the currency of a different country.
    
 
    The Fund may also invest in securities of foreign issuers in the form of
American Depository Receipts (ADRs) or other similar securities convertible into
securities of foreign issuers. These securities may not necessarily be
denominated in the same currency as the securities into which they may be
converted. 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 United States securities markets.
 
    There may be periods during which 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. Under such
circumstances, the money market instruments in which the Fund may invest are
securities issued or guaranteed by the U.S. Government; American bank
obligations, such as certificates of deposit; Eurodollar certificates of
deposit; obligations of American savings institutions; and commercial paper of
American issuers rated within the two highest grades by Moody's Investors
Service, Inc. ("Moody's") or Standard & Poor's Corporation ("S&P") or, if not
rated, issued by a company having an outstanding debt issue rated at least AA by
S&P or Aa by Moody's.
 
RISK CONSIDERATIONS
 
   
    FOREIGN SECURITIES.  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
different currencies 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.
    
 
    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 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. The foreign currency transactions of
the Fund will be conducted on a spot basis or through forward contracts or
futures contracts (see below). The Fund may incur certain costs in connection
with these currency transactions.
 
    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. Political and economic developments in Asia may have profound
effects upon the value of a large segment of the Fund's portfolio. 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
 
                                       12
<PAGE>
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 foreign securities in which the Fund will be investing may be issued by
issuers located in developing countries. Compared to the United States and other
developed countries, developing countries may have relatively unstable
governments, economies based on only a few industries, and securities markets
which trade a small number of securities. Prices of these securities tend to be
especially volatile and, in the past, securities in these countries have offered
greater potential for gain (as well as loss) than securities of companies
located in developed countries.
 
                                  ------------
 
    To hedge against adverse price movements in the securities held in its
portfolio and the currencies in which they are denominated (as well as in the
securities it might wish to purchase and their denominated currencies) the Fund
may engage in transactions in forward foreign currency contracts, options on
securities and currencies, and futures contracts and options on futures
contracts on securities, currencies and indexes. The Fund may also purchase
options on securities to facilitate its participation in the potential
appreciation of the value of the underlying securities. A discussion of these
transactions follows and is supplemented by further disclosure in the Statement
of Additional Information.
 
FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS
 
    A forward foreign currency exchange contract ("forward contract") involves
an obligation to purchase or sell a currency at a future date, which may be any
fixed number of days from the date of the contract agreed upon by the parties,
at a price set at the time of the contract. The Fund may enter into forward
contracts as a hedge against fluctuations in future foreign exchange rates.
 
    The Fund will enter into forward contracts under various circumstances. When
the Fund enters into a contract for the purchase or sale of a security
denominated in a foreign currency, it may, for example, desire to "lock in" the
price of the security in U.S. dollars or some other foreign currency which the
Fund is temporarily holding in its portfolio. By entering into a forward
contract for the purchase or sale, for a fixed amount of dollars or other
currency, of the amount of foreign currency involved in the underlying security
transactions, the Fund will be able to protect itself against a possible loss
resulting from an adverse change in the relationship between the U.S. dollar or
other currency which is being used for the security purchase and the foreign
currency in which the security is denominated during the period between the date
on which the security is purchased or sold and the date on which payment is made
or received.
 
    At other times, when, for example, the Investment Manager or Sub-Advisor
believes that the currency of a particular foreign country may suffer a
substantial decline against the U.S. dollar or some other foreign currency, the
Fund may enter into a forward contract to sell, for a fixed amount of dollars or
other currency, the amount of foreign currency approximating the value of some
or all of the Fund's portfolio securities (or securities which the Fund has
purchased for its portfolio) denominated in such foreign currency. Under
identical circumstances, the Fund may enter into a forward contract to sell, for
a fixed amount of U.S. dollars or other currency, an amount of foreign currency
other than the currency in which the securities to be hedged are denominated
approximating the value of some or all of the
 
                                       13
<PAGE>
portfolio securities to be hedged. This method of hedging, called
"cross-hedging," will be selected when it is determined by the Investment
Manager or Sub-Advisor that the foreign currency in which the portfolio
securities are denominated has insufficient liquidity or is trading at a
discount as compared with some other foreign currency with which it tends to
move in tandem.
 
    In addition, when the Fund anticipates purchasing securities at some time in
the future, and wishes to lock in the current exchange rate of the currency in
which those securities are denominated against the U.S. dollar or some other
foreign currency, it may enter into a forward contract to purchase an amount of
currency equal to some or all of the value of the anticipated purchase, for a
fixed amount of U.S. dollars or other currency. The Fund may, however, close out
the forward contract without purchasing the security which was the subject of
the "anticipatory" hedge.
 
    Lastly, the Fund is permitted to enter into forward contracts with respect
to currencies in which certain of its portfolio securities are denominated and
on which options have been written (see "Options and Futures Transactions").
 
    In all of the above circumstances, if the currency in which the Fund's
portfolio securities (or anticipated portfolio securities) are denominated rises
in value with respect to the currency which is being purchased (or sold), then
the Fund will have realized fewer gains than had the Fund not entered into the
forward contracts. Moreover, the precise matching of the forward contract
amounts and the value of the securities involved will not generally be possible,
since the future value of such securities in foreign currencies will change as a
consequence of market movements in the value of those securities between the
date the forward contract is entered into and the date it matures. The Fund is
not required to enter into such transactions with regard to its foreign
currency-denominated securities and will not do so unless deemed appropriate by
the Investment Manager and/or Sub-Advisor.
 
    The Fund generally will not enter into a forward contract with a term of
greater than one year, although it may enter into forward contracts for periods
of up to five years. To the extent that the Fund enters into forward foreign
currency contracts to hedge against a decline in the value of portfolio holdings
denominated in a particular foreign currency resulting from currency
fluctuations, there is a risk that the Fund may nevertheless realize a gain or
loss as a result of currency fluctuations after such portfolio holdings are sold
if the Fund is unable to enter into an "offsetting" forward foreign currency
contract with the same party or another party. The Fund may be limited in its
ability to enter into hedging transactions involving forward contracts by the
Internal Revenue Code of 1986 (the "Code") requirements relating to
qualifications as a regulated investment company (see "Dividends, Distributions
and Taxes").
 
OPTIONS AND FUTURES TRANSACTIONS
 
    Call and put options on U.S. Treasury notes, bonds and bills, on various
foreign currencies and on equity securities are listed on several U.S. and
foreign securities exchanges and are written in over-the-counter transactions
("OTC options"). Listed options are issued or guaranteed by the exchange on
which they trade or by a clearing corporation such as the Options Clearing
Corporation ("OCC"). Ownership of a listed call option gives the Fund the right
to buy from the OCC (in the U.S.) or other clearing corporation or exchange, the
underlying security or currency covered by the option at the stated exercise
price (the price per unit of the underlying security or currency) by filing an
exercise notice prior to the expiration date of the option. Ownership of a
listed put option would give the Fund the right to sell the underlying security
or currency to the OCC (in the U.S.) or other clearing corporation or exchange
at the stated exercise price.
 
    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,
 
                                       14
<PAGE>
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.
 
    COVERED CALL WRITING.  The Fund is permitted to write covered call options
on portfolio securities which are denominated in either U.S. dollars or foreign
currencies and on the U.S. dollar and foreign currencies, without limit, in
order to hedge against the decline in the value of a security or currency and to
close out long call option positions. As a writer of a call option, the Fund has
the obligation, upon notice of exercise of the option, to deliver the security
or amount of currency underlying the option (certain listed and OTC call options
written by the Fund will be exercisable by the purchaser only on a specific
date).
 
    Given the Fund's objective of seeking capital appreciation, it should be
recognized that the writing of covered call options on portfolio securities will
reduce the potential for the Fund to realize capital appreciation on such
securities unless and until such time as the option expires unexercised or the
Fund enters into an "offsetting" transaction. For this reason, it is expected
that, under normal market conditions, the Fund will not write covered call
options on all or substantially all of its portfolio securities. The Fund,
however, may write covered call options on currencies in amounts representing
substantially all of the value of its foreign holdings if determined by the
Investment Manager to be appropriate to protect the Fund against the risks of
adverse fluctuations in the values of foreign currencies.
 
    PURCHASING CALL AND PUT OPTIONS.  The Fund may purchase listed and OTC call
and put options in amounts equalling up to 5% of its total assets. The Fund may
purchase call options to close out a covered call position (see "Covered Call
Writing" above) or to protect against an increase in the price of a security it
anticipates purchasing or, in the case of call options on a foreign currency, to
hedge against an adverse exchange rate change of the currency in which the
security it anticipates purchasing is denominated vis-a-vis the currency in
which the exercise price is denominated. The Fund may purchase put options on
securities which it holds in its portfolio to protect itself against a decline
in the value of the security or may purchase put options on currencies in which
such securities are denominated or a different related foreign currency to
protect itself against a decline in the value of the currency in which the
securities are denominated. There are no other limits on the Fund's ability to
purchase call and put options.
 
    FUTURES CONTRACTS.  The Fund may purchase and sell futures contracts that
are currently traded, or may in the future be traded, on U.S. and foreign
commodity exchanges on common stocks, such underlying fixed-income securities as
U.S. Treasury bonds, notes, and bills and/or any foreign government fixed-income
security ("interest rate" futures), on various currencies ("currency" futures)
and on such indexes of U.S. or foreign equity and fixed-income securities as may
exist or come into being, such as the Nikkei 225 Stock 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 for the
purpose of hedging some or all of the value of its portfolio securities (or
anticipated portfolio securities) against changes in prevailing interest rates.
The Fund will purchase or sell index futures contracts for the purpose of
hedging some or all of its portfolio (or anticipated portfolio) securities
against changes in their prices.
 
    OPTIONS ON FUTURES CONTRACTS.  The Fund may purchase and write call and put
options on futures contracts which are traded on an exchange 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
 
                                       15
<PAGE>
(in return for the premium paid) 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.
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) 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.
 
    RISKS OF OPTIONS AND FUTURES TRANSACTIONS. The Fund may close out its
position as writer of an option, or as a buyer or seller of a futures contract,
only if a liquid secondary market exists for options or futures contracts of
that series. 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.
 
    Exchanges may limit the amount by which the price of many 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.
 
    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 is that the Fund's management could be incorrect in its
expectations as to the direction or extent of various interest rate or price
movements or the time span within which the movements take place. For example,
if the Fund sold futures contracts for the sale of securities in anticipation of
an increase in interest rates, and then interest rates went down instead,
causing bond prices to rise, the Fund would lose money on the sale.
 
    Another risk which may arise in employing futures contracts to protect
against the price volatility of portfolio securities is that the prices of
securities, currencies and indexes subject to futures contracts (and thereby the
futures contract prices) may correlate imperfectly with the behavior of the U.S.
dollar cash prices of the Fund's portfolio securities and their denominated
currencies. 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 Fund, by entering into transactions in foreign futures and options
markets, will also incur risks similar to those discussed above under the
section entitled "Foreign Securities."
 
OTHER INVESTMENT POLICIES
 
    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 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, including the risks of default or
bankruptcy of the selling financial institution, the Fund follows procedures to
minimize such risks. These procedures include effecting repurchase transactions
only with large, well-capitalized and well-established financial institutions
and maintaining adequate collateralization.
 
    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
 
                                       16
<PAGE>
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 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 its net asset value.
 
    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 certain notice provisions described in the Statement of
Additional Information), 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 at least equal to the market value, determined daily,
of the loaned securities.
 
    Except as specifically noted, all investment objectives, policies and
practices discussed above are not fundamental policies of the Fund and, as such,
may be changed without shareholder approval.
 
    YEAR 2000.  The investment management and advisory services provided to the
Fund by the Investment Manager and the Sub-Advisor 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 Sub-Advisor, the Distributor and the
Transfer Agent have been actively working on necessary changes
 
                                       17
<PAGE>
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.
 
    In addition, it is possible that the markets for securities in which the
Fund invests may be detrimentally affected by computer failures throughout the
financial services industry beginning January 1, 2000. Improperly functioning
trading systems may result in settlement problems and liquidity issues. In
addition, corporate and governmental data processing errors may result in
production problems for individual companies and overall economic uncertainties.
Earnings of individual issuers will be affected by remediation costs, which may
be substantial and may be reported inconsistently in U.S. and foreign financial
statements. Accordingly, the Fund's investments may be adversely affected.
 
PORTFOLIO MANAGEMENT
 
    The Fund's portfolio is actively managed by its Investment Manager and the
Sub-Advisor 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 and the Sub-Advisor will rely on information
from various sources, including research, analysis and appraisals of brokers and
dealers, including Dean Witter Reynolds Inc., Morgan Stanley & Co. Incorporated
and other broker-dealers that are affiliates of the Investment Manager, and the
Investment Manager's and Sub-Advisor's own analysis of factors they deem
relevant.
 
    Timothy Jensen, Principal of the Sub-Advisor, and Ashutosh Sinha, Vice
President of the Sub-Advisor, each a member of the Sub-Advisor's emerging
markets group, are the primary portfolio managers of the Fund. Prior to joining
the Sub-Advisor in January 1998, Mr. Jensen was a Partner at Ardsley Partners
(July, 1994-December, 1997) and prior thereto was a Vice President of Bankers
Trust (June, 1993-June, 1994). Prior to joining the Sub-Advisor in June, 1995,
Mr. Sinha was an analyst at SBI Funds Management Ltd. (1993-1995).
 
    Personnel of the Investment Manager and Sub-Advisor have 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.
 
   
    Orders for transactions in portfolio securities and commodities may be
placed for the Fund with a number of brokers and dealers, including DWR, Morgan
Stanley & Co. Incorporated and other broker-dealer affiliates of the Investment
Manager and Sub-Advisor. Pursuant to an order of the Securities and Exchange
Commission, the Fund may effect principal transactions in certain money market
instruments with Dean Witter Reynolds Inc. In addition, the Fund may incur
brokerage commissions on transactions conducted through Dean Witter Reynolds
Inc., Morgan Stanley & Co. Incorporated and other brokers and dealers that are
affiliates of the Investment Manager and the Sub-Advisor.
    
 
    Although the Fund does not intend to engage in short-term trading, it may
sell portfolio securities without regard to the length of time that they have
been held when such sale will, in the opinion of the Investment Manager or
Sub-Advisor, contribute to the Fund's investment objective. It is not
anticipated that the Fund's portfolio turnover rate will exceed 100% in any one
year.
 
    The expenses of the Fund relating to its portfolio management are likely to
be greater than those incurred by other investment companies investing primarily
in securities issued by domestic issuers as custodial costs, brokerage
commissions and other transaction charges related to investing in foreign
markets are generally higher than in the United States.
 
                                       18
<PAGE>
INVESTMENT RESTRICTIONS
- --------------------------------------------------------------------------------
 
    The investment restrictions listed below are among the restrictions which
have been adopted by the Fund as fundamental policies. Under the Investment
Company Act of 1940, as amended (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. For purposes of the following limitations: (i)
all percentage limitations apply immediately after a purchase or initial
investment, and (ii) any subsequent change in any applicable percentage
resulting from market fluctuations or other changes in total or net assets does
not require elimination of any security from the portfolio.
 
    The Fund may not:
 
   1. As to 75% of its total assets, 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. As to 75% of its total assets, 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.
 
   4. 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.
 
   5. Purchase securities of other investment companies, except in connection
with a merger, consolidation, reorganization or acquisition of assets or in
accordance with the provisions of Section 12(d) of the Act and any rules
promulgated thereunder (e.g., the Fund may not invest in more than 3% of the
outstanding voting securities of any investment company).
 
   6. Invest more than 10% of its total assets in illiquid securities and
repurchase agreements which have a maturity of longer than seven days.
 
    Generally, OTC options and the assets used as "cover" for written OTC
options are "illiquid securities" (securities for which no active and
substantial secondary market exists). However, the Fund is permitted to treat
the securities it uses as cover for written OTC options as liquid provided it
follows a procedure whereby it will sell OTC options only to qualified dealers
who agree that the Fund may repurchase such options at a maximum price to be
calculated pursuant to a predetermined formula set forth in the option
agreement. The formula may vary from agreement to agreement, but is generally
based on a multiple of the premium received by the Fund for writing the option
plus the amount, if any, of the option's intrinsic value. An OTC option is
considered an illiquid asset only to the extent that the maximum repurchase
price under the formula exceeds the intrinsic value of the option.
 
    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.
 
PURCHASE OF FUND SHARES
- --------------------------------------------------------------------------------
 
GENERAL
 
    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
Morgan Stanley Dean Witter Distributors Inc. ("MSDW Distributors" or the
"Distributor"), an affiliate of the Investment Manager, shares of the Fund are
distributed by the Distributor and offered by Dean Witter Reynolds Inc. ("DWR"),
a selected dealer and subsidiary of Morgan Stanley Dean
 
                                       19
<PAGE>
   
Witter & Co., and other dealers who have entered into selected dealer agreements
with the Distributor ("Selected Broker-Dealers"). It is anticipated that DWR
will undergo a change of corporate name which is expected to incorporate the
brand name of "Morgan Stanley Dean Witter," pending approval of various
regulatory authorities. 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 Directors 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 Morgan Stanley Dean Witter Funds that are
multiple class funds ("Morgan Stanley Dean Witter Multi-Class Funds") and shares
of Morgan Stanley Dean Witter Funds sold with a front-end sales charge ("FSC
Funds") and concurrent investments in Class D shares of the Fund and other
Morgan Stanley Dean Witter Multi-Class Funds will be aggregated. Subsequent
purchases of $100 or more may be made by sending a check, payable to Morgan
Stanley Dean Witter Pacific Growth Fund Inc., directly to Morgan Stanley Dean
Witter Trust FSB (the "Transfer Agent" or "MSDW Trust") at P.O. Box 1040, Jersey
City, NJ 07303 or by contacting a Morgan Stanley Dean Witter Financial Advisor
or other Selected Broker-Dealer representative. 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, an automatic
purchase plan (see "Shareholder Services"), is $100, provided that the schedule
of automatic investments will result in investments totalling at least $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 MSDW
Advisors mutual fund asset allocation program and (iii) fee-based programs
 
                                       20
<PAGE>
approved by the Distributor, pursuant to which participants pay an asset based
fee for services in the nature of investment advisory, administrative and/ or
brokerage 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 a request is made 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. 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 gain 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 at the time of their sale 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 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. See "Initial Sales Charge Alternative--Class A Shares."
 
                                       21
<PAGE>
    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 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
 
                                       22
<PAGE>
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 Morgan
Stanley Dean Witter Multi-Class Funds, shares of FSC Funds and shares of Morgan
Stanley 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:
 
                                       23
<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 Morgan Stanley 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 Morgan Stanley 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 Morgan Stanley Dean Witter Funds
previously purchased at a price including a front-end sales charge (including
shares of the Fund and other Morgan Stanley 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 order is
placed by mail. The reduced sales charge will not be granted if: (a) such
notification is not
 
                                       24
<PAGE>
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 Morgan Stanley 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 Morgan Stanley 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 MSDW Trust (which is 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, administrative and/or brokerage 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 MSDW Trust 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 MSDW Trust 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 Morgan Stanley Dean Witter Financial
Advisor who joined Morgan Stanley 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 Financial Advisor'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 CDSC will be
imposed on any redemption of
 
                                       25
<PAGE>
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 MSDW Trust 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 Morgan Stanley 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
 
                                       26
<PAGE>
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
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;
    
 
    (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, MSDW Services, as self-directed investment
alternatives and for which MSDW Trust 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.
 
   
    (4) certain redemptions pursuant to the Fund's Systematic Withdrawal Plan
(see "Shareholder Services--Systematic Withdrawal Plan").
    
 
    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 have been designated Class B shares. Shares held before May 1, 1997 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 MSDW Trust
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 Morgan Stanley Dean Witter Multi-Class
Fund purchased by that plan. In the
 
                                       27
<PAGE>
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
shares of a Morgan Stanley 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 Directors 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 MSDW Trust 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 MSDW Advisors 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, administrative and/or brokerage 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) employee benefit plans
maintained by Morgan Stanley Dean Witter & Co. or any of its subsidiaries for
the benefit of certain employees of Morgan
    
 
                                       28
<PAGE>
   
Stanley Dean Witter & Co. and its subsidiaries; (iv) certain Unit Investment
Trusts sponsored by DWR; (v) certain other open-end investment companies whose
shares are distributed by the Distributor; (vi) investors who were shareholders
of Dean Witter Retirement Series on September 11, 1998 (with respect to
additional purchases for their former Dean Witter Retirement Series account);
and (vii) other categories of investors, at the discretion of the Board, as
disclosed in the then current prospectus of the Fund. 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 a single
transaction in Class D shares of the Fund and other Morgan Stanley 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
Morgan Stanley Dean Witter Multi-Class Funds, shares of FSC Funds and shares of
Morgan Stanley 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 Morgan Stanley Dean Witter
Financial Advisors 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.
 
                                       29
<PAGE>
    For the fiscal year ended October 31, 1997, Class B shares of the Fund
accrued payments under the Plan amounting to $14,155,635, which amount is equal
to 1.0% of the average daily net assets of Class B for the fiscal year. These
payments were calculated pursuant to clause (b) of the compensation formula
under the Plan. All shares held prior to July 28, 1997 have been designated
Class B shares. For the fiscal period July 28 through October 31, 1997, Class A
and Class C shares of the Fund accrued payments under the Plan amounting to $278
and $1,074, respectively, which amounts on an annualized basis are equal to
0.25% and 1.00% 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
$41,117,586 at October 31, 1997, which was equal to 5.53% 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 Directors 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 Morgan Stanley Dean Witter Financial Advisors
and other Selected Broker-Dealer representatives 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
Morgan Stanley Dean Witter Financial Advisors and other Selected Broker-Dealer
representatives at the time of sale totalled $11,148 in the case of Class C at
December 31, 1997, which amount was equal to 1.67% 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 value of 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
 
                                       30
<PAGE>
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 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 procedures adopted by the
Directors); and (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. When market quotations are not readily
available, including circumstances under which it is determined by the
Investment Manager or Sub-Advisor 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 Fund's Directors. For valuation purposes, quotations
of foreign portfolio securities, other assets and liabilities and forward
contracts stated in foreign currency are translated into U.S. dollar equivalents
at the prevailing market rates prior to the close of the New York Stock
Exchange. Dividends receivable are accrued as of the ex-dividend date or as of
the time that the relevant ex-dividend date and amounts become known.
 
    Short-term debt securities with remaining maturities of sixty days or less
to maturity at the time of purchase are valued at amortized cost, unless the
Directors 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
Directors.
 
    Certain securities in the Fund's portfolio may be valued by an outside
pricing service approved by the Fund's Directors. 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.
 
    Generally, trading in foreign securities, as well as corporate bonds, United
States government securities and money market instruments, is substantially
completed each day at various times prior to 4:00 p.m., New York time. The
values of such securities used in computing the net asset value of the Fund's
shares are determined as of such times. Foreign currency exchange rates are also
generally determined prior to 4:00 p.m., New York time. Occasionally, events
which may affect the values of such securities and such exchange rates may occur
between the times at which they are determined and 4:00 p.m., New York time, and
will therefore not be reflected in the computation of the Fund's net asset
value. If events that may affect the value of such securities occur during such
period, then these securities may be valued at their fair value as determined in
good faith under procedures established by and under the supervision of the
Directors.
 
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 Morgan Stanley Dean Witter Fund), unless the
shareholder requests that they be paid in cash. Shares so acquired are acquired
 
                                       31
<PAGE>
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 Morgan Stanley 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").
 
    INVESTMENT OF DIVIDENDS OR 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").
 
    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 advisor.
 
    For further information regarding plan administration, custodial fees and
other details, investors should contact their Morgan Stanley Dean Witter
Financial Advisor or other Selected Broker-Dealer representative or the Transfer
Agent.
 
   
    SYSTEMATIC WITHDRAWAL PLAN.  A systematic withdrawal plan (the "Withdrawal
Plan") is available for shareholders whose shares of Morgan Stanley Dean Witter
Funds have an aggregate value of $10,000 or more. Shares of any Fund from which
redemptions will be made pursuant to the Plan must have a value of $1,000 or
more (referred to as a "SWP Fund"). The required share values are determined on
the date the shareholder establishes the Withdrawal Plan. The Withdrawal Plan
provides for monthly, quarterly, semi-annual or annual payments in any amount
not less than $25, or in any whole percentage of the value of the SWP Funds'
shares, on an annualized basis. Any applicable CDSC will be imposed on shares
redeemed under the Withdrawal Plan (see "Purchase of Fund Shares"), except that
the CDSC, if any, will be waived on redemptions under the Withdrawal Plan of up
to 12% annually of the value of each SWP Fund account, based on the share values
next determined after the shareholder establishes the Withdrawal Plan.
Redemptions for which this CDSC waiver policy applies may be in amounts up to 1%
per month, 3% per quarter, 6% semi-annually or 12% annually. Under this CDSC
waiver policy, amounts withdrawn each period will be paid by first redeeming
shares not subject to a CDSC because the shares were purchased by the
reinvestment of dividends or capital gains distributions, the CDSC period has
elapsed or some other waiver of the CDSC applies. If shares subject to a CDSC
must be redeemed, shares held for the longest period of time will be redeemed
first and continuing with shares held the next longest period of time until
shares held the shortest period of time are redeemed. 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, quarterly, semi-annual or annual
amount.
    
 
   
    A shareholder may suspend or terminate participation in the Withdrawal Plan
at any time. A shareholder who has suspended participation may resume payments
under the Withdrawal Plan, without requiring a new determination of the
    
 
                                       32
<PAGE>
   
account value for the 12% CDSC waiver. The Withdrawal Plan may be terminated or
revised at any time by the Fund.
    
 
   
    Prior to adding an additional SWP Fund to an existing Withdrawal Plan, the
required $10,000/$1,000 share values must be met, to be calculated on the date
the shareholder adds the additional SWP Fund. However, the addition of a new SWP
Fund will not change the account value for the 12% CDSC waiver for the SWP Funds
already participating in the Withdrawal Plan.
    
 
   
    Withdrawal Plan payments should not be considered 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.
    
 
    Shareholders should contact their Morgan Stanley Dean Witter Financial
Advisor or other Selected Broker-Dealer representative 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 Morgan Stanley Dean Witter Multi-Class Fund without the imposition of any
exchange fee. Shares may also be exchanged for shares of the following funds:
Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust, Morgan Stanley Dean
Witter Limited Term Municipal Trust, Morgan Stanley Dean Witter Short-Term Bond
Fund and five Morgan Stanley Dean Witter funds which are money market funds (the
"Exchange Funds"). Class A shares may also be exchanged for shares of Morgan
Stanley Dean Witter Multi-State Municipal Series Trust and Morgan Stanley Dean
Witter Hawaii Municipal Trust, which are Morgan Stanley Dean Witter Funds sold
with a front-end sales charge ("FSC Funds"). 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 Morgan Stanley Dean Witter Multi-Class Fund, any FSC
Fund 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 Morgan
Stanley Dean Witter Multi-Class Funds, FSC Funds 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 Morgan Stanley Dean Witter
Multi-Class Fund, the holding period previously frozen when the first exchange
was made resumes on the last day of the month in which shares of a Morgan
Stanley Dean Witter Multi-Class Fund are reacquired. Thus, the CDSC is based
upon the time (calculated as described above) the shareholder was invested in
shares of a Morgan Stanley Dean Witter Multi-Class Fund (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
    
 
                                       33
<PAGE>
   
was invested in shares of a FSC Fund. In the case of shares of the Fund
exchanged into an Exchange Fund, 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 Class B shares of another
Morgan Stanley 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 re-exchanged 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 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
Morgan Stanley 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. Also, the Exchange Privilege may be
terminated or revised at any time by the Fund and/or any of such Morgan Stanley
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 Morgan Stanley Dean Witter Financial Advisor or other Selected
Broker-Dealer representative 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 Morgan
Stanley Dean Witter Funds (for which the Exchange Privilege is available)
pursuant to this Exchange Privilege by contacting their Morgan Stanley Dean
Witter Financial Advisor or other Selected Broker-Dealer representative (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
 
                                       34
<PAGE>
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 Form and who is unable to
reach the Fund by telephone should contact his or her Morgan Stanley Dean Witter
Financial Advisor or other Selected Broker-Dealer representative, 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 Morgan Stanley Dean Witter Funds in the past.
 
    For further information regarding the Exchange Privilege, shareholders
should contact their Morgan Stanley Dean Witter Financial Advisor or other
Selected Broker-Dealer representative or the Transfer Agent.
 
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, N.J. 07303 is required. If certificates are held
by the shareholder, 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 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-Dealer, reduced by any
applicable CDSC.
 
    The CDSC, if any, will be the only fee imposed upon repurchase 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; e.g., when normal trading is not taking place on the New
 
                                       35
<PAGE>
York Stock Exchange. If the shares to be redeemed have recently been purchased
by check (including a certified or bank cashier's 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 Morgan Stanley Dean Witter Financial Advisor or other Selected
Broker-Dealer representative 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 to redeem, on sixty
days notice and at net asset value, the shares of any shareholder (other than
shares held in an Individual Retirement Account or custodial account under
Section 403(b)(7) of the Code) 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 Directors 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 the shareholder sixty days to make an
additional investment in an amount which will increase the value of the 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 dividends and to distribute
substantially all of the Fund's net investment income and net realized
short-term and 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 continue to distribute all of its net
investment income and net short-term capital gains to shareholders and otherwise
qualify as a regulated investment company under Subchapter M of the Code, it is
not expected that the Fund will be required to pay any federal income tax on
such income and capital gains.
 
                                       36
<PAGE>
    Gains or losses on the Fund's transactions in certain listed options on
securities and on futures and options on futures traded on U.S. exchanges
generally are treated as 60% long-term gain or loss and 40% short-term gain or
loss. 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 gains being available for distribution.
 
    Shareholders will normally have to pay federal income taxes, and any
applicable state and/or local 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 and net short-term capital gains,
are taxable to the shareholder as ordinary dividend income regardless of whether
the shareholder receives such distributions in additional shares or in cash. Any
dividends declared in the last quarter of any calendar year which are paid in
the following calendar year prior to February 1, will be deemed, for tax
purposes, to have been received by the shareholder in the prior calendar year.
 
    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. It is not anticipated that any portion of the
Fund's distributions will be eligible for the dividends received deduction to
corporate shareholders.
 
    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.
 
    After the end of the year, shareholders will receive full information on
their dividends and capital gains distributions for tax purposes. 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 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.
 
    Dividends, interest and gains received by the Fund may give rise to
withholding and other taxes imposed by foreign countries. If it qualifies for
and has made the appropriate election with the Internal Revenue Service, the
Fund will report annually to its shareholders the amount per share of such
taxes, to enable shareholders to claim United States foreign tax credits or
deductions with respect to such taxes. In the absence of such an election, the
Fund would deduct foreign tax in computing the amount of its distributable
income.
 
    The foregoing discussion relates solely to the federal income tax
consequences of an investment in the Fund. Distributions may also be subject to
state and local taxes; therefore, each shareholder is advised to consult his or
her own tax advisor.
 
PERFORMANCE INFORMATION
- --------------------------------------------------------------------------------
 
    From time to time the Fund may quote its "total return" in advertisements
and sales literature. These figures are computed separately for Class A, Class
B, Class C and Class D shares. The total return of the Fund is based on
historical earnings and is not intended to indicate future
 
                                       37
<PAGE>
performance. 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 a period of one
year 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 stated periods.
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, and
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.).
 
ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------
 
    VOTING RIGHTS.  All shares of the Fund are of common stock 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 Class C bear the expenses related to the distribution of their respective
shares.
 
    The Fund is not required to hold Annual Meetings of Shareholders and, in
ordinary circumstances, the Fund does not intend to hold such meetings. The
Directors may call Special Meetings of Shareholders for action by shareholder
vote as may be required by the Act or the Fund's By-Laws. Under certain
circumstances, the Directors may be removed by action of the Directors or by the
Shareholders.
 
    CODE OF ETHICS.  Directors, officers and employees of MSDW Advisors, MSDW
Services and MSDW Distributors 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 Morgan
Stanley 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
Morgan Stanley Dean Witter Fund managed by them. Any violations of the Code of
Ethics are subject to sanctions, including reprimand, demotion or suspension or
termination
 
                                       38
<PAGE>
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.
 
    The Fund's Sub-Advisor also has a Code of Ethics which complies with
regulatory requirements and, insofar as it relates to persons associated with
the Fund, 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.
 
                                       39
<PAGE>
Morgan Stanley Dean Witter
Pacific Growth Fund Inc.
Two World Trade Center
New York, New York 10048
 
DIRECTORS
 
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
Thomas F. Caloia
Treasurer
 
CUSTODIAN
 
The Chase Manhattan Bank
One Chase Plaza
New York, NY 10005
 
TRANSFER AGENT AND
DIVIDEND DISBURSING AGENT
 
Morgan Stanley Dean Witter Trust FSB
Harborside Financial Center
Plaza Two
Jersey City, New Jersey 07311
 
INDEPENDENT ACCOUNTANTS
 
PricewaterhouseCoopers LLP
1177 Avenue of the Americas
New York, New York 10036
 
INVESTMENT MANAGER
 
Morgan Stanley Dean Witter Advisors Inc.
 
SUB-ADVISOR
 
Morgan Stanley Asset Management Inc.
 
MORGAN STANLEY
DEAN WITTER
PACIFIC GROWTH
FUND
 
   
                               [PHOTO]
                                                  PROSPECTUS -- NOVEMBER 2, 1998
    
<PAGE>
   
STATEMENT OF ADDITIONAL INFORMATION
NOVEMBER 2, 1998                          MORGAN STANLEY
                                          DEAN WITTER
                                          PACIFIC GROWTH
                                          FUND INC.
    
 
- ------------------------------------------------------------
 
    Morgan Stanley Dean Witter Pacific Growth Fund Inc. (the "Fund") is an
open-end, diversified management investment company, whose investment objective
is to maximize the capital appreciation of its investments. The Fund seeks to
achieve its investment objective by investing primarily in securities issued by
issuers located in Asia, Australia and New Zealand.
 
   
    A Prospectus for the Fund dated November 2, 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, Morgan Stanley 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.
    
 
Morgan Stanley Dean Witter
Pacific Growth Fund Inc.
Two World Trade Center
New York, New York 10048
(212) 392-2550 or
(800) 869-NEWS (toll-free)
<PAGE>
TABLE OF CONTENTS
- --------------------------------------------------------------------------------
 
   
<TABLE>
<S>                                                                                      <C>
The Fund and its Management............................................................          3
 
Directors and Officers.................................................................          8
 
Investment Practices and Policies......................................................         13
 
Investment Restrictions................................................................         28
 
Portfolio Transactions and Brokerage...................................................         29
 
The Distributor........................................................................         31
 
Determination of Net Asset Value.......................................................         36
 
Purchase of Fund Shares................................................................         36
 
Shareholder Services...................................................................         39
 
Redemptions and Repurchases............................................................         44
 
Dividends, Distributions and Taxes.....................................................         46
 
Performance Information................................................................         48
 
Description of Common Stock............................................................         49
 
Custodian and Transfer Agent...........................................................         49
 
Independent Accountants................................................................         50
 
Reports to Shareholders................................................................         50
 
Legal Counsel..........................................................................         50
 
Experts................................................................................         50
 
Registration Statement.................................................................         50
 
Financial Statements--October 31, 1997.................................................         51
 
Report of Independent Accountants......................................................         75
 
Financial Statements--April 30, 1998 (unaudited).......................................         76
</TABLE>
    
 
                                       2
<PAGE>
THE FUND AND ITS MANAGEMENT
- --------------------------------------------------------------------------------
 
THE FUND
 
    The Fund was incorporated under the laws of the state of Maryland on June
13, 1990 under the name "Dean Witter Pacific Growth Fund Inc." On June 22, 1998,
the Directors of the Fund adopted an Amendment to the Certificate of
Incorporation of the Fund changing the name of the Fund to Morgan Stanley Dean
Witter Pacific Growth Fund Inc.
 
THE INVESTMENT MANAGER
 
    Morgan Stanley Dean Witter Advisors Inc. (the "Investment Manager" or "MSDW
Advisors"), a Delaware corporation, whose address is Two World Trade Center, New
York, New York 10048, is the Fund's Investment Manager. MSDW Advisors is a
wholly-owned subsidiary of Morgan Stanley Dean Witter & Co. ("MSDW"), a Delaware
corporation. The daily management of the Fund and research relating to the
Fund's portfolio are conducted by or under the direction of officers of the Fund
and of the Investment Manager and the Sub-Advisor, subject to review by the
Fund's Board of Directors. Information as to these Directors and officers is
contained under the caption "Directors and Officers."
 
    MSDW Advisors is the investment manager or investment advisor of the
following investment companies, which are collectively referred to as the
"Morgan Stanley Dean Witter Funds":
 
   
<TABLE>
<CAPTION>
OPEN-END FUNDS
 
<C>        <S>
        1  Active Assets California Tax-Free Trust
        2  Active Assets Government Securities Trust
        3  Active Assets Money Trust
        4  Active Assets Tax-Free Trust
        5  Morgan Stanley Dean Witter American Value Fund
        6  Morgan Stanley Dean Witter Balanced Growth Fund
        7  Morgan Stanley Dean Witter Balanced Income Fund
        8  Morgan Stanley Dean Witter California Tax-Free Daily Income Trust
        9  Morgan Stanley Dean Witter California Tax-Free Income Fund
       10  Morgan Stanley Dean Witter Capital Appreciation Fund
       11  Morgan Stanley Dean Witter Capital Growth Securities
       12  Morgan Stanley Dean Witter Competitive Edge Fund, "BEST IDEAS" Portfolio
       13  Morgan Stanley Dean Witter Convertible Securities Trust
       14  Morgan Stanley Dean Witter Developing Growth Securities Trust
       15  Morgan Stanley Dean Witter Diversified Income Trust
       16  Morgan Stanley Dean Witter Dividend Growth Securities Inc.
       17  Morgan Stanley Dean Witter Equity Fund
       18  Morgan Stanley Dean Witter European Growth Fund Inc.
       19  Morgan Stanley Dean Witter Federal Securities Trust
       20  Morgan Stanley Dean Witter Financial Services Trust
       21  Morgan Stanley Dean Witter Fund of Funds
       22  Morgan Stanley Dean Witter Global Dividend Growth Securities
       23  Morgan Stanley Dean Witter Global Short-Term Income Fund Inc.
       24  Morgan Stanley Dean Witter Global Utilities Fund
       25  Morgan Stanley Dean Witter Growth Fund
       26  Morgan Stanley Dean Witter Hawaii Municipal Trust
       27  Morgan Stanley Dean Witter Health Sciences Trust
       28  Morgan Stanley Dean Witter High Yield Securities Inc.
       29  Morgan Stanley Dean Witter Income Builder Fund
       30  Morgan Stanley Dean Witter Information Fund
       31  Morgan Stanley Dean Witter Intermediate Income Securities
       32  Morgan Stanley Dean Witter International SmallCap Fund
</TABLE>
    
 
                                       3
<PAGE>
   
<TABLE>
<C>        <S>
       33  Morgan Stanley Dean Witter Japan Fund
       34  Morgan Stanley Dean Witter Limited Term Municipal Trust
       35  Morgan Stanley Dean Witter Liquid Asset Fund Inc.
       36  Morgan Stanley Dean Witter Market Leader Trust
       37  Morgan Stanley Dean Witter Mid-Cap Dividend Growth Securities
       38  Morgan Stanley Dean Witter Mid-Cap Growth Fund
       39  Morgan Stanley Dean Witter Multi-State Municipal Series Trust
       40  Morgan Stanley Dean Witter Natural Resource Development Securities Inc.
       41  Morgan Stanley Dean Witter New York Municipal Money Market Trust
       42  Morgan Stanley Dean Witter New York Tax-Free Income Fund
       43  Morgan Stanley Dean Witter Pacific Growth Fund Inc.
       44  Morgan Stanley Dean Witter Precious Metals and Minerals Trust
       45  Morgan Stanley Dean Witter Select Dimensions Investment Series
       46  Morgan Stanley Dean Witter Select Municipal Reinvestment Fund
       47  Morgan Stanley Dean Witter Short-Term Bond Fund
       48  Morgan Stanley Dean Witter Short-Term U.S. Treasury Trust
       49  Morgan Stanley Dean Witter Special Value Fund
       50  Morgan Stanley Dean Witter S&P 500 Index Fund
       51  Morgan Stanley Dean Witter S&P 500 Select Fund
       52  Morgan Stanley Dean Witter Strategist Fund
       53  Morgan Stanley Dean Witter Tax-Exempt Securities Trust
       54  Morgan Stanley Dean Witter Tax-Free Daily Income Trust
       55  Morgan Stanley Dean Witter U.S. Government Money Market Trust
       56  Morgan Stanley Dean Witter U.S. Government Securities Trust
       57  Morgan Stanley Dean Witter Utilities Fund
       58  Morgan Stanley Dean Witter Value-Added Market Series
       59  Morgan Stanley Dean Witter Value Fund
       60  Morgan Stanley Dean Witter Variable Investment Series
       61  Morgan Stanley Dean Witter World Wide Income Trust
<CAPTION>
 
CLOSED-END FUNDS
<C>        <S>
        1  InterCapital California Insured Municipal Income Trust
        2  InterCapital California Quality Municipal Securities
        3  Dean Witter Government Income Trust
        4  High Income Advantage Trust
        5  High Income Advantage Trust II
        6  High Income Advantage Trust III
        7  InterCapital Income Securities Inc.
        8  InterCapital Insured California Municipal Securities
        9  InterCapital Insured Municipal Bond Trust
       10  InterCapital Insured Municipal Income Trust
       11  InterCapital Insured Municipal Securities
       12  InterCapital Insured Municipal Trust
       13  Municipal Income Opportunities Trust
       14  Municipal Income Opportunities Trust II
       15  Municipal Income Opportunities Trust III
       16  Municipal Income Trust
       17  Municipal Income Trust II
       18  Municipal Income Trust III
       19  Municipal Premium Income Trust
       20  InterCapital New York Quality Municipal Securities
       21  Morgan Stanley Dean Witter Prime Income Trust
       22  InterCapital Quality Municipal Income Trust
</TABLE>
    
 
                                       4
<PAGE>
<TABLE>
<C>        <S>
       23  InterCapital Quality Municipal Investment Trust
       24  InterCapital Quality Municipal Securities
</TABLE>
 
    In addition, Morgan Stanley Dean Witter Services Company Inc. ("MSDW
Services"), a wholly-owned subsidiary of MSDW Advisors, serves as manager for
the following investment companies for which TCW Funds Management, Inc. is the
investment advisor (the "TCW/DW Funds"):
<TABLE>
<CAPTION>
OPEN-END FUNDS
 
<C>        <S>
        1  TCW/DW Emerging Markets Opportunities Trust
        2  TCW/DW Global Telecom Trust
        3  TCW/DW Income and Growth Fund
        4  TCW/DW Latin American Growth Fund
        5  TCW/DW Mid-Cap Equity Trust
        6  TCW/DW North American Government Income Trust
        7  TCW/DW Small Cap Growth Fund
        8  TCW/DW Total Return Trust
 
<CAPTION>
 
CLOSED-END FUNDS
<C>        <S>
 
        1  TCW/DW Term Trust 2000
        2  TCW/DW Term Trust 2002
        3  TCW/DW Term Trust 2003
</TABLE>
 
    MSDW Advisors also serves as: (i) administrator of The BlackRock Strategic
Term Trust Inc., a closed-end investment company; (ii) sub-administrator of
Templeton Global Governments Income Trust, a closed-end investment company; and
(iii) investment advisor 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 the International Active
Assets Account program and are neither citizens nor residents of the United
States.
 
    Pursuant to an Investment Management Agreement (the "Management Agreement")
with the Investment Manager, the Fund has retained the Investment Manager to
supervise the investment of the Fund's assets. The Investment Manager, through
consultation with Morgan Stanley Asset Management Inc. (the "Sub-Advisor") and
through its own portfolio management staff, obtains and evaluates such
information and advice relating to the economy, securities markets, and specific
securities as it considers necessary or useful to continuously oversee the
management of the assets of the Fund in a manner consistent with its investment
objective.
 
    Under the terms of the Management Agreement, the Investment Manager also
maintains certain of the Fund's books and records and furnishes, at its own
expense, such office space, facilities, equipment, clerical help and 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. The Investment Manager has retained MSDW Services to provide its
administrative services under the Agreement.
 
   
    Expenses not expressly assumed by the Investment Manager under the
Management Agreement, by the Sub-Advisor pursuant to the Sub-Advisory Agreement
(see below), or by the Distributor of the Fund's shares, Morgan Stanley Dean
Witter Distributors Inc. ("MSDW 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 include, but are not limited to: expenses of the
    
 
                                       5
<PAGE>
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 directors' meetings and of
preparing, printing and mailing of proxy statements and reports to shareholders;
fees and travel expenses of Directors or members of any advisory board or
committee who are not employees of the Investment Manager or Sub-Advisor or any
corporate affiliate of the Investment Manager or Sub-Advisor; 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 the Fund's legal counsel, including counsel to the Directors who are not
interested persons of the Fund or of the Investment Manager or Sub-Advisor (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 directors) 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 Directors.
 
    The Management 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 Management Agreement in no
way restricts the Investment Manager from acting as investment manager or
advisor to others.
 
    Pursuant to a sub-advisory agreement between the Investment Manager and
Sub-Advisor (the "Sub-Advisory Agreement"), the Sub-Advisor has been retained,
subject to the overall supervision of the Investment Manager and the Directors
of the Fund, to continuously furnish investment advice concerning individual
security selections, asset allocations and overall economic trends with respect
to Pacific basin issuers and to manage the portion of the Fund's portfolio
invested in securities issued by issuers located in Asia, Australia and New
Zealand, subject to the supervision of the Investment Manager. On occasion, the
Sub-Advisor will also provide the Investment Manager with investment advice
concerning potential investment opportunities for the Fund which are available
outside of Asia, Australia and New Zealand.
 
   
    Morgan Stanley Asset Management Inc. ("MSAM"), a subsidiary of Morgan
Stanley Dean Witter & Co. and an affiliate of the Investment Manager, whose
address is 1221 Avenue of the Americas, New York, New York 10020, became the
Fund's Sub-Advisor effective November 1, 1998. MSAM, together with its
affiliated asset management companies, conducts a worldwide portfolio management
business and provides a broad range of portfolio management services to
customers in the United States and abroad. As of September 30, 1998 MSAM,
together with its affiliated asset management companies, had approximately
$156.3 billion in assets under management as an investment manager or as a
fiduciary advisor. MSAM has been managing international securities since 1986.
    
 
   
    Prior to November, 1998 the Fund was sub-advised by Morgan Grenfell
Investment Services Limited (the "Former Sub-Advisor") pursuant to a
sub-advisory agreement between the Investment Manager and the Former Sub-Advisor
(the "Prior Sub-Advisory Agreement"). In May, 1998, the Former Sub-Advisor
indicated its intention to resign and on June 2, 1998, the Board of Directors
recommended that the Sub-Advisory Agreement with MSAM described above be
submitted to shareholders for approval. The shareholders of the Fund approved
the Sub-Advisory Agreement on August 18, 1998 and the Sub-Advisory Agreement
became effective on November 1, 1998.
    
 
                                       6
<PAGE>
    At the same time that the Sub-Advisory Agreement took effect, the Investment
Manager and the Fund amended the Management Agreement between the Investment
Manager and the Fund to reduce the fee paid by the Fund to the Investment
Manager as full compensation for the services and facilities furnished to the
Fund and for expenses of the Fund assumed by the Investment Manager under the
Management Agreement from an annual rate of 1.00% of the portion of daily net
assets not exceeding $1 billion; 0.95% of the portion of daily net assets
exceeding $1 billion but not exceeding $2 billion; and 0.90% of the portion of
daily net assets exceeding $2 billion to an annual rate of 0.95% of the portion
of daily net assets not exceeding $1 billion; 0.90% of daily net assets
exceeding $1 billion but not exceeding $2 billion; and 0.85% of the portion of
daily net assets exceeding $2 billion. The management fee is allocated among the
Classes pro rata based on the net assets of the Fund attributable to each Class.
For the fiscal years ended October 31, 1995, 1996 and 1997, the Fund accrued to
the Investment Manager total compensation under the Investment Management
Agreement of $14,008,538, $16,242,482 and $13,946,846, respectively.
 
    Both the Investment Manager and the Sub-Advisor have authorized any of their
directors, officers and employees who have been elected as Directors or officers
of the Fund to serve in the capacities in which they have been elected. Services
furnished by the Investment Manager and the Sub-Advisor may be furnished by
directors, officers and employees of the Investment Manager and the Sub-Advisor.
In connection with the services rendered by the Sub-Advisor, the Sub-Advisor
bears the following expenses: (a) the salaries and expenses of its personnel;
and (b) all expenses incurred by it in connection with performing the services
provided by it as Sub-Advisor, as described above.
 
    As full compensation for the services and facilities furnished to the Fund
and the Investment Manager and expenses of the Fund and the Investment Manager
assumed by the Sub-Advisor, the Investment Manager paid the Former Sub-Advisor
and will pay the Sub-Advisor monthly compensation equal to 40% of the Investment
Manager's monthly compensation payable under the Management Agreement. For the
fiscal years ended October 31, 1995, 1996 and 1997, the Investment Manager
informed the Fund that it accrued to the Former Sub-Advisor total compensation
under the Sub-Advisory Agreement of $5,603,415, $6,496,993 and $5,578,738,
respectively.
 
   
    Under their terms, both Agreements had an initial term ending April 30,
1999, and provide that each will continue from year to year thereafter, provided
continuance of each 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 Directors of the Fund; provided that in either event such
continuance is approved annually by the vote of a majority of the Directors of
the Fund who are not parties to the Agreements or "interested persons" (as
defined in the Act) of any such party (the "Independent Directors"), which votes
must be cast in person at a meeting called for the purpose of voting on such
approval.
    
 
   
    The following persons owned more than 5% of the outstanding shares of Class
A of the Fund on October 20, 1998: Warren W. Youel & Linda S. Youel, JT TEN,
7810, N. Sendero De Juana, Tucson, AZ 85718-7518--28.266%; MSDW Trust FSB,
Trustee, Prebon Yamane, USA Inc. 401(k) Profit Sharing Plan, P.O. Box 957,
Jersey City, NJ 07303-0957--21.100%; MSDW Trust, Trustee, Cygnus Inc., P.O. Box
957, Jersey City, NJ 07303-0957--8.406%. The following persons owned more than
5% of the outstanding shares of Class C of the Fund on October 20, 1998: R, R &
M LLC, Rita R. Mahmood GP, 500 Ruby Drive, Mesquite, NV 89027-2921--5.960%; Mr.
Larry Dickerson, 1118 Zachary Way, Orlando, FL 32835-5756-- 5.384%. The
following persons owned more than 5% of the outstanding shares of Class D of the
Fund on October 20, 1998: Hare & CO, C/O The Bank of New York, P.O.Box 11203,
New York, NY 10286-1203-- 84.310%; Joseph & Patricia Reinkemeyer, Trustees for
the Reinkemeyer Family Trust dated 5/8/86, 1281 Skyline Blvd., Reno, NV
89509-3585--5.672%.
    
 
    The Fund has acknowledged that the name "Morgan Stanley Dean Witter" is a
property right of MSDW. The Fund has agreed that MSDW or any corporate affiliate
of MSDW may use, or at any time permit others to use, the name "Morgan Stanley
Dean Witter." The Fund has also agreed that in the event the investment
management contract between MSDW Advisors and the Fund is terminated, or if
 
                                       7
<PAGE>
the affiliation between MSDW Advisors and its parent company is terminated, the
Fund will eliminate the name "Morgan Stanley Dean Witter" from its name if MSDW,
or any corporate affiliate of MSDW or its parent company shall so request.
 
DIRECTORS AND OFFICERS
- --------------------------------------------------------------------------------
 
   
    The Directors and Executive Officers of the Fund, their principal business
occupations during the last five years and their affiliations, if any, with MSDW
Advisors, and with the 85 Morgan Stanley Dean Witter Funds and the 11 TCW/DW
Funds are shown below:
    
 
<TABLE>
<CAPTION>
NAME, AGE, POSITION WITH FUND
         AND ADDRESS               PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------  --------------------------------------------------
<S>                             <C>
Michael Bozic (57)              Chairman and Chief Executive Officer of Levitz
Director                        Furniture Corporation (since November, 1995);
c/o Levitz Furniture            Director or Trustee of the Morgan Stanley Dean
Corporation                     Witter Funds; formerly President and Chief
7887 N. Federal Highway         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. and
                                Weirton Steel Corporation.
 
Charles A. Fiumefreddo* (65)    Chairman, Director or Trustee, President and Chief
Chairman, President, Chief      Executive Officer of the Morgan Stanley Dean
 Executive Officer and          Witter Funds; Chairman, Chief Executive Officer
Director                        and Trustee of the TCW/DW Funds; formerly
Two World Trade Center          Chairman, Chief Executive Officer and Director of
New York, New York              MSDW Advisors, MSDW Distributors and MSDW
                                Services, Executive Vice President and Director of
                                Dean Witter Reynolds Inc. ("DWR"), Chairman and
                                Director of Morgan Stanley Dean Witter Trust FSB
                                ("MSDW Trust"), and Director and/or officer of
                                various MSDW subsidiaries (until June, 1998).
 
Edwin J. Garn (65)              Director or Trustee of the Morgan Stanley Dean
Director                        Witter Funds; formerly United States Senator
c/o Huntsman Corporation        (R-Utah) (1974-1992) and Chairman, Senate Banking
500 Huntsman Way                Committee (1980-1986); formerly Mayor of Salt Lake
Salt Lake City, Utah 84111      City, Utah (1971-1974); formerly Astronaut, Space
                                Shuttle Discovery (April 12-19, 1985); Vice
                                Chairman, Huntsman 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 Director or
Director                        Trustee of the Morgan Stanley Dean Witter Funds;
Two World Trade Center          Chairman of the Audit Committee and Trustee of the
New York, New York              TCW/DW Funds; formerly Chairman of the Independent
                                Directors or Trustees of the Morgan Stanley Dean
                                Witter Funds and the TCW/DW Funds (until June,
                                1998); formerly President, Council for Aid to
                                Education (1978-1989) and Chairman and Chief
                                Executive Officer of Anchor Corporation, an
                                Investment Advisor (1964-1978).
</TABLE>
 
                                       8
<PAGE>
   
<TABLE>
<CAPTION>
NAME, AGE, POSITION WITH FUND
         AND ADDRESS               PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------  --------------------------------------------------
<S>                             <C>
Wayne E. Hedien (64)            Retired; Director or Trustee of the Morgan Stanley
Director                        Dean Witter Funds; Director of The PMI Group, Inc.
c/o Gordon Altman Butowsky      (private mortgage insurance); Trustee and Vice
 Weitzen Shalov & Wein          Chairman of The Field Museum of Natural History;
Counsel to the Independent      formerly associated with the Allstate Companies
Directors                       (1966-1994), most recently as Chairman of The
114 West 47th Street            Allstate Corporation (March, 1993-December, 1994)
New York, New York              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.
 
Dr. Manuel H. Johnson (49)      Senior Partner, Johnson Smick International, Inc.,
Director                        a consulting firm; Co-Chairman and a founder of
c/o Johnson Smick               the Group of Seven Council (G7C), an international
International, Inc.             economic commission; Director or Trustee of the
1133 Connecticut Avenue, N.W.   Morgan Stanley Dean Witter Funds; Trustee of the
Washington, D.C.                TCW/DW Funds; Director of NASDAQ (since June,
                                1995); Director of Greenwich Capital Markets, Inc.
                                (broker-dealer) and NVR, Inc. (home construction);
                                Chairman and Trustee of the Financial Accounting
                                Foundation (oversight organization of 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 (1982-1986).
 
Michael E. Nugent (62)          General Partner, Triumph Capital, L.P., a private
Director                        investment partnership; Director or Trustee of the
Triumph Capital, L.P.           Morgan Stanley Dean Witter Funds; Trustee of the
237 Park Avenue                 TCW/DW Funds; formerly Vice President, Bankers
New York, New York              Trust Company and BT Capital Corporation
                                (1984-1988); Director of various business
                                organizations.
 
Philip J. Purcell* (55)         Chairman of the Board of Directors and Chief
Director                        Executive Officer of MSDW, DWR and Novus Credit
1585 Broadway                   Services Inc.; Director of MSDW Distributors;
New York, New York              Director or Trustee of the Morgan Stanley Dean
                                Witter Funds; Director and/or officer of various
                                MSDW subsidiaries.
 
John L. Schroeder (68)          Retired; Director or Trustee of the Morgan Stanley
Director                        Dean Witter Funds; Trustee of the TCW/DW Funds;
c/o Gordon Altman Butowsky      Director of Citizens Utilities Company; formerly
 Weitzen Shalov & Wein          Executive Vice President and Chief Investment
Counsel to the Independent      Officer of the Home Insurance Company (August,
Directors                       1991-September, 1995).
114 West 47th Street
New York, New York
</TABLE>
    
 
                                       9
<PAGE>
   
<TABLE>
<CAPTION>
NAME, AGE, POSITION WITH FUND
         AND ADDRESS               PRINCIPAL OCCUPATIONS DURING LAST FIVE YEARS
- ------------------------------  --------------------------------------------------
<S>                             <C>
Barry Fink (43)                 Senior Vice President (since March, 1997) and
Vice President, Secretary       Secretary and General Counsel (since February,
 and General Counsel            1997) and Director (since July, 1998) of MSDW
Two World Trade Center          Advisors and MSDW Services; Senior Vice President
New York, New York              (since March, 1997) and Assistant Secretary and
                                Assistant General Counsel (since February, 1997)
                                of MSDW Distributors; Assistant Secretary of DWR
                                (since August, 1996); Vice President, Secretary
                                and General Counsel of the Morgan Stanley 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 MSDW Advisors and MSDW Services
                                and Assistant Secretary of the Morgan Stanley Dean
                                Witter Funds and the TCW/DW Funds.
 
Thomas F. Caloia (52)           First Vice President and Assistant Treasurer of
Treasurer                       MSDW Advisors and MSDW Services; Treasurer of the
Two World Trade Center          Morgan Stanley Dean Witter Funds and the TCW/DW
New York, New York              Funds.
</TABLE>
    
 
- ------------------------
 *Denotes Directors who are "interested persons" of the Fund, as defined in the
  Act.
 
   
    In addition, Mitchell M. Merin, President, Chief Executive Officer and
Director of MSDW Advisors and MSDW Services, Chairman and Director of MSDW
Distributors and MSDW Trust, Executive Vice President and Director of DWR, and
various other MSDW subsidiaries, Robert M. Scanlan, President, Chief Operating
Officer and Director of MSDW Advisors and MSDW Services, Executive Vice
President of MSDW Distributors and MSDW Trust and Director of MSDW Trust, Ronald
E. Robison, Executive Vice President and Chief Administrative Officer of MSDW
Advisors and MSDW Services, Robert S. Giambrone, Senior Vice President of MSDW
Advisors, MSDW Services, MSDW Distributors and MSDW Trust and Director of MSDW
Trust, Joseph J. McAlinden, Executive Vice President and Chief Investment
Officer of MSDW Advisors and Director of MSDW Trust, and Mark Bavoso, Kenton J.
Hinchliffe, Ira N. Ross and Paul D. Vance, Senior Vice Presidents of MSDW
Advisors, are Vice Presidents of the Fund, and Marilyn K. Cranney and Carsten
Otto, First Vice Presidents and Assistant General Counsels of MSDW Advisors and
MSDW Services, Frank Bruttomesso, LouAnne D. McInnis and Ruth Rossi, Vice
Presidents and Assistant General Counsels of MSDW Advisors and MSDW Services,
and Todd Lebo, a staff attorney with MSDW Advisors, are Assistant Secretaries of
the Fund.
    
 
THE BOARD OF DIRECTORS, THE INDEPENDENT DIRECTORS, AND THE COMMITTEES
 
   
    The Board of Directors consists of nine (9) trustees. These same individuals
also serve as directors or trustees for all of the Morgan Stanley Dean Witter
Funds, and are referred to in this section as Directors. As of the date of this
Statement of Additional Information, there are a total of 85 Morgan Stanley Dean
Witter Funds, comprised of 121 portfolios. As of September 30, 1998, the Morgan
Stanley Dean Witter Funds had total net assets of approximately $105 billion and
more than six million shareholders.
    
 
    Seven Directors (77% of the total number) have no affiliation or business
connection with MSDW Advisors or any of its affiliated persons and do not own
any stock or other securities issued by MSDW Advisors' parent company, MSDW.
These are the "disinterested" or "independent" Directors. Four of the seven
independent Directors are also Independent Trustees of the TCW/DW Funds.
 
    Law and regulation establish both general guidelines and specific duties for
the Independent Directors. The Morgan Stanley Dean Witter Funds seek as
Independent Directors individuals of distinction and experience in business and
finance, government service or academia; these are people whose
 
                                       10
<PAGE>
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 Directors 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 Directors serve as members of the Audit Committee.
Three of them also serve as members of the Derivatives Committee. In addition,
three of the Directors, including two Independent Directors, serve as members of
The Insurance Committee. During the calendar year ended December 31, 1997, the
Audit Committee, the Derivatives Committee and the Independent Directors held a
combined total of seventeen meetings.
    
 
    The Independent Directors are 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 Directors 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 Morgan Stanley 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; and reviewing the adequacy of the Fund's system of internal
controls.
 
   
    The Board of each Fund has formed a Derivatives Committee to approve
parameters for and monitor the activities of the Fund with respect to derivative
investments, if any, made by the Fund.
    
 
   
    Finally, the Board of each Fund has formed an Insurance Committee to review
and monitor the insurance coverage maintained by the Fund.
    
 
ADVANTAGES OF HAVING SAME INDIVIDUALS AS INDEPENDENT DIRECTORS FOR ALL MORGAN
STANLEY DEAN WITTER FUNDS
 
    The Independent Directors and the Funds' management believe that having the
same Independent Directors for each of the Morgan Stanley Dean Witter Funds
avoids the duplication of effort that would arise from having different groups
of individuals serving as Independent Directors for each of the Funds or even of
sub-groups of Funds. They believe that having the same individuals serve as
Independent Directors 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 Directors 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 Directors serve on all Fund Boards
enhances the ability of each Fund to obtain, at modest cost to each separate
Fund, the services of Independent Directors of the caliber, experience and
business acumen of the individuals who serve as Independent Directors of the
Morgan Stanley Dean Witter Funds.
 
COMPENSATION OF INDEPENDENT DIRECTORS
 
    The Fund pays each Independent Director an annual fee of $800 plus a per
meeting fee of $50 for meetings of the Board of Directors, the Independent
Directors or Committees of the Board of Directors attended by the Director (the
Fund pays the Chairman of the Audit Committee an additional annual fee of $750).
If a Board meeting and a meeting of the Independent Directors or a Committee
meeting, or a meeting of the Independent Directors and/or more than one
Committee meeting, take place on a single
 
                                       11
<PAGE>
day, the Directors are paid a single meeting fee by the Fund. The Fund also
reimburses such Directors for travel and other out-of-pocket expenses incurred
by them in connection with attending such meetings. Directors 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 for their services as Director. Mr. Haire currently serves as Chairman of
the Audit Committee. Prior to June 1, 1998, Mr. Haire also served as Chairman of
the Independent Directors, for which services the Fund paid him an additional
annual fee of $1,200.
 
    The following table illustrates the compensation paid to the Fund's
Independent Directors by the Fund for the fiscal year ended October 31, 1997.
 
                               FUND COMPENSATION
 
<TABLE>
<CAPTION>
                                                                   AGGREGATE
                                                                 COMPENSATION
NAME OF INDEPENDENT DIRECTOR                                     FROM THE FUND
- --------------------------------------------------------------  ---------------
<S>                                                             <C>
Michael Bozic.................................................      $1,700
Edwin J. Garn.................................................       1,900
John R. Haire.................................................       3,850
Wayne E. Hedien...............................................         482
Dr. Manuel H. Johnson.........................................       1,850
Michael E. Nugent.............................................       1,900
John L. Schroeder.............................................       1,900
</TABLE>
 
    The following table illustrates the compensation paid to the Fund's
Independent Directors for the calendar year ended December 31, 1997 for services
to the 84 Morgan Stanley 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. Mr. Haire serves as Chairman of the Audit Committee of each
Morgan Stanley Dean Witter Fund and each TCW/DW Fund and, prior to June 1, 1998,
also served as Chairman of the Independent Directors or Trustees of those Funds.
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 Morgan Stanley Dean Witter Money Market Funds. Mr. Hedien's term as
Director or Trustee of each Morgan Stanley Dean Witter Fund commenced on
September 1, 1997.
 
    CASH COMPENSATION FROM MORGAN STANLEY DEAN WITTER FUNDS AND TCW/DW FUNDS
 
<TABLE>
<CAPTION>
                                                                   FOR SERVICE AS                    TOTAL CASH
                                                                    CHAIRMAN OF      FOR SERVICE    COMPENSATION
                                                                    INDEPENDENT          AS              FOR
                               FOR SERVICE                         DIRECTORS/TRUSTEES  CHAIRMAN OF   SERVICES TO
                             AS DIRECTOR AND                         AND AUDIT       INDEPENDENT         84
                                COMMITTEE        FOR SERVICE AS    COMMITTEES OF      TRUSTEES         MORGAN
                               MEMBER OF 84       TRUSTEE AND            84           AND AUDIT        STANLEY
                              MORGAN STANLEY       COMMITTEE       MORGAN STANLEY   COMMITTEES OF    DEAN WITTER
NAME OF                        DEAN WITTER        MEMBER OF 14      DEAN WITTER          14         FUNDS AND 14
INDEPENDENT DIRECTOR              FUNDS           TCW/DW FUNDS         FUNDS        TCW/DW FUNDS    TCW/DW 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 Morgan
Stanley Dean Witter Funds, including the Fund, have adopted a retirement program
under which an Independent Director who retires after serving for at least five
years (or such lesser period as may be determined by the Board) as an
Independent Director of any Morgan Stanley Dean Witter Fund that has adopted the
retirement program (each such Fund referred to as an "Adopting Fund" and each
such Director referred to as an "Eligible Director") 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 Director is entitled to receive from the Adopting
Fund, commencing as of his or
 
                                       12
<PAGE>
her retirement date and continuing for the remainder of his or her life, an
annual retirement benefit (the "Regular Benefit") equal to 29.41% of his or her
Eligible Compensation plus 0.4901667% of such Eligible Compensation for each
full month of service as an Independent Director of any Adopting Fund in excess
of five years up to a maximum of 58.82% 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 Director for service
to the Adopting Fund in the five year period prior to the date of the Eligible
Director'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 Directors by the Fund for the fiscal year ended October 31,
1997 and by the 57 Morgan Stanley Dean Witter Funds (including the Fund) for the
year ended December 31, 1997, and the estimated retirement benefits for the
Fund's Independent Directors, to commence upon their retirement, from the Fund
as of October 31, 1997 and from the 57 Morgan Stanley Dean Witter Funds as of
December 31, 1997.
 
   RETIREMENT BENEFITS FROM THE FUND AND ALL MORGAN STANLEY DEAN WITTER FUNDS
 
<TABLE>
<CAPTION>
                                  FOR ALL ADOPTING FUNDS
                                ---------------------------
                                 ESTIMATED                       RETIREMENT BENEFITS        ESTIMATED ANNUAL
                                  CREDITED                       ACCRUED AS EXPENSES            BENEFITS
                                   YEARS        ESTIMATED                                  UPON RETIREMENT(2)
                                 OF SERVICE     PERCENTAGE      ---------------------      -------------------
                                     AT             OF                        BY ALL        FROM      FROM ALL
                                 RETIREMENT      ELIGIBLE       BY THE       ADOPTING       THE       ADOPTING
NAME OF INDEPENDENT DIRECTOR    (MAXIMUM 10)   COMPENSATION      FUND         FUNDS         FUND       FUNDS
- ------------------------------  ------------   ------------     ------       --------      ------     --------
<S>                             <C>            <C>              <C>          <C>           <C>        <C>
Michael Bozic.................       10           58.82%         $372        $ 20,499      $  925     $ 55,026
Edwin J. Garn.................       10           58.82           620          30,878         925       55,026
John R. Haire.................       10           58.82           228         (19,823)(3)   2,246      132,002
Wayne E. Hedien...............        9           50.00             0               0         794       46,772
Dr. Manuel H. Johnson.........       10           58.82           250          12,832         925       55,026
Michael E. Nugent.............       10           58.82           468          22,546         925       55,026
John L. Schroeder.............        8           49.02           714          39,350         771       46,123
</TABLE>
 
- ------------------------
(1) An Eligible Director may elect alternate payments of his or her retirement
    benefits based upon the combined life expectancy of such Eligible Director
    and his or her spouse on the date of such Eligible Director's retirement.
    The amount estimated to be payable under this method, through the remainder
    of the later of the lives of such Eligible Director and spouse, will be the
    actuarial equivalent of the Regular Benefit. In addition, the Eligible
    Director 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.
 
(2) Based on current levels of compensation. Amount of annual benefits also
    varies depending on the Director's elections described in Footnote (1)
    above.
 
(3) This number reflects the effect of the extension of Mr. Haire's term as
    Director until May 1, 1999.
 
   
    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 Directors as a group was less than 1 percent of the Fund's shares of
beneficial interest outstanding.
    
 
INVESTMENT PRACTICES AND POLICIES
- --------------------------------------------------------------------------------
 
    PRIVATE PLACEMENTS.  The Fund may invest up to 10% 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
 
                                       13
<PAGE>
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 Directors 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 of "illiquid securities," which is limited
by the Fund's investment restrictions to 10% of the Fund's total assets.
 
    CONVERTIBLE SECURITIES.  The Fund may invest in fixed-income securities
which are convertible into common stock. Convertible securities rank senior to
common stocks in a corporation's capital structure and, therefore, entail less
risk than the corporation's common stock. The value of a convertible security is
a function of its "investment value" (its value as if it did not have a
conversion privilege), and its "conversion value" (the security's worth if it
were to be exchanged for the underlying security, at market value, pursuant to
its conversion privilege).
 
    To the extent that a convertible security's investment value is greater than
its conversion value, its price will be primarily a reflection of such
investment value and its price will be likely to increase when interest rates
fall and decrease when interest rates rise, as with a fixed-income security (the
credit standing of the issuer and other factors may also have an effect on the
convertible security's value). If the conversion value exceeds the investment
value, the price of the convertible security will rise above its investment
value and, in addition, will sell at some premium over its conversion value.
(This premium represents the price investors are willing to pay for the
privilege of purchasing a fixed-income security with a possibility of capital
appreciation due to the conversion privilege.) At such times the price of the
convertible security will tend to fluctuate directly with the price of the
underlying equity security. Convertible securities may be purchased by the Fund
at varying price levels above their investment values and/or their conversion
values in keeping with the Fund's objective.
 
    WARRANTS.  The Fund may acquire warrants, including warrants which are
attached to fixed-income securities purchased for its portfolio, and hold such
warrants until the Investment Manager and/or the Sub-Advisor determines it is
prudent to sell. Warrants are, in effect, an option to purchase equity
securities at a specific price, generally valid for a specific period of time,
and have no voting rights, pay no dividends and have no rights with respect to
the corporations issuing them.
 
    U.S. GOVERNMENT SECURITIES.  Securities issued by the U.S. Government, its
agencies or instrumentalities in which the Fund may invest 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.
 
    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.
 
                                       14
<PAGE>
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.
 
    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 Fund intends
to invest in such zero coupon treasury securities as STRIPS, Treasury Receipts,
Physical Coupons, and Proprietary Receipts. However, the Fund does not intend,
during its current fiscal year, to invest in such securities in amounts
totalling more than 5% of its total assets.
 
    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. As a
result, the Fund may be forced to liquidate portfolio securities at a time which
may be disadvantageous to the Fund, in order to have sufficient cash to make
requisite distributions.
 
    Currently the only U.S. Treasury security issued without coupons is the
Treasury bill. However 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).
 
    As stated in the Prospectus, the money market instruments which the Fund may
purchase include U.S. Government securities, bank obligations, Eurodollar
certificates of deposit, obligations of savings institutions, fully insured
certificates of deposit and commercial paper. Such securities are limited to:
 
    U.S. GOVERNMENT SECURITIES.  Obligations issued or guaranteed as to
principal and interest by the United States or its agencies (such as the
Export-Import Bank of the United States, Federal Housing Administration and
Government National Mortgage Association) or its instrumentalities (such as the
Federal Home Loan Bank), including Treasury bills, notes and bonds;
 
    BANK OBLIGATIONS.  Obligations (including certificates of deposit and
bankers' acceptances) of banks subject to regulation by the U.S. Government and
having total assets of $1,000,000,000 or more, and instruments secured by such
obligations, not including obligations of foreign branches of domestic banks
except to the extent below;
 
    EURODOLLAR CERTIFICATES OF DEPOSIT.  Eurodollar certificates of deposit
issued by foreign branches of domestic banks having total assets of
$1,000,000,000 or more;
 
    OBLIGATIONS OF SAVINGS INSTITUTIONS.  Certificates of deposit of savings
banks and savings and loan associations, having total assets of $1,000,000,000
or more;
 
                                       15
<PAGE>
    FULLY INSURED CERTIFICATES OF DEPOSIT.  Certificates of deposit of banks and
savings institutions, having total assets of less than $1,000,000,000, if the
principal amount of the obligation is insured by the Federal Deposit Insurance
Corporation, limited to $100,000 principal amount per certificate and to 10% or
less of the Fund's total assets in all such obligations and in all illiquid
assets, in the aggregate;
 
    COMMERCIAL PAPER.  Commercial paper rated within the two highest grades by
Standard & Poor's Corporation ("S&P") or Moody's Investors Service, Inc.
("Moody's") or, if not rated, issued by a company having an outstanding debt
issue rated at least AA by S&P or Aa by Moody's.
 
FORWARD FOREIGN CURRENCY EXCHANGE CONTRACTS
 
    As discussed in the Prospectus, the Fund may enter into forward foreign
currency exchange contracts ("forward contracts") as a hedge against
fluctuations in future foreign exchange rates. The Fund will conduct its foreign
currency exchange transactions either on a spot (i.e., cash) basis at the spot
rate prevailing in the foreign currency exchange market, or through entering
into forward contracts to purchase or sell foreign currencies. A forward
contract involves an obligation to purchase or sell a specific currency at a
future date, which may be any fixed number of days from the date of the contract
agreed upon by the parties, at a price set at the time of the contract. These
contracts are traded in the interbank market conducted directly between currency
traders (usually large commercial and investment banks) and their customers.
Such forward contracts will only be entered into with United States banks and
their foreign branches or foreign banks whose assets total $1 billion or more. A
forward contract generally has no deposit requirement, and no commissions are
charged at any stage for trades.
 
   
    When management of the Fund believes that the currency of a particular
foreign country may suffer a substantial movement against the U.S. dollar, it
may enter into a forward contract to purchase or sell, for a fixed amount of
dollars or other currency, the amount of foreign currency approximating the
value of some or all of the Fund's portfolio securities denominated in such
foreign currency. The Fund will also not enter into such forward contracts or
maintain a net exposure to such contracts where the consummation of the
contracts would obligate the Fund to deliver an amount of foreign currency in
excess of the value of the Fund's portfolio securities or other assets
denominated in that currency. Under normal circumstances, consideration of the
prospect for currency parities will be incorporated into the longer term
investment decisions made with regard to overall diversification strategies.
However, the management of the Fund believes that it is important to have the
flexibility to enter into such forward contracts when it determines that the
best interests of the Fund will be served. The Fund will place cash, U.S.
Government securities or other appropriate liquid portfolio securities in a
segregated account in an amount equal to the value of the Fund's total assets
committed to the consummation of forward contracts entered into under the
circumstances set forth above. If the value of the securities placed in the
segregated account declines, additional cash or securities will be placed in the
account on a daily basis so that the value of the account will equal the amount
of the Fund's commitments with respect to such contracts.
    
 
    Where, for example, the Fund is hedging a portfolio position consisting of
foreign fixed-income securities denominated in a foreign currency against
adverse exchange rate moves vis-a-vis the U.S. dollar, at the maturity of the
forward contract for delivery by the Fund of a foreign currency, the Fund may
either sell the portfolio security and make delivery of the foreign currency, or
it may retain the security and terminate its contractual obligation to deliver
the foreign currency by purchasing an "offsetting" contract with the same
currency trader obligating it to purchase, on the same maturity date, the same
amount of the foreign currency (however, the ability of the Fund to terminate a
contract is contingent upon the willingness of the currency trader with whom the
contract has been entered into to permit an offsetting transaction). It is
impossible to forecast the market value of portfolio securities at the
expiration of the contract. Accordingly, it may be necessary for the Fund to
purchase additional foreign currency on the spot market (and bear the expense of
such purchase) if the market value of the security is less than the amount of
foreign currency the Fund is obligated to deliver and if a decision is made to
sell the
 
                                       16
<PAGE>
security and make delivery of the foreign currency. Conversely, it may be
necessary to sell on the spot market some of the foreign currency received upon
the sale of the portfolio securities if its market value exceeds the amount of
foreign currency the Fund is obligated to deliver.
 
    If the Fund retains the portfolio securities and engages in an offsetting
transaction, the Fund will incur a gain or loss to the extent that there has
been movement in spot or forward contract prices. If the Fund engages in an
offsetting transaction, it may subsequently enter into a new forward contract to
sell the foreign currency. Should forward prices decline during the period
between the Fund's entering into a forward contract for the sale of a foreign
currency and the date it enters into an offsetting contract for the purchase of
the foreign currency, the Fund will realize a gain to the extent the price of
the currency it has agreed to sell exceeds the price of the currency it has
agreed to purchase. Should forward prices increase, the Fund will suffer a loss
to the extent the price of the currency it has agreed to purchase exceeds the
price of the currency it has agreed to sell.
 
    If the Fund purchases a fixed-income security which is denominated in U.S.
dollars but which will pay out its principal based upon a formula tied to the
exchange rate between the U.S. dollar and a foreign currency, it may hedge
against a decline in the principal value of the security by entering into a
forward contract to sell an amount of the relevant foreign currency equal to
some or all of the principal value of the security.
 
   
    At times when the Fund has written a call option on a fixed-income security
or the currency in which it is denominated, it may wish to enter into a forward
contract to purchase or sell the foreign currency in which the security is
denominated. A forward contract would, for example, hedge the risk of the
security on which a call option has been written declining in value to a greater
extent than the value of the premium received for the option. The Fund will
maintain at all times, cash, U.S. Government securities, or other appropriate
liquid portfolio securities in a segregated account equal in value to all
forward contract obligations and option contract obligations entered into in
hedge situations such as this.
    
 
    Although the Fund values its assets daily in terms of U.S. dollars, it does
not intend to convert its holdings of foreign currencies into U.S. dollars on a
daily basis. It will, however, do so from time to time, and investors should be
aware of the costs of currency conversion. Although foreign exchange dealers do
not charge a fee for conversion, they do realize a profit based on the spread
between the prices at which they are buying and selling various currencies.
Thus, a dealer may offer to sell a foreign currency to the Fund at one rate,
while offering a lesser rate of exchange should the Fund desire to resell that
currency to the dealer.
 
OPTIONS AND FUTURES TRANSACTIONS
 
    As discussed in the Prospectus, the Fund may write covered call options
against securities held in its portfolio and purchase options of the same series
to effect closing transactions, and may hedge against potential changes in the
market value of its investments (or anticipated investments) by purchasing put
and call options on portfolio (or eligible portfolio) securities (and the
currencies in which they are denominated) 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 on various
foreign currencies are listed on several U.S. and foreign securities exchanges
and are written in over-the-counter transactions ("OTC options"). Listed options
are issued or guaranteed by the exchange on which they trade or by a clearing
corporation such as the Options Clearing Corporation ("OCC"). Ownership of a
listed call option gives the Fund the right to buy from the OCC (in the U.S.) or
other clearing corporation or exchange, the underlying security or currency
covered by the option at the stated exercise price (the price per unit of the
underlying security or currency) 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 (in the U.S.) or other clearing corporation
or exchange, the underlying security or currency 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 or currency to the OCC (in
 
                                       17
<PAGE>
the U.S.) or other clearing corporation or exchange at the stated exercise
price. Upon notice of exercise of the put option, the writer of the option would
have the obligation to purchase the underlying security or currency from the OCC
(in the U.S.) or other clearing corporation or exchange at the exercise price.
 
    OPTIONS ON FOREIGN CURRENCIES.  The Fund may purchase and write options on
foreign currencies for purposes similar to those involved with investing in
forward foreign currency exchange contracts. For example, in order to protect
against declines in the dollar value of portfolio securities which are
denominated in a foreign currency, the Fund may purchase put options on an
amount of such foreign currency equivalent to the current value of the portfolio
securities involved. As a result, the Fund would be enabled to sell the foreign
currency for a fixed amount of U.S. dollars, thereby "locking in" the dollar
value of the portfolio securities (less the amount of the premiums paid for the
options). Conversely, the Fund may purchase call options on foreign currencies
in which securities it anticipates purchasing are denominated to secure a set
U.S. dollar price for such securities and protect against a decline in the value
of the U.S. dollar against such foreign currency. The Fund may also purchase
call and put options to close out written option positions.
 
    The Fund may also write call options on foreign currency to protect against
potential declines in its portfolio securities which are denominated in foreign
currencies. If the U.S. dollar value of the portfolio securities falls as a
result of a decline in the exchange rate between the foreign currency in which
it is denominated and the U.S. dollar, then a loss to the Fund occasioned by
such value decline would be ameliorated by receipt of the premium on the option
sold. At the same time, however, the Fund gives up the benefit of any rise in
value of the relevant portfolio securities above the exercise price of the
option and, in fact, only receives a benefit from the writing of the option to
the extent that the value of the portfolio securities falls below the price of
the premium received. The Fund may also write options to close out long call
option positions.
 
    The markets in foreign currency options are relatively new and the Fund's
ability to establish and close out positions on such options is subject to the
maintenance of a liquid secondary market. While in the opinion of the management
of the Fund, the market for such options has developed sufficiently to ensure
that the risks in connection with such options are not greater than the risks in
connection with the underlying currency, there can be no assurance that a liquid
secondary market will exist for a particular option at any specific time. In
addition, options on foreign currencies are affected by all of those factors
which influence foreign exchange rates and investments generally.
 
    The value of a foreign currency option depends upon the value of the
underlying currency relative to the U.S. dollar. As a result, the price of the
option position may vary with changes in the value of either or both currencies
and have no relationship to the investment merits of a foreign security,
including foreign securities held in a "hedged" investment portfolio. Because
foreign currency transactions occurring in the interbank market involve
substantially larger amounts than those that may be involved in the use of
foreign currency options, investors may be disadvantaged by having to deal in an
odd lot market (generally consisting of transactions of less than $1 million)
for the underlying foreign currencies at prices that are less favorable than for
round lots.
 
    There is no systematic reporting of last sale information for foreign
currencies or any regulatory requirement that quotations available through
dealers or other market sources be firm or revised on a timely basis. Quotation
information available is generally representative of very large transactions in
the interbank market and thus may not reflect relatively smaller transactions
(i.e., less than $1 million) where rates may be less favorable. The interbank
market in foreign currencies is a global, around-the-clock market. To the extent
that the U.S. options markets are closed while the markets for the underlying
currencies remain open, significant price and rate movements may take place in
the underlying markets that are not reflected in the options market.
 
    OTC OPTIONS.  Exchange-listed options are issued by the OCC (in the U.S.) or
other clearing corporation or exchange 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
 
                                       18
<PAGE>
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 or amount of foreign
currency underlying an option it has written, in accordance with the terms of
the 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 member banks of the Federal Reserve System or primary
dealers in U.S. Government securities or with affiliates of such banks or
dealers which have capital of at least $50 million or whose obligations are
guaranteed by an entity having capital of at least $50 million.
 
   
    COVERED CALL WRITING.  As stated in the Prospectus, the Fund is permitted to
write covered call options on portfolio securities and on the U.S. Dollar and
foreign currencies, without limit, in order to aid in achieving its investment
objectives. 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 (currency) 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 security (currency) 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 (currency) 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 portfolio securities which the Fund holds in a
segregated account.
    
 
    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 earn a higher level of current income than it
would earn from holding the underlying securities (currencies) alone. Moreover,
the premium received will offset a portion of the potential loss incurred by the
Fund if the securities (currencies) underlying the option are ultimately sold
(exchanged) by the Fund at a loss. Furthermore, a premium received on a call
written or a foreign currency will ameliorate any potential loss of value on the
portfolio security due to a decline in the value of the currency. The premium
received will fluctuate with varying economic market conditions. If the market
value of the portfolio securities (or the currencies in which they are
denominated) upon which call options have been written increases, the Fund may
receive a lower 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
(currency) against payment of the exercise price on any calls 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 (currency) from
being called, to permit the sale of an underlying security (or the exchange of
the underlying currency) or to enable the Fund to write another call option on
the underlying security (currency) with either a different exercise price or
expiration date or both. 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 (currency). 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 (currency).
 
                                       19
<PAGE>
    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
(currency) during the option period. If a call option is exercised, the Fund
realizes a gain or loss from the sale of the underlying security (currency)
equal to the difference between the purchase price of the underlying security
(currency) and the proceeds of the sale of the security (currency) plus the
premium received on the option less the commission paid.
 
    Options written by the Fund will normally have expiration dates of up to
eighteen months 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.
 
    PURCHASING CALL AND PUT OPTIONS.  As stated in the Prospectus, the Fund may
purchase listed and OTC call and put options in amounts equalling up to 5% of
its total assets. The Fund may purchase a call option in order to close out a
covered call position (see "Covered Call Writing" above), to protect against an
increase in price of a security it anticipates purchasing or, in the case of a
call option on foreign currency, to hedge against an adverse exchange rate move
of the currency in which the security it anticipates purchasing is denominated
vis-a-vis the currency in which the exercise price is denominated. 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 (currencies) 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 and currencies (or related
currencies) which it holds in its portfolio only to protect itself against a
decline in the value of the security. If the value of the underlying security
(currency) 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. In addition, the Fund may sell a put option which it has
previously purchased prior to the sale of the securities (currencies) 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. And such gain or loss
could be offset in whole or in part by a change in the market value of the
underlying security (currency). If a put option purchased by the Fund expired
without being sold or exercised, the premium would be lost.
 
    RISKS OF OPTIONS TRANSACTIONS.  The successful use of options depends on the
ability of the Investment Manager to forecast correctly interest rates and
market movements. If the market value of the portfolio securities upon which
call options have been written increases, the Fund may receive a lower total
return from the portion of its portfolio upon which calls have been written than
it would have had such calls not been written. In writing puts, the Fund assumes
the risk of loss should the market value of the underlying securities decline
below the exercise price of the option (any loss being decreased by the receipt
of the premium on the option written). 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 (or the value of its denominated currency)
increase, but has retained the risk of loss should the price of the underlying
security (or the value of its denominated currency) decline. 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 OTC 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.
 
                                       20
<PAGE>
    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).
 
    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.
 
    In the event of the bankruptcy of a broker through which the Fund engages in
transactions in options, 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 Fund's management.
 
    Each of the exchanges has established limitations governing the maximum
number of 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.
 
    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.
 
    The extent to which the Fund may enter into transactions involving options
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).
 
    FUTURES CONTRACTS.  As stated in the Prospectus, the Fund may purchase and
sell interest rate, currency, and index futures contracts ("futures contracts"),
that are traded on U.S. and foreign commodity exchanges, on such underlying
securities as U.S. Treasury bonds, notes and bills and/or any foreign government
fixed-income security ("interest rate" futures), on various currencies
("currency futures") and on such indexes of U.S. and foreign securities as may
exist or come into being ("index" futures).
 
    The Fund will purchase or sell interest rate futures contracts for the
purpose of hedging some or all of the value of its portfolio securities (or
anticipated portfolio securities) against changes in prevailing interest rates.
If it is anticipated that interest rates may rise and, concomitantly, the price
of certain of its
 
                                       21
<PAGE>
portfolio securities fall, the Fund may sell an interest rate 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
securities the Fund intends to purchase. Subsequently, appropriate 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 index futures contracts for the purpose of
hedging some or all of its portfolio (or anticipated portfolio) securities
against changes in their prices. If it is anticipated that the prices of
securities held by the Fund may fall, the Fund may sell an index futures
contract. Conversely, if the Fund wishes to hedge against anticipated price
rises in those securities which the Fund intends to purchase, the Fund may
purchase an index futures contract.
 
    The Fund will purchase or sell currency futures on currencies in which its
portfolio securities (or anticipated portfolio securities) are denominated for
the purposes of hedging against anticipated changes in currency exchange rates.
The Fund will enter into currency futures contracts for the same reasons as set
forth above for entering into forward foreign currency contracts; namely, to
"lock-in" the value of a security purchased or sold in a given currency
vis-a-vis a different currency or to hedge against an adverse currency exchange
rate movement of a portfolio security's (or anticipated portfolio security's)
denominated currency vis-a-vis a different currency.
 
    In addition to the above, interest rate, index and currency futures will be
bought or sold in order to close out a short or long position maintained by the
Fund 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. A futures contract
sale is closed out by effecting a futures contract purchase for the same
aggregate amount of the specific type of security (currency) 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 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 security (currency) 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, 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 of cash or U.S. Government
securities called "variation margin," with the Fund's futures contract clearing
broker, which are reflective of price fluctuations in the futures contract.
Currently, interest rate 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.
 
    CURRENCY FUTURES.  Generally, foreign currency futures provide for the
delivery of a specified amount of a given currency, on the exercise date, for a
set exercise price denominated in U.S. dollars or other currency. Foreign
currency futures contracts would be entered into for the same reason and under
the same circumstances as forward foreign currency exchange contracts. The
Investment Manager will
 
                                       22
<PAGE>
assess such factors as cost spreads, liquidity and transaction costs in
determining whether to utilize futures contracts or forward contracts its in
foreign currency transactions and hedging strategy. Currently, currency futures
exist for, among other foreign currencies, the Japanese yen, German mark,
Canadian dollar, British pound, Swiss franc and European currency unit.
 
    Purchasers and sellers of foreign currency futures contracts are subject to
the same risks that apply to the buying and selling of futures generally. In
addition, there are risks associated with foreign currency futures contracts and
their use as a hedging device similar to those associated with options on
foreign currencies described above. Further, settlement of a foreign currency
futures contract must occur within the country issuing the underlying currency.
Thus, the Fund must accept or make delivery of the underlying foreign currency
in accordance with any U.S. or foreign restrictions or regulations regarding the
maintenance of foreign banking arrangements by U.S. residents and may be
required to pay any fees, taxes or charges associated with such delivery which
are assessed in the issuing country.
 
    Options on foreign currency futures contracts may involve certain additional
risks. Trading options on foreign currency futures contracts is relatively new.
The ability to establish and close out positions on such options is subject to
the maintenance of a liquid secondary market. To reduce this risk, the Fund will
not purchase or write options on foreign currency futures contracts unless and
until, in the Investment Manager's opinion, the market for such options has
developed sufficiently that the risks in connection with such options are not
greater than the risks in connection with transactions in the underlying foreign
currency futures contracts.
 
    INDEX FUTURES CONTRACTS.  As discussed in the Prospectus, 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 requirements range from 3% to 10% 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 gain.
 
    OPTIONS ON FUTURES CONTRACTS.  The Fund may purchase and write call and put
options on futures contracts which are traded on an exchange 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) 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 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 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.
 
                                       23
<PAGE>
    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 Fund's
management 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, the Fund might write a call option on an interest rate futures
contract, the underlying security of which correlates with the portion of the
portfolio the Fund seeks to hedge. Any premiums received in the writing of
options on futures contracts may, of course, provide a further hedge against
losses resulting from price declines in portions of the Fund portfolio.
 
    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
successful use of futures and related options depends on the ability of the
Investment Manager to accurately predict market and interest rate movements. As
stated in the Prospectus, the Fund may sell a futures contract to protect
against the decline in the value of securities (or the currency in which they
are denominated) held by the Fund. However, it is possible that the futures
market may advance and the value of securities (or the currency in which they
are denominated) 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 (or the currency in which they are
denominated), and the value of such securities (currencies) 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.
 
   
    If the Fund has sold a call option on a futures contract, it will cover this
position by holding, in a segregated account, 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
(currencies) underlying the futures contract or the exercise price of the
option. Such a position may also be covered by owning the securities
(currencies) underlying the futures contract, 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.
    
 
   
    In addition, if the Fund holds a long position in a futures contract it will
hold cash, U.S. Government securities or other liquid portfolio securities equal
to the purchase price of the contract (less the amount of initial or variation
margin on deposit) in a segregated account. 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.
    
 
                                       24
<PAGE>
    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.
 
    Futures contracts and options thereon which are purchased or sold on foreign
commodities exchanges may have greater price volatility than their U.S.
counterparts. Furthermore, foreign commodities exchanges may be less regulated
and under less governmental scrutiny than U.S. exchanges. Brokerage commissions,
clearing costs and other transaction costs may be higher on foreign exchanges.
Greater margin requirements may limit the Fund's ability to enter into certain
commodity transactions on foreign exchanges. Moreover, differences in clearance
and delivery requirements on foreign exchanges may occasion delays in the
settlement of the Fund's transactions effected on foreign exchanges.
 
    In the event of the bankruptcy of a broker through which the Fund engages in
transactions in 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.
 
    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 (and the currencies in which they
are denominated) 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 (and the
currencies in which they are denominated). 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.
 
    As stated in the Prospectus, 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 (currencies) 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
or currency markets 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 may still not result in a successful hedging
transaction.
 
                                       25
<PAGE>
    As stated in the Prospectus, 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 (currencies) at a time when it may
be disadvantageous to do so.
 
    The extent to which the Fund may enter into transactions involving futures
contracts and options thereon 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).
 
    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 (currencies).
 
OTHER INVESTMENT POLICIES
 
    REPURCHASE AGREEMENTS.  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. A
repurchase agreement may be viewed as a type of secured lending by the Fund
which typically involves the acquisition by the Fund of government 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 full value of the collateral, as
specified in the agreement, is always at least equal to the purchase price plus
accrued interest. If required, additional collateral will be requested from the
counterparty and when received, added to the account to maintain full
collateralization. In the event the original seller defaults on its obligations
to repurchase, as a result of its bankruptcy or otherwise, the Fund will seek to
sell the collateral, which action could involve costs or delays. In such case,
the Fund's ability to dispose of the collateral to recover its investment may be
restricted or delayed.
 
    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 and may exceed one year.
 
    While repurchase agreements involve certain risks not associated with direct
investments in debt securities, the Fund follows procedures designed to minimize
such risks. Repurchase agreements will be transacted only with large,
well-capitalized and well-established financial institutions whose financial
condition will be continuously monitored by the management of the Fund subject
to procedures established by the Directors. The procedures also require that the
collateral underlying the agreement be specified. The Fund does not presently
intend to enter into repurchase agreements so that more than 5% of the Fund's
net assets are subject to such agreements.
 
    REVERSE REPURCHASE AGREEMENTS.  The Fund may also use reverse repurchase
agreements for purposes of meeting redemptions or as part of its investment
strategy. Reverse repurchase agreements involve sales by the Fund of portfolio
assets concurrently with an agreement by the Fund to repurchase the same assets
at a later date at a fixed price. Generally, the effect of such a transaction is
that the Fund
 
                                       26
<PAGE>
   
can recover all or most of the cash invested in the portfolio securities
involved during the term of the reverse repurchase agreement, while it will be
able to keep the interest income associated with those portfolio securities.
Such transactions are only advantageous if the interest cost to the Fund of the
reverse repurchase transaction is less than the cost of obtaining the cash
otherwise. Opportunities to achieve this advantage may not always be available,
and the Fund intends to use the reverse repurchase technique only when it will
be to its advantage to do so. The Fund will establish a segregated account in
which it will maintain cash, U.S. Government securities or other appropriate
liquid portfolio securities equal in value to its obligations in respect of
reverse repurchase agreements. Reverse repurchase agreements are considered
borrowings by the Fund and, in accordance with legal requirements, the Fund will
maintain an asset coverage (including the proceeds) of at least 300% with
respect to all reverse repurchase agreements. Reverse repurchase agreements may
not exceed 10% of the Fund's total assets. The Fund will make no purchases of
portfolio securities while it is still subject to a reverse repurchase
agreement. The Fund has not to date entered into any reverse repurchase
agreements and presently has no intention of entering into reverse repurchase
agreements during the coming year.
    
 
   
    WHEN-ISSUED AND DELAYED DELIVERY SECURITIES AND FORWARD COMMITMENTS.  As
discussed in the Prospectus, from time to time, in the ordinary course of
business, the Fund may purchase securities on a when-issued or delayed delivery
basis and 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 the commitment. The securities so purchased are subject to market
fluctuation and no interest accrues to the purchaser during this period. 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. At the time the Fund makes the commitment to purchase securities on a
when-issued or delayed delivery basis, the Fund will record the transaction and
thereafter reflect the value, each day, of such security in determining the net
asset value of the Fund. At the time of delivery of the securities, the value
may be more or less than the purchase price. The Fund will also establish a
segregated account in which it will continuously maintain cash or U.S.
Government securities or other liquid portfolio securities equal in value to
commitments for such when-issued or delayed delivery securities; subject to this
requirement, 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-issued or delayed delivery basis may increase the
volatility of the Fund's net asset value.
    
 
   
    WHEN, AS AND IF ISSUED SECURITIES.  As discussed 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 in which it will continuously maintain cash or U.S. Government
securities or other liquid portfolio securities equal in value to recognized
commitments for such securities. Settlement of the trade will occur within five
business days of the occurrence of the subsequent event. 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 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.
    
 
    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
 
                                       27
<PAGE>
are callable at any time by the Fund (subject to notice provisions described
below), and are at all times secured by cash or appropriate high-grade debt
obligations, which are maintained in a segregated account pursuant to applicable
regulations and that are at least equal to 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 day's
notice, or by the Fund on two business days' notice. If the borrower fails to
deliver the loaned securities within two 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 creditworthiness of firms to which the Fund lends its
portfolio securities will be monitored on an ongoing basis by the Fund's
management pursuant to procedures adopted and reviewed, on an ongoing basis, by
the Board of Directors 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. The Fund has
not, to date, lent any of its portfolio securities and it does not presently
intend to lend any of its portfolio securities in the foreseeable future.
 
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.  Purchase or sell real estate or interests therein (including real
    estate limited partnerships), although the Fund may purchase securities of
    issuers which engage in real estate operations and securities secured by
    real estate or interests therein.
 
        2.  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.
 
        3.  Borrow money (except insofar as to the Fund may be deemed to have
    borrowed by entrance into a reverse repurchase agreement up to an amount not
    exceeding 10% of the Fund's total assets), 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).
 
        4.  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 (a)
    entering into any repurchase or reverse repurchase
 
                                       28
<PAGE>
    agreement; (b) purchasing any securities on a when-issued or delayed
    delivery basis; (c) purchasing or selling futures contracts, forward foreign
    exchange contracts or options; (d) borrowing money in accordance with
    restrictions described above; or (e) lending portfolio securities.
 
        5.  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 objectives and policies; (b) by investment in
    repurchase or reverse repurchase agreements; or (c) by lending its portfolio
    securities.
 
        6.  Make short sales of securities.
 
        7.  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.
 
        8.  Invest for the purpose of exercising control or management of any
    other issuer.
 
        9.  Purchase or sell commodities or commodities contracts except that
    the Fund may purchase or write interest rate, currency and stock and bond
    index futures contracts and related options thereon.
 
        10. Pledge its assets or assign or otherwise encumber them except to
    secure permitted borrowings. (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.)
 
        11. Purchase securities on margin (but the Fund may obtain short-term
    loans as are necessary for the clearance of transactions). 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.
 
    In addition, as a nonfundamental policy, the Fund will not invest in other
investment companies in reliance on Sections 12(d)(1)(F), 12(d)(1)(G) or
12(d)(1)(J) of the Act.
 
    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 Fund's Directors, the Investment
Manager and the Sub-Advisor are responsible for decisions to buy and sell
securities of 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 non-affiliated 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. The Fund also
expects that securities will be purchased at times in underwritten offerings
where the price includes a fixed amount of compensation, generally referred to
as the underwriter's concession or discount. In the underwritten offerings,
securities are purchased at a fixed price which includes an amount of
compensation equal to the underwriter's concession. On occasion, certain money
market instruments may be purchased directly from an issuer, in which case no
commissions or discounts are paid. The Fund paid $7,683,917, $8,295,697 and
$6,754,100 in brokerage commissions during the fiscal years ended October 31,
1995, 1996 and 1997, respectively.
 
                                       29
<PAGE>
    The Investment Manager and the Sub-Advisor currently serve as investment
advisers to a number of clients, including, in the case of the Investment
Manager, other investment companies, and may in the future act as investment
manager or adviser to others. It is the practice of the Investment Manager and
the Sub-Advisor 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 utilizes
a pro rata allocation process based on the size of the Morgan Stanley Dean
Witter Funds involved and the number of shares available from the public
offering.
 
    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 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 and the Sub-Advisor 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 and the Sub-Advisor rely upon their 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.
 
    The Fund anticipates that certain of its transactions involving foreign
securities will be effected on securities exchanges. Fixed commissions on such
transactions are generally higher than negotiated commissions on domestic
transactions. There is also generally less government supervision and regulation
of foreign securities exchanges and brokers than in the United States.
 
    In seeking to implement the Fund's policies, the Investment Manager and the
Sub-Advisor effect transactions with those brokers and dealers who the
Investment Manager and the Sub-Advisor believe provide the most favorable prices
and are capable of providing efficient executions. If the Investment Manager
and/or the Sub-Advisor believe such prices and executions are obtainable from
more than one broker or dealer, they 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 and/or the Sub-Advisor. 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.
 
    The information and services received by the Investment Manager and the
Sub-Advisor from brokers and dealers may be of benefit to the Investment Manager
and the Sub-Advisor in the management of accounts of some of their 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 the Sub-Advisor and thereby reduce their expenses, it is of indeterminable
value and the fees paid to the Investment Manager and the Sub-Advisor are 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
 
                                       30
<PAGE>
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.
 
    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."), other
affiliated brokers and dealers. In order for an affiliated broker-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 Directors of the Fund,
including a majority of the Directors 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. 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 period May 31 through October 31, 1997, the Fund paid a total
of $119,132 in brokerage commissions to Morgan Stanley & Co., Inc., 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
1.76% of the total brokerage commissions paid by the Fund for the year and were
paid on account of transactions having an aggregate dollar value equal to
approximately 1.83% of the aggregate dollar value of all portfolio transactions
of the Fund during the period for which commissions were paid. The Fund paid
brokerage commissions to affiliates of the Former Sub-Advisor in the amounts of
$750,676 and $177,930 for the fiscal years ended October 31, 1995 and October
31, 1996, respectively. During the fiscal year ended October 31, 1996 and 1997,
the Fund paid affiliated broker-dealers of the Former Sub-Advisor for
transactions as follows:
 
<TABLE>
<CAPTION>
                                                                                      PERCENTAGE OF
                                                                                     AGGREGATE DOLLAR
                                                                                        AMOUNT OF
                                                                                     EXECUTED TRADES
                                                BROKERAGE          PERCENTAGE OF         ON WHICH
                                            COMMISSIONS PAID         AGGREGATE          BROKERAGE
                                              TO AFFILIATED          BROKERAGE         COMMISSIONS
                                          BROKER OF SUB-ADVISOR   COMMISSIONS FOR     WERE PAID FOR
                                             FOR FISCAL YEAR        FISCAL YEAR        FISCAL YEAR
                                                  ENDED                ENDED              ENDED
NAME OF BROKER                                  10/31/97              10/31/97           10/31/97
- ----------------------------------------  ---------------------   ----------------   ----------------
<S>                                       <C>                     <C>                <C>
Deutsche Morgan Grenfell Securities Hong
 Kong Ltd...............................        $ 42,441                0.63%              0.90%
Deutsche Morgan Grenfell & Partners
 Securities Pte. Ltd....................         135,489                2.01               1.65
</TABLE>
 
PORTFOLIO TRADING
 
    It is anticipated that the Fund's portfolio turnover rate will not exceed
100% in any one year. 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 acquisition were one year or less) were sold and replaced within
one year.
 
THE DISTRIBUTOR
- --------------------------------------------------------------------------------
 
    As discussed in the Prospectus, shares of the Fund are distributed by Morgan
Stanley 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 MSDW. The
Directors of the Fund, including a majority of
 
                                       31
<PAGE>
the Directors who are not, and were not at the time they voted, interested
persons of the Fund, as defined in the Act (the "Independent Directors"),
approved, at their meeting held on June 30, 1997, the current Distribution
Agreement appointing the Distributor as 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. At their meeting held on April 30, 1998, the Directors of
the Fund, including a majority of the Independent Directors, approved the
continuation of the Distribution Agreement until April 30, 1999.
 
    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 Morgan Stanley Dean
Witter Financial Advisors and other selected broker-dealer representatives. The
Distributor also pays 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 bears the costs of registering the Fund and its
shares under federal 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 Fund's 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 $4,234,570, $3,770,779 and $4,821,220 in contingent
deferred sales charges from Class B for the fiscal years ended October 31, 1995,
1996 and 1997, respectively, (b) approximately $0 and $650 in contingent
deferred sales charges from Class A and Class C, respectively, for the fiscal
year ended October 31, 1997, and (c) approximately $11,000 in front-end sales
charges from Class A for the fiscal year ended October 31, 1997, none of which
was retained by the Distributor.
 
    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 defined in the aforementioned Rules of the Association.
 
    The Plan was adopted by a majority vote of the Board of Directors, including
all of the Directors of the Fund who are not "interested persons" of the Fund
(as defined in the Act) and who have no direct or
 
                                       32
<PAGE>
indirect financial interest in the operation of the Plan (the "Independent 12b-1
Directors"), cast in person at a meeting called for the purpose of voting on the
Plan, on July 19, 1990 and by DWR, as the then sole stockholder of the Fund on
September 27, 1990.
 
    At their meeting held on October 30, 1992, the Directors of the Fund,
including all of the independent 12b-1 Directors, had approved certain
amendments to the Plan which took effect in January, 1993 and were designed to
reflect the facts that upon an internal reorganization the share distribution
activities theretofore performed for the Fund by DWR were assumed by the
Distributor and that 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 they had been 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 Directors, including a majority of the Independent 12b-1
Directors, had also 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 Directors of the Fund, including all of the Independent 12b-1
Directors, 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 Directors, including a majority of the Independent 12b-1
Directors, 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 Directors receive and
review promptly after the end of each calendar quarter a written report provided
by the Distributor of the amounts expended by the Distributor 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 October 31, 1997 of $14,155,635. This amount is equal to payments
required to be paid monthly by the Fund which were computed at the annual rate
of 1.0% of the average daily aggregate gross sales of 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 Class B
shares redeemed since the Fund's inception upon which a contingent deferred
sales charge has been imposed or waived. This 12b-1 fee is treated by the Fund
as an expense in the year it is accrued. For the fiscal period July 28 through
October 31, 1997, Class A and Class C shares of the Fund accrued payments under
the Plan amounting to $278 and $1,074, respectively, which amounts are equal to
0.25% and 1.0% 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.
 
    With respect to Class A shares, DWR compensates its Financial Advisors 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 Morgan Stanley Dean Witter Trust FSB ("MSDW Trust"
or the "Transfer Agent") 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 Financial Advisors by paying them, from
its own funds, a gross sales credit of 1.0% of the amount sold.
 
                                       33
<PAGE>
    With respect to Class B shares, DWR compensates its Financial Advisors 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 MSDW Trust 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 Financial Advisors 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 Financial Advisors of record.
 
    With respect to Class D shares other than shares held by participants in
MSDW Advisors mutual fund asset allocation program, the Investment Manager
compensates DWR's Financial Advisors 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 Financial Advisors 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 Financial Advisors of record (not including accounts of
participants in the MSDW Advisors mutual fund asset allocation program).
 
    The gross sales credit is a charge which reflects commissions paid by DWR to
its Financial Advisors 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.
 
    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 Morgan Stanley Dean Witter Financial Advisors and
other selected broker-dealer representatives, such amounts shall be determined
at the beginning of each calendar quarter by the Directors, including a majority
of the Independent 12b-1
 
                                       34
<PAGE>
Directors. Expenses representing the service fee (for Class A) or a gross sales
credit or a residual to Morgan Stanley Dean Witter Financial Advisors and other
selected broker-dealer representatives (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 Directors 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 Directors 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 October 31, 1997 to the Distributor. The
Distributor and DWR estimate that they have spent, pursuant to the Plan,
$117,676,867 on behalf of Class B since the inception of the Fund. It is
estimated that this amount was spent in approximately the following ways: (i)
3.09% ($3,631,997)--advertising and promotional expenses; (ii) 0.33%
($385,170)--printing of prospectuses for distribution to other than current
shareholders; and (iii) 96.58% ($113,659,700)--other expenses, including the
gross sales credit and the carrying charge, of which 7.75% ($8,809,628)
represents carrying charges, 37.06% ($42,118,274) represents commission credits
to DWR branch offices for payments of commissions to account executives and
55.19% ($62,731,798) represents overhead and other branch office
distribution-related expenses. The amounts accrued by Class A and Class C for
distribution during the fiscal period July 28 through October 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 $41,117,586 as of
October 31, 1997. Because there is no requirement under the Plan that the
Distributor be reimbursed for all its 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 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 Directors 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 Director of the Fund who is not an
interested person of the Fund, as defined in the Act, has any direct or indirect
financial interest in the operation of the Plan except to the extent that the
Distributor, MSDW Advisors, MSDW Services, DWR or certain of its 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, 1991, and
provided that it will remain in effect from year to year thereafter, provided
such continuance is approved annually by a vote of the Directors, including a
majority of the Directors 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 Directors"). The Plan was most
recently submitted to and approved for continuance for one year, until April 30,
1999, by the Directors of the Fund, including a majority of the Independent
12b-1 Directors, at their meeting held on April 30, 1998, after evaluating all
the information they deemed necessary to make an informed determination of
whether the Plan should be continued. In making their
 
                                       35
<PAGE>
determination to continue the Plan, the Directors 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 by DWR to the Fund
and its shareholders. Based upon their review, the Directors of the Fund,
including each of the Independent 12b-1 Directors, 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 Directors' 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 of the shareholders of the
affected Class or Classes of the Fund, and all material amendments of the Plan
must also be approved by the Directors 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 Directors 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 Directors shall be
committed to the discretion of the Independent Directors.
 
DETERMINATION OF NET ASSET VALUE
- --------------------------------------------------------------------------------
 
    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 and on each other day in which there is a
sufficient degree of trading in the Fund's investments to affect the net asset
value, except that the net asset value may not be computed on a day on which no
orders to purchase, or tenders to sell or redeem, Fund shares have been
received, by taking the value of all assets of the Fund, subtracting its
liabilities, dividing by the number of shares outstanding and adjusting 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; President's
Day; Good Friday; Memorial Day; Independence Day; Labor Day; Thanksgiving Day;
and Christmas Day.
 
    Short-term debt securities with remaining maturities of sixty days or less
at the time of purchase are valued at amortized cost, unless the Directors
determine such does not reflect the securities' fair value, in which case these
securities will be valued at their fair value as determined by the Directors.
Other short-term debt securities will be valued on a mark-to-market basis until
such time as they reach a remaining maturity of sixty days, whereupon they will
be valued at amortized cost using their value on the 61st day unless the
Directors determine such does not reflect the securities' fair value, in which
case these securities will be valued at their fair value as determined by the
Directors. Options are valued at the mean between their latest bid and asked
prices. Futures are valued at the last sale price as of the close of the
commodities exchange on which they trade unless the Directors 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 Directors. 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 Directors.
 
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.
 
                                       36
<PAGE>
    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 Morgan Stanley Dean Witter Funds that are
multiple class funds ("Morgan Stanley Dean Witter Multi-Class Funds") or shares
of other Morgan Stanley 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 Morgan Stanley Dean Witter Trust FSB ("MSDW
Trust" or "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 Morgan Stanley Dean
Witter Funds held by the shareholder which were previously purchased at a price
including a front-end sales charge (including shares of the Fund and other
Morgan Stanley 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
Morgan Stanley 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%
 
                                       37
<PAGE>
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 Morgan Stanley Dean Witter Fund (see
"Shareholder Services-- Targeted Dividends"), plus (c) the current net asset
value of shares acquired in exchange for (i) shares of Morgan Stanley Dean
Witter front-end sales charge funds, or (ii) shares of other Morgan Stanley 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 Morgan Stanley Dean Witter front-end sales
charge funds, or for shares of other Morgan Stanley 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, 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
        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>
 
                                       38
<PAGE>
    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 MSDW Trust serves as Trustee or DWR's Retirement Plan Services
serves as recordkeeper pursuant to a written Recordkeeping Services Agreement:
 
<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>
 
    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 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 another selected
broker-dealer, and will be forwarded to the
 
                                       39
<PAGE>
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 uncashed checks.
 
   
    TARGETED DIVIDENDS-SM-.  In states where it 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 Morgan Stanley Dean
Witter Fund other than Morgan Stanley Dean Witter Pacific Growth Fund Inc. or in
another Class of Morgan Stanley Dean Witter Pacific Growth Fund Inc. 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 Morgan Stanley 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 Morgan Stanley Dean Witter Fund the next business day.
To participate in the Targeted Dividends program, shareholders should contact
their Morgan Stanley Dean Witter Financial Advisor or other selected
broker-dealer representative or the Transfer Agent. Shareholders of the Fund
must be shareholders of the selected Class of the Morgan Stanley 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 Morgan Stanley 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 Morgan Stanley 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 Morgan Stanley 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 Morgan Stanley Dean Witter Financial Advisor
or other selected broker-dealer representative or the Transfer Agent.
 
   
    INVESTMENT OF DIVIDENDS OR 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 the 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 check or proceeds by the Transfer Agent.
    
 
   
    SYSTEMATIC WITHDRAWAL PLAN.  As discussed in the Prospectus, a systematic
withdrawal plan (the "Withdrawal Plan") is available for shareholders whose
shares of Morgan Stanley Dean Witter Funds have an aggregate value of $10,000 or
more. Shares of any Fund from which redemptions will be made pursuant to the
Plan must have a value of $1,000 or more (referred to as a "SWP Fund"). The
required share values are determined on the date the shareholder establishes the
Withdrawal Plan. The Withdrawal Plan provides for monthly, quarterly,
semi-annual or annual payments in any amount not less than $25, or in any whole
percentage of the value of the SWP Funds' shares, on an annualized basis. Any
applicable Contingent Deferred Sales Charge ("CDSC") will be imposed on shares
redeemed under the Withdrawal Plan (see "Purchase of Fund Shares"), except that
the CDSC, if any, will be waived on redemptions under the Withdrawal Plan of up
to 12% annually of the value of each SWP Fund account, based on the share values
next determined after the shareholder establishes the Withdrawal Plan.
Redemptions for which this CDSC waiver policy applies may be in amounts up to 1%
per month, 3% per quarter, 6% semi-annually or 12% annually. Under this CDSC
waiver policy, amounts withdrawn each period will be paid by first redeeming
shares not subject to a CDSC because the shares were purchased by the
reinvestment of dividends or capital gains distributions, the CDSC period has
elapsed or some other waiver of the CDSC applies. If shares subject to a CDSC
must be redeemed, shares held for the longest period of time will be redeemed
first and continuing with shares held the next longest period of
    
 
                                       40
<PAGE>
   
time until shares held the shortest period of time are redeemed. 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, quarterly, semi-annual or annual
amount.
    
 
   
    A shareholder may suspend or terminate participation in the Withdrawal Plan
at any time. A shareholder who has suspended participation may resume payments
under the Withdrawal Plan, without requiring a new determination of the account
value for the 12% CDSC waiver. The Withdrawal Plan may be terminated or revised
at any time by the Fund.
    
 
   
    Prior to adding an additional SWP Fund to an existing Withdrawal Plan, the
required $10,000/$1,000 share values must be met, to be calculated on the date
the shareholder adds the additional SWP Fund. However, the addition of a new SWP
Fund will not change the account value for the 12% CDSC waiver for the SWP Funds
already participating in the Withdrawal Plan.
    
 
   
    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, quarter, or semi-annual or annual period and normally a check
for the proceeds will be mailed by the Transfer Agent, or amounts credited to a
shareholder's Dean Witter Reynolds Inc. or other selected broker-dealer
brokerage account, or amounts deposited electronically into the shareholder's
bank account via the Automated Clearing House, within five business days after
the date of redemption.
    
 
   
    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 a shareholder may make additional
investments while participating in the Withdrawal Plan, withdrawals made
concurrently with purchases of additional shares are inadvisable because of
sales charges applicable to purchases or redemptions of shares (see "Purchase of
Fund Shares" in the Prospectus).
    
 
   
    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 through
his or her Morgan Stanley Dean Witter Financial Advisor or other selected
broker-dealer representative or 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 regular
Shareholder Investment Account. The shareholder may also redeem all or part of
the shares held in the Withdrawal Plan account (see "Redemptions and
Repurchases" in the Prospectus) at any time.
    
 
    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 Morgan Stanley Dean Witter Pacific Growth Fund Inc., 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
 
                                       41
<PAGE>
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 the Fund may
exchange their shares for shares of the same Class of shares of any other Morgan
Stanley Dean Witter Multi-Class Fund without the imposition of any exchange fee.
Shares may also be exchanged for shares of any of the following funds: Morgan
Stanley Dean Witter Short-Term U.S. Treasury Trust, Morgan Stanley Dean Witter
Limited Term Municipal Trust, Morgan Stanley Dean Witter Short-Term Bond Fund
and five Morgan Stanley Dean Witter Funds which are money market funds (the
foregoing eight funds are hereinafter referred to as "Exchange Funds"). Class A
shares may also be exchanged for shares of Morgan Stanley Dean Witter
Multi-State Municipal Series Trust and Morgan Stanley Dean Witter Hawaii
Municipal Trust, which are Morgan Stanley Dean Witter Funds sold with a
front-end sales charge ("FSC Funds"). Class B shares may also be exchanged for
shares of Morgan Stanley Dean Witter Global Short-Term Income Fund Inc. ("Global
Short-Term"), which is a Morgan Stanley 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 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 Morgan Stanley
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 investment
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 Morgan Stanley Dean
Witter Multi-Class Fund or in Global Short-Term. However, in the case of shares
exchanged for shares of 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 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 Morgan Stanley Dean Witter
Multi-Class Fund or Global Short-Term from the money market fund, with no CDSC
being imposed on such exchange. The investment 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 Morgan Stanley Dean Witter Multi-Class
Fund or of Global Short-Term are reacquired. Thus, a CDSC is imposed only upon
an ultimate redemption, based upon the time (calculated as described above) the
shareholder was invested in a Morgan Stanley 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.
 
                                       42
<PAGE>
    When shares initially purchased in a Morgan Stanley Dean Witter Multi-Class
Fund or in Global Short-Term are exchanged for shares of a Morgan Stanley 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 (of the
Fund or another Morgan Stanley Dean Witter Fund) and (iii) acquired in exchange
for shares of FSC Funds, or for shares of other Morgan Stanley Dean Witter Funds
for which shares of FSC Funds have been exchanged (all such shares called "Free
Shares"), will be exchanged first. Shares of Morgan Stanley Dean Witter
Strategist Fund acquired prior to November 8, 1989, shares of Morgan Stanley
Dean Witter American Value Fund acquired prior to April 30, 1984, and shares of
Morgan Stanley Dean Witter Dividend Growth Securities Inc. and Morgan Stanley
Dean Witter Natural Resource Development Securities Inc. acquired prior to July
2, 1984, will be the first Free Shares to be exchanged. 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 a
block 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 Morgan Stanley Dean
Witter Liquid Asset Fund Inc., Morgan Stanley Dean Witter New York
 
                                       43
<PAGE>
Municipal Money Market Trust, Morgan Stanley Dean Witter Tax-Free Daily Income
Trust and Morgan Stanley Dean Witter California Tax-Free Daily Income Trust
although those funds may, at 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 Morgan Stanley 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 investment for the Exchange Privilege account of each
Class is $5,000 for Morgan Stanley Dean Witter Special Value Fund. The minimum
initial investment for the Exchange Privilege account of each Class for all
other Morgan Stanley 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 money
market funds, including the check writing feature, will not be available for
funds held in that account.
 
    The Fund and each of the other Morgan Stanley 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 may be
terminated or revised at any time by the Fund and/or any of the Morgan Stanley
Dean Witter Funds for which shares of the Fund have been exchanged, upon such
notice as may be required by applicable regulatory agencies (presently sixty
days 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(s), policies and restrictions.
 
    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. 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.
 
    For further information regarding the Exchange Privilege, shareholders
should contact their Morgan Stanley Dean Witter Financial Advisor or other
selected broker-dealer representative 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 shareholder, 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") after it receives the request, and
 
                                       44
<PAGE>
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 by 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.
 
    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 fairly to 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 (including a certified check or bank cashier's
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 broker-dealer are referred to their Morgan Stanley
Dean Witter Financial Advisor or other selected broker-dealer representative
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 an 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.
 
                                       45
<PAGE>
    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 such
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.
 
DIVIDENDS, DISTRIBUTIONS AND TAXES
- --------------------------------------------------------------------------------
 
    As discussed in the Prospectus, 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, if the Fund makes an election, the shareholders would include
such undistributed gains in their income 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.
 
    Gains or losses on sales of securities by the Fund will generally be
long-term capital gains or losses if the securities have been held by the Fund
for more than twelve months. Gains or losses on the sale of securities held for
twelve months or less will be generally short-term capital 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. The Taxpayer Relief Act reduces the maximum
tax rate on long-term capital gains from 28% to 20%; it also lengthens the
required holding period to obtain the lower rate from more than twelve months to
more than eighteen months. However, the IRS Restructuring and Reform Act of 1998
reduces the holding period requirement for the lower capital gain rate to more
than twelve months for transactions occurring after January 1, 1998. 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%.
    
 
    The Fund intends to remain qualified as a regulated investment company under
Subchapter M of the Internal Revenue Code of 1986. As such, the Fund will not be
subject to federal income tax on its net investment income and capital gains, if
any, realized during any fiscal year in which it distributes such income and
capital gains to its shareholders. 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 and/or local 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 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 received by the shareholder in the prior year.
 
    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
 
                                       46
<PAGE>
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 distribution
record date.
 
    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.
 
    Dividends, interest and capital gains received by the Fund may give rise to
withholding and other taxes imposed by foreign countries. Tax conventions
between certain countries and the United States may reduce or eliminate such
taxes. Investors may be entitled to claim United States foreign tax credits or
deductions with respect to such taxes, subject to certain provisions and
limitations contained in the Code. If more than 50% of the Fund's total assets
at the close of its fiscal year consist of securities of foreign corporations,
the Fund would be eligible and would determine whether or not to file an
election with the Internal Revenue Service pursuant to which shareholders of the
Fund will be required to include their respective pro rata portions of such
withholding taxes in their United States income tax returns as gross income,
treat such respective pro rata portions as taxes paid by them, and deduct such
respective pro rata portions in computing their taxable income or,
alternatively, use them as foreign tax credits against their United States
income taxes. If the Fund does elect to file the election with the Internal
Revenue Service, the Fund will report annually to its shareholders the amount
per share of such withholding.
 
    SPECIAL RULES FOR CERTAIN FOREIGN CURRENCY TRANSACTIONS.  In general, gains
from foreign currencies and from foreign currency options, foreign currency
futures and forward foreign exchange contracts relating to investments in stock,
securities or foreign currencies are currently considered to be qualifying
income for purposes of determining whether the Fund qualifies as a regulated
investment company. It is currently unclear, however, who will be treated as the
issuer of certain foreign currency instruments or how foreign currency options,
futures, or forward foreign currency contracts will be valued for purposes of
the regulated investment company diversification requirements applicable to the
Fund.
 
    Under Code Section 988, special rules are provided for certain transactions
in a foreign currency other than the taxpayer's functional currency (I.E.,
unless certain special rules apply, currencies other than the U.S. dollar). In
general, foreign currency gains or losses from forward contracts, from futures
contracts that are not "regulated futures contracts," and from unlisted options
will be treated as ordinary income or loss under Code Section 988. Also, certain
foreign exchange gains or losses derived with respect to foreign fixed-income
securities are also subject to Section 988 treatment. In general, therefore,
Code Section 988 gains or losses will increase or decrease the amount of the
Fund's investment company taxable income available to be distributed to
shareholders as ordinary income, rather than increasing or decreasing the amount
of the Fund's net capital gain. Additionally, if Code Section 988 losses exceed
other investment company taxable income during a taxable year, the Fund would
not be able to make any ordinary dividend distributions.
 
    The Fund may be subject to taxes in foreign countries in which it invests.
In addition, if the Fund were deemed to be a resident of the United Kingdom for
United Kingdom tax purposes or if the Fund were treated as being engaged in a
trading activity through an agent in the United Kingdom, there is a risk that
the United Kingdom would attempt to tax all or a portion of the Fund's gains or
income. In light of the structure of the Fund and the terms and conditions of
the Investment Management and Sub-Advisory Agreements, it is believed by the
Investment Manager that any such risk is minimal.
 
    If the Fund invests in an entity which is classified as a "passive foreign
investment company" ("PFIC") for U.S. tax purposes, the application of certain
technical tax provisions applying to such companies could result in the
imposition of federal income tax with respect to such investments at the Fund
level which could not be eliminated by distributions to shareholders. The
Taxpayer Relief Act of 1997 establishes a mark-to-market regime which allows
taxpayers investing in PFIC's to avoid most, if not all of the difficulties
posed by the PFIC rules. In any event, it is not anticipated that any taxes on
the Fund with respect to investments in PFIC's would be significant.
 
                                       47
<PAGE>
   
    Shareholders are urged to consult their attorneys or tax advisors 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
"total return" in advertisements and sales literature. These figures are
computed separately for Class A, Class B, Class C and Class D shares. 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 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 returns of Class B for the one year and five year period ended
October 31, 1997 and for the period from November 30, 1990 (commencement of
operations) through October 31, 1997 were -34.41%, 1.96% and 5.50%,
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 October 31,
1997 were -37.16%, -34.49% and -33.68% 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 returns of Class B for the one year and five year
period ended October 31, 1997 and the period from November 30, 1990
(commencement of operations) through October 31, 1997 were -31.01%, 2.33% and
5.50%, respectively.
 
    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 returns for Class B for the one year and five year period
ended October 31, 1997 and the period from November 30, 1990 (commencement of
operations) through October 31, 1997 were -31.01%, 12.18% and 44.86%,
respectively. Based on the foregoing calculations, the total returns for Class
A, Class C and Class D for the period July 28 through October 31, 1997 were
- -33.68%, -33.83% and -33.68%, 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
 
                                       48
<PAGE>
(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 (or declined)
to the following amounts at October 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  $   6,284  $  31,834  $    64,330
Class B..........................................................    11/30/90     14,486     72,430      144,860
Class C..........................................................     7/28/97      6,617     33,085       66,170
Class D..........................................................     7/28/97      6,632     33,160       66,320
</TABLE>
 
    The Fund from time to time may also advertise its performance relative to
certain performance rankings and indexes compiled by independent organizations.
 
DESCRIPTION OF COMMON STOCK
- --------------------------------------------------------------------------------
 
    The Fund is authorized to issue 2 billion shares of common stock of $0.01
par value. Shares of the Fund, when issued, are fully paid, non-assessable,
fully transferable and redeemable at the option of the holder. All shares are
equal as to earnings, assets and voting privileges. There are no conversion,
preemptive or other subscription rights. In the event of liquidation, each share
of common stock of the Fund is entitled to its portion of all of the Fund's
assets after all debts and expenses have been paid. Except for agreements
entered into by the Fund in its ordinary course of business within the
limitations of the Fund's fundamental investment policies (which may be modified
only by shareholder vote), the Fund will not issue any securities other than
common stock.
 
    The shares of the Fund do not have cumulative voting rights, which means
that the holders of more than 50% of the shares voting for the election of
Directors can elect 100% of the Directors if they choose to do so, and in such
event, the holders of the remaining less than 50% of the shares voting for the
election of directors will not be able to elect any person or persons to the
Board of Directors.
 
    The Fund's By-Laws provide that one or more of the Fund's Directors may be
removed, either with or without cause, at any time by the affirmative vote of
the Fund's shareholders holding a majority of the outstanding shares entitled to
vote for the election of Directors. A special meeting of the shareholders of the
Fund will be called by the Fund's Secretary upon the written request of
shareholders entitled to vote at least 10% of the Fund's outstanding shares. The
Fund will also comply with the provisions of Section 16(c) of the Act.
 
CUSTODIAN AND TRANSFER AGENT
- --------------------------------------------------------------------------------
 
    The Chase Manhattan Bank, One Chase Plaza, New York, New York 10005 is the
Custodian of the Fund's assets in the United States and around the world. As
Custodian, The Chase Manhattan Bank has contracted with various foreign banks
and depositaries to hold portfolio securities of non-U.S. issuers on behalf of
the Fund. 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.
 
    Morgan Stanley Dean Witter Trust FSB ("MSDW Trust"), 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. Morgan Stanley Dean Witter Trust FSB is an affiliate of
Morgan Stanley Dean Witter Advisors Inc., the Fund's Investment Manager and
Morgan Stanley Dean Witter Distributor Inc., the Fund's Distributor. As Transfer
Agent and Dividend Disbursing Agent, MSDW Trust's responsibilities include
maintaining shareholder accounts, disbursing cash dividends and reinvesting
 
                                       49
<PAGE>
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 MSDW Trust receives a per
shareholder account fee.
 
INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
 
    PricewaterhouseCoopers LLP serves as the independent accountants of the
Fund. The independent accountants are responsible for auditing the annual
financial statements of the Fund.
 
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 October 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 Directors.
 
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 fiscal year ended October 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 PricewaterhouseCoopers 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.
 
                                       50
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  COMMON STOCKS, WARRANTS, RIGHTS AND BONDS (95.2)
                  AUSTRALIA (6.3%)
                  BANKING
        700,000   Australia & New Zealand Banking Group Ltd.......................................  $  4,867,050
      1,500,000   Westpac Banking Corp., Ltd......................................................     8,705,178
                                                                                                    ------------
                                                                                                      13,572,228
                                                                                                    ------------
                  BUILDING & CONSTRUCTION
      1,666,000   Boral Ltd.......................................................................     4,367,196
                                                                                                    ------------
                  ENERGY
        500,000   Woodside Petroleum Ltd..........................................................     4,208,904
                                                                                                    ------------
                  FOOD, BEVERAGE, TOBACCO & HOUSEHOLD PRODUCTS
      1,200,000   Foster's Brewing Group Ltd......................................................     2,270,916
      6,000,000   Goodman Fielder Ltd.............................................................     9,167,772
                                                                                                    ------------
                                                                                                      11,438,688
                                                                                                    ------------
                  METALS & MINING
        450,000   Broken Hill Proprietary Co., Ltd................................................     4,447,211
                                                                                                    ------------
                  MULTI-INDUSTRY
      1,750,000   Pacific Dunlop Ltd..............................................................     3,725,108
                                                                                                    ------------
                  RETAIL STORES
      1,000,000   Coles Myer Ltd..................................................................     4,794,156
                                                                                                    ------------
 
                  TOTAL AUSTRALIA.................................................................    46,553,491
                                                                                                    ------------
                  CHINA (0.8%)
                  AUTOMOTIVE
      2,200,000   Qingling Motors Co..............................................................     1,437,537
                                                                                                    ------------
                  TRANSPORTATION
      1,700,000   Jinhui Shipping and Transportation Ltd..........................................     1,210,964
                                                                                                    ------------
                  UTILITIES - ELECTRIC
     10,350,000   Zhejiang Southeast Electric Power Co., Ltd. (B Shares)..........................     3,332,700
                                                                                                    ------------
                  TOTAL CHINA.....................................................................     5,981,201
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  HONG KONG (33.7%)
                  BANKING
        750,400   Bank of East Asia, Ltd..........................................................  $  1,679,746
        450,200   Dah Sing Financial Group........................................................     1,130,087
      1,285,838   Dao Heng Bank Group Ltd.........................................................     2,961,495
        504,000   Guoco Group Ltd.................................................................     1,102,103
      1,600,000   Hang Seng Bank Ltd..............................................................    13,922,495
        230,000   HSBC Holdings PLC...............................................................     5,207,996
        156,000   International Bank of Asia......................................................        72,666
                                                                                                    ------------
                                                                                                      26,076,588
                                                                                                    ------------
                  CONGLOMERATES
        250,000   Citic Pacific Ltd...............................................................     1,196,869
      6,568,000   Hutchison Whampoa, Ltd..........................................................    45,466,520
        514,800   Jardine Matheson Holdings Ltd...................................................     3,294,720
        920,000   Shanghai Industrial Holdings Ltd................................................     4,094,973
      1,500,000   Swire Pacific Ltd. (Class A)....................................................     8,015,786
                                                                                                    ------------
                                                                                                      62,068,868
                                                                                                    ------------
                  ELECTRONIC & ELECTRICAL EQUIPMENT
      1,500,000   ASM Pacific Technology Ltd......................................................     1,125,704
      6,700,000   Elec & Eltek International Holdings Ltd.........................................     2,470,725
        843,000   Johnson Electric Holdings Ltd...................................................     2,301,520
                                                                                                    ------------
                                                                                                       5,897,949
                                                                                                    ------------
                  ENGINEERING & CONSTRUCTION
        673,000   Cheung Kong Infrastructure Holdings.............................................     1,741,606
      1,000,000   Road King Infrastructure Ltd.*..................................................       646,956
                                                                                                    ------------
                                                                                                       2,388,562
                                                                                                    ------------
                  HOTELS/MOTELS
      6,000,000   CDL Hotels International, Ltd...................................................     1,727,373
                                                                                                    ------------
                  INVESTMENT COMPANIES
        100,000   Investment Co. of China*** *....................................................       494,000
                                                                                                    ------------
                  LIFE INSURANCE
        999,000   National Mutual Asia Ltd........................................................       904,833
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       51
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997, CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  PUBLISHING
      3,000,000   South China Morning Post (Holdings) Ltd.........................................  $  2,600,763
                                                                                                    ------------
                  REAL ESTATE
      1,500,000   Amoy Properties, Ltd............................................................     1,290,677
      4,215,000   Cheung Kong (Holdings) Ltd......................................................    29,314,388
      1,300,000   China Resources Enterprise Ltd..................................................     3,566,022
      1,260,000   Great Eagle Holdings Ltd........................................................     1,923,789
        600,000   Henderson Land Development Co., Ltd.............................................     3,322,766
      2,100,000   Hong Kong Land Holdings Ltd.....................................................     4,788,000
        400,200   Hysan Development Co., Ltd......................................................       836,285
      4,333,000   New World Development Co., Ltd..................................................    15,249,738
      3,222,500   Sun Hung Kai Properties Ltd.....................................................    23,766,902
      3,074,000   Wharf (Holdings) Ltd............................................................     6,284,428
                                                                                                    ------------
                                                                                                      90,342,995
                                                                                                    ------------
                  RETAIL - SPECIALTY APPAREL
        412,000   Dickson Concepts International Ltd. (New).......................................       887,598
                                                                                                    ------------
                  TELECOMMUNICATIONS
     11,500,400   Hong Kong Telecommunications Ltd................................................    22,023,151
                                                                                                    ------------
                  TRANSPORTATION
      3,450,000   Cosco Pacific Ltd...............................................................     4,017,597
                                                                                                    ------------
                  UTILITIES
      2,209,000   China Light & Power Co., Ltd....................................................    11,633,085
      5,850,000   Hong Kong & China Gas Co., Ltd..................................................    11,051,304
      2,700,000   Hong Kong Electric Holdings Ltd.................................................     9,153,135
                                                                                                    ------------
                                                                                                      31,837,524
                                                                                                    ------------
 
                  TOTAL HONG KONG.................................................................   251,267,801
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
 
                  INDIA (1.3%)
                  ALUMINUM
         91,000   Hindalco Industries Ltd. (GDR)*.................................................  $  2,502,500
                                                                                                    ------------
                  BANKS
        213,000   State Bank of India (GDR)*......................................................     3,780,750
                                                                                                    ------------
                  TEXTILES
         70,000   Reliance Industries Ltd. (GDR)..................................................     1,426,250
$         2,000 K Reliance Industries Ltd. 3.50% due 11/03/99 (Conv.).............................     2,270,000
                                                                                                    ------------
                                                                                                       3,696,250
                                                                                                    ------------
 
                  TOTAL INDIA.....................................................................     9,979,500
                                                                                                    ------------
 
                  INDONESIA (5.7%)
                  AUTO PARTS
     16,000,000   PT Gajah Tunggal................................................................     2,681,564
                                                                                                    ------------
                  BANKING
     13,730,200   Pt Bank Bira....................................................................     1,917,626
      1,000,000   PT Bank Dagang Nasional Indonesia (Rights)*.....................................        30,447
        906,730   PT Bank Internasional Indonesia (Warrants due 01/17/00)*........................        51,668
      6,997,500   PT Pan Indonesia Bank...........................................................     1,563,687
        999,642   PT Pan Indonesia Bank (Warrants due 06/26/00)*..................................        25,131
                                                                                                    ------------
                                                                                                       3,588,559
                                                                                                    ------------
                  BUILDING MATERIALS
     10,333,096   PT Mulia Industrindo*...........................................................     1,876,121
                                                                                                    ------------
                  CONGLOMERATES
      2,500,000   PT Bimantara Citra..............................................................     2,304,469
                                                                                                    ------------
                  CONSTRUCTION EQUIPMENT
      1,900,000   PT United Tractors..............................................................     1,326,816
                                                                                                    ------------
                  CONSTRUCTION PLANT & EQUIPMENT
     11,000,000   PT Citra Marga Nusaphala Persada................................................     3,149,441
                                                                                                    ------------
                  FOOD, BEVERAGE, TOBACCO & HOUSEHOLD PRODUCTS
        568,000   PT Hanjaya Mandala Sampoerna....................................................       995,587
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       52
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997, CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  FOREST PRODUCTS, PAPER & PACKING
         34,874   PT Indah Kiat Pulp & Paper Corp.................................................  $     13,394
        993,175   PT Pabrik Kertas Tjiwi Kimia....................................................       367,586
        310,300   PT Pabrik Kertas Tjiwi Kimia (Warrants due 07/15/02)*...........................        39,004
                                                                                                    ------------
                                                                                                         419,984
                                                                                                    ------------
                  INVESTMENT COMPANIES
      2,500,000   Peregrine Indonesia Fund Ltd. (Units)++**.......................................     2,387,750
                                                                                                    ------------
                  METALS
      3,523,000   PT Tambang Timah................................................................     4,231,536
                                                                                                    ------------
                  OIL & GAS EXPLORATION
        100,000   Gulf Indonesia Resources Ltd.*..................................................     2,100,000
                                                                                                    ------------
                  PHARMACEUTICALS
      3,000,000   PT Kalbe Farma..................................................................     1,843,576
                                                                                                    ------------
                  PLANTATION
      3,530,100   PT London Sumatra Indonesia.....................................................     3,820,988
                                                                                                    ------------
                  PROPERTY
        200,000   PT Kawasan Jababeka - 144A** (GDR)*.............................................       776,000
                                                                                                    ------------
                  RETAIL - DEPARTMENT STORES
      2,710,000   PT Ramayana Lestari Sentosa*....................................................     4,617,598
                                                                                                    ------------
                  TELECOMMUNICATIONS
      7,058,000   PT Telekomunikasi Indonesia.....................................................     6,604,553
                                                                                                    ------------
 
                  TOTAL INDONESIA.................................................................    42,724,542
                                                                                                    ------------
 
                  JAPAN (22.0%)
                  AGRICULTURE
          2,500   Hokuto Corp.....................................................................        70,865
                                                                                                    ------------
                  APPAREL
         41,000   World Co., Ltd..................................................................     1,516,625
                                                                                                    ------------
                  AUTO TRUCKS & PARTS
        110,000   NGK Spark Plug Co., Ltd.........................................................       765,337
         55,000   Yasunaga Corp...................................................................       457,190
                                                                                                    ------------
                                                                                                       1,222,527
                                                                                                    ------------
                  AUTOMOTIVE
         97,000   Honda Motor Co..................................................................     3,265,586
        112,000   Toyota Motor Corp...............................................................     3,118,870
                                                                                                    ------------
                                                                                                       6,384,456
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  BANKING
        217,000   Asahi Bank, Ltd.................................................................  $  1,125,586
        246,000   Bank of Tokyo-Mitsubishi Ltd....................................................     3,210,474
        196,000   Mitsui Trust & Banking Co., Ltd.................................................       681,031
        158,000   Sanwa Bank, Ltd.................................................................     1,589,194
        157,000   Sumitomo Bank...................................................................     1,670,490
        164,000   Sumitomo Trust & Banking........................................................     1,250,108
                                                                                                    ------------
                                                                                                       9,526,883
                                                                                                    ------------
                  BUILDING & CONSTRUCTION
         55,000   Kaneshita Construction..........................................................       368,038
                                                                                                    ------------
                  BUILDING MATERIALS
         94,000   Ibiden Co., Ltd.................................................................     1,562,760
        276,000   Sanwa Shutter...................................................................     1,734,464
                                                                                                    ------------
                                                                                                       3,297,224
                                                                                                    ------------
                  BUSINESS SERVICES
        185,000   Ricoh Co., Ltd..................................................................     2,383,624
         36,000   Secom Co........................................................................     2,328,180
                                                                                                    ------------
                                                                                                       4,711,804
                                                                                                    ------------
                  CHEMICALS
        707,000   Mitsubishi Chemical Corp........................................................     1,592,660
        132,000   Mitsubishi Gas Chemical Co......................................................       459,751
        489,000   Nippon Zeon Co., Ltd............................................................     1,772,269
        104,000   Shin-Etsu Chemical Co...........................................................     2,541,646
        225,000   Sumitomo Bakelite Co., Ltd......................................................     1,569,202
                                                                                                    ------------
                                                                                                       7,935,528
                                                                                                    ------------
                  COMMERCIAL SERVICES
         30,000   Nichii Gakkan Co................................................................     1,221,945
                                                                                                    ------------
                  COMPUTER SOFTWARE & SERVICES
         84,000   Hitachi Software Engineering Co., Ltd...........................................     2,283,292
         13,000   Ines Corp.......................................................................       184,788
         53,000   Meitec Corp.....................................................................     1,564,007
         16,000   Nintendo Co., Ltd...............................................................     1,383,209
             62   NTT Data Corp...................................................................     2,963,425
         34,000   Ricoh Elemex....................................................................       276,974
                                                                                                    ------------
                                                                                                       8,655,695
                                                                                                    ------------
                  COMPUTERS
         21,000   Nidec Corp......................................................................       820,449
                                                                                                    ------------
                  ELECTRIC
         80,000   Tokyo Electric Power Co.........................................................     1,529,510
                                                                                                    ------------
                  ELECTRONIC & ELECTRICAL EQUIPMENT
         27,000   Advantest Corp..................................................................     2,233,167
        130,000   Aiwa Co., Ltd...................................................................     2,906,899
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       53
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997, CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
    Y   100,000 K Canon, Inc. 1.20% due 12/20/05 (Conv.)..........................................  $  1,828,761
    Y    50,000 K Canon, Inc. 1.30% due 12/19/08 (Conv.)..........................................       813,383
        224,000   Fujitsu, Ltd....................................................................     2,457,855
        176,000   Hitachi, Ltd....................................................................     1,353,283
         60,000   Mitsui High-Tec.................................................................     1,366,584
         37,000   Murata Manufacturing Co., Ltd...................................................     1,500,914
         33,600   Sony Corp.......................................................................     2,790,224
        135,000   Sumitomo Electric Industries....................................................     1,784,289
         34,000   TDK Corp........................................................................     2,820,615
                                                                                                    ------------
                                                                                                      21,855,974
                                                                                                    ------------
                  ELECTRONIC COMPONENTS
        155,000   Dainippon Screen Manufacturing Co., Ltd.........................................     1,257,523
         70,000   Mitsumi Electric Co., Ltd.......................................................     1,373,234
          2,000   Sunx Ltd........................................................................        20,948
                                                                                                    ------------
                                                                                                       2,651,705
                                                                                                    ------------
                  ELECTRONICS
         29,000   Rohm Co., Ltd...................................................................     2,868,662
                                                                                                    ------------
                  ELECTRONICS - SEMICONDUCTORS/COMPONENTS
         33,000   Shinko Electric Industries Co., Ltd.............................................     1,399,003
        100,000   Toshiba Ceramics Co., Ltd.......................................................       642,560
                                                                                                    ------------
                                                                                                       2,041,563
                                                                                                    ------------
                  ELECTRONICS - SPECIALTY
         90,000   Taiyo Yuden Co., Ltd............................................................     1,039,900
                                                                                                    ------------
                  ENGINEERING & CONSTRUCTION
        364,000   Kajima Corp.....................................................................     1,630,889
         55,500   Nitto Kohki Co., Ltd............................................................       991,895
                                                                                                    ------------
                                                                                                       2,622,784
                                                                                                    ------------
                  ENTERTAINMENT
         33,000   H.I.S. Co., Ltd.................................................................     1,072,569
         37,700   Sony Music Entertainment Inc....................................................     1,325,611
                                                                                                    ------------
                                                                                                       2,398,180
                                                                                                    ------------
                  FINANCIAL SERVICES
         15,400   Nichiei Co., Ltd. (Kyoto).......................................................     1,689,776
        156,000   Nomura Securities Co., Ltd......................................................     1,815,461
         27,500   Orix Corp.......................................................................     1,879,052
                                                                                                    ------------
                                                                                                       5,384,289
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  FOOD, BEVERAGE, TOBACCO & HOUSEHOLD PRODUCTS
        163,000   Nippon Meat Packers, Inc........................................................  $  2,276,309
                                                                                                    ------------
                  HAND TOOLS
         16,000   Disco Corp......................................................................       514,713
                                                                                                    ------------
                  INDUSTRIALS
    Y    43,000 K Nippon Densan Corp. 1.00% 09/30/03 (Conv.)......................................       482,544
                                                                                                    ------------
                  INSURANCE
        249,000   Tokio Marine & Fire Insurance Co................................................     2,483,791
                                                                                                    ------------
                  MACHINERY
        212,000   Daifuku Co., Ltd................................................................     1,589,559
         88,000   Fuji Machine Manufacturing Co., Ltd.............................................     2,552,951
         16,500   Keyence Corp....................................................................     2,468,828
        250,000   Minebea Co., Ltd................................................................     2,493,766
    Y    21,000 K Minebea Co., Ltd. 0.80% due 03/31/03 (Conv.)....................................       247,880
        356,000   Mitsubishi Heavy Industries, Ltd................................................     1,748,928
        171,000   Nippon Thompson Co..............................................................     1,172,693
        270,000   OSG Corp........................................................................     1,571,072
        100,000   Tsudakoma.......................................................................       332,502
                                                                                                    ------------
                                                                                                      14,178,179
                                                                                                    ------------
                  MANUFACTURING
         61,000   Nichiha Corp....................................................................       689,609
                                                                                                    ------------
                  MERCHANDISING
         50,000   Shimamura Co., Ltd..............................................................     1,350,790
                                                                                                    ------------
                  METALS & MINING
        919,000   Nippon Steel Co.................................................................     1,894,530
         87,000   Sumitomo Sitix Corp.............................................................     1,533,167
         80,000   Sumitomo Special Metals.........................................................     1,536,160
                                                                                                    ------------
                                                                                                       4,963,857
                                                                                                    ------------
                  METALS NON-FERROUS
        234,000   Fujikura Ltd....................................................................     1,604,738
        582,000   Mitsui Mining & Smelting........................................................     2,568,928
                                                                                                    ------------
                                                                                                       4,173,666
                                                                                                    ------------
                  NATURAL GAS
        620,000   Tokyo Gas Co., Ltd..............................................................     1,422,444
                                                                                                    ------------
                  OFFICE EQUIPMENT
         13,000   Riso Kagaku.....................................................................       766,168
                                                                                                    ------------
                  PHARMACEUTICALS
        103,000   Eisai Co., Ltd..................................................................     1,618,204
         79,000   Takeda Chemical Industries......................................................     2,153,948
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       54
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997, CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
         49,000   Terumo Corp.....................................................................  $    806,484
                                                                                                    ------------
                                                                                                       4,578,636
                                                                                                    ------------
                  REAL ESTATE
         43,700   Chubu Sekiwa Real Estate, Ltd...................................................       345,096
        124,000   Mitsubishi Estate Co., Ltd......................................................     1,566,750
        223,000   Mitsui Fudosan Co...............................................................     2,521,031
                                                                                                    ------------
                                                                                                       4,432,877
                                                                                                    ------------
                  RETAIL
         45,300   Ministop Co., Ltd...............................................................     1,317,955
         23,200   Otsuka Kagu Ltd.................................................................     1,523,525
         29,000   Shimachu Co., Ltd...............................................................       617,124
        203,000   Tokyo Style Co., Ltd............................................................     2,143,059
                                                                                                    ------------
                                                                                                       5,601,663
                                                                                                    ------------
                  RETAIL - DEPARTMENT STORES
        183,000   Hankyu Department Stores........................................................     1,461,870
                                                                                                    ------------
                  RETAIL - GENERAL MERCHANDISE
         28,200   Circle K Japan Co., Ltd.........................................................     1,448,678
         37,000   Seven - Eleven Japan............................................................     2,768,080
                                                                                                    ------------
                                                                                                       4,216,758
                                                                                                    ------------
                  RETAIL - SPECIALTY
         60,000   Aderans Co., Ltd................................................................     1,615,960
                                                                                                    ------------
                  STEEL
      1,013,000   Sumitomo Metal Industries.......................................................     2,029,368
        100,000   Yamato Kogyo Co., Ltd...........................................................       789,692
                                                                                                    ------------
                                                                                                       2,819,060
                                                                                                    ------------
                  TELECOMMUNICATIONS
            392   DDI Corp........................................................................     1,309,925
        127,000   Nippon Comsys Corp..............................................................     1,541,313
            358   Nippon Telegraph & Telephone Corp...............................................     3,035,411
                                                                                                    ------------
                                                                                                       5,886,649
                                                                                                    ------------
                  TEXTILES
        768,000   Mitsubishi Rayon Co., Ltd.......................................................     2,464,239
        560,000   Nitto Boseki Co., Ltd...........................................................     1,526,850
                                                                                                    ------------
                                                                                                       3,991,089
                                                                                                    ------------
                  TRANSPORTATION
         19,000   Kanto Seino Transportation......................................................       401,164
        303,000   Tokyu Corp......................................................................     1,259,352
                                                                                                    ------------
                                                                                                       1,660,516
                                                                                                    ------------
                  UTILITIES - ELECTRIC
         69,300   Hokkaido Electric Power.........................................................     1,134,838
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  WHOLESALE & INTERNATIONAL TRADE
        359,000   Mitsui & Co.....................................................................  $  2,724,580
          7,000   Satori Electric Co., Ltd........................................................       124,522
                                                                                                    ------------
                                                                                                       2,849,102
                                                                                                    ------------
                  WHOLESALE DISTRIBUTOR
         31,200   Fujimi, Inc.*...................................................................     1,716,908
         49,500   Misumi Corp.....................................................................       806,484
                                                                                                    ------------
                                                                                                       2,523,392
                                                                                                    ------------
 
                  TOTAL JAPAN.....................................................................   164,199,086
                                                                                                    ------------
 
                  MALAYSIA (6.2%)
                  AUTOMOTIVE
        370,000   Edaran Otomobil Nasional Berhad.................................................     1,159,701
        455,000   Oriental Holdings Berhad........................................................       923,582
         99,000   UMW Holdings Berhad.............................................................       115,254
                                                                                                    ------------
                                                                                                       2,198,537
                                                                                                    ------------
                  BANKING
      1,100,000   Affin Holdings Berhad...........................................................       837,313
         34,000   Hong Leong Credit Berhad........................................................        47,296
        701,000   Malayan Banking Berhad..........................................................     2,699,373
      2,200,333   Public Bank Berhad..............................................................     1,372,745
                                                                                                    ------------
                                                                                                       4,956,727
                                                                                                    ------------
                  BUILDING & CONSTRUCTION
         60,000   Dialog Group Berhad.............................................................       240,000
        700,000   Gamuda Berhad...................................................................     1,065,672
        134,000   Gamuda Berhad (Warrants due 12/29/01)*..........................................        33,600
      1,500,000   Lingkaran Trans Kota Holdings Berhad*...........................................     1,432,836
          1,750   Sungei Way Holdings Berhad (Warrants due 06/29/99)*.............................           345
        956,968   United Engineers Malaysia Berhad................................................     2,256,731
        273,000   YTL Corp. Berhad................................................................       301,522
                                                                                                    ------------
                                                                                                       5,330,706
                                                                                                    ------------
                  CONGLOMERATES
        650,000   Sime Darby Berhad...............................................................       931,343
                                                                                                    ------------
                  ELECTRONICS
        475,000   Malaysian Pacific Industries Berhad.............................................     1,474,627
                                                                                                    ------------
                  INSURANCE
        605,000   Malaysian Assurance Alliance Berhad.............................................     1,083,582
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       55
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997, CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  LEISURE
        460,000   Berjaya Sports Toto Berhad......................................................  $  1,249,552
      2,332,800   Magnum Corporation Berhad.......................................................     1,817,495
      3,161,000   Metroplex Berhad................................................................     1,094,555
        500,000   Resorts World Berhad............................................................       888,060
                                                                                                    ------------
                                                                                                       5,049,662
                                                                                                    ------------
                  PLANTATION
      1,800,000   Highlands & Lowlands Berhad.....................................................     2,031,045
      2,695,000   IOI Corporated Berhad...........................................................     2,284,716
        900,000   Kuala Lumpur Kepong Berhad......................................................     2,149,254
                                                                                                    ------------
                                                                                                       6,465,015
                                                                                                    ------------
                  PUBLISHING
        702,000   Star Publications...............................................................     1,299,224
                                                                                                    ------------
                  REAL ESTATE
      1,200,000   Pelangi Berhad..................................................................       576,716
        900,000   Sime UEP Properties Berhad......................................................       832,836
                                                                                                    ------------
                                                                                                       1,409,552
                                                                                                    ------------
                  TELECOMMUNICATIONS
      1,850,000   Telekom Malaysia Berhad.........................................................     4,776,866
                                                                                                    ------------
                  TOBACCO
        600,000   RJ Reynolds Berhad..............................................................       922,388
                                                                                                    ------------
                  UTILITIES
        229,000   Prime Utilities Berhad..........................................................       676,746
        147,000   Prime Utilities Berhad (Warrants due 03/11/01)*.................................        71,964
        294,000   Prime Utilities Berhad 1.00% due 03/01/01 (Loan Stock)..........................        52,657
      2,650,000   Tenaga Nasional Berhad..........................................................     5,695,522
                                                                                                    ------------
                                                                                                       6,496,889
                                                                                                    ------------
                  WATER
      2,207,000   Puncak Niaga Holdings Berhad....................................................     2,595,696
                                                                                                    ------------
                  WIRE & CABLE
      1,400,000   Leader Universal Holdings Berhad................................................       852,537
                                                                                                    ------------
 
                  TOTAL MALAYSIA..................................................................    45,843,351
                                                                                                    ------------
                  PHILIPPINES (1.2%)
                  BUILDING MATERIALS
        341,400   Bacnotan Consolidated Industries................................................       229,882
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  CONGLOMERATES
      2,700,000   First Philippine Holdings Corp. (B Shares)......................................  $  2,282,235
                                                                                                    ------------
                  ENGINEERING & CONSTRUCTION
     14,334,000   DMCI Holdings, Inc.*............................................................     1,150,006
                                                                                                    ------------
                  LEISURE
     14,000,000   Belle Corp.*....................................................................     1,283,668
      2,800,000   Belle Corp. (Warrants due 10/06/00)*............................................           521
                                                                                                    ------------
                                                                                                       1,284,189
                                                                                                    ------------
                  TELECOMMUNICATIONS
         80,000   Philippine Long Distance Telephone Co. (ADR)....................................     1,940,000
                                                                                                    ------------
                  UTILITIES
        782,963   Manila Electric Co. (B Shares)..................................................     2,422,923
                                                                                                    ------------
 
                  TOTAL PHILIPPINES...............................................................     9,309,235
                                                                                                    ------------
 
                  SINGAPORE (8.1%)
                  BANKING
        583,250   Development Bank of Singapore, Ltd..............................................     5,450,588
      1,198,200   Overseas Chinese Banking Corp., Ltd.............................................     6,665,130
        600,000   Overseas Union Bank, Ltd........................................................     2,002,543
      1,028,000   United Overseas Bank, Ltd.......................................................     5,685,696
                                                                                                    ------------
                                                                                                      19,803,957
                                                                                                    ------------
                  CONGLOMERATES
        659,000   Jardine Strategic Holdings Ltd..................................................     2,108,800
        988,750   Keppel Corp., Ltd.*.............................................................     3,130,308
      1,430,000   Natsteel Ltd....................................................................     2,318,182
      1,016,000   Sembawang Corp., Ltd............................................................     3,126,154
                                                                                                    ------------
                                                                                                      10,683,444
                                                                                                    ------------
                  ELECTRONIC & ELECTRICAL EQUIPMENT
        260,000   Elec & Eltek International Co., Ltd.............................................     1,872,000
      1,308,000   Venture Manufacturing Ltd.......................................................     4,490,273
                                                                                                    ------------
                                                                                                       6,362,273
                                                                                                    ------------
                  ELECTRONICS
        300,000   GP Batteries International Ltd..................................................       877,305
                                                                                                    ------------
                  FINANCE
        240,000   Hong Leong Finance Ltd. (Warrants due 09/15/98)*................................        15,258
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       56
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997, CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  HEALTHCARE
        326,000   Parkway Holdings Ltd............................................................  $    824,844
                                                                                                    ------------
                  METALS - MISCELLANEOUS
      2,000,500   Amtek Engineering Ltd...........................................................     1,576,999
                                                                                                    ------------
                  PUBLISHING
        150,000   Singapore Press Holdings Ltd....................................................     2,069,294
                                                                                                    ------------
                  REAL ESTATE
        850,400   City Developments, Ltd..........................................................     3,568,112
      1,000,000   DBS Land Ltd....................................................................     1,703,751
        400,000   Singapore Land Ltd..............................................................     1,139,224
      1,700,000   United Overseas Land, Ltd.......................................................     1,469,803
        240,000   United Overseas Land, Ltd. (Warrants due 05/28/01)*.............................        51,875
                                                                                                    ------------
                                                                                                       7,932,765
                                                                                                    ------------
                  SHIPBUILDING
        700,000   Keppel Fels Ltd.................................................................     1,886,841
                                                                                                    ------------
                  TRANSPORTATION
        750,000   Singapore Airlines Ltd..........................................................     5,626,192
                                                                                                    ------------
                  UTILITIES - TELECOMMUNICATIONS
      1,600,000   Singapore Telecom...............................................................     2,542,912
                                                                                                    ------------
 
                  TOTAL SINGAPORE.................................................................    60,202,084
                                                                                                    ------------
 
                  SOUTH KOREA (2.4%)
                  AUTOMOTIVE
         57,000   Hyundai Motor Co., Ltd..........................................................       944,063
         36,000   Hyundai Motor Co., Ltd. (GDR)...................................................       126,000
                                                                                                    ------------
                                                                                                       1,070,063
                                                                                                    ------------
                  BANKING
          7,003   Shinhan Bank....................................................................        53,982
                                                                                                    ------------
                  COMMUNICATIONS - EQUIPMENT/MANUFACTURERS
         27,249   LG Information & Communication Ltd..............................................     1,566,818
                                                                                                    ------------
                  ELECTRONIC & ELECTRICAL EQUIPMENT
         40,000   Samsung Display Devices Co......................................................     1,229,167
         80,118   Samsung Electronics Co. (GDR)...................................................     3,162,992
                                                                                                    ------------
                                                                                                       4,392,159
                                                                                                    ------------
                  ENGINEERING & CONSTRUCTION
         39,990   Hyundai Engineering & Construction Co...........................................       595,684
                                                                                                    ------------
                  INSURANCE
         30,840   Oriental Fire & Marine Insurance................................................       359,800
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  INVESTMENT COMPANIES
        234,000   Atlantis Korean Smaller Companies*..............................................  $    760,500
         65,000   Clemente Korea Emerging Growth Fund*............................................       276,250
                                                                                                    ------------
                                                                                                       1,036,750
                                                                                                    ------------
                  SHIPBUILDING
        200,650   Daewoo Heavy Industries.........................................................     1,170,458
                                                                                                    ------------
                  STEEL & IRON
        110,685   Pohang Iron & Steel Co., Ltd....................................................     4,942,085
                                                                                                    ------------
                  UTILITIES
         90,640   Korea Electric Power Corp.......................................................     1,293,508
         46,838   Seoul City Gas Go Ltd...........................................................     1,122,160
                                                                                                    ------------
                                                                                                       2,415,668
                                                                                                    ------------
 
                  TOTAL SOUTH KOREA...............................................................    17,603,467
                                                                                                    ------------
 
                  TAIWAN (5.4%)
                  BANKS
        705,000   China Development Corp..........................................................     2,015,931
        846,400   China Trust Commercial Bank*....................................................     1,178,321
        372,960   International Commercial Bank of China..........................................       688,635
        614,900   United World Chinese Commercial Bank*...........................................     1,165,497
                                                                                                    ------------
                                                                                                       5,048,384
                                                                                                    ------------
                  BUILDING & CONSTRUCTION
        802,420   Cathay Construction Corp........................................................       865,355
                                                                                                    ------------
                  BUILDING MATERIALS
        307,491   Asia Cement Corp. (GDR).........................................................     3,305,528
                                                                                                    ------------
                  CHEMICALS
         56,000   Formosa Chemical & Fibre Corp...................................................        52,157
      1,013,700   Formosa Plastic Corp............................................................     1,629,871
$         2,925 K Nan Ya Plastics Corp. 1.75% due 07/19/01 (Conv.)................................     3,188,250
                                                                                                    ------------
                                                                                                       4,870,278
                                                                                                    ------------
                  COMPUTERS
         52,750   Acer Inc........................................................................        73,092
$         1,900 K Acer Peripherals Inc. 1.25% due 11/27/06 (Conv.)................................     2,090,000
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       57
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997, CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
$         2,100 K Compal Electronics 1.00% due 11/21/03 (Conv.)...................................  $  2,625,000
        780,000   Microtek International, Inc.*...................................................       917,647
$         1,000 K Yageo Corp. 1.25% due 07/24/03 (Conv.)..........................................     1,450,000
                                                                                                    ------------
                                                                                                       7,155,739
                                                                                                    ------------
                  ELECTRONICS - SEMICONDUCTORS/ COMPONENTS
        541,800   Siliconware Precision Industries Co.*...........................................     1,062,353
$           230 K Siliconware Precision Industries Co. 0.50% due 07/21/04 (Conv.).................       219,650
        811,500   Taiwan Semiconductor Manufacturing Co.*.........................................     2,585,662
$         1,800 K United Microelectronics Corp. - 144A** 0.25% due 05/16/04 (Conv.)...............     1,944,000
                                                                                                    ------------
                                                                                                       5,811,665
                                                                                                    ------------
                  INVESTMENT COMPANIES
            600   Taipei Fund*....................................................................     5,100,000
                                                                                                    ------------
                  LIFE INSURANCE
        509,350   Cathay Life Insurance Co., Ltd..................................................     2,297,068
                                                                                                    ------------
                  MANUFACTURING
      1,032,000   President Enterprises Corp.*....................................................     1,197,254
                                                                                                    ------------
                  STEEL & IRON
      2,548,000   China Steel Corp................................................................     1,973,451
         63,000   China Steel Corp. (GDR).........................................................       913,500
                                                                                                    ------------
                                                                                                       2,886,951
                                                                                                    ------------
                  TRANSPORTATION
$         2,000 K U-Ming Marine Transport 1.50% due 02/07/01 (Conv.)..............................     1,625,000
                                                                                                    ------------
 
                  TOTAL TAIWAN....................................................................    40,163,222
                                                                                                    ------------
                  THAILAND (2.1%)
                  BANKING
        320,000   Bangkok Bank PCL................................................................     1,092,683
                                                                                                    ------------
                  ENERGY
        124,900   Ban Pu Coal Co., Ltd............................................................       859,068
        258,500   Lanna Lignite Public Co., Ltd...................................................       895,293
                                                                                                    ------------
                                                                                                       1,754,361
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  INVESTMENT COMPANIES
      7,896,100   Ruang Khao 2 Fund (Units)++.....................................................  $  1,117,009
                                                                                                    ------------
                  OIL RELATED
        570,000   PTT Exploration & Production PCL................................................     5,700,000
                                                                                                    ------------
                  TELECOMMUNICATIONS
        270,000   Advanced Info Service Public Co., Ltd...........................................     1,422,439
                                                                                                    ------------
                  TELEVISION
        250,000   BEC World Public Co., Ltd.......................................................     1,256,097
                                                                                                    ------------
                  TRANSPORTATION
      3,300,000   Bangkok Expressway Public Co., Ltd.*............................................     2,173,171
        312,000   Regional Container Line Co., Ltd................................................       502,244
                                                                                                    ------------
                                                                                                       2,675,415
                                                                                                    ------------
                  UTILITIES - ELECTRIC
        800,000   Cogeneration Public Co.*........................................................       790,244
                                                                                                    ------------
 
                  TOTAL THAILAND..................................................................    15,808,248
                                                                                                    ------------
 
                  TOTAL COMMON STOCKS, WARRANTS, RIGHTS AND BONDS
                  (IDENTIFIED COST $911,863,478)..................................................   709,635,228
                                                                                                    ------------
</TABLE>
 
<TABLE>
<CAPTION>
 CURRENCY
 AMOUNT IN
 THOUSANDS
- -----------
<C>          <S>                                                                                    <C>
             PURCHASED PUT OPTIONS ON FOREIGN CURRENCY (0.7%)
HKD 257,760  April 24, 1998/HKD 8.055.............................................................       947,200
HKD 290,520  April 24, 1998/HKD 8.07..............................................................     1,058,400
Y  6,613,322 February 10, 1998/YEN 115.82.........................................................     2,192,640
Y  5,914,300 February 10, 1998/YEN 120.70.........................................................       877,100
                                                                                                    ------------
 
             TOTAL PURCHASED PUT OPTIONS ON FOREIGN CURRENCY
             (IDENTIFIED COST $5,029,510).........................................................     5,075,340
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       58
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS OCTOBER 31, 1997, CONTINUED
 
<TABLE>
<CAPTION>
 PRINCIPAL
 AMOUNT IN
 THOUSANDS                                                                                             VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>          <S>                                                                                    <C>
             SHORT-TERM INVESTMENTS (a) (1.2%)
             COMMERCIAL PAPER
             AUTOMOTIVE - FINANCE
$       350  Ford Motor Credit Co. 5.50% due 11/26/97.............................................  $    348,663
                                                                                                    ------------
             U.S. GOVERNMENT AGENCY
      9,000  Federal Home Loan Mortgage Corp. 5.65% due 11/03/97..................................     8,997,175
                                                                                                    ------------
 
             TOTAL SHORT-TERM INVESTMENTS
             (AMORTIZED COST $9,345,838)..........................................................     9,345,838
                                                                                                    ------------
 
             TOTAL INVESTMENTS
             (IDENTIFIED COST $926,238,826).......................................................   724,056,406
                                                                                                    ------------
</TABLE>
 
<TABLE>
<CAPTION>
 CURRENCY
 AMOUNT IN
 THOUSANDS
- -----------
<C>          <S>                                                                                    <C>
             WRITTEN OPTIONS ON FOREIGN CURRENCY (0.4%)
HKD 290,520  April 24, 1998/HKD 8.07..............................................................    (1,420,200)
HKD 257,760  April 24, 1998/HKD 8.05..............................................................    (1,228,800)
                                                                                                    ------------
 
             TOTAL WRITTEN OPTIONS ON FOREIGN CURRENCY
             (PREMIUM RECEIVED $2,594,840)........................................................    (2,649,000)
                                                                                                    ------------
</TABLE>
 
<TABLE>
<S>                                                                                         <C>     <C>
TOTAL INVESTMENTS
(IDENTIFIED COST $926,238,826) (B)........................................................   97.1 %   724,056,406
TOTAL WRITTEN OPTIONS OUTSTANDING.........................................................   (0.4)     (2,649,000)
 
CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES............................................    3.3      24,284,164
                                                                                            ------  -------------
 
NET ASSETS................................................................................  100.0 % $ 745,691,570
                                                                                            ------  -------------
                                                                                            ------  -------------
 
</TABLE>
 
- ---------------------
 
ADR  American Depository Receipt.
GDR  Global Depository Receipt.
 K   In thousands.
 *   Non-income producing security.
**   Resale is restricted to qualified institutional investors.
***  Partially paid shares. Resale is restricted to qualified institutional
     investors.
++   Consists of one or more class of securities traded together as a unit;
     stocks with attached warrants.
(a)  Securities were purchased on a discount basis. The interest rates shown
     have been adjusted to reflect a money market equivalent yield.
(b)  The aggregate cost for federal income tax purposes approximates identified
     cost. The aggregate gross unrealized appreciation is $47,368,650 and the
     aggregate gross unrealized depreciation is $249,551,070, resulting in net
     unrealized depreciation of $202,182,420.
 
FORWARD FOREIGN CURRENCY CONTRACTS OPEN AT OCTOBER 31, 1997
 
<TABLE>
<CAPTION>
                                                            UNREALIZED
  CONTRACTS               IN              DELIVERY         APPRECIATION
 TO DELIVER          EXCHANGE FOR           DATE          (DEPRECIATION)
  --------------------------------------------------------------------
<S>                  <C>                  <C>             <C>
$    3,870,634       HKD29,929,677        11/03/97           $   2,003
MYR 4,283,151        $   1,254,768        11/03/97             (23,784)
JPY 29,990,882       $     249,238        11/04/97                 (62)
SGD 2,883,450        $   1,831,227        11/04/97              (1,863)
JPY 20,597,489       $     171,246        11/05/97                  28
MYR 6,850,446        $   1,984,486        11/05/97             (60,423)
 MYR  977,094        $     288,654        11/05/97              (3,016)
SGD 4,295,384        $   2,715,161        11/05/97             (15,535)
                                                          ---------------
            Net unrealized depreciation...........           $(102,652)
                                                          ---------------
                                                          ---------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       59
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
SUMMARY OF INVESTMENTS OCTOBER 31, 1997
<TABLE>
<CAPTION>
                                                                                                  PERCENT OF
INDUSTRY                                                                               VALUE      NET ASSETS
- ------------------------------------------------------------------------------------------------------------
<S>                                                                                 <C>           <C>
Agriculture.......................................................................  $     70,864       0.0  %
Aluminum..........................................................................     2,502,500       0.3
Apparel...........................................................................     1,516,625       0.2
Auto Parts........................................................................     2,681,564       0.3
Auto Trucks & Parts...............................................................     1,222,527       0.2
Automotive........................................................................    11,090,592       1.5
Automotive - Finance..............................................................       348,663       0.1
Banking...........................................................................    78,671,607      10.6
Banks.............................................................................     8,829,134       1.2
Building & Construction...........................................................    10,931,294       1.5
Building Materials................................................................     8,708,755       1.2
Business Services.................................................................     4,711,804       0.6
Chemicals.........................................................................    12,805,806       1.7
Commercial Services...............................................................     1,221,945       0.1
Communications - Equipment/Manufacturers..........................................     1,566,818       0.2
Computer Software & Services......................................................     8,655,694       1.2
Computers.........................................................................     7,976,188       1.1
Conglomerates.....................................................................    78,270,359      10.5
Construction Equipment............................................................     1,326,816       0.2
Construction Plant & Equipment....................................................     3,149,441       0.4
Currency Options..................................................................     5,075,340       0.7
Electric..........................................................................     1,529,510       0.2
Electronic & Electrical Equipment.................................................    38,508,358       5.2
Electronic Components.............................................................     2,651,704       0.3
Electronics.......................................................................     5,220,593       0.7
Electronics - Semiconductors/Components...........................................     7,853,228       1.0
Electronics - Specialty...........................................................     1,039,900       0.1
Energy............................................................................     5,963,265       0.8
Engineering & Construction........................................................     6,757,037       0.9
Entertainment.....................................................................     2,398,180       0.3
Finance...........................................................................        15,257       0.0
Financial Services................................................................     5,384,289       0.7
Food, Beverage, Tobacco & Household Products......................................    14,710,584       2.0
Forest Products, Paper & Packing..................................................       419,984       0.1
Hand Tools........................................................................       514,713       0.1
Healthcare........................................................................       824,844       0.1
Hotels/Motels.....................................................................     1,727,373       0.2
Industrials.......................................................................       482,544       0.1
Insurance.........................................................................     3,927,173       0.5
Investment Companies..............................................................    10,135,509       1.3
Leisure...........................................................................     6,333,851       0.9
Life Insurance....................................................................     3,201,901       0.4
Machinery.........................................................................    14,178,180       1.9
Manufacturing.....................................................................     1,886,863       0.3
 
<CAPTION>
                                                                                                  PERCENT OF
INDUSTRY                                                                               VALUE      NET ASSETS
- ------------------------------------------------------------------------------------------------------------
<S>                                                                                 <C>           <C>
Merchandising.....................................................................  $  1,350,790       0.2  %
Metals............................................................................     4,231,536       0.6
Metals & Mining...................................................................     9,411,068       1.2
Metals - Miscellaneous............................................................     1,576,999       0.2
Metals - Non-Ferrous..............................................................     4,173,666       0.6
Multi-Industry....................................................................     3,725,108       0.5
Natural Gas.......................................................................     1,422,444       0.2
Office Equipment..................................................................       766,168       0.1
Oil & Gas Exploration.............................................................     2,100,000       0.3
Oil Related.......................................................................     5,700,000       0.8
Pharmaceuticals...................................................................     6,422,212       0.9
Plantation........................................................................    10,286,003       1.4
Property..........................................................................       776,000       0.1
Publishing........................................................................     5,969,282       0.8
Real Estate.......................................................................   104,118,189      14.0
Retail............................................................................     5,601,663       0.8
Retail - Department Stores........................................................     6,079,468       0.8
Retail - General Merchandise......................................................     4,216,758       0.6
Retail - Specialty................................................................     1,615,960       0.2
Retail - Specialty Apparel........................................................       887,598       0.1
Retail Stores.....................................................................     4,794,156       0.6
Shipbuilding......................................................................     3,057,299       0.4
Steel.............................................................................     2,819,061       0.4
Steel & Iron......................................................................     7,829,036       1.0
Telecommunications................................................................    42,653,658       5.7
Television........................................................................     1,256,098       0.2
Textiles..........................................................................     7,687,339       1.0
Tobacco...........................................................................       922,388       0.1
Transportation....................................................................    16,815,683       2.3
U.S. Government Agency............................................................     8,997,175       1.2
Utilities.........................................................................    43,173,004       5.8
Utilities - Electric..............................................................     5,257,782       0.7
Utilities - Telecommunications....................................................     2,542,912       0.3
Water.............................................................................     2,595,696       0.3
Wholesale & International Trade...................................................     2,849,102       0.4
Wholesale Distributor.............................................................     2,523,392       0.3
Wire & Cable......................................................................       852,537       0.1
                                                                                    ------------       ---
                                                                                    $724,056,406      97.1  %
                                                                                    ------------       ---
                                                                                    ------------       ---
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                  PERCENT OF
TYPE OF INVESTMENT                                                                     VALUE      NET ASSETS
- ------------------------------------------------------------------------------------------------------------
<S>                                                                                 <C>           <C>
Common Stocks.....................................................................  $690,530,946      92.7  %
Convertible Bonds.................................................................    18,784,469       2.5
Foreign Currency Put Options......................................................     5,075,340       0.7
Short-Term Investments............................................................     9,345,838       1.2
Warrants & Rights.................................................................       319,813       0.0
                                                                                    ------------       ---
                                                                                    $724,056,406      97.1  %
                                                                                    ------------       ---
                                                                                    ------------       ---
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       60
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL STATEMENTS
 
STATEMENT OF ASSETS AND LIABILITIES
OCTOBER 31, 1997
 
<TABLE>
<S>                                                                                           <C>
ASSETS:
Investments in securities, at value
  (identified cost $926,238,826)............................................................  $  724,056,406
Cash (including $7,592,446 in foreign currency).............................................      11,905,736
Receivable for:
    Investments sold........................................................................      17,570,446
    Capital stock sold......................................................................       2,506,157
    Dividends...............................................................................       1,016,602
    Interest................................................................................         129,180
Prepaid expenses and other assets...........................................................          86,201
                                                                                              --------------
     TOTAL ASSETS...........................................................................     757,270,728
                                                                                              --------------
LIABILITIES:
Written call options outstanding, at value
  (premiums received $2,594,840)............................................................       2,649,000
Payable for:
    Investments purchased...................................................................       4,400,209
    Capital stock repurchased...............................................................       1,837,702
    Plan of distribution fee................................................................         799,956
    Investment management fee...............................................................         799,585
Accrued expenses and other payables.........................................................       1,092,706
                                                                                              --------------
     TOTAL LIABILITIES......................................................................      11,579,158
                                                                                              --------------
     NET ASSETS.............................................................................  $  745,691,570
                                                                                              --------------
                                                                                              --------------
COMPOSITION OF NET ASSETS:
Paid-in-capital.............................................................................  $1,079,062,994
Net unrealized depreciation.................................................................    (202,672,283)
Dividends in excess of net investment income................................................      (3,880,806)
Accumulated net realized loss...............................................................    (126,818,335)
                                                                                              --------------
     NET ASSETS.............................................................................  $  745,691,570
                                                                                              --------------
                                                                                              --------------
CLASS A SHARES:
Net Assets..................................................................................        $622,202
Shares Outstanding (500,000,000 AUTHORIZED, $.01 PAR VALUE).................................          48,394
     NET ASSET VALUE PER SHARE..............................................................          $12.86
                                                                                              --------------
                                                                                              --------------
    Maximum Offering Price Per Share
    (NET ASSET VALUE PLUS 5.54% OF NET ASSET VALUE).........................................          $13.57
                                                                                              --------------
                                                                                              --------------
CLASS B SHARES:
Net Assets..................................................................................    $744,132,621
Shares Outstanding (500,000,000 AUTHORIZED, $.01 PAR VALUE).................................      57,991,437
     NET ASSET VALUE PER SHARE..............................................................          $12.83
                                                                                              --------------
                                                                                              --------------
CLASS C SHARES:
Net Assets..................................................................................        $819,243
Shares Outstanding (500,000,000 AUTHORIZED, $.01 PAR VALUE).................................          63,853
     NET ASSET VALUE PER SHARE..............................................................          $12.83
                                                                                              --------------
                                                                                              --------------
CLASS D SHARES:
Net Assets..................................................................................        $117,504
Shares Outstanding (500,000,000 AUTHORIZED, $.01 PAR VALUE).................................           9,137
     NET ASSET VALUE PER SHARE..............................................................          $12.86
                                                                                              --------------
                                                                                              --------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       61
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF OPERATIONS
FOR THE YEAR ENDED OCTOBER 31, 1997*
 
<TABLE>
<S>                                                                                            <C>
NET INVESTMENT INCOME:
 
INCOME
Dividends (net of $2,126,874 foreign withholding tax)........................................  $  33,599,748
Interest.....................................................................................      1,282,514
                                                                                               -------------
 
     TOTAL INCOME............................................................................     34,882,262
                                                                                               -------------
 
EXPENSES
Plan of distribution fee (Class A shares)....................................................            278
Plan of distribution fee (Class B shares)....................................................     14,155,635
Plan of distribution fee (Class C shares)....................................................          1,074
Investment management fee....................................................................     13,946,846
Custodian fees...............................................................................      3,270,864
Transfer agent fees and expenses.............................................................      2,507,387
Professional fees............................................................................        245,395
Shareholder reports and notices..............................................................        223,412
Registration fees............................................................................         92,743
Directors' fees and expenses.................................................................          6,994
Other........................................................................................         44,740
                                                                                               -------------
 
     TOTAL EXPENSES..........................................................................     34,495,368
                                                                                               -------------
 
     NET INVESTMENT INCOME...................................................................        386,894
                                                                                               -------------
 
NET REALIZED AND UNREALIZED GAIN (LOSS):
Net realized gain (loss) on:
    Investments..............................................................................    (79,085,850)
    Options written..........................................................................        718,720
    Foreign exchange transactions............................................................     (2,636,120)
                                                                                               -------------
 
     NET LOSS................................................................................    (81,003,250)
                                                                                               -------------
Net change in unrealized appreciation/depreciation on:
    Investments..............................................................................   (280,418,627)
    Translation of forward foreign currency contracts, other assets and liabilities
      denominated in foreign currencies......................................................       (406,090)
                                                                                               -------------
 
     NET DEPRECIATION........................................................................   (280,824,717)
                                                                                               -------------
 
     NET LOSS................................................................................   (361,827,967)
                                                                                               -------------
 
NET DECREASE.................................................................................  $(361,441,073)
                                                                                               -------------
                                                                                               -------------
</TABLE>
 
- ---------------------
 
 *   Class A, Class C and Class D shares were issued July 28, 1997.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       62
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF CHANGES IN NET ASSETS
 
<TABLE>
<CAPTION>
                                                                           FOR THE YEAR       FOR THE YEAR
                                                                               ENDED             ENDED
                                                                         OCTOBER 31, 1997*  OCTOBER 31, 1996
- ------------------------------------------------------------------------------------------------------------
<S>                                                                      <C>                <C>
 
INCREASE (DECREASE) IN NET ASSETS:
 
OPERATIONS:
Net investment income..................................................  $         386,894  $      2,914,418
Net realized gain (loss)...............................................        (81,003,250)        2,758,084
Net change in unrealized appreciation..................................       (280,824,717)       28,304,565
                                                                         -----------------  ----------------
 
     NET INCREASE (DECREASE)...........................................       (361,441,073)       33,977,067
 
Dividends to shareholders from net investment income - Class B
  shares...............................................................        (25,258,274)      (33,521,569)
Net increase (decrease) from capital stock transactions................       (492,076,963)      182,463,571
                                                                         -----------------  ----------------
 
     NET INCREASE (DECREASE)...........................................       (878,776,310)      182,919,069
 
NET ASSETS:
Beginning of period....................................................      1,624,467,880     1,441,548,811
                                                                         -----------------  ----------------
 
     END OF PERIOD
    (INCLUDING DIVIDENDS IN EXCESS OF NET INVESTMENT INCOME OF
    $3,880,806 AND UNDISTRIBUTED NET INVESTMENT INCOME OF $1,241,493,
    RESPECTIVELY)......................................................  $     745,691,570  $  1,624,467,880
                                                                         -----------------  ----------------
                                                                         -----------------  ----------------
</TABLE>
 
- ---------------------
 
 *   Class A, Class C and Class D shares were issued July 28, 1997.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       63
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1997
 
1. ORGANIZATION AND ACCOUNTING POLICIES
 
Dean Witter Pacific Growth Fund Inc. (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
maximize capital appreciation of its investments. The Fund was incorporated in
Maryland on June 13, 1990 and commenced operations on November 30, 1990. On July
28, 1997, the Fund commenced offering three additional classes of shares, with
the then current shares designated as Class B 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 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 procedures
adopted by the Directors); (2) listed options 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 are valued at the mean between
their latest bid and asked price; (3) 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; (4) when market
quotations are not readily available, including circumstances under which it is
determined by Dean Witter InterCapital Inc. (the "Investment Manager") or Morgan
Grenfell Investment Services Limited (the "Sub-Adviser") that sale and 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 Directors (valuation of
debt securities for which market quotations are not readily available may be
based upon current
 
                                       64
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1997, CONTINUED
 
market prices of securities which are comparable in coupon, rating and maturity
or an appropriate matrix utilizing similar factors); and (5) short-term debt
securities having a maturity date of more than sixty days at the 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.
Dividend income and other distributions are recorded on the ex-dividend date
except for certain dividends from foreign securities which are recorded as soon
as the Fund is informed after the ex-dividend date. Discounts are accreted over
the life of the respective securities. 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. OPTION ACCOUNTING PRINCIPLES -- When the Fund writes a call option, an amount
equal to the premium received is included in the Fund's Statement of Assets and
Liabilities as a liability which is subsequently marked-to-market to reflect the
current market value of the option written. If a written option either expires
or the Fund enters into a closing purchase transaction, the Fund realizes a gain
or loss without regard to any unrealized gain or loss on the underlying security
or currency and the liability related to such option is extinguished. If a
written call option is exercised, the Fund realizes a gain or loss from the sale
of the underlying security or currency and the proceeds from such sale are
increased by the premium originally received.
 
When the Fund purchases a call or put option, the premium paid is recorded as an
investment which is subsequently marked-to-market to reflect the current market
value. If a purchased option expires, the Fund will realize a loss to the extent
of the premium paid. If the Fund enters into a closing sale transaction, a gain
or loss is realized for the difference between the proceeds from the sale and
the cost of the option. If a put option is exercised, the cost of the security
or currency sold upon exercise will be increased by the premium originally paid.
If a call option is exercised, the cost of the security purchased upon exercise
will be increased by the premium originally paid.
 
                                       65
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1997, CONTINUED
 
E. FOREIGN CURRENCY TRANSLATION -- The books and records of the Fund are
maintained in U.S. dollars as follows: (1) the foreign currency market value of
investment securities, other assets and liabilities and forward foreign currency
contracts are translated at the exchange rates prevailing at the end of the
period; and (2) purchases, sales, income and expenses are translated at the
exchange rates prevailing on the respective dates of such transactions. The
resultant exchange gains and losses are included in the Statement of Operations
as realized and unrealized gain/loss on foreign exchange transactions. Pursuant
to U.S. Federal income tax regulations, certain foreign exchange gains/losses
included in realized and unrealized gain/loss are included in or are a reduction
of ordinary income for federal income tax purposes. The Fund does not isolate
that portion of the results of operations arising as a result of changes in the
foreign exchange rates from the changes in the market prices of the securities.
 
F. FORWARD FOREIGN CURRENCY CONTRACTS -- The Fund may enter into forward foreign
currency contracts which are valued daily at the appropriate exchange rates. The
resultant unrealized exchange gains and losses are included in the Statement of
Operations as unrealized gain/loss on foreign exchange transactions. The Fund
records realized gains or losses on delivery of the currency or at the time the
forward contract is extinguished (compensated) by entering into a closing
transaction prior to delivery.
 
G. 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.
 
H. 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 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.
 
                                       66
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1997, CONTINUED
 
2. INVESTMENT MANAGEMENT AND SUB-ADVISORY AGREEMENTS
 
Pursuant to an Investment Management Agreement, the Fund pays the Investment
Manager a management fee, accrued daily and payable monthly, by applying the
following annual rates to the net assets of the Fund determined as of the close
of each business day: 1.0% to the portion of daily net assets not exceeding $1
billion and 0.95% to the portion of daily net assets in excess of $1 billion.
Effective May 1, 1997, the Agreement was amended to reduce the annual rate to
0.90% to the portion of daily net assets in excess of $2 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.
 
Under a Sub-Advisory Agreement between the Sub-Adviser and the Investment
Manager, the Sub-Adviser provides the Fund with investment advice and portfolio
management relating to the Fund's investments in securities, subject to the
overall supervision of the Investment Manager. As compensation for its services
provided pursuant to the Sub-Advisory Agreement, the Investment Manager pays the
Sub-Adviser monthly compensation equal to 40% of its monthly compensation.
 
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 and the expenses borne by it and others in the distribution of the
shares of these Classes, including
 
                                       67
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1997, CONTINUED
 
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 $41,117,586 at October 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 October 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 October 31, 1997,
it received contingent deferred sales charges from certain redemptions of the
Fund's Class B shares and Class C shares of $4,821,220, and $650, respectively
and approximately $11,000 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.
 
                                       68
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS OCTOBER 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 October 31, 1997 aggregated
$576,215,868 and $1,113,880,798, respectively.
 
For the year ended October 31, 1997, the Fund incurred $177,930 in brokerage
commissions with affiliates of the Sub-Adviser for portfolio transactions
executed on behalf of the Fund.
 
For the period May 31, 1997 through October 31, 1997, the Fund incurred
brokerage commissions of $119,132 with Morgan Stanley & Co., Inc., an affiliate
of the Investment Manager since May 31, 1997, for portfolio transactions
executed on behalf of the Fund. At October 31, 1997, the Fund's receivable for
investments sold included unsettled trades with Morgan Stanley & Co., Inc., of
$385,903.
 
Dean Witter Trust FSB, an affiliate of the Investment Manager and Distributor,
is the Fund's transfer agent. At October 31, 1997, the Fund had transfer agent
fees and expenses payable of approximately $56,508.
 
The Fund has an unfunded noncontributory defined benefit pension plan covering
all independent Directors of the Fund who will have served as independent
Directors 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 October 31, 1997 included
in Directors' fees and expenses in the Statement of Operations, amounted to
$4,186. At October 31, 1997, the Fund had an accrued pension liability of
$39,918 which is included in accrued expenses in the Statement of Assets and
Liabilities.
 
                                       69
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1997, CONTINUED
 
5. CAPITAL STOCK
 
Transactions in capital stock were as follows:
 
<TABLE>
<CAPTION>
                                                                           FOR THE YEAR                  FOR THE YEAR
                                                                              ENDED                         ENDED
                                                                         OCTOBER 31, 1997              OCTOBER 31, 1996
                                                                   ----------------------------   --------------------------
                                                                     SHARES          AMOUNT         SHARES         AMOUNT
                                                                   -----------   --------------   -----------   ------------
<S>                                                                <C>           <C>              <C>           <C>
CLASS A SHARES*
Sold.............................................................       63,214   $      998,769       --             --
Redeemed.........................................................      (14,820)        (235,608)      --             --
                                                                   -----------   --------------   -----------   ------------
Net increase - Class A                                                  48,394          763,161       --             --
                                                                   -----------   --------------   -----------   ------------
CLASS B SHARES
Sold.............................................................   28,630,560      521,923,627    38,199,038   $744,616,070
Reinvestment of dividends........................................    1,228,090       23,456,516     1,685,192     31,243,453
Redeemed.........................................................  (57,878,288)  (1,039,376,437)  (30,677,011)  (593,395,952)
                                                                   -----------   --------------   -----------   ------------
Net increase (decrease) - Class B................................  (28,019,638)    (493,996,294)    9,207,219    182,463,571
                                                                   -----------   --------------   -----------   ------------
CLASS C SHARES*
Sold.............................................................       76,313        1,169,997       --             --
Redeemed.........................................................      (12,460)        (171,011)      --             --
                                                                   -----------   --------------   -----------   ------------
Net increase - Class C...........................................       63,853          998,986       --             --
                                                                   -----------   --------------   -----------   ------------
CLASS D SHARES*
Sold.............................................................        9,137          157,184       --             --
                                                                   -----------   --------------   -----------   ------------
Net increase (decrease) in Fund..................................  (27,898,254)  $ (492,076,963)    9,207,219   $182,463,571
                                                                   -----------   --------------   -----------   ------------
                                                                   -----------   --------------   -----------   ------------
</TABLE>
 
<TABLE>
<C>  <S>
<FN>
 
- ---------------------
 *   For the period July 28, 1997 (issue date) through October 31, 1997.
</TABLE>
 
6. FEDERAL INCOME TAX STATUS
 
At October 31, 1997, the Fund had an approximate net capital loss carryover of
$116,663,000, which may be used to offset future capital gains to the extent
provided by regulations, which is available through October 31 of the following
years:
 
<TABLE>
<CAPTION>
               AMOUNTS IN THOUSANDS
          ------------------------------
            2003       2004       2005
          --------   --------   --------
          <S>        <C>        <C>
          $  3,193   $ 15,875   $ 97,595
          --------   --------   --------
          --------   --------   --------
</TABLE>
 
As of October 31, 1997, the Fund had temporary book/tax differences primarily
attributable to the mark-to-market of passive foreign investment companies
("PFICs") and capital loss deferrals on wash sales and permanent book/tax
differences primarily attributable to foreign currency losses and tax
adjustments on PFICs sold by the Fund. To reflect reclassifications arising from
the permanent differences, accumulated net realized loss was charged
$19,755,676, paid-in-capital was credited $6,595, and dividends in excess of net
investment income was credited $19,749,081.
 
                                       70
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS OCTOBER 31, 1997, CONTINUED
 
7. PURPOSES OF AND RISKS RELATING TO CERTAIN FINANCIAL INSTRUMENTS
 
The Fund may enter into forward foreign currency contracts ("forward contracts")
to facilitate settlement of foreign currency denominated portfolio transactions
or to manage foreign currency exposure associated with foreign currency
denominated securities.
 
Forward contracts involve elements of market risk in excess of the amounts
reflected in the Statement of Assets and Liabilities. The Fund bears the risk of
an unfavorable change in the foreign exchange rates underlying the forward
contracts. Risks may also arise upon entering into these contracts from the
potential inability of the counterparties to meet the terms of their contracts.
 
At October 31, 1997, there were outstanding forward contracts used to facilitate
settlement of foreign currency denominated portfolio transactions.
 
At October 31, 1997, the Fund's cash balance consisted principally of interest
bearing deposits with Chase Manhattan Bank N.A., the Fund's custodian.
 
8. COMMITMENTS
 
As of October 31, 1997, the Fund has purchased shares which are subject to
installment payments. At October 31, 1997, the Fund had outstanding commitments
as follows:
 
<TABLE>
<CAPTION>
                                       TOTAL OUTSTANDING
              ISSUER                      COMMITMENT                  INSTALLMENT PAYMENT TERMS
- ----------------------------------  -----------------------  --------------------------------------------
<S>                                 <C>                      <C>
     Investment Co. of China               $158,000                     Balance payable in one
                                                                    installment upon notification
                                                                            by the issuer.
</TABLE>
 
                                       71
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL HIGHLIGHTS
 
Selected ratios and per share data for a share of capital stock outstanding
throughout each period:
 
<TABLE>
<CAPTION>
                                                                                                                   FOR THE
                                                                                                                    PERIOD
                                                                                                                   NOVEMBER
                                                                                                                  30, 1990*
                                                  FOR THE YEAR ENDED OCTOBER 31                                    THROUGH
                      --------------------------------------------------------------------------------------       OCTOBER
                      1997***++         1996           1995            1994           1993          1992**         31, 1991
- ----------------------------------------------------------------------------------------------------------------------------
 
<S>                   <C>             <C>            <C>            <C>             <C>            <C>            <C>
CLASS B SHARES
 
PER SHARE
OPERATING
PERFORMANCE:
 
Net asset value,
 beginning of
 period..........     $    18.89      $   18.77      $   21.60      $    19.80      $   12.69      $   11.72      $   10.00
                      ----------      ---------      ---------      ----------      ---------      ---------      ----------
 
Net investment
 income (loss)...           0.01           0.05           0.08           (0.10)         (0.04)         (0.01)          0.06
 
Net realized and
 unrealized gain
 (loss)..........          (5.77)          0.50          (1.94)           2.22           7.15           1.14           1.69
                      ----------      ---------      ---------      ----------      ---------      ---------      ----------
 
Total from
 investment
 operations......          (5.76)          0.55          (1.86)           2.12           7.11           1.13           1.75
                      ----------      ---------      ---------      ----------      ---------      ---------      ----------
 
Less dividends
 and
 distributions
 from:
   Net investment
   income........          (0.30)         (0.43)        --              --             --              (0.01)         (0.03)
   Net realized
   gain..........         --             --              (0.97)          (0.32)        --              (0.15)        --
                      ----------      ---------      ---------      ----------      ---------      ---------      ----------
 
Total dividends
 and
 distributions...          (0.30)         (0.43)         (0.97)          (0.32)        --              (0.16)         (0.03)
                      ----------      ---------      ---------      ----------      ---------      ---------      ----------
 
Net asset value,
 end of period...     $    12.83      $   18.89      $   18.77      $    21.60      $   19.80      $   12.69      $   11.72
                      ----------      ---------      ---------      ----------      ---------      ---------      ----------
                      ----------      ---------      ---------      ----------      ---------      ---------      ----------
 
TOTAL INVESTMENT
RETURN+..........         (31.01)%         3.00%         (8.65)%         10.69%         56.13%          9.86%         17.54%(1)
 
RATIOS TO AVERAGE
NET ASSETS:
 
Expenses.........           2.44%          2.39%          2.45%           2.41%          2.38%          2.77%          2.43%(2)(3)
 
Net investment
 income (loss)...           0.03%          0.18%          0.35%          (0.70)%        (0.46)%        (0.30)%         0.61%(2)(3)
 
SUPPLEMENTAL DATA:
 
Net assets, end
 of period, in
 millions........           $744         $1,624         $1,442          $1,571           $694           $177            $86
 
Portfolio
 turnover rate...             42%            49%            50%             35%            30%            73%            70%(1)
 
Average
 commission rate
 paid............         $0.0075        $0.0095            --              --             --             --             --
 
- ---------------------
 *   Commencement of operations.
**   Net investment loss was computed based upon the monthly average shares
     outstanding.
***  Prior to July 28, 1997, the Fund issued one class of shares. All shares of
     the Fund held prior to that date have been designated Class B 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.
(3)  If the Fund had borne all expenses that were assumed or waived by the
     Investment Manager, the above annualized expense and net investment income
     ratios would have been 2.83% and 0.22%, respectively.
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
 
                                       72
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL HIGHLIGHTS, CONTINUED
 
<TABLE>
<CAPTION>
                                                                         FOR THE PERIOD
                                                                         JULY 28, 1997*
                                                                            THROUGH
                                                                          OCTOBER 31,
                                                                             1997++
- ----------------------------------------------------------------------------------------
<S>                                                                     <C>
CLASS A SHARES
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 19.39
Net realized and unrealized loss......................................        (6.53)
                                                                             ------
Net asset value, end of period........................................      $ 12.86
                                                                             ------
                                                                             ------
TOTAL INVESTMENT RETURN+..............................................       (33.68)%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         1.92% (2)
Net investment loss...................................................        (0.03)%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................         $622
Portfolio turnover rate...............................................           42%
Average commission rate paid..........................................      $0.0075
</TABLE>
 
<TABLE>
<S>                                                                     <C>
CLASS C SHARES
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 19.39
                                                                             ------
Net investment loss...................................................        (0.04)
Net realized and unrealized loss......................................        (6.52)
                                                                             ------
Total from investment operations......................................        (6.56)
                                                                             ------
Net asset value, end of period........................................      $ 12.83
                                                                             ------
                                                                             ------
TOTAL INVESTMENT RETURN+..............................................       (33.83)%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         2.62% (2)
Net investment loss...................................................        (0.77)%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................         $819
Portfolio turnover rate...............................................           42%
Average commission rate paid..........................................      $0.0075
 
- ---------------------
 *   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.
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
 
                                       73
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL HIGHLIGHTS, CONTINUED
 
<TABLE>
<CAPTION>
                                                                         FOR THE PERIOD
                                                                         JULY 28, 1997*
                                                                            THROUGH
                                                                          OCTOBER 31,
                                                                             1997++
- ----------------------------------------------------------------------------------------
 
<S>                                                                     <C>
CLASS D SHARES
 
PER SHARE OPERATING PERFORMANCE:
 
Net asset value, beginning of period..................................      $ 19.39
                                                                             ------
 
Net investment income.................................................         0.02
 
Net realized and unrealized loss......................................        (6.55)
                                                                             ------
 
Total from investment operations......................................        (6.53)
                                                                             ------
 
Net asset value, end of period........................................      $ 12.86
                                                                             ------
                                                                             ------
 
TOTAL INVESTMENT RETURN+..............................................       (33.68)%(1)
 
RATIOS TO AVERAGE NET ASSETS:
 
Expenses..............................................................         1.62% (2)
 
Net investment income.................................................         0.42% (2)
 
SUPPLEMENTAL DATA:
 
Net assets, end of period, in thousands...............................         $118
 
Portfolio turnover rate...............................................           42%
 
Average commission rate paid..........................................      $0.0075
 
- ---------------------
 *   The date shares were first issued.
++   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.
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
 
                                       74
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
REPORT OF INDEPENDENT ACCOUNTANTS
 
TO THE SHAREHOLDERS AND BOARD OF DIRECTORS
OF DEAN WITTER PACIFIC GROWTH FUND INC.
 
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 Pacific Growth Fund
Inc. (the "Fund") at October 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 October
31, 1997 by correspondence with the custodian and brokers and the application of
alternative auditing procedures where confirmations from brokers were not
received, provide a reasonable basis for the opinion expressed above.
 
PRICE WATERHOUSE LLP
1177 AVENUE OF THE AMERICAS
NEW YORK, NEW YORK 10036
DECEMBER 17, 1997
 
                      1997 FEDERAL TAX NOTICE (UNAUDITED)
 
       For the year ended October 31, 1997, the Fund has elected,
       pursuant to Section 853 of the Internal Revenue Code, to
       pass-through foreign taxes of $0.04 per share to its shareholders.
       The Fund generated net foreign source income of $0.04 per share
       with respect to this election.
 
                                       75
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS APRIL 30, 1998 (UNAUDITED)
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  COMMON STOCKS, BONDS, RIGHTS
                  AND WARRANTS (94.0%)
                  AUSTRALIA (4.6%)
                  BANKING
      1,187,700   Westpac Banking Corp., Ltd......................................................  $  7,943,088
                                                                                                    ------------
                  COMMERCIAL SERVICES
        100,000   Mayne Nickless Ltd..............................................................       537,750
                                                                                                    ------------
                  FOOD, BEVERAGE, TOBACCO, & HOUSEHOLD PRODUCTS
      1,200,000   Foster's Brewing Group Ltd......................................................     2,602,395
      5,131,000   Goodman Fielder Ltd.............................................................     7,929,109
                                                                                                    ------------
                                                                                                      10,531,504
                                                                                                    ------------
                  MULTI-INDUSTRY
      1,050,000   Pacific Dunlop Ltd..............................................................     1,936,213
                                                                                                    ------------
                  OIL - EXPLORATION & PRODUCTION
      1,100,000   Oil Search Ltd..................................................................     2,414,097
                                                                                                    ------------
                  RETAIL STORES
        502,200   Coles Myer Ltd..................................................................     2,419,502
                                                                                                    ------------
                  TOTAL AUSTRALIA.................................................................    25,782,154
                                                                                                    ------------
                  CHINA (1.3%)
                  INVESTMENT COMPANIES
        100,000   Investment Co. of China* ***....................................................       494,000
                                                                                                    ------------
                  METALS & MINING
      6,000,000   Yanzhou Coal Mining Co. Ltd.*...................................................     1,568,146
                                                                                                    ------------
                  MISCELLANEOUS
      3,920,000   China Resources Beijing Land....................................................     2,074,342
                                                                                                    ------------
                  UTILITIES - ELECTRIC
      2,950,000   Huaneng Power International, Inc.*..............................................     1,656,234
      4,000,000   Zhejiang Southeast Electric Power Co., Ltd. (B Shares)..........................     1,376,000
                                                                                                    ------------
                                                                                                       3,032,234
                                                                                                    ------------
 
                  TOTAL CHINA.....................................................................     7,168,722
                                                                                                    ------------
                  HONG KONG (29.4%)
                  BANKING
        750,000   Dah Sing Financial Group........................................................     1,829,504
      1,575,838   Dao Heng Bank Group Ltd.........................................................     4,657,549
      1,150,000   Hang Seng Bank Ltd..............................................................     9,684,757
        244,400   HSBC Holdings PLC...............................................................     6,971,141
                                                                                                    ------------
                                                                                                      23,142,951
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  CONGLOMERATES
      1,200,000   Citic Pacific Ltd...............................................................  $  3,686,113
      4,142,000   Hutchison Whampoa, Ltd..........................................................    25,606,840
        769,000   Swire Pacific Ltd. (Class A)....................................................     3,841,030
                                                                                                    ------------
                                                                                                      33,133,983
                                                                                                    ------------
                  ELECTRONIC & ELECTRICAL EQUIPMENT
      1,500,000   ASM Pacific Technology Ltd......................................................     1,161,590
      4,000,000   Elec & Eltek International Holdings Ltd.........................................     1,135,777
      1,125,000   Johnson Electric Holdings Ltd...................................................     3,811,468
                                                                                                    ------------
                                                                                                       6,108,835
                                                                                                    ------------
                  ENGINEERING & CONSTRUCTION
      1,381,000   Road King Infrastructure Ltd.*..................................................     1,283,325
                                                                                                    ------------
                  HOTELS/MOTELS
      1,036,000   CDL Hotels International, Ltd...................................................       317,566
                                                                                                    ------------
                  MISCELLANEOUS
        716,000   New World Infrastructure Ltd.*..................................................     1,538,642
                                                                                                    ------------
                  REAL ESTATE
      3,250,000   Cheung Kong (Holdings) Ltd......................................................    21,602,349
        700,000   China Resources Enterprise Ltd..................................................     1,201,600
      3,853,000   New World Development Co., Ltd..................................................    10,965,236
      2,600,000   Sun Hung Kai Properties Ltd.....................................................    15,436,242
      3,300,000   Wharf (Holdings) Ltd............................................................     5,281,363
                                                                                                    ------------
                                                                                                      54,486,790
                                                                                                    ------------
                  RETAIL - FOOD CHAINS
      2,250,000   Dairy Farm International Holdings Ltd...........................................     2,880,000
                                                                                                    ------------
                  TELECOMMUNICATIONS
      2,968,000   China Telecom Ltd.*.............................................................     5,631,079
      9,200,000   Hong Kong Telecommunications Ltd................................................    17,217,346
                                                                                                    ------------
                                                                                                      22,848,425
                                                                                                    ------------
                  UTILITIES
      2,375,000   CLP Holdings Ltd................................................................    11,402,943
      3,000,000   Hong Kong & China Gas Co., Ltd..................................................     4,084,925
      1,855,000   Hong Kong Electric Holdings Ltd.................................................     5,698,116
                                                                                                    ------------
                                                                                                      21,185,984
                                                                                                    ------------
 
                  TOTAL HONG KONG.................................................................   166,926,501
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       76
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  INDIA (1.6%)
                  ALUMINUM
         91,000   Hindalco Industries Ltd. (GDR)*.................................................  $  1,751,750
                                                                                                    ------------
                  BANKS
        162,000   State Bank of India (GDR)*......................................................     3,078,000
                                                                                                    ------------
                  TELECOMMUNICATIONS
        134,900   Mahanagar Telephone Nigam Ltd. (GDR)*...........................................     2,175,262
                                                                                                    ------------
                  TEXTILES
         85,000   Reliance Industries Ltd. (GDR)..................................................       775,625
                                                                                                    ------------
                  TOBACCO
         65,000   ITC Ltd. (GDR)..................................................................     1,495,000
                                                                                                    ------------
                  TOTAL INDIA.....................................................................     9,275,637
                                                                                                    ------------
                  INDONESIA (1.3%)
                  AUTO RELATED
     11,404,500   PT Astra International Inc......................................................     2,259,383
                                                                                                    ------------
                  BUILDING MATERIALS
         11,598   PT Mulia Industrindo*...........................................................           875
                                                                                                    ------------
                  FOREST PRODUCTS, PAPER & PACKING
        310,300   PT Pabrik Kertas Tjiwi Kimia (Warrants due 07/15/02)*...........................        38,095
                                                                                                    ------------
                  INVESTMENT COMPANIES
      2,500,000   Peregrine Indonesia Fund Ltd.**.................................................       422,000
                                                                                                    ------------
                  OIL & GAS EXPLORATION
        200,600   Gulf Indonesia Resources Ltd.*..................................................     3,084,225
                                                                                                    ------------
                  PLANTATION
            100   PT London Sumatra Indonesia.....................................................            25
                                                                                                    ------------
                  TELECOMMUNICATIONS
        231,200   PT Telekomunikasi Indonesia.....................................................     1,849,600
                                                                                                    ------------
                  TOTAL INDONESIA.................................................................     7,654,203
                                                                                                    ------------
                  JAPAN (18.6%)
                  APPAREL
         36,000   World Co., Ltd..................................................................       834,688
                                                                                                    ------------
                  AUTO TRUCKS & PARTS
         39,000   NGK Spark Plug Co., Ltd.........................................................       305,330
         54,000   Yasunaga Corp...................................................................       341,463
                                                                                                    ------------
                                                                                                         646,793
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  AUTOMOTIVE
         75,000   Honda Motor Co..................................................................  $  2,710,027
         79,000   Toyota Motor Corp...............................................................     2,051,716
                                                                                                    ------------
                                                                                                       4,761,743
                                                                                                    ------------
                  BANKING
        184,000   Asahi Bank, Ltd.................................................................       706,414
        209,000   Bank of Tokyo-Mitsubishi Ltd....................................................     2,578,674
        167,000   Mitsui Trust & Banking Co., Ltd.................................................       360,802
        134,000   Sanwa Bank, Ltd.................................................................     1,180,217
        133,000   Sumitomo Bank...................................................................     1,251,506
        140,000   Sumitomo Trust & Banking........................................................       729,298
                                                                                                    ------------
                                                                                                       6,806,911
                                                                                                    ------------
                  BEVERAGES
         31,000   Itoen, Ltd......................................................................       903,117
                                                                                                    ------------
                  BUILDING & CONSTRUCTION
         51,000   Kaneshita Construction..........................................................       264,905
                                                                                                    ------------
                  BUILDING MATERIALS
         77,000   Ibiden Co., Ltd.................................................................     1,211,457
        238,000   Sanwa Shutter...................................................................     1,101,852
     Y   63,000 K Sanwa Shutter Corp. 0.90% due 03/31/06 (Conv.)..................................       424,458
                                                                                                    ------------
                                                                                                       2,737,767
                                                                                                    ------------
                  BUSINESS SERVICES
        158,000   Ricoh Co., Ltd..................................................................     1,630,669
         28,000   Secom Co........................................................................     1,644,083
                                                                                                    ------------
                                                                                                       3,274,752
                                                                                                    ------------
                  CHEMICALS
        605,000   Mitsubishi Chemical Corp........................................................     1,093,044
        356,000   Nippon Zeon Co., Ltd............................................................       830,774
         89,000   Shin-Etsu Chemical Co...........................................................     1,728,546
        155,000   Sumitomo Bakelite Co., Ltd......................................................     1,071,138
                                                                                                    ------------
                                                                                                       4,723,502
                                                                                                    ------------
                  CHEMICALS - SPECIALTY
         70,000   Sanyo Chemical Industries, Ltd..................................................       583,860
                                                                                                    ------------
                  COMMERCIAL SERVICES
         29,000   Nichii Gakkan Co................................................................       938,723
                                                                                                    ------------
                  COMPUTER SOFTWARE & SERVICES
         53,000   Hitachi Software Engineering Co., Ltd...........................................     1,452,273
         29,000   Meitec Corp.....................................................................       949,639
         14,000   Nintendo Co., Ltd...............................................................     1,279,434
             50   NTT Data Corp...................................................................     2,152,966
                                                                                                    ------------
                                                                                                       5,834,312
                                                                                                    ------------
                  COMPUTERS
          7,000   Nidec Corp......................................................................       374,134
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       77
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  ELECTRONIC & ELECTRICAL EQUIPMENT
         86,000   Aiwa Co., Ltd...................................................................  $  2,557,212
     Y   99,000 K Canon, Inc. 1.20% due 12/20/05 (Conv.)..........................................     1,559,824
     Y   49,000 K Canon, Inc. 1.30% due 12/19/08 (Conv.)..........................................       769,083
        151,000   Hitachi, Ltd....................................................................     1,078,734
         49,000   Mitsui High-Tec.................................................................     1,161,924
         29,600   Sony Corp.......................................................................     2,453,297
        116,000   Sumitomo Electric Industries....................................................     1,377,085
         14,000   TDK Corp........................................................................     1,102,379
                                                                                                    ------------
                                                                                                      12,059,538
                                                                                                    ------------
                  ELECTRONICS
         17,000   Rohm Co., Ltd...................................................................     1,911,924
                                                                                                    ------------
                  ELECTRONICS - SEMICONDUCTORS/COMPONENTS
         22,800   Shinko Electric Industries Co., Ltd.............................................       990,334
         39,000   Tokyo Seimitsu Co., Ltd.........................................................     1,142,051
                                                                                                    ------------
                                                                                                       2,132,385
                                                                                                    ------------
                  ENGINEERING & CONSTRUCTION
        312,000   Kajima Corp.....................................................................       904,246
                                                                                                    ------------
                  ENTERTAINMENT
         33,700   Sony Music Entertainment Inc....................................................     1,314,107
                                                                                                    ------------
                  FINANCIAL SERVICES
         14,740   Nichiei Co., Ltd. (Kyoto).......................................................     1,142,894
        132,000   Nomura Securities Co., Ltd......................................................     1,604,788
         19,500   Orix Corp.......................................................................     1,343,157
                                                                                                    ------------
                                                                                                       4,090,839
                                                                                                    ------------
                  FOOD, BEVERAGE, TOBACCO, & HOUSEHOLD PRODUCTS
        127,000   Nippon Meat Packers, Inc........................................................     1,720,867
                                                                                                    ------------
                  HAND TOOLS
         39,000   Disco Corp......................................................................     1,115,628
                                                                                                    ------------
                  HEALTH & PERSONAL CARE
         70,000   Sankyo Co., Ltd.................................................................     1,728,395
                                                                                                    ------------
                  INDUSTRIALS
     Y   26,000 K Nippon Densan Corp. 1.00% 09/30/03 (Conv.)......................................       369,332
                                                                                                    ------------
                  INSURANCE
        212,000   Tokio Marine & Fire Insurance Co................................................     2,298,103
                                                                                                    ------------
                  MACHINERY
        133,000   Daifuku Co., Ltd................................................................       523,630
         74,000   Fuji Machine Manufacturing Co., Ltd.............................................     2,105,691
         12,100   Keyence Corp....................................................................     1,623,171
         91,000   Kurita Water Industries Ltd.....................................................       998,095
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
         91,000   Minebea Co., Ltd................................................................  $  1,013,851
     Y   21,000 K Minebea Co., Ltd. 0.80% due 03/31/03 (Conv.)....................................       276,649
        165,000   OSG Corp........................................................................       968,835
         30,700   Shima Seiki Manufacturing, Ltd..................................................     1,028,418
                                                                                                    ------------
                                                                                                       8,538,340
                                                                                                    ------------
                  MANUFACTURING
         54,000   Nichiha Corp....................................................................       443,902
                                                                                                    ------------
                  MERCHANDISING
         38,800   Shimamura Co., Ltd..............................................................       958,025
                                                                                                    ------------
                  METALS & MINING
        786,000   Nippon Steel Co.................................................................     1,260,298
         39,000   Sumitomo Special Metals.........................................................       870,483
                                                                                                    ------------
                                                                                                       2,130,781
                                                                                                    ------------
                  METALS - NON-FERROUS
        200,000   Fujikura Ltd....................................................................     1,026,799
        384,000   Mitsui Mining & Smelting........................................................     1,589,883
                                                                                                    ------------
                                                                                                       2,616,682
                                                                                                    ------------
                  OFFICE EQUIPMENT
          5,900   Riso Kagaku.....................................................................       306,903
                                                                                                    ------------
                  PAPER PRODUCTS
        209,000   Tomoegawa Paper Co. Ltd.........................................................       621,462
                                                                                                    ------------
                  PHARMACEUTICALS
         61,000   Eisai Co., Ltd..................................................................       872,478
         88,000   Takeda Chemical Industries......................................................     2,504,065
                                                                                                    ------------
                                                                                                       3,376,543
                                                                                                    ------------
                  REAL ESTATE
         45,700   Chubu Sekiwa Real Estate, Ltd...................................................       216,734
         20,000   Heiwa Real Estate Co., Ltd......................................................       150,557
     Y  190,000 K Heiwa Real Estate Co., Ltd. 2.50% due 03/29/02 (Conv.)..........................       572,117
        105,000   Mitsubishi Estate Co., Ltd......................................................     1,011,743
        154,000   Mitsui Fudosan Co., Ltd.........................................................     1,400,422
                                                                                                    ------------
                                                                                                       3,351,573
                                                                                                    ------------
                  RETAIL
         19,700   Otsuka Kagu Ltd.................................................................       897,207
        156,000   Tokyo Style Co., Ltd............................................................     1,409,214
                                                                                                    ------------
                                                                                                       2,306,421
                                                                                                    ------------
                  RETAIL - DEPARTMENT STORES
        156,000   Hankyu Department Stores........................................................       967,660
                                                                                                    ------------
                  RETAIL - GENERAL MERCHANDISE
         24,500   Circle K Japan Co., Ltd.........................................................     1,005,157
         28,000   Seven-Eleven Japan Co., Ltd.....................................................     1,865,402
                                                                                                    ------------
                                                                                                       2,870,559
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       78
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  RETAIL - SPECIALTY
         23,000   Aderans Co., Ltd................................................................  $    541,930
                                                                                                    ------------
                  STEEL
        866,000   Sumitomo Metal Industries.......................................................     1,427,687
        123,000   Yamato Kogyo Co., Ltd...........................................................       912,963
                                                                                                    ------------
                                                                                                       2,340,650
                                                                                                    ------------
                  TELECOMMUNICATIONS
            315   DDI Corp........................................................................       794,377
            277   Nippon Telegraph & Telephone Corp...............................................     2,418,850
                                                                                                    ------------
                                                                                                       3,213,227
                                                                                                    ------------
                  TELECOMMUNICATIONS EQUIPMENT
        108,000   Nippon Comsys Corp..............................................................     1,263,415
                                                                                                    ------------
                  TEXTILES
        520,000   Mitsubishi Rayon Co., Ltd.......................................................     1,409,214
        384,000   Nitto Boseki Co., Ltd...........................................................       881,662
                                                                                                    ------------
                                                                                                       2,290,876
                                                                                                    ------------
                  TRANSPORTATION
        260,000   Tokyu Corp......................................................................     1,031,466
                                                                                                    ------------
                  UTILITIES - ELECTRIC
         69,000   Tokyo Electric Power Co.........................................................     1,316,734
                                                                                                    ------------
                  UTILITIES - GAS
        434,000   Tokyo Gas Co., Ltd..............................................................       976,859
                                                                                                    ------------
                  WHOLESALE & INTERNATIONAL TRADE
         76,000   Mitsui & Co.....................................................................       469,136
                                                                                                    ------------
                  WHOLESALE DISTRIBUTOR
         17,100   Fujimi, Inc.*...................................................................       683,537
         43,000   Misumi Corp.....................................................................       757,453
                                                                                                    ------------
                                                                                                       1,440,990
                                                                                                    ------------
                  TOTAL JAPAN.....................................................................   105,704,705
                                                                                                    ------------
                  MALAYSIA (8.1%)
                  AUTOMOTIVE
        450,000   Edaran Otomobil Nasional Berhad.................................................       773,154
      1,065,000   Oriental Holdings Berhad........................................................     2,230,067
                                                                                                    ------------
                                                                                                       3,003,221
                                                                                                    ------------
                  BANKING
      1,299,000   Commerce Asset-Holding Berhad...................................................       976,429
        950,000   Malayan Banking Berhad..........................................................     2,805,369
      3,000,399   Public Bank Berhad..............................................................     1,433,748
                                                                                                    ------------
                                                                                                       5,215,546
                                                                                                    ------------
                  BUILDING & CONSTRUCTION
        750,000   Gamuda Berhad...................................................................       849,664
      1,300,000   Lingkaran Trans Kota Holdings Berhad*...........................................     1,221,476
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
          1,750   Sungei Way Holdings Berhad (Warrants due 06/29/99)*.............................  $        106
                                                                                                    ------------
                                                                                                       2,071,246
                                                                                                    ------------
                  ELECTRONICS
        475,000   Malaysian Pacific Industries Berhad.............................................     1,364,430
                                                                                                    ------------
                  INSURANCE
      1,305,000   Malaysian Assurance Alliance Berhad.............................................     2,277,181
                                                                                                    ------------
                  LEISURE
      1,238,000   Berjaya Sports Toto Berhad......................................................     2,941,289
      4,161,000   Metroplex Berhad................................................................     1,150,558
      1,018,000   Resorts World Berhad............................................................     1,967,678
                                                                                                    ------------
                                                                                                       6,059,525
                                                                                                    ------------
                  MULTI-INDUSTRY
      1,250,000   Hong Leong Industries Berhad....................................................     1,328,859
                                                                                                    ------------
                  PLANTATION
      1,300,000   Highlands & Lowlands Berhad.....................................................     1,458,792
      3,894,000   IOI Corporated Berhad...........................................................     2,927,034
        750,000   Kuala Lumpur Kepong Berhad......................................................     1,741,611
                                                                                                    ------------
                                                                                                       6,127,437
                                                                                                    ------------
                  PUBLISHING
        752,000   Star Publications...............................................................     1,069,960
                                                                                                    ------------
                  TELECOMMUNICATIONS
      2,325,000   Telekom Malaysia Berhad.........................................................     6,990,604
                                                                                                    ------------
                  TOBACCO
        600,000   RJ Reynolds Berhad..............................................................       958,389
                                                                                                    ------------
                  UTILITIES
      2,875,000   Tenaga Nasional Berhad..........................................................     5,750,000
                                                                                                    ------------
                  UTILITIES - ELECTRIC
        853,000   Malakoff Berhad.................................................................     2,244,134
                                                                                                    ------------
                  WATER
      1,800,000   Puncak Niaga Holdings Berhad*...................................................     1,613,960
                                                                                                    ------------
 
                  TOTAL MALAYSIA..................................................................    46,074,492
                                                                                                    ------------
 
                  PHILIPPINES (2.0%)
                  BUILDING MATERIALS
         46,260   Bacnotan Consolidated Industries................................................        69,131
                                                                                                    ------------
                  CONGLOMERATES
      2,400,000   First Philippine Holdings Corp. (B Shares)......................................     1,763,387
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       79
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  REAL ESTATE
      5,288,400   Ayala Land, Inc. (B Shares).....................................................  $  2,074,528
                                                                                                    ------------
                  TELECOMMUNICATIONS
        184,800   Philippine Long Distance Telephone Co. (ADR)....................................     4,989,600
                                                                                                    ------------
                  UTILITIES
        892,963   Manila Electric Co. (B Shares)..................................................     2,535,437
                                                                                                    ------------
 
                  TOTAL PHILIPPINES...............................................................    11,432,083
                                                                                                    ------------
 
                  SINGAPORE (11.0%)
                  BANKING
        512,500   Development Bank of Singapore, Ltd..............................................     3,400,474
      1,256,200   Overseas Chinese Banking Corp., Ltd.............................................     6,628,291
      1,210,000   Overseas Union Bank, Ltd........................................................     4,587,678
      1,011,000   United Overseas Bank, Ltd.......................................................     4,791,469
                                                                                                    ------------
                                                                                                      19,407,912
                                                                                                    ------------
                  CONGLOMERATES
        765,750   Keppel Corp., Ltd.*.............................................................     2,061,356
      1,830,000   Natsteel Ltd....................................................................     2,405,308
        420,000   Sembawang Corp., Ltd............................................................       838,673
                                                                                                    ------------
                                                                                                       5,305,337
                                                                                                    ------------
                  ELECTRONIC & ELECTRICAL EQUIPMENT
        450,000   Elec & Eltek International Co., Ltd.............................................     2,610,000
      1,408,000   Venture Manufacturing Ltd.......................................................     5,115,956
                                                                                                    ------------
                                                                                                       7,725,956
                                                                                                    ------------
                  ELECTRONICS
        300,000   GP Batteries International Ltd..................................................       830,332
                                                                                                    ------------
                  ENGINEERING
      3,371,243   Singapore Technologies Engineering Ltd.*........................................     2,897,245
                                                                                                    ------------
                  PUBLISHING
        413,424   Singapore Press Holdings Ltd....................................................     4,571,829
                                                                                                    ------------
                  REAL ESTATE
        950,400   City Developments, Ltd..........................................................     4,113,896
      1,277,000   DBS Land Ltd....................................................................     1,928,613
      1,000,000   Keppel Land Ltd.................................................................     1,187,994
                                                                                                    ------------
                                                                                                       7,230,503
                                                                                                    ------------
                  SHIPBUILDING
        390,000   Jurong Shipyard Ltd.............................................................     1,946,919
        560,000   Keppel Fels Ltd.................................................................     1,649,036
                                                                                                    ------------
                                                                                                       3,595,955
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  TRANSPORTATION
      1,175,000   Singapore Airlines Ltd..........................................................  $  7,647,709
                                                                                                    ------------
                  UTILITIES - TELECOMMUNICATIONS
      1,680,000   Singapore Telecommunications, Ltd...............................................     2,887,583
                                                                                                    ------------
 
                  TOTAL SINGAPORE.................................................................    62,100,361
                                                                                                    ------------
 
                  SOUTH KOREA (4.1%)
                  COMMUNICATIONS - EQUIPMENT/MANUFACTURERS
              1   LG Information & Communication Ltd..............................................            30
                                                                                                    ------------
                  ELECTRONIC & ELECTRICAL EQUIPMENT
         50,000   Samsung Display Devices Co......................................................     2,490,637
          9,769   Samsung Display Devices Co. (Rights)............................................       169,768
        131,118   Samsung Electronics Co..........................................................     7,267,964
         10,431   Samsung Electronics Co. (GDR) (Rights)..........................................       201,588
                                                                                                    ------------
                                                                                                      10,129,957
                                                                                                    ------------
                  INVESTMENT COMPANIES
        234,000   Atlantis Korean Smaller Companies*..............................................     1,200,420
         65,000   Clemente Korea Emerging Growth Fund*............................................       220,350
                                                                                                    ------------
                                                                                                       1,420,770
                                                                                                    ------------
                  SHIPBUILDING
        360,000   Daewoo Heavy Industries.........................................................     1,782,472
                                                                                                    ------------
                  STEEL & IRON
        133,685   Pohang Iron & Steel Co., Ltd....................................................     7,239,218
                                                                                                    ------------
                  UTILITIES
        207,000   Korea Electric Power Corp.......................................................     2,822,023
                                                                                                    ------------
 
                  TOTAL SOUTH KOREA...............................................................    23,394,470
                                                                                                    ------------
 
                  TAIWAN (8.7%)
                  BANKS
        705,000   China Development Corp..........................................................     1,913,785
        846,400   China Trust Commercial Bank*....................................................       993,499
        372,960   International Commercial Bank of China..........................................       542,981
        737,880   United World Chinese Commercial Bank*...........................................     1,018,306
                                                                                                    ------------
                                                                                                       4,468,571
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       80
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
<TABLE>
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  BUILDING & CONSTRUCTION
        802,420   Cathay Construction Corp........................................................  $    744,739
                                                                                                    ------------
                  BUILDING MATERIALS
        307,590   Asia Cement Corp. (GDR).........................................................     3,268,144
                                                                                                    ------------
                  CHEMICALS
         56,000   Formosa Chemical & Fibre Corp...................................................        57,749
      1,013,700   Formosa Plastic Corp............................................................     1,737,156
$         2,925 K Nan Ya Plastics Corp. 1.75% due 07/09/01 (Conv.)................................     3,393,000
                                                                                                    ------------
                                                                                                       5,187,905
                                                                                                    ------------
                  COMPUTERS
         52,750   Acer Inc.*......................................................................        87,997
        183,000   Acer Inc. (GDR)*................................................................     1,619,550
$         1,900 K Acer Peripherals Inc. 1.25% due 11/27/06 (Conv.)................................     2,147,000
$         2,100 K Compal Electronics 1.00% due 11/21/03 (Conv.)...................................     4,515,000
        780,000   Microtek International, Inc.*...................................................     1,111,920
$         1,000 K Yageo Corp. 1.25% due 07/24/03 (Conv.)..........................................     1,620,000
                                                                                                    ------------
                                                                                                      11,101,467
                                                                                                    ------------
                  ELECTRONICS - SEMICONDUCTORS/COMPONENTS
        541,800   Siliconware Precision Industries Co.*...........................................     1,314,650
$           230 K Siliconware Precision Industries Co. 0.50% due 07/21/04 (Conv.).................       232,300
      1,212,500   Taiwan Semiconductor Manufacturing Co.*.........................................     5,240,560
         40,000   Taiwan Semiconductor Manufacturing Co. Ltd. (ADR)*..............................       970,000
$         1,800 K United Microelectronics Corp. - 144A ** 0.25% due 05/16/04 (Conv.)..............     1,998,000
                                                                                                    ------------
                                                                                                       9,755,510
                                                                                                    ------------
                  INVESTMENT COMPANIES
            600   Taipei Fund*....................................................................     6,079,200
                                                                                                    ------------
                  LIFE INSURANCE
        842,350   Cathay Life Insurance Co., Ltd..................................................     3,372,466
                                                                                                    ------------
                  MANUFACTURING
      1,032,000   President Enterprises Corp.*....................................................     1,083,021
                                                                                                    ------------
 
<CAPTION>
SHARES/PRINCIPAL
     AMOUNT                                                                                            VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  STEEL & IRON
      2,802,800   China Steel Corp................................................................  $  1,768,221
         69,300   China Steel Corp. (GDS).........................................................       874,912
                                                                                                    ------------
                                                                                                       2,643,133
                                                                                                    ------------
                  TRANSPORTATION
$         2,000 K U-Ming Marine Transport 1.50% due 02/07/01 (Conv.)..............................     1,720,000
                                                                                                    ------------
 
                  TOTAL TAIWAN....................................................................    49,424,156
                                                                                                    ------------
 
                  THAILAND (3.3%)
                  BANKING
      1,226,100   Bangkok Bank PCL................................................................     3,097,180
      1,755,000   Thai Farmers Bank PCL...........................................................     4,044,727
                                                                                                    ------------
                                                                                                       7,141,907
                                                                                                    ------------
                  OIL RELATED
          8,400   PTT Exploration & Production PCL................................................        89,250
                                                                                                    ------------
                  TELECOMMUNICATIONS
        460,000   Advanced Info Service PCL.......................................................     3,114,583
                                                                                                    ------------
                  TELEVISION
        410,000   BEC World PCL...................................................................     2,178,125
                                                                                                    ------------
                  TRANSPORTATION
      3,814,000   Bangkok Expressway PCL*.........................................................     3,029,349
        312,000   Regional Container Line Co., Ltd................................................       365,625
                                                                                                    ------------
                                                                                                       3,394,974
                                                                                                    ------------
                  UTILITIES - ELECTRIC
      2,200,000   Cogeneration PCL*...............................................................     1,317,708
        800,200   Electricity Generating PCL*.....................................................     1,562,890
                                                                                                    ------------
                                                                                                       2,880,598
                                                                                                    ------------
 
                  TOTAL THAILAND..................................................................    18,799,437
                                                                                                    ------------
 
                  TOTAL COMMON STOCKS, BONDS, RIGHTS AND WARRANTS
                  (IDENTIFIED COST $639,845,023)..................................................   533,736,921
                                                                                                    ------------
</TABLE>
 
<TABLE>
<CAPTION>
    CURRENCY
   AMOUNT IN
   THOUSANDS
- ----------------
<C>               <S>                                                                               <C>
                  PURCHASED PUT OPTION ON FOREIGN CURRENCY (0.6%)
    Y 6,964,310   August 11, 1998/Yen 123.70 (IDENTIFIED COST $1,522,915).........................     3,349,850
                                                                                                    ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       81
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
PORTFOLIO OF INVESTMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
 
<TABLE>
<CAPTION>
   PRINCIPAL
   AMOUNT IN
   THOUSANDS                                                                                           VALUE
- ----------------------------------------------------------------------------------------------------------------
<C>               <S>                                                                               <C>
                  SHORT-TERM INVESTMENTS (a) (3.6%)
                  COMMERCIAL PAPER
                  FINANCE - DIVERSIFIED
$           350   General Electric Capital Corp. 5.56% due 05/18/98...............................  $    349,089
                                                                                                    ------------
                  U.S. GOVERNMENT AGENCY
         20,000   Federal Home Loan Mortgage Corp. 5.43% due 05/01/98.............................    20,000,000
                                                                                                    ------------
 
                  TOTAL SHORT-TERM INVESTMENTS
                  (AMORTIZED COST $20,349,089)....................................................    20,349,089
                                                                                                    ------------
</TABLE>
 
<TABLE>
<S>                                                                                         <C>     <C>
TOTAL INVESTMENTS
(IDENTIFIED COST $661,717,027)(B).........................................................   98.2 %   557,435,860
 
CASH AND OTHER ASSETS IN EXCESS OF LIABILITIES............................................    1.8      10,062,927
                                                                                            ------  -------------
 
NET ASSETS................................................................................  100.0 % $ 567,498,787
                                                                                            ------  -------------
                                                                                            ------  -------------
</TABLE>
 
- ---------------------
 
ADR  American Depository Receipt.
GDR  Global Depository Receipt.
GDS  Global Depository Shares.
 K   In thousands.
 *   Non-income producing security.
**   Resale is restricted to qualified institutional investors.
***  Partially paid shares. Resale is restricted to qualified institutional
     investors.
(a)  Securities were purchased on a discount basis. The interest rates shown
     have been adjusted to reflect a money market equivalent yield.
(b)  The aggregate cost for federal income tax purposes approximates identified
     cost. The aggregate gross unrealized appreciation is $29,948,082 and the
     aggregate gross unrealized depreciation is $134,229,249, resulting in net
     unrealized depreciation of $104,281,167.
 
FORWARD FOREIGN CURRENCY CONTRACTS OPEN AT APRIL 30, 1998
 
<TABLE>
<CAPTION>
                                                       UNREALIZED
CONTRACTS TO           IN           DELIVERY         APPRECIATION/
  DELIVER         EXCHANGE FOR        DATE           (DEPRECIATION)
 --------------------------------------------------------------------
<S>               <C>               <C>           <C>
SGD  448,455      $    281,428      05/04/98          $    (1,956)
HKD 1,435,586     $    185,309      05/04/98                   24
MYR 1,130,645     $    299,509      05/05/98               (4,020)
$    1,452,883    Y 192,216,370     05/06/98               (5,906)
SGD 8,806,250     $  4,591,012      07/13/98             (963,510)
                                                       ----------
      Net unrealized depreciation...........          $  (975,368)
                                                       ----------
                                                       ----------
</TABLE>
 
CURRENCY ABBREVIATIONS:
 
<TABLE>
<S>        <C>
HKD        Hong Kong Dollar
Y          Japanese Yen
MYR        Malaysian Ringgit
SGD        Singapore Dollar
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       82
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
SUMMARY OF INVESTMENTS APRIL 30, 1998 (UNAUDITED)
<TABLE>
<CAPTION>
                                                                                                  PERCENT OF
INDUSTRY                                                                               VALUE      NET ASSETS
- ------------------------------------------------------------------------------------------------------------
<S>                                                                                 <C>           <C>
Aluminum..........................................................................  $  1,751,750       0.3  %
Apparel...........................................................................       834,688       0.1
Auto Related......................................................................     2,259,382       0.4
Auto Trucks & Parts...............................................................       646,793       0.1
Automotive........................................................................     7,764,964       1.4
Banking...........................................................................    69,658,316      12.3
Banks.............................................................................     7,546,571       1.3
Beverages.........................................................................       903,117       0.2
Building & Construction...........................................................     3,080,890       0.5
Building Materials................................................................     6,075,917       1.1
Business Services.................................................................     3,274,752       0.6
Chemicals.........................................................................     9,911,407       1.7
Chemicals - Specialty.............................................................       583,860       0.1
Commercial Services...............................................................     1,476,473       0.3
Communications - Equipment/Manufacturers..........................................            30       0.0
Computer Software & Services......................................................     5,834,312       1.0
Computers.........................................................................    11,475,601       2.0
Conglomerates.....................................................................    40,202,706       7.1
Currency Options..................................................................     3,349,850       0.6
Electronic & Electrical Equipment.................................................    36,024,285       6.3
Electronics.......................................................................     4,106,686       0.7
Electronics - Semiconductors/Components...........................................    11,887,895       2.1
Engineering.......................................................................     2,897,245       0.5
Engineering & Construction........................................................     2,187,571       0.4
Entertainment.....................................................................     1,314,107       0.2
Finance - Diversified.............................................................       349,089       0.1
Financial Services................................................................     4,090,839       0.7
Food, Beverage, Tobacco, & Household Products.....................................    12,252,371       2.2
Forest Products, Paper & Packing..................................................        38,095       0.0
Hand Tools........................................................................     1,115,628       0.2
Health & Personal Care............................................................     1,728,395       0.3
Hotels/Motels.....................................................................       317,566       0.1
Industrials.......................................................................       369,332       0.1
Insurance.........................................................................     4,575,284       0.8
Investment Companies..............................................................     8,415,970       1.5
Leisure...........................................................................     6,059,525       1.1
Life Insurance....................................................................     3,372,466       0.6
Machinery.........................................................................     8,538,340       1.5
Manufacturing.....................................................................     1,526,923       0.3
Merchandising.....................................................................       958,025       0.2
Metals & Mining...................................................................     3,698,928       0.7
 
<CAPTION>
                                                                                                  PERCENT OF
INDUSTRY                                                                               VALUE      NET ASSETS
- ------------------------------------------------------------------------------------------------------------
<S>                                                                                 <C>           <C>
Metals - Non-Ferrous..............................................................  $  2,616,682       0.5  %
Miscellaneous.....................................................................     3,612,984       0.6
Multi-Industry....................................................................     3,265,072       0.6
Office Equipment..................................................................       306,903       0.1
Oil & Gas Exploration.............................................................     3,084,225       0.5
Oil - Exploration & Production....................................................     2,414,097       0.4
Oil Related.......................................................................        89,250       0.0
Paper Products....................................................................       621,462       0.1
Pharmaceuticals...................................................................     3,376,543       0.6
Plantation........................................................................     6,127,462       1.1
Publishing........................................................................     5,641,789       1.0
Real Estate.......................................................................    67,143,394      11.8
Retail............................................................................     2,306,421       0.4
Retail - Department Stores........................................................       967,660       0.2
Retail - Food Chains..............................................................     2,880,000       0.5
Retail - General Merchandise......................................................     2,870,559       0.5
Retail - Specialty................................................................       541,930       0.1
Retail Stores.....................................................................     2,419,502       0.4
Shipbuilding......................................................................     5,378,427       0.9
Steel.............................................................................     2,340,650       0.4
Steel & Iron......................................................................     9,882,351       1.7
Telecommunications................................................................    45,181,302       8.0
Telecommunications Equipment......................................................     1,263,415       0.2
Television........................................................................     2,178,125       0.4
Textiles..........................................................................     3,066,501       0.5
Tobacco...........................................................................     2,453,389       0.4
Transportation....................................................................    13,794,149       2.4
U.S. Government Agency............................................................    20,000,000       3.5
Utilities.........................................................................    32,293,444       5.7
Utilities - Electric..............................................................     9,473,700       1.7
Utilities - Gas...................................................................       976,859       0.2
Utilities - Telecommunications....................................................     2,887,583       0.5
Water.............................................................................     1,613,960       0.3
Wholesale & International Trade...................................................       469,136       0.1
Wholesale Distributor.............................................................     1,440,990       0.3
                                                                                    ------------       ---
                                                                                    $557,435,860      98.2  %
                                                                                    ------------       ---
                                                                                    ------------       ---
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                  PERCENT OF
TYPE OF INVESTMENT                                                                     VALUE      NET ASSETS
- ------------------------------------------------------------------------------------------------------------
<S>                                                                                 <C>           <C>
Common Stocks.....................................................................  $513,730,600      90.5  %
Convertible Bonds.................................................................    19,596,763       3.4
Foreign Currency Put Options......................................................     3,349,850       0.6
Rights & Warrants.................................................................       409,557       0.1
Short-Term Investments............................................................    20,349,090       3.6
                                                                                    ------------       ---
                                                                                    $557,435,860      98.2  %
                                                                                    ------------       ---
                                                                                    ------------       ---
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       83
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL STATEMENTS
 
STATEMENT OF ASSETS AND LIABILITIES
APRIL 30, 1998 (UNAUDITED)
 
<TABLE>
<S>                                                                                            <C>
ASSETS:
Investments in securities, at value
  (identified cost $661,717,027).............................................................  $ 557,435,860
Cash.........................................................................................      2,638,171
Receivable for:
    Investments sold.........................................................................      7,954,856
    Capital stock sold.......................................................................      5,220,768
    Dividends................................................................................      1,264,905
Prepaid expenses and other assets............................................................        190,000
                                                                                               -------------
     TOTAL ASSETS............................................................................    574,704,560
                                                                                               -------------
LIABILITIES:
Unrealized depreciation on open forward foreign currency contracts...........................        975,368
Payable for:
    Investments purchased....................................................................      1,681,860
    Compensated forward foreign currency contracts...........................................      1,500,543
    Capital stock repurchased................................................................        788,849
    Investment management fee................................................................        479,403
    Plan of distribution fee.................................................................        476,465
Accrued expenses and other payables..........................................................      1,303,285
                                                                                               -------------
     TOTAL LIABILITIES.......................................................................      7,205,773
                                                                                               -------------
     NET ASSETS..............................................................................  $ 567,498,787
                                                                                               -------------
                                                                                               -------------
COMPOSITION OF NET ASSETS:
Paid-in-capital..............................................................................  $ 993,129,825
Net unrealized depreciation..................................................................   (105,257,909)
Dividends in excess of net investment income.................................................    (14,915,526)
Accumulated net realized loss................................................................   (305,457,603)
                                                                                               -------------
     NET ASSETS..............................................................................  $ 567,498,787
                                                                                               -------------
                                                                                               -------------
CLASS A SHARES:
Net Assets...................................................................................     $2,651,013
Shares Outstanding (500,000,000
  AUTHORIZED, $.01 PAR VALUE)................................................................        239,467
     NET ASSET VALUE PER SHARE...............................................................         $11.07
                                                                                               -------------
                                                                                               -------------
     MAXIMUM OFFERING PRICE PER SHARE
       (NET ASSET VALUE PLUS 5.54% OF
      NET ASSET VALUE).......................................................................         $11.68
                                                                                               -------------
                                                                                               -------------
CLASS B SHARES:
Net Assets...................................................................................  $ 562,030,970
Shares Outstanding (500,000,000 AUTHORIZED, $.01 PAR VALUE)..................................     50,758,692
     NET ASSET VALUE PER SHARE...............................................................         $11.07
                                                                                               -------------
                                                                                               -------------
CLASS C SHARES:
Net Assets...................................................................................     $1,299,562
Shares Outstanding (500,000,000 AUTHORIZED, $.01 PAR VALUE)..................................        117,631
     NET ASSET VALUE PER SHARE...............................................................         $11.05
                                                                                               -------------
                                                                                               -------------
CLASS D SHARES:
Net Assets...................................................................................     $1,517,242
Shares Outstanding (500,000,000 AUTHORIZED, $.01 PAR VALUE)..................................        136,975
     NET ASSET VALUE PER SHARE...............................................................         $11.08
                                                                                               -------------
                                                                                               -------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       84
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF OPERATIONS
FOR THE SIX MONTHS ENDED APRIL 30, 1998 (UNAUDITED)
 
<TABLE>
<S>                                                                                             <C>
NET INVESTMENT INCOME:
 
INCOME
Dividends (net of $230,066 foreign withholding tax)...........................................  $  7,208,017
Interest (net of $862 foreign withholding tax)................................................       881,833
                                                                                                ------------
     TOTAL INCOME.............................................................................     8,089,850
                                                                                                ------------
EXPENSES
Investment management fee.....................................................................     3,110,945
Plan of distribution fee (Class A shares).....................................................         1,942
Plan of distribution fee (Class B shares).....................................................     3,092,601
Plan of distribution fee (Class C shares).....................................................         5,399
Transfer agent fees and expenses..............................................................     1,321,600
Custodian fees................................................................................     1,008,909
Shareholder reports and notices...............................................................       116,183
Registration fees.............................................................................        81,230
Professional fees.............................................................................        38,653
Directors' fees and expenses..................................................................         7,592
Other.........................................................................................        18,182
                                                                                                ------------
     TOTAL EXPENSES...........................................................................     8,803,236
                                                                                                ------------
     NET INVESTMENT LOSS......................................................................      (713,386)
                                                                                                ------------
NET REALIZED AND UNREALIZED GAIN (LOSS):
Net realized loss on:
    Investments...............................................................................  (173,720,457)
    Foreign exchange transactions.............................................................    (4,918,811)
                                                                                                ------------
     NET LOSS.................................................................................  (178,639,268)
                                                                                                ------------
Net change in unrealized appreciation/depreciation on:
    Investments...............................................................................    97,955,412
    Translation of forward foreign currency contracts and other assets and liabilities
      denominated in foreign currencies.......................................................      (541,038)
                                                                                                ------------
     NET APPRECIATION.........................................................................    97,414,374
                                                                                                ------------
     NET LOSS.................................................................................   (81,224,894)
                                                                                                ------------
NET DECREASE..................................................................................  $(81,938,280)
                                                                                                ------------
                                                                                                ------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       85
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL STATEMENTS, CONTINUED
 
STATEMENT OF CHANGES IN NET ASSETS
 
<TABLE>
<CAPTION>
                                                                         FOR THE SIX
                                                                        MONTHS ENDED       FOR THE YEAR
                                                                          APRIL 30,            ENDED
                                                                            1998         OCTOBER 31, 1997*
- ------------------------------------------------------------------------------------------------------------
                                                                         (UNAUDITED)
<S>                                                                     <C>            <C>
 
INCREASE (DECREASE) IN NET ASSETS:
 
OPERATIONS:
Net investment income (loss)..........................................  $    (713,386) $             386,894
Net realized loss.....................................................   (178,639,268)           (81,003,250)
Net change in unrealized appreciation/depreciation....................     97,414,374           (280,824,717)
                                                                        -------------  ---------------------
 
     NET DECREASE.....................................................    (81,938,280)          (361,441,073)
                                                                        -------------  ---------------------
 
DIVIDENDS TO SHAREHOLDERS FROM NET INVESTMENT INCOME
Class A shares........................................................        (18,402)          --
Class B shares........................................................    (10,272,862)           (25,258,274)
Class C shares........................................................        (13,025)          --
Class D shares........................................................        (17,045)          --
                                                                        -------------  ---------------------
 
     TOTAL DIVIDENDS..................................................    (10,321,334)           (25,258,274)
                                                                        -------------  ---------------------
Net decrease from capital stock transactions..........................    (85,933,169)          (492,076,963)
                                                                        -------------  ---------------------
 
     NET DECREASE.....................................................   (178,192,783)          (878,776,310)
 
NET ASSETS:
Beginning of period...................................................    745,691,570          1,624,467,880
                                                                        -------------  ---------------------
 
     END OF PERIOD
    (INCLUDING DIVIDENDS IN EXCESS OF NET INVESTMENT INCOME OF
    $14,915,526 AND $3,880,806, RESPECTIVELY).........................  $ 567,498,787  $         745,691,570
                                                                        -------------  ---------------------
                                                                        -------------  ---------------------
</TABLE>
 
- ---------------------
 
 *   Class A, Class C and Class D shares were issued July 28, 1997.
 
                       SEE NOTES TO FINANCIAL STATEMENTS
                                       86
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS APRIL 30, 1998 (UNAUDITED)
 
1. ORGANIZATION AND ACCOUNTING POLICIES
 
Dean Witter Pacific Growth Fund Inc. (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
maximize capital appreciation of its investments. The Fund was incorporated in
Maryland on June 13, 1990 and commenced operations on November 30, 1990. On July
28, 1997, the Fund commenced offering three additional classes of shares, with
the then current shares designated as Class B 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 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 procedures
adopted by the Directors); (2) listed options 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 are valued at the mean between
their latest bid and asked price; (3) 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; (4) when market
quotations are not readily available, including circumstances under which it is
determined by Dean Witter InterCapital Inc. (the "Investment Manager") or Morgan
Grenfell Investment Services Limited (the "Sub-Adviser") that sale and 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 Directors (valuation of
 
                                       87
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
 
debt 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); and (5)
short-term debt securities having a maturity date of more than sixty days at the
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.
Dividend income and other distributions are recorded on the ex-dividend date
except for certain dividends from foreign securities which are recorded as soon
as the Fund is informed after the ex-dividend date. Discounts are accreted over
the life of the respective securities. 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. OPTION ACCOUNTING PRINCIPLES -- When the Fund writes a call option, an amount
equal to the premium received is included in the Fund's Statement of Assets and
Liabilities as a liability which is subsequently marked-to-market to reflect the
current market value of the option written. If a written option either expires
or the Fund enters into a closing purchase transaction, the Fund realizes a gain
or loss without regard to any unrealized gain or loss on the underlying security
or currency and the liability related to such option is extinguished. If a
written call option is exercised, the Fund realizes a gain or loss from the sale
of the underlying security or currency and the proceeds from such sale are
increased by the premium originally received.
 
When the Fund purchases a call or put option, the premium paid is recorded as an
investment which is subsequently marked-to-market to reflect the current market
value. If a purchased option expires, the Fund will realize a loss to the extent
of the premium paid. If the Fund enters into a closing sale transaction, a gain
or loss is realized for the difference between the proceeds from the sale and
the
 
                                       88
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
 
cost of the option. If a put option is exercised, the cost of the security or
currency sold upon exercise will be increased by the premium originally paid. If
a call option is exercised, the cost of the security purchased upon exercise
will be increased by the premium originally paid.
 
E. FOREIGN CURRENCY TRANSLATION -- The books and records of the Fund are
maintained in U.S. dollars as follows: (1) the foreign currency market value of
investment securities, other assets and liabilities and forward foreign currency
contracts are translated at the exchange rates prevailing at the end of the
period; and (2) purchases, sales, income and expenses are translated at the
exchange rates prevailing on the respective dates of such transactions. The
resultant exchange gains and losses are included in the Statement of Operations
as realized and unrealized gain/loss on foreign exchange transactions. Pursuant
to U.S. Federal income tax regulations, certain foreign exchange gains/losses
included in realized and unrealized gain/loss are included in or are a reduction
of ordinary income for federal income tax purposes. The Fund does not isolate
that portion of the results of operations arising as a result of changes in the
foreign exchange rates from the changes in the market prices of the securities.
 
F. FORWARD FOREIGN CURRENCY CONTRACTS -- The Fund may enter into forward foreign
currency contracts which are valued daily at the appropriate exchange rates. The
resultant unrealized exchange gains and losses are included in the Statement of
Operations as unrealized gain/loss on foreign exchange transactions. The Fund
records realized gains or losses on delivery of the currency or at the time the
forward contract is extinguished (compensated) by entering into a closing
transaction prior to delivery.
 
G. 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.
 
H. 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
 
                                       89
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
 
reporting purposes but not for tax purposes are reported as dividends in excess
of net investment 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 AND SUB-ADVISORY AGREEMENTS
 
Pursuant to an Investment Management Agreement, the Fund pays the Investment
Manager a management fee, accrued daily and payable monthly, by applying the
following annual rates to the net assets of the Fund determined as of the close
of each business day: 1.0% to the portion of daily net assets not exceeding $1
billion; 0.95% to the portion of daily net assets exceeding $1 billion but not
exceeding $2 billion; and 0.90% to the portion of daily net assets in excess of
$2 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.
 
Under a Sub-Advisory Agreement between the Sub-Adviser and the Investment
Manager, the Sub-Adviser provides the Fund with investment advice and portfolio
management relating to the Fund's investments in securities, subject to the
overall supervision of the Investment Manager. As compensation for its services
provided pursuant to the Sub-Advisory Agreement, the Investment Manager pays the
Sub-Adviser monthly compensation equal to 40% of its monthly compensation.
 
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
 
                                       90
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
 
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 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 $40,157,545 at April 30, 1998.
 
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 six months ended April 30, 1998, 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 six months ended April 30,
1998, it received contingent deferred sales charges from certain redemptions of
the Fund's Class B shares and Class C
 
                                       91
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
 
shares of $1,057,699, and $3,944, respectively and received $23,122 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.
 
4. SECURITY TRANSACTIONS AND TRANSACTIONS WITH AFFILIATES
 
The cost of purchases and proceeds from sales of portfolio securities, excluding
short-term investments, for the six months ended April 30, 1998 aggregated
$226,308,265 and $324,716,616, respectively.
 
For the six months ended April 30, 1998, the Fund incurred $3,477 in brokerage
commissions with affiliates of the Sub-Adviser for portfolio transactions
executed on behalf of the Fund.
 
For the six months ended April 30, 1998, the Fund incurred brokerage commissions
of $8,951 with Morgan Stanley & Co., Inc., an affiliate of the Investment
Manager, for portfolio transactions executed on behalf of the Fund. At April 30,
1998, the Fund's payable for investments purchased included unsettled trades
with Morgan Stanley & Co., Inc., of $192,748.
 
Morgan Stanley Dean Witter Trust FSB, an affiliate of the Investment Manager and
Distributor, is the Fund's transfer agent. At April 30, 1998, the Fund had
transfer agent fees and expenses payable of approximately $289,000.
 
The Fund has an unfunded noncontributory defined benefit pension plan covering
all independent Directors of the Fund who will have served as independent
Directors 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 six months ended April 30, 1998
included in Directors' fees and expenses in the Statement of Operations,
amounted to $1,918. At April 30, 1998, the Fund had an accrued pension liability
of $39,401 which is included in accrued expenses in the Statement of Assets and
Liabilities.
 
                                       92
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
 
5. CAPITAL STOCK
 
Transactions in capital stock were as follows:
 
<TABLE>
<CAPTION>
                                                            FOR THE SIX
                                                           MONTHS ENDED
                                                          APRIL 30, 1998                         FOR THE YEAR
                                                  -------------------------------                   ENDED
                                                                                              OCTOBER 31, 1997*
                                                            (UNAUDITED)                --------------------------------
                                                    SHARES             AMOUNT            SHARES             AMOUNT
                                                  -----------      --------------      -----------      ---------------
<S>                                               <C>              <C>                 <C>              <C>
CLASS A SHARES
Sold.........................................         206,285      $    2,394,173           63,214      $       998,769
Reinvestment of dividends....................           1,152              13,083          --                 --
Redeemed.....................................         (16,364)           (198,320)         (14,820)            (235,608)
                                                  -----------      --------------      -----------      ---------------
Net increase - Class A.......................         191,073           2,208,936           48,394              763,161
                                                  -----------      --------------      -----------      ---------------
 
CLASS B SHARES
Sold.........................................      19,667,769         226,782,835       28,630,560          521,923,627
Reinvestment of dividends....................         840,396           9,572,097        1,228,090           23,456,516
Redeemed.....................................     (27,740,910)       (326,335,838)     (57,878,288)      (1,039,376,437)
                                                  -----------      --------------      -----------      ---------------
Net decrease - Class B.......................      (7,232,745)        (89,980,906)     (28,019,638)        (493,996,294)
                                                  -----------      --------------      -----------      ---------------
 
CLASS C SHARES
Sold.........................................         356,674           3,904,510           76,313            1,169,997
Reinvestment of dividends....................           1,046              11,869          --                 --
Redeemed.....................................        (303,942)         (3,559,600)         (12,460)            (171,011)
                                                  -----------      --------------      -----------      ---------------
Net increase - Class C.......................          53,778             356,779           63,853              998,986
                                                  -----------      --------------      -----------      ---------------
 
CLASS D SHARES
Sold.........................................         130,295           1,510,805            9,137              157,184
Reinvestment of dividends....................             222               2,523          --                 --
Redeemed.....................................          (2,679)            (31,306)         --                 --
                                                  -----------      --------------      -----------      ---------------
Net increase - Class D.......................         127,838           1,482,022            9,137              157,184
                                                  -----------      --------------      -----------      ---------------
Net decrease in Fund.........................      (6,860,056)     $  (85,933,169)     (27,898,254)     $  (492,076,963)
                                                  -----------      --------------      -----------      ---------------
                                                  -----------      --------------      -----------      ---------------
</TABLE>
 
- ---------------------
 
 *   For Class A, C and D shares, for the period July 28, 1997 (issue date)
     through October 31, 1997.
 
                                       93
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
NOTES TO FINANCIAL STATEMENTS APRIL 30, 1998 (UNAUDITED) CONTINUED
 
6. FEDERAL INCOME TAX STATUS
 
At October 31, 1997, the Fund had an approximate net capital loss carryover of
$116,663,000, which may be used to offset future capital gains to the extent
provided by regulations, which is available through October 31 of the following
years:
 
<TABLE>
<CAPTION>
  AMOUNT IN THOUSANDS
- ------------------------
 2003    2004     2005
- ------  -------  -------
<S>     <C>      <C>
$3,193  $15,875  $97,595
- ------  -------  -------
- ------  -------  -------
</TABLE>
 
As of October 31, 1997, the Fund had temporary book/tax differences primarily
attributable to the mark-to-market of passive foreign investment companies and
capital loss deferrals on wash sales.
 
7. PURPOSES OF AND RISKS RELATING TO CERTAIN FINANCIAL INSTRUMENTS
 
The Fund may enter into forward foreign currency contracts ("forward contracts")
to facilitate settlement of foreign currency denominated portfolio transactions
or to manage foreign currency exposure associated with foreign currency
denominated securities.
 
Forward contracts involve elements of market risk in excess of the amounts
reflected in the Statement of Assets and Liabilities. The Fund bears the risk of
an unfavorable change in the foreign exchange rates underlying the forward
contracts. Risks may also arise upon entering into these contracts from the
potential inability of the counterparties to meet the terms of their contracts.
 
At April 30, 1998, there were outstanding forward contracts used to facilitate
settlement of foreign currency denominated portfolio transactions.
 
At April 30, 1998, the Fund's cash balance consisted principally of interest
bearing deposits with Chase Manhattan Bank N.A., the Fund's custodian.
 
8. SUBSEQUENT EVENT
 
In May 1998, the sub-adviser advised the Fund's Board of Directors and the
Investment Manager of its resignation as sub-adviser, effective at the close of
business on October 31, 1998. On June 2, the Board of Directors unanimously
recommended that a new sub-advisory agreement with Morgan Stanley Asset
Management Inc., an affiliate of the Investment Manager, be submitted to
shareholders for approval at a special meeting expected to be held in August
1998.
 
                                       94
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL HIGHLIGHTS
 
Selected ratios and per share data for a share of capital stock outstanding
throughout each period:
 
<TABLE>
<CAPTION>
                   FOR THE
                     SIX
                    MONTHS
                    ENDED
                  APRIL 30,                         FOR THE YEAR ENDED OCTOBER 31
                    1998++       --------------------------------------------------------------------
                  (UNAUDITED)      1997*           1996           1995          1994          1993
- -----------------------------------------------------------------------------------------------------
 
<S>               <C>            <C>            <C>            <C>            <C>           <C>
CLASS B SHARES
 
PER SHARE
OPERATING
PERFORMANCE:
 
Net asset value,
 beginning of
 period.......... $   12.83      $    18.89     $    18.77     $    21.60     $   19.80     $   12.69
                  ----------     ----------     ----------     ----------     ---------     ---------
 
Net investment
 income (loss)...     (0.01)           0.01           0.05           0.08         (0.10)        (0.04)
 
Net realized and
 unrealized gain
 (loss)..........     (1.56)          (5.77)          0.50          (1.94)         2.22          7.15
                  ----------     ----------     ----------     ----------     ---------     ---------
 
Total from
 investment
 operations......     (1.57)          (5.76)          0.55          (1.86)         2.12          7.11
                  ----------     ----------     ----------     ----------     ---------     ---------
 
Less dividends
 and
 distributions
 from:
   Net investment
   income........     (0.19)          (0.30)         (0.43)        --            --            --
   Net realized
   gain..........    --              --             --              (0.97)        (0.32)       --
                  ----------     ----------     ----------     ----------     ---------     ---------
 
Total dividends
 and
 distributions...     (0.19)          (0.30)         (0.43)         (0.97)        (0.32)       --
                  ----------     ----------     ----------     ----------     ---------     ---------
 
Net asset value,
 end of period... $   11.07      $    12.83     $    18.89     $    18.77     $   21.60     $   19.80
                  ----------     ----------     ----------     ----------     ---------     ---------
                  ----------     ----------     ----------     ----------     ---------     ---------
 
TOTAL INVESTMENT
RETURN+..........    (12.25)%(1)     (31.01)%         3.00%         (8.65)%       10.69%        56.13%
 
RATIOS TO AVERAGE
NET ASSETS:
Expenses.........      2.83%(2)        2.44%          2.39%          2.45%         2.41%         2.38%
 
Net investment
 income (loss)...     (0.23)%(2)       0.03%          0.18%          0.35%        (0.70)%       (0.46)%
 
SUPPLEMENTAL DATA:
Net assets, end
 of period, in
 millions........      $562            $744         $1,624         $1,442        $1,571          $694
 
Portfolio
 turnover rate...        38%(1)          42%            49%            50%           35%           30%
 
Average
 commission rate
 paid............   $0.0059         $0.0075        $0.0095             --            --            --
</TABLE>
 
- ---------------------
 
 *   Prior to July 28, 1997, the Fund issued one class of shares. All shares of
     the Fund held prior to that date have been designated Class B 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
                                       95
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL HIGHLIGHTS, CONTINUED
 
<TABLE>
<CAPTION>
                                                                                            FOR THE PERIOD
                                                                          FOR THE SIX       JULY 28,1997*
                                                                          MONTHS ENDED         THROUGH
                                                                        APRIL 30, 1998++     OCTOBER 31,
                                                                          (UNAUDITED)           1997++
- -----------------------------------------------------------------------------------------------------------
<S>                                                                     <C>                <C>
CLASS A SHARES
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 12.86            $ 19.39
                                                                             ------             ------
Net investment income.................................................         0.03            --
Net realized and unrealized loss......................................        (1.56)             (6.53)
                                                                             ------             ------
Total from investment operations......................................        (1.53)             (6.53)
                                                                             ------             ------
Less dividends from net investment income.............................        (0.26)           --
                                                                             ------             ------
Net asset value, end of period........................................      $ 11.07              12.86
                                                                             ------             ------
                                                                             ------             ------
TOTAL INVESTMENT RETURN+..............................................       (11.93)%(1)        (33.68)%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         2.05%(2)           1.92%(2)
Net investment income (loss)..........................................         0.48%(2)          (0.03)%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................       $2,651               $622
Portfolio turnover rate...............................................           38%(1)             42%
Average commission rate paid..........................................      $0.0059            $0.0075
</TABLE>
 
<TABLE>
<S>                                                                     <C>                <C>
CLASS C SHARES
PER SHARE OPERATING PERFORMANCE:
Net asset value, beginning of period..................................      $ 12.83            $ 19.39
                                                                             ------             ------
Net investment loss...................................................        (0.03)             (0.04)
Net realized and unrealized loss......................................        (1.52)             (6.52)
                                                                             ------             ------
Total from investment operations......................................        (1.55)             (6.56)
                                                                             ------             ------
Less dividends from net investment income.............................        (0.23)           --
                                                                             ------             ------
Net asset value, end of period........................................      $ 11.05              12.83
                                                                             ------             ------
                                                                             ------             ------
TOTAL INVESTMENT RETURN+..............................................       (12.11)%(1)        (33.83)%(1)
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         2.83%(2)           2.62%(2)
Net investment loss...................................................        (0.57)%(2)         (0.77)%(2)
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................      $ 1,300            $   819
Portfolio turnover rate...............................................           38%(1)             42%
Average commission rate paid..........................................      $0.0059            $0.0075
</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
                                       96
<PAGE>
DEAN WITTER PACIFIC GROWTH FUND INC.
FINANCIAL HIGHLIGHTS, CONTINUED
 
<TABLE>
<CAPTION>
                                                                                            FOR THE PERIOD
                                                                          FOR THE SIX       JULY 28, 1997*
                                                                          MONTHS ENDED     THROUGH OCTOBER
                                                                        APRIL 30, 1998++      31, 1997++
- -----------------------------------------------------------------------------------------------------------
                                                                          (unaudited)
 
<S>                                                                     <C>                <C>
CLASS D SHARES
 
PER SHARE OPERATING PERFORMANCE:
 
Net asset value, beginning of period..................................      $ 12.86            $ 19.39
                                                                             ------             ------
 
Net investment income.................................................         0.02               0.02
 
Net realized and unrealized loss......................................        (1.53)             (6.55)
                                                                             ------             ------
 
Total from investment operations......................................        (1.51)             (6.53)
                                                                             ------             ------
 
Less dividends from net investment income.............................        (0.27)           --
                                                                             ------             ------
 
Net asset value, end of period........................................      $ 11.08            $ 12.86
                                                                             ------             ------
                                                                             ------             ------
 
TOTAL INVESTMENT RETURN+..............................................       (11.79)%(1)        (33.68)%(1)
 
RATIOS TO AVERAGE NET ASSETS:
Expenses..............................................................         1.84%(2)           1.62%(2)
 
Net investment income.................................................         0.35%(2)           0.42%(2)
 
SUPPLEMENTAL DATA:
Net assets, end of period, in thousands...............................       $1,517               $118
 
Portfolio turnover rate...............................................           38%(1)             42%
 
Average commission rate paid..........................................      $0.0059            $0.0075
</TABLE>
 
- ---------------------
 
 *   The date shares were first issued.
++   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
                                       97


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