MORGAN STANLEY FUND INC
497, 1997-09-04
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<PAGE>
- --------------------------------------------------------------------------------
                              P R O S P E C T U S
 -----------------------------------------------------------------------------
                   MORGAN STANLEY EMERGING MARKETS DEBT FUND
                    MORGAN STANLEY GLOBAL FIXED INCOME FUND
                         MORGAN STANLEY HIGH YIELD FUND
                   MORGAN STANLEY WORLDWIDE HIGH INCOME FUND
                               PORTFOLIOS OF THE
                           MORGAN STANLEY FUND, INC.
                  P.O. BOX 418256, KANSAS CITY, MISSOURI 64141
                      FOR INFORMATION CALL 1-800-282-4404
                               ------------------
 
    Morgan Stanley Fund, Inc. (the "Company") is an open-end management
investment company, or mutual fund, which consists of twenty-two diversified and
non-diversified investment portfolios (each, a "Fund," and together, the
"Funds"). This prospectus (the "Prospectus") describes the Class A, Class B and
Class C shares of the four Funds listed above. The Company is designed to make
available to retail investors the expertise of Morgan Stanley Asset Management
Inc., the investment adviser (the "Adviser") and administrator (the
"Administrator") to the Funds. Shares are available through Van Kampen American
Capital Distributors, Inc. ("VKAC Distributors," or the "Distributor"), and
investment dealers, banks and financial services firms that provide
distribution, administrative or shareholder services ("Participating Dealers").
 
    THE MORGAN STANLEY EMERGING MARKETS DEBT FUND, MORGAN STANLEY HIGH YIELD
FUND AND MORGAN STANLEY WORLDWIDE HIGH INCOME FUND NORMALLY INVEST BETWEEN 80%
AND 100% OF THEIR RESPECTIVE TOTAL ASSETS IN LOWER RATED AND UNRATED BONDS,
COMMONLY REFERRED TO AS "JUNK BONDS." BONDS OF THIS TYPE ARE SUBJECT TO GREATER
RISKS THAN THOSE INVOLVED IN HIGHER RATED BONDS, INCLUDING THE RISK OF DEFAULT.
INVESTORS SHOULD CAREFULLY ASSESS THE RISKS ASSOCIATED WITH AN INVESTMENT IN
THESE FUNDS. SEE "ADDITIONAL INVESTMENT INFORMATION -- LOWER RATED AND UNRATED
DEBT SECURITIES."
 
    The Morgan Stanley Worldwide High Income Fund and Global Fixed Income Fund
may invest in equity securities of Russian companies. Russia's system of share
registration and custody involves certain risks of loss that are not normally
associated with investments in other securities markets. See "Additional
Investment Information -- Russian Securities Transactions."
 
    This Prospectus is designed to set forth concisely the information about the
Funds that a prospective investor should know before investing and it should be
retained for future reference. The Company offers other Funds which are
described in other prospectuses and under "Prospectus Summary" below. The
Company currently offers the following Funds: (i) GLOBAL AND INTERNATIONAL
EQUITY -- Morgan Stanley Asian Growth, Morgan Stanley Emerging Markets, Morgan
Stanley Global Equity, Morgan Stanley Global Equity Allocation, Morgan Stanley
International Magnum and Morgan Stanley Latin American Funds; (ii) U.S. EQUITY
- -- Morgan Stanley Aggressive Equity, Morgan Stanley American Value, Morgan
Stanley Equity Growth, Morgan Stanley Mid Cap Growth, Morgan Stanley U.S. Real
Estate and Morgan Stanley Value Funds; (iii) GLOBAL FIXED INCOME -- Morgan
Stanley Emerging Markets Debt, Morgan Stanley Global Fixed Income, Morgan
Stanley High Yield and Morgan Stanley Worldwide High Income Funds; and (iv)
MONEY MARKET -- Morgan Stanley Government Obligations Money Market and Morgan
Stanley Money Market Funds. Additional information about the Company is
contained in a "Statement of Additional Information," dated January 1, 1997,
which is incorporated herein by reference. The Statement of Additional
Information and the prospectuses pertaining to the other Funds of the Company
are available upon request and without charge by writing or calling the Company
at the address and telephone number set forth above.
 
   THE COMPANY'S SHARES ARE NOT OBLIGATIONS, DEPOSITS OR ACCOUNTS OF, OR
   ENDORSED OR GUARANTEED BY, ANY BANK OR DEPOSITORY INSTITUTION, OR ANY
   AFFILIATES OR CORRESPONDENTS THEREOF. THE COMPANY'S SHARES ARE NOT FEDERALLY
   INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE
   BOARD OR ANY OTHER AGENCY. SHARES OF THE COMPANY INVOLVE INVESTMENT RISKS,
   INCLUDING THE POSSIBLE LOSS OF PRINCIPAL.
 
    THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
    EXCHANGE COMMISSION, NOR HAS THE SECURITIES AND EXCHANGE COMMISSION PASSED
    UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE
    CONTRARY IS A CRIMINAL OFFENSE.
 
                 THE DATE OF THIS PROSPECTUS IS JANUARY 2, 1997
                     AS SUPPLEMENTED THROUGH JUNE 19, 1997.
<PAGE>
                                 FUND EXPENSES
 
    The following table illustrates all expenses and fees that a shareholder of
a Fund may incur:
 
<TABLE>
<CAPTION>
                                                              GLOBAL                  WORLDWIDE
                                                EMERGING      FIXED                      HIGH
                                                MARKETS       INCOME     HIGH YIELD     INCOME
SHAREHOLDER TRANSACTION EXPENSES               DEBT FUND       FUND         FUND         FUND
- ---------------------------------------------  ----------   ----------   ----------   ----------
<S>                                            <C>          <C>          <C>          <C>
Maximum Sales Load Imposed on Purchases (as a
 percentage of offering price)
    Class A..................................    4.75%(1)     4.75%(1)     4.75%(1)     4.75%(1)
    Class B..................................     None         None         None         None
    Class C..................................     None         None         None         None
Maximum Deferred Sales Load (as a percentage
 of the lesser of initial purchase price or
 current market value)
    Class A
      For Purchases up to $999,999...........     None         None         None         None
      For Purchases of $1,000,000 or more....    1.00%(2)     1.00%(2)     1.00%(2)     1.00%(2)
    Class B..................................    4.00%(3)     4.00%(3)     4.00%(3)     4.00%(3)
    Class C..................................    1.00%(4)     1.00%(4)     1.00%(4)     1.00%(4)
Maximum Sales Load Imposed on Reinvested
 Dividends
    Class A..................................     None         None         None         None
    Class B..................................     None         None         None         None
    Class C..................................     None         None         None         None
Redemption Fees
    Class A..................................     None         None         None         None
    Class B..................................     None         None         None         None
    Class C..................................     None         None         None         None
Exchange Fees
    Class A..................................     None         None         None         None
    Class B..................................     None         None         None         None
    Class C..................................     None         None         None         None
</TABLE>
 
- ------------------
(1) Percentage shown is the maximum sales load. Certain large purchases may be
    subject to a reduced sales load.
 
(2) Purchases of Class A shares of the Funds listed above which, when combined
    with the net asset value of the purchaser's existing investments in Class A
    shares of the Funds, aggregate $1 million or more are not subject to a sales
    load (an "initial sales charge"). A contingent deferred sales charge
    ("CDSC") of 1.00% will be imposed, however, on shares from any such purchase
    that are redeemed within one year following such purchase. Any such CDSC
    will be paid to the Distributor. Certain other purchases are not subject to
    an initial sales charge. See "Purchase of Shares."
 
(3) Percentage shown is the maximum CDSC. Purchases of Class B shares of the
    Funds listed above are subject to a maximum CDSC of 4.00% which decreases in
    steps to 0% after five years. See "Purchase of Class B Shares." Any such
    CDSC will be paid to the Distributor.
 
(4) Purchases of Class C shares of the Funds listed above are subject to a CDSC
    of 1.00% for redemptions made within one year of purchase. Any such CDSC
    will be paid to the Distributor.
 
                                       2
<PAGE>
 
<TABLE>
<CAPTION>
                                                              GLOBAL                  WORLDWIDE
ANNUAL FUND OPERATING EXPENSES                  EMERGING      FIXED                      HIGH
                                                MARKETS       INCOME     HIGH YIELD     INCOME
(AS A PERCENTAGE OF AVERAGE NET ASSETS)        DEBT FUND       FUND         FUND         FUND
                                               ----------   ----------   ----------   ----------
<S>                                            <C>          <C>          <C>          <C>
Investment Advisory Fee (after expense
 reimbursement and/or fee waiver) (5)
    Class A..................................    1.25%        0.04%        0.42%        0.61%
    Class B..................................    1.25%        0.04%        0.42%        0.61%
    Class C..................................    1.25%        0.04%        0.42%        0.61%
12b-1/Service Fees
    Class A (6)..............................    0.25%        0.25%        0.25%        0.25%
    Class B (6)..............................    1.00%        1.00%        1.00%        1.00%
    Class C (6)..............................    1.00%        1.00%        1.00%        1.00%
Other Expenses (after expense reimbursement
 and/or fee waiver) (5)
    Class A..................................    0.55%        1.16%        0.58%        0.69%
    Class B..................................    0.55%        1.16%        0.58%        0.69%
    Class C..................................    0.55%        1.16%        0.58%        0.69%
Total Operating Expenses (after expense
 reimbursement and/or fee waiver) (5)
    Class A..................................    2.05%        1.45%        1.25%        1.55%
    Class B..................................    2.80%        2.20%        2.00%        2.30%
    Class C..................................    2.80%        2.20%        2.00%        2.30%
</TABLE>
 
- ------------------
(5) The Adviser has agreed to waive its advisory fees and/or to reimburse
    expenses of the Funds, if necessary, if such fees would cause the total
    annual operating expenses of the Funds, as a percentage of average daily net
    assets, to exceed the percentages set forth in the table above. The
    following sets forth, for each Fund investment advisory fees and expected
    total operating expenses absent fee waivers and/or expense reimbursements.
 
<TABLE>
<CAPTION>
                                                              GLOBAL                  WORLDWIDE
                                                EMERGING      FIXED                      HIGH
                                                MARKETS       INCOME     HIGH YIELD     INCOME
                                               DEBT FUND       FUND         FUND         FUND
                                               ----------   ----------   ----------   ----------
<S>                                            <C>          <C>          <C>          <C>
Total Operating Expenses
    Class A..................................    2.05%        2.16%        1.58%        1.69%
    Class B..................................    2.80%        3.57%        2.33%        2.47%
    Class C..................................    2.80%        2.87%        2.33%        2.44%
Investment Advisory Fees
    (All Classes)............................    1.25%        0.75%        0.75%        0.75%
</TABLE>
 
   The Adviser reserves the right to terminate any of its fee waivers and/or
   expense reimbursements at any time in its sole discretion. For further
   information on Fund expenses, see "Management of the Company."
 
(6) Of the 12b-1/Service fees for the Class A shares, 0.25% represents a
    shareholder services fee, and for the Class B shares and the Class C shares,
    0.75% represents a distribution fee and 0.25% represents a shareholder
    services fee.
 
    The purpose of the above table is to assist the investor in understanding
the various expenses that an investor in the Fund will bear directly or
indirectly. The expenses and fees for the Global Fixed Income and Worldwide High
Income Funds are based on actual figures for the period ended June 30, 1996. The
expenses and fees for the Emerging Markets Debt and High Yield Funds are based
on estimates. For purposes of calculating the estimated expenses and fees set
forth above, the table assumes that a Fund's average daily net assets will be
$50,000,000. Due to the continuous nature of Rule 12b-1 fees, long-term
shareholders may pay more than the equivalent of the maximum front-end sales
charges otherwise permitted by the Conduct Rules of the National Association of
Securities Dealers, Inc. ("NASD").
 
                                       3
<PAGE>
    The following examples illustrate the expenses that you would pay on a
$1,000 investment, assuming a 5% annual rate of return and redemption at the end
of each time period as indicated, in (i) Class A shares of each listed Fund,
including the maximum 4.75% sales charge, (ii) Class B shares of each such Fund,
which have a CDSC, but no initial sales charge and (iii) Class C shares of each
such Fund, which have a CDSC, but no initial sales charge.
 
<TABLE>
<CAPTION>
                                                                        GLOBAL                  WORLDWIDE
                                                          EMERGING      FIXED                      HIGH
                                                          MARKETS       INCOME     HIGH YIELD     INCOME
                                                         DEBT FUND       FUND         FUND         FUND
                                                         ----------   ----------   ----------   ----------
<S>                                                      <C>          <C>          <C>          <C>
Class A shares
 (If it is assumed there are no redemptions, the
 expenses are the same.)
    1 Year.............................................  $   67(1)    $   62(1)    $   60(1)    $   63(1)
    3 Years............................................     109           91           85           94
    5 Years............................................      *           123           *           128
    10 Years...........................................      *           213           *           223
Class B shares
 (Assuming complete redemption at end of period)
    1 Year.............................................      68           62           60           63
    3 Years............................................     117           99           93          102
    5 Years............................................      *           133           *           138
    10 Years (2).......................................      *           235           *           246
 (Assuming no redemption)
    1 Year.............................................      28           22           20           23
    3 Years............................................      87           69           63           72
    5 Years............................................      *           118           *           123
    10 Years (2).......................................      *           235           *           246
Class C shares
 (Assuming complete redemption immediately prior
 to the end of period)
    1 Year.............................................      38           32           30           33
    3 Years............................................      87           69           63           72
    5 Years............................................      *           118           *           123
    10 Years...........................................      *           253           *           264
Class C shares
 (Assuming no redemption)
    1 Year.............................................      28           22           20           23
    3 Years............................................      87           69           63           72
    5 Years............................................      *           118           *           123
    10 Years...........................................      *           253           *           264
</TABLE>
 
- ------------------
 * Because the Emerging Markets Debt Fund and High Yield Fund were either not
   operational or had just recently become operational as of the date of this
   Prospectus, the Funds have not projected expenses beyond the three-year
   period shown.
 
(1) Certain large purchases may be subject to a reduced sales load. Purchases of
    Class A shares of the Funds listed above which, when combined with the net
    asset value of the purchaser's existing investments in Class A shares of the
    Funds, aggregate $1 million or more are not subject to an initial sales
    charge. A CDSC of 1.00% will be imposed, however, on shares from any such
    purchase that are redeemed within one year following such purchase.
 
(2) Class B shares automatically convert to Class A shares after eight years.
 
    THE FOREGOING EXAMPLES SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN
THOSE SHOWN. The Adviser in its discretion may terminate voluntary fee waivers
and/or reimbursements at any time. Absent the waiver of fees or reimbursement of
expenses, the amounts in the examples above would be greater.
 
                                       4
<PAGE>
                              FINANCIAL HIGHLIGHTS
 
    The following tables provide financial highlights for the Class A, Class B
and Class C shares of the Global Fixed Income, High Yield and Worldwide High
Income Funds for each of the respective periods presented. The audited financial
highlights are part of the Company's financial statements, which appear in the
Company's  June 30, 1996 Annual Report to Shareholders. The financial statements
are included in the Funds' Statement of Additional Information. The foregoing
Funds' financial highlights for each of the periods presented have been audited
by Price Waterhouse LLP, whose report thereon (which was unqualified) is also
included in the Statement of Additional Information. Additional performance
information about the Company is contained in the Company's Annual Report. The
Annual Report and the financial statements contained therein, along with the
Statement of Additional Information, are available at no cost from the Company
at the address and telephone number noted on the cover page of this Prospectus.
The following information should be read in conjunction with the financial
statements and notes thereto. Financial highlights are not presented for the
Emerging Markets Debt Fund because it had not commenced operations as of June
30, 1996.
 
                                       5
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                            GLOBAL FIXED INCOME FUND
<TABLE>
<CAPTION>
                                                               CLASS A                          CLASS B+
                                          --------------------------------------------------   ----------
                                          JANUARY 4,                                            AUGUST 1,
                                               1993*    YEAR ENDED   YEAR ENDED   YEAR ENDED         1995
                                             TO JUNE      JUNE 30,     JUNE 30,     JUNE 30,      TO JUNE
SELECTED PER SHARE DATA AND RATIOS          30, 1993          1994         1995         1996     30, 1996
<S>                                       <C>           <C>          <C>          <C>          <C>
- ---------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF PERIOD....    $  10.00      $  10.55     $   9.53     $  10.23     $  10.24
                                          ----------    ----------   ----------   ----------   ----------
INCOME FROM INVESTMENT OPERATIONS
  Net Investment Income.................        0.25          0.52         0.56         0.53         0.64
  Net Realized and Unrealized Gain
   (Loss)...............................        0.55         (0.42)        0.50        (0.01)       (0.26)
                                          ----------    ----------   ----------   ----------   ----------
  Total From Investment Operations......        0.80          0.10         1.06         0.52         0.38
                                          ----------    ----------   ----------   ----------   ----------
DISTRIBUTIONS
  Net Investment Income.................       (0.25)        (0.50)       (0.36)       (0.79)       (0.69)
  In Excess of Net Investment Income....                     (0.12)                    (0.02)       (0.02)
  Net Realized Gain.....................                     (0.47)
  In Excess of Realized Gain............                     (0.03)
                                          ----------    ----------   ----------   ----------   ----------
  Total Distributions...................       (0.25)        (1.12)       (0.36)       (0.81)       (0.71)
                                          ----------    ----------   ----------   ----------   ----------
NET ASSET VALUE, END OF PERIOD..........    $  10.55      $   9.53     $  10.23     $   9.94     $   9.91
                                          ----------    ----------   ----------   ----------   ----------
                                          ----------    ----------   ----------   ----------   ----------
TOTAL RETURN (1)........................        8.02%         0.41%       11.41%        5.20%        3.76%
                                          ----------    ----------   ----------   ----------   ----------
                                          ----------    ----------   ----------   ----------   ----------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period (000s)........    $  6,633      $ 10,369     $ 11,092     $  7,432     $  1,440
Ratio of Expenses to Average Net
 Assets (2).............................        1.45%**       1.45%        1.45%        1.45%        2.20%**
Ratio of Net Investment Income to
 Average Net Assets (2).................        5.00%**       4.70%        5.84%        5.02%        3.38%**
Portfolio Turnover Rate.................          55%          168%         169%         223%         223%
- ---------------------------------------------------------------------------------------------------------
Effect of Voluntary Expense
 Limitation During the Period
 
  Per Share Benefit to Net Investment
   Income...............................    $   0.07      $   0.11     $   0.07     $   0.07     $   0.12
Ratios Before Expense Limitation:
  Expenses to Average Net Assets........        2.88%**       2.48%        2.22%        2.16%        3.57%**
  Net Investment Income to Average Net
   Assets...............................        3.57%**       3.67%        5.07%        4.31%        2.01%**
- ---------------------------------------------------------------------------------------------------------
 
<CAPTION>
                                                               CLASS C
                                          --------------------------------------------------
                                          JANUARY 4,
                                               1993*    YEAR ENDED   YEAR ENDED   YEAR ENDED
                                             TO JUNE      JUNE 30,     JUNE 30,     JUNE 30,
SELECTED PER SHARE DATA AND RATIOS          30, 1993          1994         1995         1996
<S>                                       <C>           <C>          <C>          <C>
- ----------------------------------------  --------------------------------------------------
NET ASSET VALUE, BEGINNING OF PERIOD....    $  10.00      $  10.56     $   9.54     $  10.20
                                          ----------    ----------   ----------   ----------
INCOME FROM INVESTMENT OPERATIONS
  Net Investment Income.................        0.21          0.43         0.49         0.37
  Net Realized and Unrealized Gain
   (Loss)...............................        0.55         (0.40)        0.47         0.08
                                          ----------    ----------   ----------   ----------
  Total From Investment Operations......        0.76          0.03         0.96         0.45
                                          ----------    ----------   ----------   ----------
DISTRIBUTIONS
  Net Investment Income.................       (0.20)        (0.44)       (0.30)       (0.73)
  In Excess of Net Investment Income....                     (0.11)                    (0.02)
  Net Realized Gain.....................                     (0.47)
  In Excess of Realized Gain............                     (0.03)
                                          ----------    ----------   ----------   ----------
  Total Distributions...................       (0.20)        (1.05)       (0.30)       (0.75)
                                          ----------    ----------   ----------   ----------
NET ASSET VALUE, END OF PERIOD..........    $  10.56      $   9.54     $  10.20     $   9.90
                                          ----------    ----------   ----------   ----------
                                          ----------    ----------   ----------   ----------
TOTAL RETURN (1)........................        7.61%        (0.25)%      10.24%        4.47%
                                          ----------    ----------   ----------   ----------
                                          ----------    ----------   ----------   ----------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period (000s)........    $  6,120      $  5,407     $  5,965     $  2,844
Ratio of Expenses to Average Net
 Assets (2).............................        2.20%**       2.20%        2.20%        2.20%
Ratio of Net Investment Income to
 Average Net Assets (2).................        4.25%**       3.95%        5.09%        4.35%
Portfolio Turnover Rate.................          55%          168%         169%         223%
- ---------------------------------------------------------------------------------------------------------
Effect of Voluntary Expense
 Limitation During the Period
  Per Share Benefit to Net Investment
   Income...............................    $   0.07      $   0.12     $   0.08     $   0.06
Ratios Before Expense Limitation:
  Expenses to Average Net Assets........        3.63%**       3.29%        2.97%        2.87%
  Net Investment Income to Average Net
   Assets...............................        2.82%**       2.86%        4.32%        3.68%
- ---------------------------------------------------------------------------------------------------------
</TABLE>
 
 * Commencement of operations.
 ** Annualized.
 
 + The Global Fixed Income Fund began offering the current Class B shares on
   August 1, 1995.
 
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total returns for periods of less than one year are not annualized.
 
(2) Under the terms of an investment advisory agreement, the Adviser is entitled
    to receive an investment advisory fee calculated at an annual rate of 0.75%
    of the average daily net assets of the Global Fixed Income Fund. The Adviser
    has agreed to waive a portion of this fee and/or reimburse expenses of the
    Global Fixed Income Fund to the extent that the total operating expenses of
    the Fund exceed 1.45% of the average daily net assets relating to the Class
    A shares and 2.20% of the average daily net assets relating to the Class B
    and Class C shares. For the fiscal periods ended June 30, 1994, June 30,
    1995 and June 30, 1996, the Adviser waived advisory fees and/or reimbursed
    expenses totaling approximately $150,000, $121,000 and $112,000,
    respectively, for the Global Fixed Income Fund.
 
                                       6
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                                HIGH YIELD FUND
 
<TABLE>
<CAPTION>
                                                                      CLASS A        CLASS B+         CLASS C
                                                                   -------------   -------------   -------------
                                                                    MAY 1, 1996*    MAY 1, 1996*    MAY 1, 1996*
                                                                     TO JUNE 30,     TO JUNE 30,     TO JUNE 30,
SELECTED PER SHARE DATA AND RATIOS                                          1996            1996            1996
<S>                                                                <C>             <C>             <C>
- ----------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF PERIOD.............................     $12.00          $12.00          $12.00
INCOME FROM INVESTMENT OPERATIONS
  Net Investment Income..........................................       0.13            0.12            0.12
  Net Realized and Unrealized Loss...............................      (0.09)          (0.09)          (0.09)
                                                                      ------          ------          ------
  Total From Investment Operations...............................       0.04            0.03            0.03
                                                                      ------          ------          ------
DISTRIBUTION:
  Net Investment Income..........................................      (0.12)          (0.10)          (0.10)
                                                                      ------          ------          ------
NET ASSET VALUE, END OF PERIOD...................................     $11.92          $11.93          $11.93
                                                                      ------          ------          ------
TOTAL RETURN (1).................................................       0.29%           0.21%           0.21%
                                                                      ------          ------          ------
                                                                      ------          ------          ------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period (000's)................................     $3,907          $3,421          $3,316
Ratio of Expenses to Average Net Assets..........................       1.25%**         2.00%**         2.00%**
Ratio of Net Investment Income to Average Net Assets.............       6.85%**         6.08%**         6.07%**
Portfolio Turnover Rate..........................................         10%             10%             10%
- ----------------------------------------------------------------------------------------------------------------
Effect of Voluntary Expense Limitation During the Period
  Per Share Benefit to Net Investment Income.....................     $ 0.04          $ 0.04          $ 0.04
Ratios Before Expense Limitation:
  Expenses to Average Net Assets.................................       3.51%**         4.25%**         4.25%**
  Net Investment Income to Average Net Assets....................       4.59%**         3.83%**         3.82%**
- ----------------------------------------------------------------------------------------------------------------
</TABLE>
 
 * Commencement of operations.
 ** Annualized.
 + The Global Fixed Income Fund began offering the current Class B shares on
   August 1, 1995.
 
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total returns for periods of less than one year are not annualized.
 
(2) Under the terms of an investment advisory agreement, the Adviser is entitled
    to receive an investment advisory fee calculated at an annual rate of 0.75%
    of the average daily net assets of the High Yield Fund. The Adviser has
    agreed to waive a portion of this fee and/or reimburse expenses of the High
    Yield Fund to the extent that the total operating expenses of the Fund
    exceed 1.25% of the average daily net assets relating to the Class A shares
    and 2.00% of the average daily net assets relating to the Class B and Class
    C shares. For the fiscal period ended June 30, 1996, the Adviser waived
    advisory fees and/or reimbursed expenses totaling approximately $38,000 for
    the High Yield Fund.
 
                                       7
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                           WORLDWIDE HIGH INCOME FUND
 
<TABLE>
<CAPTION>
                                                 CLASS A                                                   CLASS C
                                  -------------------------------------      CLASS B+       -------------------------------------
                                   APRIL 21,                               -------------     APRIL 21,
                                       1994*    YEAR ENDED   YEAR ENDED        AUGUST 1,         1994*    YEAR ENDED   YEAR ENDED
SELECTED PER SHARE DATA AND          TO JUNE      JUNE 30,     JUNE 30,          1995 TO       TO JUNE      JUNE 30,     JUNE 30,
 RATIOS                             30, 1994          1995         1996    JUNE 30, 1996      30, 1994          1995         1996
<S>                               <C>           <C>          <C>           <C>              <C>           <C>          <C>
- ---------------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF
 PERIOD.........................    $  12.00     $   12.17    $   11.57       $    11.63     $   12.00     $   12.16    $   11.58
INCOME FROM INVESTMENT
 OPERATIONS
  Net Investment Income.........        0.18          1.26         1.36             1.18          0.17          1.17         1.30
  Net Realized and Unrealized
   Gain (Loss)..................        0.16         (0.52)        0.80             0.72          0.15         (0.50)        0.77
                                  ----------    ----------   ----------    -------------    ----------    ----------   ----------
  Total From Investment
   Operations...................        0.34          0.74         2.16             1.90          0.32          0.67         2.07
                                  ----------    ----------   ----------    -------------    ----------    ----------   ----------
DISTRIBUTIONS
  Net Investment Income.........       (0.17)        (1.22)       (1.26)           (1.09)        (0.16)        (1.13)       (1.20)
  Net Realized Gain.............                     (0.12)                                                    (0.12)
                                  ----------    ----------   ----------    -------------    ----------    ----------   ----------
  Total Distributions...........       (0.17)        (1.34)       (1.26)           (1.09)        (0.16)        (1.25)       (1.20)
                                  ----------    ----------   ----------    -------------    ----------    ----------   ----------
NET ASSET VALUE, END OF
 PERIOD.........................    $  12.17     $   11.57    $   12.47       $    12.44     $   12.16     $   11.58    $   12.45
                                  ----------    ----------   ----------    -------------    ----------    ----------   ----------
                                  ----------    ----------   ----------    -------------    ----------    ----------   ----------
TOTAL RETURN (1)................        2.86%         6.87%       19.61%           17.07%         2.62%         6.20%       18.71%
                                  ----------    ----------   ----------    -------------    ----------    ----------   ----------
                                  ----------    ----------   ----------    -------------    ----------    ----------   ----------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period
 (000s).........................    $  6,857     $  14,819    $  41,493           26,174     $   6,081     $  11,880    $  28,094
Ratio of Expenses to Average Net
 Assets (2).....................        1.55%**       1.55%        1.55%            2.30%**       2.30%**       2.30%        2.30%
Ratio of Net Investment Income
 to Average Net Assets (2)......        8.29%**      11.53%       11.95%           12.06%**       7.54%**      10.72%       11.40%
Portfolio Turnover Rate.........          19%          178%         220%             220%           19%          178%         220%
- ---------------------------------------------------------------------------------------------------------------------------------
Effect of Voluntary Expense
 Limitation During the Period
  Per Share Benefit to Net
   Investment Income............    $   0.02     $    0.05    $    0.02       $     0.02     $    0.06     $    0.05    $    0.04
Ratios Before Expense
 Limitation:
  Expenses to Average Net
   Assets.......................        3.23%**       1.97%        1.69%            2.47%**       4.00%**       2.74%        2.44%
  Net Investment Income to
   Average Net Assets...........        6.61%**      11.11%       11.81%           11.89%**       5.84%**      10.28%       11.26%
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
  * Commencement of operations.
 
 ** Annualized.
 
  + The Worldwide High Income Fund began offering the current Class B shares on
    August 1, 1995.
 
 (1) Total return is calculated exclusive of sales charges or deferred sales
     charges. Total returns for periods of less than one year are not
     annualized.
 
 (2) Under the terms of an investment advisory agreement, the Adviser is
     entitled to receive an investment advisory fee calculated at an annual rate
     of 0.75% of the average daily net assets of the Worldwide High Income Fund.
     The Adviser has agreed to waive a portion of this fee and/or reimburse
     expenses of the Worldwide High Income Fund to the extent that the total
     operating expenses of the Fund exceed 1.55% of the average daily net assets
     relating to the Class A shares and 2.30% of the average daily net assets
     relating to the Class B and Class C shares. For the fiscal periods ended
     June 30, 1994, June 30, 1995 and June 30, 1996, the Adviser waived advisory
     fees and/or reimbursed expenses totaling approximately $39,000, $88,000 and
     $97,000, respectively, for the Worldwide High Income Fund.
 
                                       8
<PAGE>
                               PROSPECTUS SUMMARY
 
THE COMPANY
 
    The Company currently consists of twenty-two portfolios which are designed
to offer investors a range of investment choices with Morgan Stanley Asset
Management Inc. ("MSAM") and its affiliate, Miller Anderson & Sherrerd, LLP
("MAS"), providing services as Advisers and Administrators and Van Kampen
American Capital Distributors, Inc. ("VKAC Distributors") providing services as
Distributor. MAS serves as the Adviser and Administrator for the Mid Cap Growth
Fund and the Value Fund, which are described in a separate prospectus. MSAM
serves as the Adviser and Administrator for all of the other Funds listed below.
Each Fund has its own investment objective and policies designed to meet its
specific goals. For ease of reference the words "Morgan Stanley," which begin
the name of each Fund, have not been included in the Funds named below. The
investment objective of each Fund described in this Prospectus is as follows:
 
    - The EMERGING MARKETS DEBT FUND seeks high total return by investing
      primarily in debt securities of government, government-related and
      corporate issuers located in emerging countries.
 
    - The GLOBAL FIXED INCOME FUND seeks to produce an attractive real rate of
      return while preserving capital by investing in fixed income securities of
      issuers throughout the world, including U.S. issuers.
 
    - The HIGH YIELD FUND seeks to maximize total return by investing in a
      diversified portfolio of high yield income securities that offer a yield
      above that generally available on debt securities in the four highest
      rating categories of the recognized rating services.
 
    - The WORLDWIDE HIGH INCOME FUND seeks high current income consistent with
      relative stability of principal and, secondarily, capital appreciation, by
      investing primarily in a portfolio of high yielding fixed income
      securities of issuers located throughout the world.
 
    The other Funds are described in other prospectuses which may be obtained
from the Company at the address and telephone number noted on the cover page of
this Prospectus. The investment objectives of the other Funds are listed below:
 
GLOBAL AND INTERNATIONAL EQUITY FUNDS:
 
    - The ASIAN GROWTH FUND seeks long-term capital appreciation through
      investment primarily in equity securities of Asian issuers, excluding
      Japan.
 
    - The EMERGING MARKETS FUND seeks long-term capital appreciation by
      investing primarily in equity securities of emerging country issuers.
 
    - The EUROPEAN EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of European issuers.
 
    - The GLOBAL EQUITY ALLOCATION FUND seeks long-term capital appreciation by
      investing in equity securities of U.S. and non-U.S. issuers in accordance
      with country weightings determined by the Adviser and with stock selection
      within each country designed to replicate a broad market index.
 
                                       9
<PAGE>
    - The GLOBAL EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of issuers located throughout the world,
      including U.S. issuers.
 
    - The INTERNATIONAL MAGNUM FUND seeks long-term capital appreciation by
      investing primarily in equity securities of non-U.S. issuers in accordance
      with EAFE country weightings determined by the Adviser.
 
    - The JAPANESE EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of Japanese issuers.
 
    - The LATIN AMERICAN FUND seeks long-term capital appreciation by investing
      primarily in equity securities of Latin American issuers and investing in
      debt securities issued or guaranteed by Latin American governments or
      governmental entities.
 
U.S. EQUITY FUNDS:
 
    - The AGGRESSIVE EQUITY FUND seeks capital appreciation by investing
      primarily in a non-diversified portfolio of corporate equity and
      equity-linked securities.
 
    - The AMERICAN VALUE FUND seeks high total return by investing in
      undervalued equity securities of small-to medium-sized corporations.
 
    - The EQUITY GROWTH FUND seeks long-term capital appreciation by investing
      in growth-oriented equity securities of medium and large capitalization
      companies.
 
    - The GROWTH AND INCOME FUND seeks capital appreciation and current income
      by investing primarily in equity and equity-linked securities.
 
    - The MID CAP GROWTH FUND seeks long-term capital growth by investing
      primarily in common stocks and other equity securities of smaller and
      medium size companies which are deemed by the Adviser to offer long-term
      growth potential.
 
    - The U.S. REAL ESTATE FUND seeks to provide above-average current income
      and long-term capital appreciation by investing primarily in equity
      securities of companies in the U.S. real estate industry, including real
      estate investment trusts.
 
    - The VALUE FUND seeks to achieve above-average total return over a market
      cycle of three to five years, consistent with reasonable risk, by
      investing primarily in a diversified portfolio of common stocks and other
      equity securities which are deemed by the Adviser to be relatively
      undervalued based on various measures such as price/earnings ratios and
      price/book ratios.
 
MONEY MARKET FUNDS:
 
    - The GOVERNMENT OBLIGATIONS MONEY MARKET FUND seeks to provide as high a
      level of current interest income as is consistent with maintaining
      liquidity and stability of principal.
 
    - The MONEY MARKET FUND seeks to provide as high a level of current interest
      income as is consistent with maintaining liquidity and stability of
      principal.
 
                                       10
<PAGE>
    - The TAX-FREE MONEY MARKET FUND seeks to provide as high a level of current
      interest income exempt from regular federal income taxes as is consistent
      with maintaining liquidity and stability of principal.
 
    THE GROWTH AND INCOME, JAPANESE EQUITY, EUROPEAN EQUITY, EMERGING MARKETS
DEBT, GLOBAL EQUITY, EQUITY GROWTH, MID CAP GROWTH, VALUE AND TAX-FREE MONEY
MARKET FUNDS ARE CURRENTLY NOT BEING OFFERED.
 
INVESTMENT MANAGEMENT
 
    Morgan Stanley Asset Management Inc. ("MSAM," the "Adviser" and the
"Administrator"), which, together with its affiliated asset management companies
had approximately $103.5 billion in assets under management as an investment
manager or as a fiduciary adviser at September 30, 1996, acts as investment
adviser to each of the Funds, except the Mid Cap Growth and Value Funds. See
"Management of the Company -- Investment Adviser" and "-- Administrator." On
October 31, 1996, Morgan Stanley Group Inc. ("MSGI") purchased the parent
company of Van Kampen American Capital, Inc., which in turn is the parent
company of VKAC Distributors. Van Kampen American Capital, Inc. is the fourth
largest non-proprietary mutual fund provider in the United States with
approximately $59 billion in assets under management or supervision as of
September 30, 1996. On May 31, 1997, MSGI and Dean Witter, Discover & Co. merged
to form Morgan Stanley, Dean Witter, Discover & Co. Prior thereto, MSGI was the
parent of the Adviser and the Distributor. The Adviser and the Distributor are
now subsidiaries of Morgan Stanley, Dean Witter, Discover & Co.
 
RISK FACTORS
 
    The investment policies of each Fund entail certain risks and considerations
of which an investor should be aware. The Funds described herein will invest in
securities of foreign issuers, including emerging country securities. Securities
of foreign issuers and, in particular, emerging country securities, are subject
to certain risks not typically associated with domestic securities, including,
among other risks, changes in currency rates and in exchange control
regulations, costs in connection with conversions between various currencies,
limited publicly available information regarding foreign issuers, lack of
uniformity in accounting, auditing and financial standards and requirements,
potential price volatility and lesser liquidity of shares traded on securities
markets, less government supervision and regulation of securities markets,
changes in taxes on income on securities, possible seizure, nationalization or
expropriation of the foreign issuer or foreign deposits, the risk of war and
potentially greater difficulty in obtaining a judgment in a court outside the
United States. The Emerging Markets Debt and Worldwide High Income Funds invest
in securities of issuers located in developing countries and emerging markets,
which may impose greater liquidity risks and other risks not typically
associated with investing in the more established markets of developed
countries. The Emerging Markets Debt and Worldwide High Income Funds'
investments in emerging markets may be in small- to medium-sized companies. The
Funds may also invest in sovereign debt that is considered to be speculative in
nature and involves a high degree of risk. The Funds may invest in forward
foreign currency exchange contracts, and the Emerging Markets Debt and Worldwide
High Income Funds may invest in foreign currency exchange futures and options.
Each Fund may invest in securities that are neither listed on a stock exchange
nor traded over-the-counter, including private placement securities. Such
securities may be less liquid than publicly traded securities. The Emerging
Markets Debt, Worldwide High Income and High Yield Funds may invest in lower
rated and unrated debt securities which are considered speculative with regard
to the payment of interest and return of principal. In addition, the Emerging
Markets Debt and Worldwide High Income Funds may invest in derivatives, which
include options,
 
                                       11
<PAGE>
futures and options on futures. The Emerging Markets Debt and Global Fixed
Income Funds are non-diversified portfolios which may invest a greater portion
of their assets in the securities of a smaller number of issuers and, as a
result, will be subject to a greater risk resulting from such concentration of
its portfolio securities. Each Fund may invest in repurchase agreements, lend
its portfolio securities, purchase securities on a when-issued or delayed
delivery basis, and borrow money in an amount not in excess of 33 1/3% of its
total assets (including the amount borrowed), less all liabilities and
indebtedness other than borrowing. Each of these investment strategies involves
specific risks which are described under "Investment Objectives and Policies"
and "Additional Investment Information" herein and under "Investment Objectives
and Policies" in the Statement of Additional Information.
 
HOW TO INVEST
 
    The Class A, Class B and Class C shares of the Funds are designed to provide
investors a choice of three ways to pay distribution costs. Class A shares of
the Funds are offered at net asset value plus an initial sales charge of up to
4.75% in graduated percentages based on the investor's aggregate investments in
the Funds. Shares of the Class B shares and Class C shares of the Funds are
offered at net asset value. Class B shares are subject to a contingent deferred
sales charge ("CDSC") for redemptions within five years of purchase and are
subject to higher annual distribution-related expenses than the Class A shares.
Class C shares are subject to a CDSC for redemptions within one year of purchase
and are subject to higher annual distribution-related expenses than the Class A
shares. See "Purchase of Shares" for a discussion of reduction of waiver of
sales charges, which are available for certain investors. Share purchases may be
made through VKAC Distributors, through Participating Dealers or by sending
payments directly to the Company. The minimum initial investment is $500 for
each class of a Fund, except that the minimum initial investment amount is
reduced for certain categories of investors. The minimum for subsequent
investments is $25, except that there is no minimum for automatic reinvestment
of dividends and distributions. See "Purchase of Shares."
 
HOW TO REDEEM
 
    Shares of each Fund may be redeemed at any time at the net asset value per
share (less any applicable CDSC) of the Fund next determined after receipt of
the redemption request. The redemption price may be more or less than the
purchase price. See "Redemption of Shares."
 
                                       12
<PAGE>
                       INVESTMENT OBJECTIVES AND POLICIES
 
    The investment objective of each Fund is described below, together with the
policies it employs in its efforts to achieve its objective. Each Fund's
investment objective is a fundamental policy which may not be changed by the
Fund without the approval of a majority of the Fund's outstanding voting
securities. The investment policies described below are not fundamental policies
and may be changed without shareholder approval. There is no assurance that a
Fund will attain its investment objective. For more information about certain
investment practices of the Funds, see "Additional Investment Information" below
and "Investment Objectives and Policies" in the Statement of Additional
Information.
 
THE EMERGING MARKETS DEBT FUND
 
    The investment objective of the Fund is to seek high total return. In
seeking to achieve this objective, the Fund will seek to invest at least 65% of
its total assets in debt securities of government and government-related issuers
located in emerging countries (including participations in loans between
governments and financial institutions), and of entities organized to
restructure outstanding debt of such issuers. In addition, the Fund may invest
up to 35% of its total assets in debt securities of corporate issuers located in
or organized under the laws of emerging countries. As used in this Prospectus,
the term "emerging country" applies to any country which, in the opinion of the
Adviser, is generally considered to be an emerging or developing country by the
international financial community, which includes the International Bank for
Reconstruction and Development (more commonly known as the World Bank) and the
International Finance Corporation. Government, government-related and
restructured debt securities in emerging markets will consist of (i) debt
securities or obligations issued or guaranteed by governments, governmental
agencies or instrumentalities and political subdivisions located in emerging
countries (including participations in loans between governments and financial
institutions), (ii) debt securities or obligations issued by government owned,
controlled or sponsored entities located in emerging countries, and (iii)
interests in issuers organized and operated for the purpose of restructuring the
investment characteristics of instruments issued by any of the entities
described above.
 
    The Adviser intends to invest the Fund's assets in emerging country debt
securities that provide a high level of current income, while at the same time
holding the potential for capital appreciation if the perceived creditworthiness
of the issuer improves due to improving economic, financial, political, social
or other conditions in the country in which the issuer is located. The Fund will
focus its investments on those emerging market countries in which it believes
the economies are developing strongly and in which the markets are becoming more
sophisticated. Initially, the Fund expects that its investments in emerging
country debt securities will be made primarily in some or all of the following
emerging countries:
 
                                       13
<PAGE>
Algeria
Argentina
Brazil
Bulgaria
Chile
China
Colombia
Costa Rica
Czech Republic
Democratic Republic
  of Congo
Dominican Republic
Ecuador
Egypt
Greece
Hungary
India
Indonesia
Ivory Coast
Jamaica
Jordan
Malaysia
Mexico
Morocco
Nicaragua
Nigeria
Pakistan
Panama
Paraguay
Peru
Philippines
Poland
Portugal
Russia
Slovakia
South Africa
Thailand
Trinidad & Tobago
Tunisia
Turkey
Uruguay
Venezuela
 
    In selecting emerging country debt securities for investment by the Fund,
the Adviser will apply a market risk analysis contemplating assessment of
factors such as liquidity, volatility, tax implications, interest rate
sensitivity, counterparty risks and technical market considerations. Currently,
investing in many emerging country securities is not feasible or may involve
unacceptable political risks. As opportunities to invest in debt securities in
other countries develop, the Fund expects to expand and further diversify the
emerging countries in which it invests. While the Fund generally is not
restricted in the portion of its assets which may be invested in a single
country or region, it is anticipated that, under normal conditions, the Fund's
assets will be invested in issuers in at least three countries.
 
    Emerging country debt securities held by the Fund will take the form of
bonds, notes, bills, debentures, convertible securities, warrants, bank debt
obligations, short-term paper, mortgage and other asset-backed securities,
loans, loan participations, loan assignments and interests issued by entities
organized and operated for the purpose of restructuring the investment
characteristics of instruments issued by emerging country issuers. U.S.
Dollar-denominated emerging country debt securities held by the Fund will
generally be listed but not traded on a securities exchange, and non-U.S.
Dollar-denominated securities held by the Fund may or may not be listed or
traded on a securities exchange. Investments in emerging country debt securities
entail special investment risks. The Fund will be subject to no restrictions on
the maturities of the emerging country debt securities it holds; those
maturities may range from overnight to 30 years.
 
    The Fund is not restricted in the portion of its assets which may be
invested in securities denominated in a particular currency and a substantial
portion of the Fund's assets may be invested in non-U.S. Dollar-denominated
securities. The portion of the Fund's assets invested in securities denominated
in currencies other than the U.S. Dollar will vary depending on market
conditions. Although the Fund is permitted to engage in a wide variety of
investment practices designed to hedge against currency exchange rate risks with
respect to its holdings of non-U.S. Dollar-denominated debt securities, the Fund
may be limited in its ability to hedge against these risks.
 
                                       14
<PAGE>
    Emerging country debt securities in which the Fund may invest will be
subject to high risk and will not be required to meet a minimum rating standard
and may not be rated for creditworthiness by any internationally recognized
credit rating organization. The Fund's investments are expected to be rated in
the lower and lowest rating categories of internationally recognized credit
rating organizations or are expected to be unrated securities of comparable
quality. These types of debt obligations are predominantly speculative with
respect to the capacity to pay interest and repay principal in accordance with
their terms and generally involve a greater risk of default and of volatility in
price than securities in higher rating categories.
 
    The Fund is authorized to borrow up to 33 1/3% of its total assets
(including the amount borrowed), less all liabilities and indebtedness other
than the borrowing, for investment purposes to increase the opportunity for
greater return and for payment of dividends. Such borrowings would constitute
leverage, which is a speculative characteristic. Leveraging will magnify
declines as well as increases in the net asset value of the Fund's shares and
increases in the yield on the Fund's investments. Although the Fund is
authorized to borrow, it will do so only when the Adviser believes that
borrowing will benefit the Fund after taking into account considerations such as
the costs of borrowing and the likely investment returns on securities purchased
with borrowed monies. Borrowing by the Fund will create the opportunity for
increased net income but, at the same time, will involve special risk
considerations.
 
    The Fund expects that all of its borrowing will be made on a secured basis.
The Fund's custodian will either segregate the assets securing the borrowing for
the benefit of the lenders or arrangements will be made with a suitable
sub-custodian. If assets used to secure the borrowing decrease in value, the
Fund may be required to pledge additional collateral to the lender in the form
of cash or securities to avoid liquidation of those assets. The Fund may also
enter into reverse repurchase agreements.
 
    The Fund's investments in government, government-related and restructured
debt instruments are subject to special risks, including the issuer's inability
or unwillingness to repay principal and interest, requests to reschedule or
restructure outstanding debt and requests to extend additional loan amounts. The
Fund may have limited recourse in the event of default on such debt instruments.
 
    The Fund may invest in derivatives, when-issued and delayed delivery
securities and non-publicly traded securities, including private placements and
restricted securities. The Fund may also invest in zero coupon, pay-in-kind or
deferred payment securities and in securities that may be collateralized by zero
coupon securities (such as Brady Bonds).
 
    For temporary defensive purposes, the Fund may invest in money market
instruments and short- and medium-term debt securities that the Adviser believes
to be of high quality, or hold cash.
 
    For further information about the foregoing and certain additional
investment practices of the Fund, see "Additional Investment Information" below.
 
THE GLOBAL FIXED INCOME FUND
 
    The investment objective of the Global Fixed Income Fund is to produce an
attractive real rate of return while preserving capital by investing in fixed
income securities of issuers located throughout the world, including U.S.
issuers. The Fund will, under normal market conditions, invest at least 65% of
the value of its total assets in fixed income securities of issuers in at least
three different countries. The Fund seeks to achieve its objective by investing
in United States government securities, foreign government securities,
securities of
 
                                       15
<PAGE>
supranational entities, Eurobonds, corporate bonds and structured investments
with fixed income characteristics, with varying maturities denominated in
various currencies. In selecting portfolio securities, the Adviser evaluates the
currency, market, and individual features of the securities being considered for
investment.
 
    The Adviser seeks to minimize investment risk by investing in a high quality
portfolio of debt securities, the majority of which will be rated in one of the
two highest rating categories by a nationally recognized statistical rating
organization (an "NRSRO") or, if unrated, will be of comparable quality as
determined by the Adviser under the supervision of the Board of Directors. U.S.
Government securities in which the Global Fixed Income Fund may invest include
obligations issued or guaranteed by the U.S. Government, such as U.S. Treasury
securities, as well as those backed by the full faith and credit of the United
States, such as obligations of the Government National Mortgage Association and
The Export-Import Bank. The Fund may also invest in obligations issued or
guaranteed by U.S. Government agencies or instrumentalities where the Fund must
look principally to the issuing or guaranteeing agency for ultimate repayment.
The Fund may invest in obligations issued or guaranteed by foreign governments
and their political subdivisions, authorities, agencies or instrumentalities,
and by supranational entities (such as the World Bank, The European Economic
Community, The Asian Development Bank and the European Coal and Steel
Community). Investment in foreign government securities will be limited to those
of developed nations which the Adviser believes to pose limited credit risk.
These countries currently include Australia, Austria, Belgium, Canada, Denmark,
Finland, France, Germany, Ireland, Italy, Japan, Luxembourg, the Netherlands,
New Zealand, Norway, Spain, Sweden, Switzerland and The United Kingdom.
Corporate and supranational obligations in which the Fund will invest will be
limited to those rated "A" or better by Moody's Investors Service, Inc.
("Moody's"), Standard & Poor's Ratings Group ("Standard & Poor's") or IBCA Ltd.,
or if unrated, of comparable quality as determined by the Adviser under the
supervision of the Company's Board of Directors.
 
    The Adviser's approach to multi-currency, fixed-income management is
strategic and value-based and designed to produce an attractive real rate of
return. The Adviser's assessment of the bond markets and currencies is based on
an analysis of real interest rates. Current nominal yields of securities are
adjusted for inflation prevailing in each currency sector using an analysis of
past and projected inflation rates. The Fund's aim is to invest in bond markets
which offer the most attractive real returns relative to inflation.
 
    Under normal circumstances, the Global Fixed Income Fund will have a neutral
investment position in medium-term securities (i.e., those with a remaining
maturity of between three and seven years) and will respond to changing interest
rate levels by shortening or lengthening portfolio maturity through investment
in longer- or shorter-term instruments. For example, the Fund will respond to
high levels of real interest rates through a lengthening in portfolio maturity.
Current and historical yield spreads among the three main market segments -- the
Government, Foreign and Euro markets -- guide the Adviser's selection of markets
and particular securities within those markets. The analysis of currencies is
made independent of the analysis of markets. Value in foreign exchange is
determined by relative purchasing power parity of a given currency. The Fund
seeks to invest in currencies currently undervalued based on purchasing power
parity. The Adviser analyzes current account and capital account performance and
real interest rates to adjust for shorter-term currency flows.
 
    The Global Fixed Income Fund may invest in non-publicly traded securities,
private placements and restricted securities. The Global Fixed Income Fund will
occasionally enter into forward foreign currency exchange contracts. These are
used to hedge foreign currency exchange exposures when required.
 
                                       16
<PAGE>
    For temporary defensive purposes, the Global Fixed Income Fund may invest in
money market instruments and short- and medium-term debt securities that the
Adviser believes to be of high quality, or hold cash.
 
    For further information about the foregoing and certain additional
investment practices of the Global Fixed Income Fund, see "Additional Investment
Information" below.
 
THE HIGH YIELD FUND
 
    The Fund seeks to maximize total return by investing in a diversified
portfolio of high yield fixed income securities that offer a yield above that
generally available on debt securities in the four highest rating categories of
the NRSROs. The Fund normally invests between 80% and 100% of its total assets
in these higher yielding securities, (commonly referred to as high yield bonds
or junk bonds) which generally entails increased credit and market risk. To
mitigate these risks the Fund will diversify its holdings by issuer, industry
and credit quality, but investors should carefully review the section below
entitled "Additional Investment Information -- Lower Rated and Unrated Debt
Securities."
 
    Appendix A to this Prospectus sets forth a description of the corporate bond
rating categories of Moody's and Standard & Poor's. Corporate bonds rated below
Baa by Moody's or BBB by Standard & Poor's are considered speculative.
Securities in the lowest rating categories may have predominantly speculative
characteristics or may be in default. Ratings of Standard & Poor's and Moody's
represent their opinions of the quality of bonds and other debt securities they
undertake to rate at the time of issuance. However, ratings are not absolute
standards of quality and may not reflect changes in an issuer's
creditworthiness. Accordingly, although the Adviser will consider ratings, it
will perform its own analysis and will not rely principally on ratings. The
Adviser will consider, among other things, the price of the security, and the
financial history and condition, the prospects and the management of an issuer
in selecting securities for the Fund. The Fund may buy unrated securities that
the Adviser believes are comparable to rated securities and are consistent with
the Fund's objective and policies. The Adviser may vary the average maturity of
the securities in the Fund without limit and there is no restriction on the
maturity of any individual security.
 
    The table below provides a summary of ratings assigned by S&P to debt
obligations in the High Yield Fund. These figures are dollar-weighted averages
of month-end portfolio holdings during the period ended June 30, 1996, and are
presented as a percentage of total investments. These percentages are historical
and are not necessarily indicative of the quality of current or future portfolio
holdings, which may vary.
 
<TABLE>
<CAPTION>
                                                                 PERCENTAGE
DEBT SECURITIES RATINGS                                              OF
(STANDARD & POOR'S)                                              NET ASSETS
- ------------------------------------------------------------     ----------
<S>                                                              <C>
BBB.........................................................       2.28%
BB..........................................................      45.11%
B...........................................................      41.09%
Unrated.....................................................      11.52%
</TABLE>
 
    The High Yield Fund may acquire fixed income securities of both U.S. and
foreign issuers, including debt obligations (e.g., bonds, debentures, notes,
equipment lease certificates, equipment trust certificates, conditional sales
contracts, commercial paper and obligations issued or guaranteed by the U.S.
Government, any foreign government with which the United States maintains
relations or any of their respective political subdivisions, agencies or
instrumentalities) and preferred stock. The Fund may not invest more than 5% of
its total assets at time of acquisition in either (1) equipment lease
certificates, equipment trust certificates and
 
                                       17
<PAGE>
conditional sales contracts or (2) limited partnership interests. The Fund may
neither invest more than 20% of its total assets in foreign securities nor
invest more than 5% of its total assets in foreign governmental issuers in any
one country. The Fund's fixed income securities may have equity features, such
as conversion rights or warrants, and the Fund may invest up to 10% of its total
assets in equity securities other than preferred stock (common stocks, warrants
and rights and limited partnership interests). The Fund may invest up to 20% of
its total assets in fixed income securities that are investment grade (i.e.,
rated in one of the top four categories by an NRSRO or determined to be of
comparable quality) and have maturities of one year or less. For temporary
defensive purposes, the Fund may invest in money market instruments and short-
and medium-term debt securities that the Adviser believes to be of high quality,
or hold cash. The Fund may invest in or own securities of companies in various
stages of financial restructuring, bankruptcy or reorganization which are not
currently paying interest or dividends. Such securities may be rated C by
Moody's or D by Standard & Poor's or may be unrated but determined to be of
comparable quality by the Adviser. The total value, at time of purchase, of the
sum of all such securities will not exceed 10% of the value of the Fund's total
assets. Securities that are rated above C by Moody's or above D by Standard &
Poor's (or are unrated but determined to be of comparable quality by the
Adviser) when purchased by the Fund that are later downgraded may continue to be
held by the Fund at the discretion of the Adviser.
 
    The Fund may also invest in zero coupon, pay-in-kind or deferred payment
securities.
 
    For further information about the foregoing and certain additional
investment practices of the Fund, see "Additional Investment Information" below.
 
THE WORLDWIDE HIGH INCOME FUND
 
    The investment objective of the Worldwide High Income Fund is high current
income consistent with relative stability of principal and, secondarily, capital
appreciation, by investing primarily in a portfolio of high yielding fixed
income securities of issuers located throughout the world. The Fund seeks to
achieve its investment objective by allocating its assets among any or all of
three investment sectors: U.S. corporate lower rated and unrated debt
securities, emerging country debt securities and global fixed income securities
offering high real yields. The types of securities in each of these investment
sectors in which the Fund may invest are described below. In selecting U.S.
corporate lower rated and unrated debt securities for the Fund's portfolio, the
Adviser will consider, among other things, the price of the security, and the
financial history, condition, prospects and management of an issuer. The Adviser
intends to invest a portion of the Fund's assets in emerging country debt
securities that provide a high level of current income, while at the same time
holding the potential for capital appreciation if the perceived creditworthiness
of the issuer improves due to improving economic, financial, political, social
or other conditions in the country in which the issuer is located. In addition,
the Adviser will attempt to invest a portion of the Fund's assets in fixed
income securities of issuers in global fixed income markets displaying high real
(inflation adjusted) yields. Under normal conditions, the Fund invests between
80% and 100% of its total assets in some or all of three categories of higher
yielding securities, some of which may entail increased credit and market risk.
Some or all of such higher yielding securities will be lower rated or unrated
debt securities, commonly referred to as "junk bonds."
 
    The Adviser's approach to multi-currency fixed-income management is
strategic and value-based and designed to produce an attractive real rate of
return. The Adviser's assessment of the bond markets and
 
                                       18
<PAGE>
currencies is based on an analysis of real interest rates. Current nominal
yields of securities are adjusted for inflation prevailing in each currency
sector using an analysis of past and projected inflation rates. The Fund's aim
is to invest in bond markets which offer the most attractive real returns
relative to inflation.
 
    From time to time, a portion of the Worldwide High Income Fund's
investments, which may be up to 100% of the Fund's investments, may be in "junk
bonds." For a discussion of the risks associated with junk bonds, see "The High
Yield Fund" above. Emerging country debt securities in which the Fund may invest
will be subject to high risk and will not be required to meet a minimum rating
standard and may not be rated for creditworthiness by any internationally
recognized credit rating organization. The Fund's investments in U.S. corporate
lower rated and unrated debt securities and emerging country debt securities are
expected to be rated in the lower and lowest rating categories of
internationally recognized credit rating organizations or to be unrated
securities of comparable quality. To mitigate the risks associated with
investments in such lower rated securities, the Fund will diversify its holdings
by market, issuer, industry and credit quality. Investors should carefully
review the section below entitled "Additional Investment Information -- Risk
Factors Relating to Investing in Lower Rated Debt Securities."
 
    The chart below indicates the Worldwide High Income Fund's weighted average
composition of debt securities graded by Standard & Poor's for the fiscal year
ended June 30, 1996.
 
<TABLE>
<CAPTION>
                                                            PERCENTAGE
DEBT SECURITIES RATINGS                                         OF
(STANDARD & POOR'S)                                         NET ASSETS
- ----------------------------------------------------------------------
<S>                                                         <C>
A...........................................................   8.93%
BBB.........................................................   2.54%
BB..........................................................  24.17%
B...........................................................  16.08%
CCC.........................................................   0.17%
Unrated.....................................................  48.10%
</TABLE>
 
    The weighted average indicated above was calculated on a dollar weighted
basis and was computed as at the end of each month through June 30, 1996. These
percentages are historical and are not necessarily indicative of the quality of
current or future portfolio holdings, which may vary. For a description of
Standard & Poor's ratings of fixed income securities, see Appendix A to this
Prospectus.
 
    The Worldwide High Income Fund may invest in or own securities of companies
in various stages of financial restructuring, bankruptcy or reorganization which
are not currently paying interest or dividends, provided that the total value,
at the time of purchase, of all such securities will not exceed 10% of the value
of the Fund's total assets. The Fund may have limited recourse in the event of
default on such debt instruments. The Fund may invest in loans, assignments of
loans and participation in loans. The Fund may also invest in depositary
receipts issued by U.S. or foreign financial institutions.
 
    The Worldwide High Income Fund is not restricted in the portion of its
assets which may be invested in securities denominated in a particular currency
and a substantial portion of the Fund's assets may be invested in non-U.S.
Dollar-denominated securities. The portion of the Fund's assets invested in
securities denominated in currencies other than the U.S. Dollar will vary
depending on market conditions. Although the Fund is permitted to engage in a
wide variety of investment practices designed to hedge against currency exchange
rate risks with
 
                                       19
<PAGE>
respect to its holdings of non-U.S. Dollar-denominated debt securities, the Fund
may be limited in its ability to hedge against these risks. The Fund may also
buy and sell options and may enter into futures contracts and options on
futures, including indexed financial futures contracts.
 
    The Worldwide High Income Fund may invest in zero coupon, pay-in-kind or
deferred payment securities, and in securities that may be collateralized by
zero coupon securities (such as Brady Bonds). The Worldwide High Income Fund may
invest in non-publicly traded securities, private placements and restricted
securities.
 
    The Worldwide High Income Fund is authorized to borrow up to 33 1/3% of its
total assets (including the amount borrowed), less all liabilities and
indebtedness other than the borrowing, for investment purposes to increase the
opportunity for greater return and for payment of dividends. Such borrowings
would constitute leverage, which is a speculative characteristic. Leveraging
will magnify declines as well as increases in the net asset value of the Fund's
shares and in the yield on the Fund's investments. Although the Fund is
authorized to borrow, it will do so only when the Adviser believes that
borrowing will benefit the Fund after taking into account considerations such as
the costs of borrowing and the likely investment returns on securities purchased
with borrowed monies. Borrowing by the Fund will create the opportunity for
increased net income but, at the same time, will involve special risk
considerations.
 
    The Fund expects that all of its borrowing will be made on a secured basis.
The Fund's custodian will either segregate the assets securing the borrowing for
the benefit of the lenders or arrangements will be made with a suitable
sub-custodian. If assets used to secure the borrowing decrease in value, the
Fund may be required to pledge additional collateral to the lender in the form
of cash or securities to avoid liquidation of those assets. The Fund may also
enter into reverse repurchase agreements.
 
    The average time to maturity of the Worldwide High Income Fund's securities
will vary depending upon the Adviser's perception of market conditions. The
Adviser invests primarily in medium-term securities (i.e., those with a
remaining maturity of approximately five years) in a market neutral environment.
When the Adviser believes that real yields are high, the Adviser lengthens the
remaining maturities of securities held by the Fund and, conversely, when the
Adviser believes real yields are low, it shortens the remaining maturities.
Thus, the Fund is not subject to any restrictions on the maturities of the debt
securities it holds, and the Adviser may vary the average maturity of the
securities held in the Fund's portfolio without limit.
 
    For temporary defensive purposes, the Worldwide High Income Fund may invest
in money market instruments and short- and medium-term debt securities that the
Adviser believes to be of high quality, or hold cash.
 
    U.S. CORPORATE HIGH YIELD FIXED INCOME SECURITIES.  A portion of the
Worldwide High Income Fund's assets will be invested in U.S. corporate high
yield fixed income securities, which are commonly referred to as "junk bonds."
The Fund may acquire fixed income securities of U.S. issuers, including debt
obligations (e.g., bonds, debentures, notes, equipment lease certificates,
equipment trust certificates, conditional sales contracts, commercial paper and
obligations issued or guaranteed by the U.S. Government or any of its political
subdivisions, agencies or instrumentalities) and preferred stock. These fixed
income securities may have equity features, such as conversion rights or
warrants and the Fund may invest up to 10% of its total assets in equity
 
                                       20
<PAGE>
securities other than preferred stock (e.g., common stocks, warrants and rights
and limited partnership interests). The Fund may not invest more than 5% of its
total assets at the time of acquisition in either of (1) equipment lease
certificates, equipment trust certificates and conditional sales contracts or
(2) limited partnership interests.
 
    EMERGING COUNTRY FIXED INCOME SECURITIES.  A portion of the Worldwide High
Income Fund's assets will be invested in emerging country fixed income
securities. For a discussion of emerging country fixed income securities, see
"Emerging Markets Debt Fund" above.
 
    GLOBAL FIXED INCOME SECURITIES.  A portion of the Worldwide High Income
Fund's assets will be invested in global fixed income securities. For a
discussion of global fixed income securities, see "Global Fixed Income Fund"
above.
 
    For further information about the foregoing and certain additional
investment practices of the Fund, including investment in derivative securities,
see "Additional Investment Information" below.
 
                       ADDITIONAL INVESTMENT INFORMATION
 
BORROWING AND OTHER FORMS OF LEVERAGE
 
    The Global Fixed Income and High Yield Funds may borrow up to 10% of their
total assets as a temporary measure for extraordinary or emergency purposes.
These Funds may not purchase additional securities when borrowings exceed 5% of
total assets. The Worldwide High Income Fund may enter into reverse repurchase
agreements in accordance with its investment objective and policies and may
borrow amounts up to 33 1/3% of its total assets (including the amount
borrowed), less all liabilities and indebtedness other than the borrowing. The
Emerging Markets Debt Fund may borrow money (i) as a temporary measure for
extraordinary or emergency purposes, and (ii) in connection with reverse
repurchase agreements, provided that (i) and (ii) in combination do not exceed
33 1/3% of the Fund's total assets (including the amount borrowed) less
liabilities (exclusive of borrowings).
 
DEPOSITARY RECEIPTS
 
    The Emerging Markets Debt and Worldwide High Income Funds may invest in
American Depositary Receipts ("ADRs"), Global Depositary Receipts ("GDRs"),
European Depositary Receipts ("EDRs") and other depositary receipts, to the
extent that such depositary receipts become available. ADRs are securities,
typically issued by a U.S. financial institution (a "depositary"), that evidence
ownership interests in a security or a pool of securities issued by a foreign
issuer (the "underlying issuer") and deposited with the depositary. ADRs include
American Depositary Shares and New York Shares and may be "sponsored" or
"unsponsored." Sponsored ADRs are established jointly by a depositary and the
underlying issuer, whereas unsponsored ADRs may be established by a depositary
without participation by the underlying issuer. GDRs, EDRs and other types of
depositary receipts are typically issued by foreign depositaries, although they
may also be issued by U.S. depositaries, and evidence ownership interests in a
security or pool of securities issued by either a foreign or a U.S. corporation.
 
FOREIGN CURRENCY HEDGING TRANSACTIONS
 
    Each Fund may enter into forward foreign currency exchange contracts
("forward contracts"). Forward contracts provide for the purchase or sale of an
amount of a specified foreign currency at a future date. Purposes for which such
contracts may be used include protecting against a decline in a foreign currency
against the U.S.
 
                                       21
<PAGE>
Dollar between the trade date and settlement date when a Fund purchases or sells
securities, locking in the U.S. Dollar value of dividends declared on securities
held by the Fund and generally protecting the U.S. Dollar value of securities
held by the Fund against exchange rate fluctuations. While such forward
contracts may limit losses to a Fund as a result of exchange rate fluctuations,
they will also limit any exchange rate gains that might otherwise have been
realized.
 
    The Worldwide High Income Fund may also enter into foreign currency futures
contracts. A foreign currency futures contract is a standardized contract for
the future delivery of a specified amount of a foreign currency at a future date
at a price set at the time of the contract. Foreign currency futures contracts
traded in the U.S. are traded on regulated exchanges. Parties to a futures
contract must make initial "margin" deposits to secure performance of the
contract, which generally range from 2% to 5% of the contract price. There also
are requirements to make "variation" margin deposits as the value of the futures
contract fluctuates. The Funds may not enter into foreign currency futures
contracts if the aggregate amount of initial margin deposits on the Fund's
futures positions, including stock index futures contracts (which are discussed
below), would exceed 5% of the value of the Fund's total assets. The Funds also
will be required to segregate assets to cover its futures contracts obligations.
 
    At the maturity of a forward or futures contract, a Fund may either accept
or make delivery of the currency specified in the contract or, prior to
maturity, enter into a closing purchase transaction involving the purchase or
sale of an offsetting contract. Closing purchase transactions with respect to
forward contracts are usually effected with the currency trader who is a party
to the original forward contract. Closing purchase transactions with respect to
futures contracts are effected on an exchange. A Fund will only enter into such
a forward or futures contract if it is expected that there will be a liquid
market in which to close out such contract. There can, however, be no assurance
that such a liquid market will exist in which to close a forward or futures
contract, in which case the Fund may suffer a loss.
 
    The Worldwide High Income Fund may attempt to accomplish objectives similar
to those described above with respect to forward and futures contracts for
currency by means of purchasing put or call options on foreign currencies on
exchanges. A put option gives the Fund the right to sell a currency at the
exercise price until the expiration of the option. A call option gives the Fund
the right to purchase a currency at the exercise price until the expiration of
the option.
 
    The Custodian of each Fund will place cash or other liquid assets into a
segregated account of a Fund in an amount equal to the value of such Fund's
total assets committed to the consummation of forward foreign currency exchange
contracts. If the value of the securities placed in the segregated account
declines, additional cash or liquid assets will be placed in the account on a
daily basis so that the value of the account will be at least equal to the
amount of such Fund's commitments with respect to such contracts.
 
FOREIGN INVESTMENT
 
    Each Fund may invest in securities of foreign issuers. Investment in
securities of foreign issuers, especially in securities of issuers in emerging
countries, involves somewhat different investment risks from those affecting
securities of U.S. issuers. There may be limited publicly available information
with respect to foreign issuers, and foreign issuers are not generally subject
to uniform accounting, auditing, and financial and other reporting standards and
requirements comparable to those applicable to domestic companies. Therefore,
disclosure of certain material information may not be made and less information
may be available to investors investing in
 
                                       22
<PAGE>
foreign countries than in the United States. There may also be less government
supervision and regulation of foreign securities exchanges, brokers and listed
companies than in the United States. Many foreign securities markets have
substantially less volume than U.S. national securities exchanges, and
securities of some foreign issuers are less liquid and subject to greater price
volatility than securities of comparable domestic issuers. Brokerage commissions
and other transaction costs on foreign securities exchanges are generally higher
than in the United States. Dividends and interest paid by foreign issuers may be
subject to withholding and other foreign taxes, which may decrease the net
return on foreign investments as compared to dividends and interest paid to the
Funds by domestic companies. Additional risks include future adverse political
and economic developments, the possibility that a foreign jurisdiction might
impose or change withholding taxes on income payable with respect to foreign
securities, possible seizure, nationalization or expropriation of the foreign
issuer or foreign deposits, and the possible adoption of foreign governmental
restrictions such as exchange controls. Emerging countries may have less stable
political environments than more developed countries. Also, it may be more
difficult to obtain a judgment in a court outside the United States.
 
    The economies of individual emerging countries may differ favorably or
unfavorably from the U.S. economy in such respects as growth of gross domestic
product, rate of inflation, currency depreciation, capital reinvestment,
resource self-sufficiency and balance of payments position. Further, the
economies of developing countries generally are heavily dependent upon
international trade and, accordingly, have been, and may continue to be,
adversely affected by trade barriers, exchange controls, managed adjustments in
relative currency values and other protectionist measures imposed or negotiated
by the countries with which they trade. These economies also have been, and may
continue to be, adversely affected by economic conditions in the countries with
which they trade.
 
    Investments in securities of foreign issuers are generally denominated in
foreign currencies, and a Fund may temporarily hold uninvested reserves in bank
deposits in foreign currencies. Therefore, the value of a Fund's assets measured
in U.S. Dollars may be affected favorably or unfavorably by changes in currency
exchange rates and exchange control regulations. Each Fund will also incur
certain costs in connection with conversions between various currencies.
 
INVESTMENT FUNDS
 
    A Fund may invest in securities of another open-end or closed-end investment
company, by purchase in the open market involving only customary brokers'
commission or in connection with mergers, acquisitions of assets or
consolidations and as may otherwise be permitted by the 1940 Act.
 
    Some emerging countries have laws and regulations that currently preclude
direct foreign investment in the securities of their companies. However,
indirect foreign investment in the securities of companies listed and traded on
the stock exchanges in these countries is permitted by certain emerging
countries through investment funds which have been specifically authorized. The
Emerging Markets Debt Fund, Global Fixed Income Fund and Worldwide High Income
Fund may invest in these investment funds subject to applicable provisions of
the 1940 Act, and other applicable laws. If a Fund invests in such investment
funds, the Fund's shareholders will bear not only their proportionate share of
the expenses of the Fund (including operating expenses and the fees of the
Adviser), but also will indirectly bear similar expenses of the underlying
investment funds.
 
    Certain of the investment funds referred to in the preceding paragraph are
advised by the Adviser. The Emerging Markets Debt Fund, Global Fixed Income Fund
and Worldwide High Income Fund may, to the extent
 
                                       23
<PAGE>
permitted under the 1940 Act and other applicable law, invest in these
investment funds. If the Fund does elect to make an investment in such an
investment fund, it will only purchase the securities of such investment fund in
the secondary market.
 
LOANS OF PORTFOLIO SECURITIES
 
    Each Fund may lend its securities to brokers, dealers, domestic and foreign
banks or other financial institutions for the purpose of increasing its net
investment income. These loans must be secured continuously by cash or
equivalent collateral or by a letter of credit at least equal to the market
value of the securities loaned plus accrued interest. A Fund will not enter into
securities loan transactions exceeding in the aggregate 33 1/3% of the market
value of the Fund's total assets. As with other extensions of credit, there are
risks of delay in recovery or even loss of rights in collateral should the
borrower of the portfolio securities fail financially.
 
LOAN PARTICIPATIONS AND ASSIGNMENTS
 
    The Emerging Markets Debt and Worldwide High Income Funds may invest in
fixed and floating rate loans ("Loans") arranged through private negotiations
between an issuer of sovereign or corporate debt obligations and one or more
financial institutions ("Lenders"). Such Funds' investments in Loans are
expected in most instances to be in the form of participations in Loans
("Participations") and assignments of all or a portion of Loans ("Assignments")
from third parties. In the case of Participations, a Fund will have the right to
receive payments of principal, interest and any fees to which it is entitled
only from the Lender selling the Participations and only upon receipt by the
Lender of the payments from the borrower. In the event of the insolvency of the
Lender selling a Participation, a Fund may be treated as a general creditor of
the Lender and may not benefit from any set-off between the Lender and the
borrower. A Fund will acquire Participations only if the Lender interpositioned
between the Fund and the borrower is determined by the Adviser to be
creditworthy. When a Fund purchases Assignments from Lenders it will acquire
direct rights against the borrower on the Loan. Because Assignments are arranged
through private negotiations between potential assignees and potential
assignors, however, the rights and obligations acquired by a Fund as the
purchaser of an Assignment may differ from, and be more limited than, those held
by the assigning Lender. Because there is no liquid market for such securities,
the Funds anticipate that such securities could be sold only to a limited number
of institutional investors. The lack of a liquid secondary market may have an
adverse impact on the value of such securities and a Fund's ability to dispose
of particular Assignments or Participations when necessary to meet the Fund's
liquidity needs or in response to a specific economic event such as a
deterioration in the creditworthiness of the borrower. The lack of a liquid
secondary market for Assignments and Participations also may make it more
difficult for a Fund to assign a value to these securities for purposes of
valuing the Fund's portfolio and calculating its net asset value.
 
LOWER RATED AND UNRATED DEBT SECURITIES
 
    The Emerging Markets Debt, Worldwide High Income and High Yield Funds may
invest in lower rated or unrated debt securities, commonly referred to as "junk
bonds." In addition, the emerging country debt securities in which such Funds
may invest are subject to additional risks and will not be required to meet a
minimum rating standard and may not be rated. Fixed income securities are
subject to the risk of an issuer's inability to meet principal and interest
payments on the obligations (credit risk) and may also be subject to price
volatility due to such factors as interest rate sensitivity, market perception
of the creditworthiness of the issuer and general market liquidity (market
risk). Lower rated or unrated securities are more likely to react to
 
                                       24
<PAGE>
developments affecting market and credit risk than are more highly rated
securities, which react primarily to movements in the general level of interest
rates. The market values of fixed income securities tend to vary inversely with
the level of interest rates. Yields and market values of lower rated and unrated
debt securities will fluctuate over time, reflecting not only changing interest
rates but the market's perception of credit quality and the outlook for economic
growth. When economic conditions appear to be deteriorating, medium to lower
rated securities may decline in value due to heightened concern over credit
quality, regardless of prevailing interest rates. Fluctuations in the value of a
Fund's investments will be reflected in the Fund's net asset value per share.
The Adviser considers both credit risk and market risk in making investment
decisions for the Funds. Investors should carefully consider the relative risks
of investing in lower rated and unrated debt securities and understand that such
securities are not generally meant for short-term investing.
 
    The U.S. corporate lower rated and unrated debt securities market is
relatively new and its recent growth paralleled a long period of economic
expansion and an increase in merger, acquisition and leveraged buyout activity.
Adverse economic developments may disrupt the market for U.S. corporate lower
rated and unrated debt securities and for emerging country debt securities. Such
disruptions may severely affect the ability of issuers, especially highly
leveraged issuers, to service their debt obligations or to repay their
obligations upon maturity. In addition, the secondary market for lower rated and
unrated debt securities, which is concentrated in relatively few market makers,
may not be as liquid as the secondary market for more highly rated securities.
As a result, the Adviser could find it more difficult to sell these securities
or may be able to sell the securities only at prices lower than if such
securities were widely traded. Prices realized upon the sale of such lower rated
or unrated securities, under these circumstances, may be less than the prices
used in calculating the Fund's net asset value.
 
    Prices for lower rated and unrated debt securities may be affected by
legislative and regulatory developments. These laws could adversely affect the
Fund's net asset value and investment practices, the secondary market for lower
rated and unrated debt securities, the financial condition of issuers of such
securities and the value of outstanding lower rated and unrated debt securities.
For example, U.S. federal legislation requiring the divestiture by federally
insured savings and loan associations of their investments in lower rated and
unrated debt securities and limiting the deductibility of interest by certain
corporate issuers of lower rated and unrated debt securities adversely affected
the market in recent years.
 
    Ratings of a non-U.S. debt instrument, to the extent that those ratings are
undertaken, are related to evaluations of the country in which the issuer of the
instrument is located. Ratings generally take into account the currency in which
a non-U.S. debt instrument is denominated; instruments issued by a foreign
government in other than the local currency, for example, typically have a lower
rating than local currency instruments due to the existence of an additional
risk that the government will be unable to obtain the required foreign currency
to service its foreign currency-denominated debt. In general, the ratings of
debt securities or obligations issued by a non-U.S. public or private entity
will not be higher than the rating of the currency or the foreign currency debt
of the central government of the country in which the issuer is located,
regardless of the intrinsic creditworthiness of the issuer. In addition, there
may be limited trading markets for debt securities of issuers located in
emerging countries.
 
    Lower rated or unrated debt obligations also present risks based on payment
expectations. If an issuer calls the obligations for redemption, the Fund may
have to replace the security with a lower yielding security, resulting in a
decreased return for investors. If the Fund experiences unexpected net
redemptions, it may be
 
                                       25
<PAGE>
forced to sell its higher rated securities, resulting in a decline in the
overall credit quality of the Fund's investment portfolio and increasing the
exposure of the Fund to the risks of lower rated and unrated debt securities.
 
MONEY MARKET INSTRUMENTS
 
    The Funds are permitted to invest in money market instruments for liquidity
and temporary defensive purposes, although the Funds intend to stay invested in
securities satisfying their primary investment objective to the extent
practical. The Funds may make money market investments pending other investment
or settlement for liquidity or in adverse market conditions. The money market
investments permitted for the Funds include obligations of the U.S. Government,
its agencies and instrumentalities, obligations of foreign sovereignties and
other debt securities, including high grade commercial paper, repurchase
agreements and bank obligations, such as bankers' acceptances and certificates
of deposit (including Eurodollar certificates of deposit).
 
NON-PUBLICLY TRADED SECURITIES, PRIVATE PLACEMENTS AND RESTRICTED SECURITIES
 
    Each Fund may invest in securities that are neither listed on a stock
exchange nor traded over-the-counter. Such unlisted securities may involve a
higher degree of business and financial risk that can result in substantial
losses. As a result of the absence of a public trading market for these
securities, they may be less liquid than publicly traded securities. Although
these securities may be resold in privately negotiated transactions, the prices
realized from these sales could be less than what may be considered the fair
value of such securities. Furthermore, companies whose securities are not
publicly traded may not be subject to the disclosure and other investor
protection requirements which might be applicable if their securities were
publicly traded. If such securities are required to be registered under the
securities laws of one or more jurisdictions before being resold, a Fund may be
required to bear the expenses of registration. A Fund may not invest more than
15% of its net assets in illiquid securities nor, except as set forth below,
more than 10% of its total assets in securities subject to legal or contractual
restrictions on resale. The Emerging Markets Debt Fund is not subject to the
foregoing 10% limitation. Securities that are restricted from sale to the public
without registration ("Restricted Securities") under the Securities Act of 1933,
as amended, (the "1933 Act"), which can be offered and sold to qualified
institutional buyers under Rule 144A under the 1933 Act ("144A Securities") may
be determined to be liquid under guidelines adopted by, and subject to the
supervision of, the Board of Directors. The High Yield Fund may not invest more
than 10% of its total assets in Restricted Securities, except that it may invest
up to 20% of its total assets in 144A Securities. 144A securities may become
illiquid if qualified institutional buyers are not interested in acquiring the
securities.
 
REPURCHASE AGREEMENTS
 
    Each Fund may enter into repurchase agreements with brokers, dealers or
banks that meet the credit guidelines of the Company's Board of Directors. In a
repurchase agreement, a Fund buys a security from a seller that has agreed to
repurchase it at a mutually agreed upon date and price, reflecting the interest
rate effective for the term of the agreement. The Funds always receive
securities as collateral with a market value at least equal to the purchase
price, including accrued interest, and this value is maintained during the term
of the agreement. If the seller defaults and the collateral value declines, a
Fund might incur a loss. If bankruptcy proceedings are commenced with respect to
the seller, the Fund's realization upon the collateral may be delayed or
limited. Repurchase agreements with durations (or maturities) over seven days in
length are considered to be illiquid securities.
 
                                       26
<PAGE>
REVERSE REPURCHASE AGREEMENTS
 
    The Emerging Markets Debt and Worldwide High Income Funds may enter into
reverse repurchase agreements with brokers, dealers, domestic and foreign banks
or other financial institutions that have been determined by the Adviser to be
creditworthy. In a reverse repurchase agreement, a Fund sells a security and
agrees to repurchase it at a mutually agreed upon date and price, reflecting the
interest rate effective for the term of the agreement. It may also be viewed as
the borrowing of money by a Fund. A Fund's investment of the proceeds of a
reverse repurchase agreement is the speculative factor known as leverage. A Fund
will enter into a reverse repurchase agreement only if the interest income from
investment of the proceeds is expected to be greater than the interest expense
of the transaction and the proceeds are invested for a period no longer than the
term of the agreement. A Fund will maintain with the Custodian a separate
account with a segregated portfolio of cash or liquid assets in an amount at
least equal to its purchase obligations under these agreements (including
accrued interest). If interest rates rise during a reverse repurchase agreement,
it may adversely affect a Fund's net asset value. In the event that the buyer of
securities under a reverse repurchase agreement files for bankruptcy or becomes
insolvent, the buyer or its trustee or receiver may receive an extension of time
to determine whether to enforce the Fund's repurchase obligation, and the Fund's
use of proceeds of the agreement may effectively be restricted pending such
decision.
 
SHORT SALES
 
    The Emerging Markets Debt and Worldwide High Income Funds may from time to
time sell securities short without limitation. A short sale is a transaction in
which a Fund would sell securities it does not own (but has borrowed) in
anticipation of a decline in the market price of the securities. When a Fund
makes a short sale, the proceeds it receives from the sale will be held on
behalf of a broker until the Fund replaces the borrowed securities. To deliver
the securities to the buyer, a Fund will need to arrange through a broker to
borrow the securities and, in so doing, the Fund will become obligated to
replace the securities borrowed at their market price at the time of
replacement, whatever that price may be. The Funds may have to pay a premium to
borrow the securities and must pay any dividends or interest payable on the
securities until they are replaced.
 
    Each Fund's obligation to replace the securities borrowed in connection with
a short sale will be secured by collateral deposited with the broker that
consists of cash, or U.S. Government securities or other liquid assets. In
addition, each Fund will place in a segregated account with its Custodian an
amount of cash or liquid assets equal to the difference, if any, between (1) the
market value of the securities sold at the time they were sold short and (2) any
cash, U.S. Government securities or other liquid high grade debt obligations
deposited as collateral with the broker in connection with the short sale (not
including the proceeds of the short sale). Short sales by a Fund involve certain
risks and special considerations. Possible losses from short sales differ from
losses that could be incurred from a purchase of a security, because losses from
short sales may be unlimited, whereas losses from purchases can equal only the
total amount invested.
 
TEMPORARY INVESTMENTS
 
    For temporary defensive purposes, when the Adviser determines that market
conditions warrant, each Fund may invest up to 100% of its assets in money
market instruments and short- and medium-term debt securities that the Adviser
believes to be of high quality, or hold cash. See "Investment Objectives and
Policies," above for further information about each Fund's policies.
 
                                       27
<PAGE>
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES
 
    Each Fund may purchase securities on a when-issued or delayed delivery
basis. In such transactions, instruments are bought with payment and delivery
taking place in the future in order to secure what is considered to be an
advantageous yield or price at the time of the transaction. Each Fund will
maintain with the appropriate Custodian a separate account with a segregated
portfolio of cash or liquid assets in an amount at least equal to these
commitments. The payment obligation and the interest rates that will be received
are each fixed at the time a Fund enters into the commitment, and no interest
accrues to the Fund until settlement. It is a current policy of each of the
Funds, other than the Emerging Markets Debt Fund, not to enter into when-issued
commitments or delayed delivery securities exceeding, in the aggregate, 15% of
the Fund's net assets other than the obligations created by these commitments.
 
ZERO COUPONS; PAY-IN-KIND; DEFERRED PAYMENT SECURITIES
 
    The Funds may invest in zero coupon securities, which are securities that
are sold at a discount to par value and on which interest payments are not made
during the life of the security. Upon maturity, the holder is entitled to
receive the par value of the security. While interest payments are not made on
such securities, holders of such securities are deemed to have received annually
"phantom income." Because a Fund will distribute its "phantom income" to
shareholders, to the extent that shareholders elect to receive dividends in cash
rather than reinvesting such dividends in additional shares, the Fund will have
fewer assets with which to purchase income producing securities. A Fund accrues
income with respect to these securities prior to the receipt of cash payments.
Pay-in-kind securities are securities that have interest payable by delivery of
additional securities. Upon maturity, the holder is entitled to receive the
aggregate par value of the securities. Deferred payment securities are
securities that remain zero coupon securities until a predetermined date, at
which time the stated coupon rate becomes effective and interest becomes payable
at regular intervals. Zero coupon, pay-in-kind and deferred payment securities
may be subject to greater fluctuation in value and lesser liquidity in the event
of adverse market conditions than comparably rated securities paying cash
interest at regular interest payment periods.
 
DERIVATIVE INSTRUMENTS
 
    The Funds are permitted to invest in various derivative instruments for both
hedging and non-hedging purposes. Derivatives instruments include options,
futures and options on futures, structured instruments and structured notes,
caps, floors, collars and swaps. Additionally, the Funds may invest in other
derivative instruments that are developed over time if their use would be
consistent with the objectives of the Funds. Each Fund will limit its use of the
foregoing derivative instruments for non-hedging purposes to 25% of its total
assets measured by the aggregate notional amount of outstanding derivative
instruments. In addition, the Funds, other than the Emerging Markets Debt Fund,
will not enter into futures contracts to the extent that the notional value of
its outstanding obligations to purchase securities under such contracts, in
combination with its outstanding obligations with respect to options
transactions (including options to purchase securities or instruments) would
exceed 20% of its total assets. The Funds' investments in forward foreign
currency contracts are not subject to the limits described above.
 
    The Funds may use derivatives instruments under a number of different
circumstances to further their investment objectives. The Funds may use
derivatives when doing so provides more liquidity than the direct purchase of
the securities underlying such derivatives. For example, a Fund may purchase
derivatives to quickly gain exposure to a market in response to changes in the
Fund's asset allocation policy or upon the inflow of
 
                                       28
<PAGE>
investable cash when the derivative provides greater liquidity than the
underlying securities market. A Fund may also use derivatives when it is
restricted from directly owning the underlying securities due to foreign
investment restrictions or other reasons or when doing so provides a price
advantage over purchasing the underlying securities directly, either because of
a pricing differential between the derivatives and securities markets or because
of lower transaction costs associated with the derivatives transaction.
Derivatives may also be used by a Fund for hedging purposes and under other
circumstances in which a Fund's portfolio managers believe it advantageous to do
so consistent with the Fund's investment objective. The Funds will not, however,
use derivatives in a manner that creates leverage, except to the extent that the
use of leverage is expressly permitted by a particular Fund's investment
policies, and then only in a manner consistent with such policies.
 
    Some of the derivative instruments in which the Funds may invest and the
risks related thereto are described in more detail below.
 
CAPS, FLOORS AND COLLARS
 
    The Funds may invest in caps, floors and collars, which are instruments
analogous to options. In particular, a cap is the right to receive the excess of
a reference rate over a given rate and is analogous to a put option. A floor is
the right to receive the excess of a given rate over a reference rate and is
analogous to a call option. Finally, a collar is an instrument that combines a
cap and a floor. That is, the buyer of a collar buys a cap and writes a floor,
and the writer of a collar writes a cap and buys a floor. The risks associated
with caps, floors and collars are similar to those associated with options. In
addition, caps, floors and collars are subject to risk of default by the
counterparty because they are privately negotiated instruments.
 
FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS
 
    The Funds may purchase and sell futures contracts and options on futures
contracts, including but not limited to securities index futures, foreign
currency exchange futures, interest rate futures contracts and other financial
futures. Futures contracts provide for the sale by one party and purchase by
another party of a specified amount of a specific security, instrument or basket
thereof, at a specific future date and at a specified price. An option on a
futures contract is a legal contract that gives the holder the right to buy or
sell a specified amount of futures contracts at a fixed or determinable price
upon the exercise of the option.
 
    The Funds may sell securities index futures contracts and/or options thereon
in anticipation of or during a market decline to attempt to offset the decrease
in market value of investments in its portfolio, or purchase securities index
futures in order to gain market exposure. Subject to applicable laws, the Funds
may engage in transactions in securities index futures contracts (and options
thereon) which are traded on a recognized securities or futures exchange, or may
purchase or sell such instruments in the over-the-counter market. There
currently are limited securities index futures and options on such futures in
many countries, particularly emerging countries. The nature of the strategies
adopted by the Adviser, and the extent to which those strategies are used, may
depend on the development of such markets.
 
    The Funds may engage in transactions involving foreign currency exchange
futures contracts. Such contracts involve an obligation to purchase or sell a
specific currency at a specified future date and at a specified price. The Funds
may engage in such transactions to hedge their respective holdings and
commitments against changes in the level of future currency rates or to adjust
their exposure to a particular currency.
 
                                       29
<PAGE>
    The Funds may engage in transactions in interest rate futures transactions.
Interest rate futures contracts involve an obligation to purchase or sell a
specific debt security, instrument or basket thereof at a specified future date
at a specified price. The value of the contract rises and falls inversely with
changes in interest rates. The Funds may engage in such transactions to hedge
their holdings of debt instruments against future changes in interest rates.
 
    Financial futures are futures contracts relating to financial instruments,
such as U.S. Government securities, foreign currencies and certificates of
deposit. Such contracts involve an obligation to purchase or sell a specific
security, instrument or basket thereof at a specified future date at a specified
price. Like interest rate futures contracts, the value of financial futures
contracts rises and falls inversely with changes in interest rates. The Funds
may engage in financial futures contracts for hedging and non-hedging purposes.
 
    Under rules adopted by the Commodity Futures Trading Commission, each Fund
may enter into futures contracts and options thereon for both hedging and
non-hedging purposes, provided that not more than 5% of such Fund's total assets
at the time of entering the transaction are required as margin and option
premiums to secure obligations under such contracts relating to non-hedging
activities.
 
    Gains and losses on futures contracts and options thereon depend on the
Adviser's ability to predict correctly the direction of securities prices,
interest rates and other economic factors. Other risks associated with the use
of futures and options are (i) imperfect correlation between the change in
market value of investments held by a Fund and the prices of futures and options
relating to investments purchased or sold by the Fund, and (ii) possible lack of
a liquid secondary market for a futures contract and the resulting inability to
close a futures position. The risk that a Fund will be unable to close out a
futures position or options contract will be minimized by only entering into
futures contracts or options transactions for which there appears to be a liquid
exchange or secondary market. The risk of loss in trading on futures contracts
in some strategies can be substantial, due both to the low margin deposits
required and the extremely high degree of leverage involved in futures pricing.
 
OPTIONS TRANSACTIONS
 
    The Funds may seek to increase their returns or may hedge their portfolio
investments through options transactions with respect to securities,
instruments, indices or baskets thereof in which such Funds may invest, as well
as with respect to foreign currency. Purchasing a put option gives a Fund the
right to sell a specified security, currency or basket of securities or
currencies at the exercise price until the expiration of the option. Purchasing
a call option gives a Fund the right to purchase a specified security, currency
or basket of securities or currencies at the exercise price until the expiration
of the option.
 
    Each Fund also may write (i.e., sell) put and call options on investments
held in its portfolio, as well as with respect to foreign currency. A Fund that
has written an option receives a premium, which increases the Fund's return on
the underlying security or instrument in the event the option expires
unexercised or is closed out at a profit. However, by writing a call option, a
Fund will limit its opportunity to profit from an increase in the market value
of the underlying security or instrument above the exercise price of the option
for as long as the Fund's obligation as writer of the option continues. The
Funds may only write options that are "covered." A covered call option means
that so long as the Fund is obligated as the writer of the option, it will
earmark or segregate sufficient liquid assets to cover its obligations under the
option or own (i) the underlying security or instrument subject to the option,
(ii) securities or instruments convertible or exchangeable without the payment
of any
 
                                       30
<PAGE>
consideration into the security or instrument subject to the option, or (iii) a
call option on the same underlying security with a strike price no higher than
the price at which the underlying instrument was sold pursuant to a short option
position.
 
    By writing (or selling) a put option, a Fund incurs an obligation to buy the
security or instrument underlying the option from the purchaser of the put at
the option's exercise price at any time during the option period, at the
purchaser's election. The Funds may also write options that may be exercisable
by the purchaser only on a specific date. A Fund that has written a put option
will earmark or segregate sufficient liquid assets to cover its obligations
under the option or will own a put option on the same underlying security with
an equal or higher strike price.
 
    The Funds may engage in transactions in options which are traded on
recognized exchanges or over-the-counter. There currently are limited options
markets in many countries, particularly emerging countries such as Latin
American countries, and the nature of the strategies adopted by the Adviser and
the extent to which those strategies are used will depend on the development of
such option markets. The primary risks associated with the use of options are
(i) imperfect correlation between the change in market value of investments
held, purchased or sold by a Fund and the prices of options relating to such
investments; and (ii) possible lack of a liquid secondary market for an option.
 
STRUCTURED INVESTMENTS
 
    The Emerging Markets Debt and Worldwide High Income Funds may invest a
portion of their assets in entities organized and operated solely for the
purpose of restructuring the investment characteristics of sovereign debt
obligations. This type of restructuring involves the deposit with or purchase by
an entity, such as a corporation or trust, of specified instruments (such as
commercial bank loans or Brady Bonds) and the issuance by that entity of one or
more classes of securities ("Structured Securities") backed by, or representing
interests in, the underlying instruments. The cash flow on the underlying
instruments may be apportioned among the maturities, payment priorities and
interest rate provisions, and the extent of the payments made with respect to
Structured Securities is dependent on the extent of the payments made with
respect to Structured Securities of the type in which each Fund anticipates it
will invest typically involve no credit enhancement, their credit risk generally
will be equivalent to that of the underlying instruments. Each Fund is permitted
to invest in a class of Structured Securities that is either subordinated or
unsubordinated to the right of payment of another class. Subordinated Structured
Securities typically have higher yields and present greater risks than
subordinated Structured Securities. Structured Securities are typically sold in
private placement transactions, and there currently is no active trading market
for Structured Securities.
 
STRUCTURED NOTES
 
    Structured Notes are derivatives on which the amount of principal repayment
and/or interest payments is based upon the movement of one or more factors.
These factors include, but are not limited to, currency exchange rates, interest
rates (such as the prime lending rate and LIBOR) and stock indices such as the
S&P 500 Index. In some cases, the impact of the movements of these factors may
increase or decrease through the use of multipliers or deflators. The use of
structured notes allows a Fund to tailor its investments to the specific risks
and returns the Adviser wishes to accept while avoiding or reducing certain
other risks.
 
                                       31
<PAGE>
SWAPS -- SWAP CONTRACTS
 
    Swaps and Swap Contracts are derivatives in the form of a contract or other
similar instrument in which two parties agree to exchange the returns generated
by a security, instrument, basket thereof or index for the returns generated by
another security, instrument, basket thereof or index. The payment streams are
calculated by reference to a specific security, index or instrument and an
agreed upon notional amount. The relevant indices include but are not limited
to, currencies, fixed interest rates, prices and total return on interest rate
indices, fixed income indeces, stock indices and commodity indices (as well as
amounts derived from arithmetic operations on these indices). For example, a
Fund may agree to swap the return generated by a fixed income index for the
return generated by a second fixed income index. The currency swaps in which the
Funds may enter will generally involve an agreement to pay interest streams in
one currency based on a specified index in exchange for receiving interest
streams denominated in another currency. Such swaps may involve initial and
final exchanges that correspond to the agreed upon notional amount.
 
    A Fund will usually enter into swaps on a net basis, i.e., the two return
streams are netted out in a cash settlement on the payment date or dates
specified in the instrument, with a Fund receiving or paying, as the case may
be, only the net amount of the two returns. A Fund's obligations under a swap
agreement will be accrued daily (offset against any amounts owing to the Fund)
and any accrued, but unpaid, net amounts owed to a swap counterparty will be
covered by the maintenance of a segregated account consisting of cash or liquid
securities. A Fund will not enter into any swap agreement unless the
counterparty meets the rating requirements set forth in guidelines established
by the Company's Board of Directors.
 
    Interest rate and total rate of return swaps do not involve the delivery of
securities, other underlying assets, or principal. Accordingly, the risk of loss
with respect to interest rate and total rate of return swaps is limited to the
net amount of payments that a Fund is contractually obligated to make. If the
other party to an interest rate or total rate of return swap defaults, a Fund's
risk of loss consists of the net amount of payments that the Fund is
contractually entitled to receive. In contrast, currency swaps may involve the
delivery of the entire principal value of one designated currency in exchange
for the other designated currency. Therefore, the entire principal value of a
currency swap may be subject to the risk that the other party to the swap will
default on its contractual delivery obligations. If there is a default by the
counterparty, a Fund may have contractual remedies pursuant to the agreements
related to the transaction. The swaps market has grown substantially in recent
years with a large number of banks and investment banking firms acting both as
principals and as agents utilizing standardized swap documentation. As a result,
the swaps market has become relatively liquid. Swaps that include caps, floors
and collars are more recent innovations for which standardized documentation has
not yet been fully developed and, accordingly, they are less liquid that
"traditional" swaps.
 
    The use of swaps is a highly specialized activity which involves investment
techniques and risks different from those associated with ordinary portfolio
securities transactions. If the Adviser is incorrect in its forecasts of market
values, interest rates and currency exchange rates, the investment performance
of the Funds would be less favorable than it would have been if this investment
technique were not used.
 
                             INVESTMENT LIMITATIONS
 
    Each Fund, except the Emerging Markets Debt and Global Fixed Income Funds,
is a diversified investment company under the 1940 Act, and is subject to the
following limitations: (a) the Fund may not invest more
 
                                       32
<PAGE>
than 5% of its total assets in the securities of any one issuer, except
obligations of the U.S. Government, its agencies and instrumentalities, and (b)
the Fund may not own more than 10% of the outstanding voting securities of any
one issuer. The Emerging Markets Debt and Global Fixed Income Funds are
non-diversified investment companies under the 1940 Act, which means that each
such Fund is not limited by the 1940 Act in the proportion of its total assets
that may be invested in the obligations of a single issuer. Thus, the Emerging
Markets Debt and Global Fixed Income Funds may invest a greater proportion of
their total assets in the securities of a smaller number of issuers and, as a
result, will be subject to greater risk resulting from such concentration of its
portfolio securities. The Emerging Markets Debt and Global Fixed Income Funds,
however, intend to comply with the diversification requirements imposed by the
Internal Revenue Code of 1986, as amended, for qualification as a regulated
investment company.
 
                           MANAGEMENT OF THE COMPANY
 
    INVESTMENT ADVISER.  Morgan Stanley Asset Management Inc. (the "Adviser") is
the investment adviser and administrator of the Company and each of the Funds
listed below. The Adviser provides investment advice and portfolio management
services pursuant to an investment advisory agreement (an "Investment Advisory
Agreement") and, subject to the supervision of the Company's Board of Directors,
makes each of the Fund's investment decisions, arranges for the execution of
portfolio transactions and generally manages each of the Fund's investments. The
Adviser is entitled to receive an advisory fee computed daily and paid quarterly
at the following annual rates for each of the following Funds:
 
<TABLE>
<S>                                                                     <C>
Emerging Markets Debt Fund............................................       1.25%
Global Fixed Income Fund..............................................       0.75%
High Yield Fund.......................................................       0.75%
Worldwide High Income Fund............................................       0.75%
</TABLE>
 
    The Adviser has agreed to a reduction in the fees payable to it and to
reimburse expenses to the applicable Fund, if necessary, if such fees or
expenses would cause the total annual operating expenses of the Fund to exceed
the maximums set forth in "Fund Expenses."
 
    The Adviser, with principal offices at 1221 Avenue of the Americas, New
York, NY 10020, conducts a worldwide portfolio management business. It provides
a broad range of portfolio management services to customers in the United States
and abroad. At September 30, 1996, the Adviser together with its affiliated
asset management companies managed investments totaling approximately $103.5
billion, including approximately $86.5 billion under active management and $17
billion as Named Fiduciary or Fiduciary Adviser. See "Management of the Company
- -- Investment Advisory and Administrative Agreements" in the Statement of
Additional Information.
 
    On October 31, 1996, MSGI purchased the parent company of Van Kampen
American Capital, Inc., which in turn is the parent company of VKAC
Distributors. Van Kampen American Capital, Inc. is the fourth largest
non-proprietary mutual fund provider in the United States with approximately $59
billion in assets under management or supervision as of September 30, 1996. On
May 31, 1997, MSGI and Dean Witter, Discover & Co. merged to form Morgan
Stanley, Dean Witter, Discover & Co. Prior thereto, MSGI was the parent of the
Adviser and the Distributor. The Adviser and the Distributor are now
subsidiaries of Morgan Stanley, Dean Witter, Discover & Co.
 
                                       33
<PAGE>
    PORTFOLIO MANAGERS -- The following individuals have primary portfolio
management responsibility for the Funds noted below:
 
    EMERGING MARKETS DEBT FUND -- PAUL GHAFFARI. Paul Ghaffari is a Managing
Director of Morgan Stanley. He joined the Adviser in June 1993 as a Vice
President and Portfolio Manager for the Morgan Stanley Emerging Markets Debt
Fund (a closed-end investment company). Prior to joining the Adviser, Mr.
Ghaffari was a Vice President in the Fixed Income Division of the Emerging
Markets Sales and Trading Department at Morgan Stanley. From 1983 to 1992, he
worked in LDC Sales and Trading Department and the Mortgage-Backed Securities
Department at J.P. Morgan & Co. Inc. and worked in the Treasury Department at
the Morgan Guaranty Trust Co. He holds a B.A. in International Relations from
Pomona College and an M.S. in Foreign Service from Georgetown University. Mr.
Ghaffari has had primary responsibility for managing the Portfolio's assets
since the Fund commenced operations.
 
    GLOBAL FIXED INCOME FUND -- J. DAVID GERMANY, MICHAEL B. KUSHMA, PAUL F.
O'BRIEN, ROBERT M. SMITH AND RICHARD B. WORLEY. J. David Germany shares primary
responsibility for managing the Fund's assets. He joined the Adviser in 1996 and
has been a portfolio manager with the Adviser's affiliate, Miller Anderson &
Sherrerd, LLP ("MAS") since 1991. He was Vice President & Senior Economist for
Morgan Stanley & Co. Incorporated ("Morgan Stanley") from 1989 to 1991. He
assumed responsibility for the Global Fixed Income and International Fixed
Income Portfolios of the MAS-advised MAS Funds in 1993 and the MAS Funds'
Multi-Asset-Class Portfolio in 1994. Mr. Germany was Senior Staff Economist
(International Finance and Macroeconomics) to the Council of Economic Advisors
- -- Executive Office of the President from 1986 through 1987 and an Economist
with the Board of Governors of the Federal Reserve System -- Division of
International Finance from 1983 through 1987. He holds an A.B. degree
(Valedictorian) from Princeton University and a Ph.D. in Economics from the
Massachusetts Institute of Technology. Michael B. Kushma, a Principal at Morgan
Stanley, joined the firm in 1987. He shares primary responsibility for managing
the Fund's assets. He was a member of Morgan Stanley's global fixed income
strategy group in the fixed income division from 1987-1995 where he became the
division's senior government bond strategist. He joined the Adviser in 1995
where he took responsibility for the global fixed income portfolios. Mr. Kushma
received an A.B. in economics from Princeton University in 1979, an M. Sc. in
economics from the London School of Economics in 1981 and an M.Phil. in
economics from Columbia University in 1983. Paul F. O'Brien shares primary
responsibility for managing the Fund's assets. He joined the Adviser and MAS in
1996. He was head of European Economics from 1993 through 1995 for JP Morgan and
as Principal Administrator from 1991 through 1992 for the Organization for
Economic Cooperation and Development. He assumed responsibility for the
MAS-advised MAS Funds' Global Fixed Income and International Fixed Income
Portfolios in 1996. Mr. O'Brien holds a B.S. degree from the Massachusetts
Institute of Technology and a Ph.D. in Economics from the University of
Minnesota. Robert Smith, a Principal of Morgan Stanley, joined the Adviser in
June 1994 and has had or shared primary responsibility for managing the Fund's
assets since July 1994. Prior to joining the Adviser he spent eight years as
Senior Portfolio Manager -- Fixed Income at the State of Florida Pension Fund.
Mr. Smith's responsibilities included active total-rate-of-return management of
long term portfolios and supervision of other fixed income managers. A graduate
of Florida State University with a B.S. in Business, Mr. Smith also received an
M.B.A. -- Finance from Florida State and holds a Chartered Financial Analyst
(CFA) designation. Richard B. Worley, a Managing Director of Morgan Stanley,
joined MAS in 1978. He assumed responsibility for the MAS Funds' Fixed Income
Portfolio in 1984, the MAS Funds' Domestic Fixed Income Portfolio in 1987, the
MAS Funds' Fixed Income Portfolio II in 1990, the MAS Funds' Balanced and
Special Purpose Fixed Income Portfolios in 1992, the MAS
 
                                       34
<PAGE>
Funds' Global Fixed Income and International Fixed Income Portfolios in 1993 and
the MAS Funds' Multi-Asset-Class Portfolio in 1994. Mr. Worley received a B.A.
in Economics from University of Tennessee and attended the Graduate School of
Economics at University of Texas.
 
    HIGH YIELD FUND -- ROBERT ANGEVINE, THOMAS L. BENNETT AND STEPHEN F. ESSER.
Robert Angevine is a Principal of the Adviser and the portfolio manager for high
yield investments. He has shared primary management responsibility for the Fund
since it commenced operations. Prior to joining the Adviser in October 1988, he
spent over eight years at Prudential Insurance, where he was responsible for the
largest open-end high yield mutual fund in the country. Mr. Angevine also
manages high yield assets for one of the largest corporate pension funds in the
country. His other experience includes international treasury operations at a
major pharmaceutical company and commercial banking. Mr. Angevine received an
M.B.A. from Fairleigh Dickinson University and a B.A. in Economics from
Lafayette College. Thomas L. Bennett shares responsibility for managing the
Fund's assets. He joined the Adviser in 1996 and has been a portfolio manager
with MAS since 1984. Mr. Bennett assumed responsibility for the MAS-advised MAS
Funds' Fixed Income Portfolio in 1984, the Domestic Fixed Income Portfolio in
1987, the High Yield Portfolio in 1985, the Fixed Income Portfolio II in 1990,
the Special Purpose Fixed Income and Balanced Portfolios in 1992 and the
Multi-Asset-Class Portfolio in 1994. Mr. Bennett also is the Chairman of the MAS
Funds and has a B.S. degree (Chemistry) and an M.B.A. from the University of
Cincinnati. Stephen F. Esser shares primary responsibility for managing the
Fund's assets. He joined the Adviser in 1996 and has been a portfolio manager
with MAS since 1988. He assumed responsibility for the MAS-advised MAS Funds'
High Yield Portfolio in 1989. Mr. Esser is a member of the New York Society of
Security Analysts and has a B.S. degree (Summa Cum Laude; Phi Beta Kappa) from
the University of Delaware.
 
    WORLDWIDE HIGH INCOME FUND -- ROBERT ANGEVINE AND PAUL GHAFFARI. Information
about Messrs. Angevine and Ghaffari is included under Emerging Markets Debt Fund
and High Yield Fund, respectively, above. Messrs. Angevine and Ghaffari have
shared primary management responsibility for the Fund since it commenced
operations.
 
    ADMINISTRATOR.  Morgan Stanley Asset Management Inc. (the "Administrator")
also provides the Company with administrative services pursuant to a separate
administration agreement (the "Administration Agreement"). The services provided
under the Administration Agreement are subject to the supervision of the
officers and Board of Directors of the Company and include day-to-day
administration of matters related to the corporate existence of the Company,
maintenance of its records, preparation of reports, supervision of the Company's
arrangements with its custodian and assistance in the preparation of the
Company's registration statements under federal and state laws. The
Administration Agreement also provides that the Administrator through its agents
will provide the Company dividend disbursing and transfer agent services. For
its services under the Administration Agreement, the Company pays the
Administrator a monthly fee which on an annual basis equals 0.25% of the average
daily net assets of each Fund.
 
    Under a sub-administration agreement between the Administrator and The Chase
Manhattan Bank ("Chase"), Chase Global Funds Services Company ("CGFSC"), a
corporate affiliate of Chase, provides certain administrative services to the
Company. The Administrator supervises and monitors such administrative services
provided by CGFSC. The services provided under the sub-administration agreement
are subject to the supervision of the Board of Directors of the Company. The
Board of Directors of the Company has approved the provision of services
described above pursuant to the Administration Agreement as being in the best
interests of
 
                                       35
<PAGE>
the Company. CGFSC's business address is 73 Tremont Street, Boston,
Massachusetts 02108-3913. For additional information on the Administration
Agreement, see "Management of the Company" in the Statement of Additional
Information.
 
    DIRECTORS AND OFFICERS.  Pursuant to the Company's Articles of
Incorporation, the Board of Directors decides upon matters of general policy and
reviews the actions of the Company's Adviser, Administrator and Distributor. The
Officers of the Company conduct and supervise its daily business operations.
 
    DISTRIBUTOR.  Van Kampen American Capital Distributors, Inc. ("VKAC
Distributors," or the "Distributor") serves as the distributor of the shares of
the Company. Under its distribution agreement (the "Distribution Agreement")
with the Company, VKAC Distributors sells shares of the Company upon the terms
and at the current offering price described in this Prospectus. VKAC
Distributors is not obligated to sell any specific number of shares of the
Company.
 
    The Company currently offers Class A shares, Class B shares and Class C
shares of the Funds other than the money market funds. The Funds that are money
market funds offer only a single class of shares. The Company may in the future
offer one or more classes of shares for the Fund that may have CDSCs or initial
sales charges or other distribution charges or a combination thereof different
from those of the classes currently offered.
 
    The Board of Directors of the Company has approved and adopted the
Distribution Agreement for the Company and a Plan for each class of the Funds
pursuant to Rule 12b-1 under the 1940 Act (each a "Plan" and together, the
"Plans"). Under each applicable Plan, the Distributor is entitled to receive
from the Funds a distribution fee, which is accrued daily and paid quarterly, at
a maximum rate of 0.75% of the Class B shares and Class C shares of each Fund,
on an annualized basis of the average daily net assets of such classes. The
actual amount of such compensation is agreed upon by the Company's Board of
Directors and by the Distributor. With respect to Class B Shares, the
Distributor expects to utilize substantially all of its fee to reimburse itself
for commissions paid to investment dealers, banks or financial services firms
that provide distribution services (each, a "Participating Dealer"). With
respect to Class C Shares, the Distributor expects to reallocate substantially
all of its fee to such Participating Dealers. The Distributor may, in its
discretion, voluntarily waive from time to time all or any portion of its
distribution fee and the Distributor is free to make additional payments out of
its own assets to promote the sale of Fund shares. Class A shares, Class B
shares and Class C shares are subject to a shareholder servicing fee at an
annual rate of 0.25% on an annualized basis of the average daily net assets of
such class of shares of a Fund. In addition to such payments, the Adviser may
use its advisory fees or other resources to pay expenses associated with
activities which might be construed to be financing the sale of the Funds'
shares including payments to third parties that provide assistance in the
distribution effort (in addition to selling shares and providing shareholder
services).
 
    The Plans obligate the Fund to accrue and pay to the Distributor the fee
agreed to under its Distribution Agreement. The Plans do not obligate the Fund
to reimburse the Distributor for the actual expenses the Distributor may incur
in fulfilling its obligations under the Plan. Thus, under each Plan, even if the
Distributor's actual expenses exceed the fee payable to it thereunder at any
given time, the Fund will not be obligated to pay more than that fee. If the
Distributor's actual expenses are less than the fee it receives, the Distributor
will retain the full amount of the fee.
 
    Each Plan for a class of Company shares, under the terms of Rule 12b-1, will
remain in effect only if approved at least annually by the Company's Board of
Directors, including those directors who are not
 
                                       36
<PAGE>
"interested persons" of the Company as that term is defined in the 1940 Act and
who have no direct or indirect financial interest in the operation of a Plan or
in any agreements related thereto ("12b-1 Directors"). Each Plan may be
terminated at any time by a vote of a majority of the 12b-1 Directors or by a
vote of a majority of the outstanding voting securities of the applicable class
of the Fund. The fee set forth above will be paid by the appropriate class to
the Distributor unless and until a Plan is terminated or not renewed. The
Company intends to operate each Plan in accordance with its terms and the NASD
Conduct Rules concerning sales charges.
 
    PAYMENTS TO FINANCIAL INSTITUTIONS.  The Adviser or its affiliates may
compensate certain financial institutions for the continued investment of their
customers' assets in the Fund pursuant to the advice of such financial
institutions. These payments will be made directly by the Adviser or its
affiliates from their assets, and will not be made from the assets of the
Company or by the assessment of a sales charge on shares. Such financial
institutions may also perform certain shareholder or recordkeeping services that
would otherwise be performed by CGFSC. The Adviser may elect to enter into a
contract to pay the financial institutions for such services.
 
    EXPENSES.  The Fund is responsible for payment of certain other fees and
expenses (including professional fees, custodial fees and printing and mailing
costs) specified in the Administration and Distribution Agreements.
 
                               PURCHASE OF SHARES
 
GENERAL
 
    The Company offers three classes of shares to the public on a continuous
basis through the Distributor as principal underwriter, which is located at One
Parkview Plaza, Oakbrook Terrace, Illinois 60181. Shares are also offered
through members of the NASD who are acting as securities dealers ("dealers") and
NASD members or eligible non-NASD members who are acting as brokers or agents
for investors ("brokers"). The term "dealers" and "brokers" are sometimes
referred to herein as "Participating Dealers."
 
    Initial investments must be at least $500 for each class of shares, and
subsequent investments must be at least $25 for each class of shares. The $500
minimum may be waived by the Distributor for plans involving periodic
investments. Shares of the Company may be sold in foreign countries where
permissible. The Company and the Distributor reserve the right to refuse any
order for the purchase of shares. The Company also reserves the right to suspend
the sale of the Company's shares in response to conditions in the securities
markets or for other reasons.
 
    Shares of the Company may be purchased on any business day through
Participating Dealers. Shares may also be purchased by completing the
application accompanying this Prospectus and forwarding the application, through
the Participating Dealer, to the shareholder service agent, ACCESS Investor
Services, Inc., a wholly-owned subsidiary of Van Kampen American Capital, Inc.
("ACCESS"). When purchasing shares of the Company, investors must specify
whether the purchase is for Class A shares, Class B shares or Class C shares.
 
    Shares are offered at the next determined net asset value per share, plus a
front-end or contingent deferred sales charge depending on the class of shares
chosen by the investor, as shown in the tables herein. Net asset value per share
for each class is determined once daily as of the close of trading on the New
York Stock Exchange (the "NYSE") (currently 4:00 p.m., Eastern Time) each day
the NYSE is open. Net asset value per share for each
 
                                       37
<PAGE>
class is determined by dividing the value of the Fund's securities, cash and
other assets (including accrued interest) attributable to such class less all
liabilities (including accrued expenses) attributable to such class by the total
number of shares of the class outstanding.
 
    Generally, the net asset values per share of the Class A shares, Class B
shares and Class C shares are expected to be substantially the same. Under
certain circumstances, however, the per share net asset values of the Class A
shares, Class B shares and Class C shares may differ from one another,
reflecting the daily expense accruals of the distribution and the higher
transfer agency fees applicable with respect to the Class B shares and Class C
shares and the differential in the dividends paid on the classes of shares. The
price paid for shares purchased is based on the next calculation of net asset
value (plus sales charges, where applicable) after an order is received by a
Participating Dealer provided such order is transmitted to the Distributor prior
to the Distributor's close of business on such day. Orders received by
Participating Dealers after the close of the NYSE are priced based on the next
close provided they are received by the Distributor prior to the Distributor's
close of business on such day. It is the responsibility of Participating Dealers
to transmit orders received by them to the Distributor so they will be received
prior to such time.
 
    Each class of shares represents an interest in the same portfolio of
investments, has the same rights and is identical in all respects, except that
(i) Class B shares and Class C shares bear the expenses of the deferred sales
arrangement and any expenses (including the distribution fee and incremental
transfer agency costs) resulting from such sales arrangement, (ii) generally,
each class has exclusive voting rights with respect to approvals of the Rule
12b-1 distribution plan to which its distribution fee or service fee is paid and
(iii) Class B shares are subject to a conversion feature. Each class has
different exchange privileges and certain different shareholder service options
available. The net income attributable to Class B shares and Class C shares and
the dividends payable on Class B shares and Class C shares will be reduced by
the amount of the distribution fee and incremental transfer agency expenses
associated with such class of shares. Sales personnel of Participating Dealers
distributing the Company's shares and other persons entitled to receive
compensation for selling such shares may receive differing compensation for
selling Class A shares, Class B shares or Class C shares.
 
    In deciding which class of shares to purchase, investors should take into
consideration their investment goals, present and anticipated purchase amounts,
time horizons and temperments. Investors should consider whether, during the
anticipated life of their investment in the Fund, the accumulated distribution
fees and contingent deferred sales charges on Class B shares prior to conversion
or Class C shares would be less than the initial sales charge on Class A shares
purchased at the same time, and to what extent such differential would be offset
by the higher dividends per share on Class A shares. To assist investors in
making this determination, the table under the caption "Fund Expenses" sets
forth examples of the charges applicable to each class of shares. In this
regard, Class A shares may be more beneficial to the investor who qualifies for
reduced initial sales charges or purchases shares at net asset value, as
described herein under "Purchase of Shares--Class A Shares." For these reasons,
it is presently the policy of the Distributor not to accept any order of
$500,000 or more for Class B Shares or any order of $1 million or more for Class
C shares as it ordinarily would be more beneficial for such an investor to
purchase Class A shares.
 
    Class A shares are not subject to an ongoing distribution fee and,
accordingly, receive correspondingly higher dividends per share. However,
because initial sales charges are deducted at the time of purchase for most
accounts under $1 million, investors in Class A shares do not have all their
funds invested initially and, therefore, initially own fewer shares. Other
investors might determine that it is more advantageous to purchase either
 
                                       38
<PAGE>
Class B shares or Class C shares and have all their funds invested initially,
although remaining subject to a contingent deferred sales charge. Ongoing
distribution fees on Class B shares and Class C shares will be offset to the
extent of the additional funds originally invested and any return realized on
those funds. However, there can be no assurance as to the return, if any, which
will be realized on such additional funds. For investments held for ten years or
more, the relative value upon liquidation of the three classes tends to favor
Class A or Class B shares, rather than Class C shares.
 
    Class A shares may be appropriate for investors who prefer to pay the sales
charge up front, want to take advantage of the reduced sales charges available
on larger investments, wish to maximize their current income from the start,
prefer not to pay redemption charges and/or have a longer-term investment
horizon. Class B shares may be appropriate for investors who wish to avoid a
front-end sales charge, put 100% of their investment dollars to work
immediately, and/or have a longer-term investment horizon. Class C shares may be
appropriate for investors who wish to avoid a front-end sales charge, put 100%
of their investment dollars to work immediately, have a shorter-term investment
horizon and/or desire a short contingent deferred sales charge schedule.
 
    The distribution expenses incurred by the Distributor in connection with the
sale of the shares will be reimbursed, in the case of Class A shares, from the
proceeds of the initial sales charge and, in the case of Class B shares and
Class C shares, from the proceeds of the ongoing distribution fee and any
contingent deferred sales charge incurred upon redemption within five years or
one year, respectively, of purchase. Sales personnel of broker-dealers
distributing the Fund's shares and other persons entitled to receive
compensation for selling such shares may receive differing compensation for
selling such shares. Investors should understand that the purpose and function
of the contingent deferred sales charge and ongoing distribution fee with
respect to Class B shares and Class C shares are the same as those of the
initial sales charge with respect to Class A shares. See "Distribution Plans."
 
    The Distributor may from time to time implement programs under which a
Participating Dealer's sales force may be eligible to win nominal awards for
certain sales efforts or under which the Distributor will reallow to any
Participating Dealer that sponsors sales contests or recognition programs
conforming to criteria established by the Distributor, or participates in sales
programs sponsored by the Distributor, an amount not exceeding the total
applicable sales charges on the sales generated by the Participating Dealer at
the public offering price during such programs. Other programs provide, among
other things and subject to certain conditions, for certain favorable
distribution arrangements for shares of the Company. Also, the Distributor in
its discretion may from time to time, pursuant to objective criteria established
by the Distributor, pay fees to, and sponsor business seminars for, qualifying
authorized dealers for certain services or activities which are primarily
intended to result in sales of shares of the Company. Fees may include payment
for travel expenses, including lodging, incurred in connection with trips taken
by invited registered representatives and members of their families to locations
within or outside of the United States for meetings or seminars of a business
nature. Such fees paid for such services and activities with respect to a Fund
will not exceed in the aggregate 1.25% of the average total daily net assets of
the Fund on an annual basis. All of the foregoing payments are made by the
Distributor out of its own assets. These programs will not change the price an
investor will pay for shares or the amount that a Fund will receive from such
sale.
 
                                       39
<PAGE>
CLASS A SHARES
 
    The public offering price of Class A shares is the next determined net asset
value plus a sales charge, as set forth herein.
 
SALES CHARGE TABLE
 
<TABLE>
<CAPTION>
                                                                     REALLOWED TO DEALERS
                                    AS % OF         AS % OF NET        (AS % OF OFFERING
SIZE OF INVESTMENT              OFFERING PRICE    AMOUNT INVESTED           PRICE)
- ------------------------------  ---------------  -----------------  -----------------------
<S>                             <C>              <C>                <C>
Less than $100,000............          4.75              4.99                  4.25
$100,000 but less than
 $250,000.....................          3.75              3.90                  3.25
$250,000 but less than
 $500,000.....................          2.75              2.83                  2.25
$500,000 but less than
 $1,000,000...................          2.00              2.04                  1.75
$1,000,000 or more*...........         *                 *                     *
</TABLE>
 
- --------------
 * No sales charge is payable at the time of purchase on investments of $1
   million or more, although for such investments the Funds impose a contingent
   deferred sales charge of 1.00% in the event of certain redemptions within one
   year of the purchase. A commission will be paid to brokers, dealers or
   financial intermediaries who initiate and are responsible for purchases of $1
   million or more as follows: 1.00% on sales to $2 million, plus 0.80% on the
   next million, plus 0.50% on the excess over $3 million. See "-- Purchase of
   Shares Purchase of Class B Shares" and "-- Purchase of Class C Shares" for
   additional information with respect to contingent deferred sales charges.
 
    In addition to the reallowances from the applicable public offering price
described herein, the Distributor may, from time to time, pay or allow
additional reallowances or promotional incentives, in the form of cash or other
compensation, to Participating Dealers that sell shares of the Company.
Participating Dealers which are reallowed all or substantially all of the sales
charges may be deemed to be underwriters for purposes of the Securities Act of
1933, as amended.
 
    The Distributor may also pay financial institutions (which may include
banks) and other industry professionals that provide services to facilitate
transactions in shares of the Company for their clients a transaction fee up to
the level of the reallowance allowable to Participating Dealers described
herein. Such financial institutions, other industry professionals and
Participating Dealers are hereinafter referred to as "Service Organizations."
Banks are currently prohibited under the Glass-Steagall Act from providing
certain underwriting or distribution services. If banking firms were prohibited
from acting in any capacity or providing any of the described services, the
Distributor would consider what action, if any, would be appropriate. The
Distributor does not believe that termination of a relationship with a bank
would result in any material adverse consequences to the Company. State
securities laws regarding registration of banks and other financial institutions
may differ from the interpretations of federal law expressed herein and banks
and other financial institutions may be required to register as dealers pursuant
to certain state laws.
 
QUANTITY DISCOUNTS
 
    Investors purchasing Class A shares may, under certain circumstances, be
entitled to pay reduced sales charges. The circumstances under which such
investors may pay reduced sales charges are described below.
 
    Investors or their Participating Dealers must notify the Company whenever a
quantity discount is applicable to purchases. Upon such notification, an
investor will receive the lowest applicable sales charge. Quantity discounts may
be modified or terminated at any time. For more information about quantity
discounts, investors should contact their Participating Dealer or the
Distributor.
 
                                       40
<PAGE>
    A person eligible for a reduced sales charge includes an individual, their
spouse and children under 21 years of age, and any corporation, partnership or
sole proprietorship which is 100% owned, either alone or in combination, by any
of the foregoing; a trustee or other fiduciary purchasing for a single trust
estate or single fiduciary account, or a "company" as defined in Section 2(a)(8)
of the 1940 Act.
 
    As used herein, "Participating Funds" refers to all Funds of Morgan Stanley
Fund, Inc.
 
    VOLUME DISCOUNTS.  The size of investment shown in the preceding table
applies to the total dollar amount being invested by any person in shares of a
Fund or in any combination of shares of the Fund and shares of other
Participating Funds, although other Participating Funds may have different sales
charges.
 
    CUMULATIVE PURCHASE DISCOUNT.  The size of investment shown in the preceding
table may also be determined by combining the amount being invested in shares of
the Participating Funds plus the current offering price of all shares of the
Participating Funds which have been previously purchased and are still owned.
 
    LETTER OF INTENT.  A Letter of Intent provides an opportunity for an
investor to obtain a reduced sales charge by aggregating the investments over a
13-month period to determine the sales charge as outlined in the preceding
table. The size of investment shown in the preceding table also includes
purchases of shares of the Participating Funds over a 13-month period based on
the total amount of intended purchases plus the value of all shares of the
Participating Funds previously purchased and still owned. An investor may elect
to compute the 13-month period starting up to 90 days before the date of
execution of a Letter of Intent. Each investment made during the period receives
the reduced sales charge applicable to the total amount of the investment goal.
If the goal is not achieved within the period, the investor must pay the
difference between the charges applicable to the purchases made and the charges
previously paid. The initial purchase must be for an amount equal to at least 5%
of the minimum total purchased amount of the level selected. If trades not
initially made under a Letter of Intent subsequently qualify for a lower sales
charge through the 90-day back-dating provisions, an adjustment will be made at
the expiration of the Letter of Intent to give effect to the lower charge. Such
adjustments in sales charge will be used to purchase additional shares for the
shareholder at the applicable discount category. Additional information is
contained in the application form accompanying this Prospectus.
 
OTHER PURCHASE PROGRAMS
 
    Purchasers of Class A shares may be entitled to reduced initial sales
charges in connection with unit trust reinvestment programs and purchases by
registered representatives of selling firms or purchases by persons affiliated
with the Company or the Distributor. The Company reserves the right to modify or
terminate these arrangements at any time.
 
    UNIT INVESTMENT TRUST REINVESTMENT PROGRAMS.  The Company permits
unitholders of unit investment trusts to reinvest distributions from such trusts
in Class A shares of the Company at net asset value with no minimum initial or
subsequent investment requirement if the administrator of an investor's unit
investment trust program meets certain uniform criteria relating to cost savings
by the Company and the Distributor. The total sales charge for all other
investments made from unit trust distributions will be 1.00% of the offering
price (1.01% of net asset value). Of this amount, the Distributor will pay to
the Participating Dealer, if any, through which such participation in the
qualifying program was initiated 0.50% of the offering price as a dealer
concession or agency commission. Persons desiring more information with respect
to this program, including the applicable terms and conditions thereof, should
contact their Participating Dealer or the Distributor.
 
                                       41
<PAGE>
    The administrator of such a unit investment trust must have an agreement
with the Distributor pursuant to which the administrator will (1) submit a
single bulk order and make payment with a single remittance for all investments
in a Fund during each distribution period by all investors who choose to invest
in the Fund through the program and (2) provide ACCESS with appropriate backup
data for each participating investor in a computerized format fully compatible
with ACCESS' processing system.
 
    As further requirements for obtaining these special benefits, the Company
also requires that all dividends and other distributions by a Fund be reinvested
in additional shares without any systematic withdrawal program. There will be no
minimum for reinvestments from unit investment trusts. The Company will send
account activity statements to such participants on a monthly basis only, even
if their investments are made more frequently. The Company reserves the right to
modify or terminate this program at any time.
 
    NAV PURCHASE OPTIONS.  Class A shares of a Fund may be purchased at net
asset value, upon written assurance that the purchase is made for investment
purposes and that the shares will not be resold except through redemption by the
Fund by:
 
  (1) Current or retired Trustees/Directors of funds advised by an Adviser and
     such persons' families and their beneficial accounts.
 
  (2) Current or retired directors, officers and employees of MSGI or VK/AC
     Holding, Inc. and any of their subsidiaries, employees of an investment
     subadviser to any fund described in (1) above or an affiliate of such
     subadviser, and such persons' families and their beneficial accounts.
 
  (3) Directors, officers, employees and registered representatives of financial
     institutions that have a selling group agreement with the Distributor and
     their spouses and children under 21 years of age when purchasing for any
     accounts they beneficially own, or, in the case of any such financial
     institution, when purchasing for retirement plans for such institution's
     employees.
 
  (4) Registered investments advisers, trust companies and bank trust
     departments investing on their own behalf or on behalf of their clients
     provided that the aggregate amount invested in a Fund alone, or in any
     combination of shares of the Fund and shares of other Participating Funds
     as described herein under "Purchase of Shares -- Class A Shares -- Volume
     Discounts," during the 13-month period commencing with the first investment
     pursuant hereto equals at least $1 million. The Distributor may pay
     Participating Dealers through which purchases are made an amount up to
     0.50% of the amount invested, over a 12-month period following such
     transaction.
 
  (5) Trustees and other fiduciaries purchasing shares for retirement plans of
     organizations with retirement plan assets of $3 million or more and which
     invest in multiple fund families through national wirehouse alliance
     programs. The Distributor may pay commissions of up to 1.00% for such
     purchases.
 
  (6) Accounts as to which a broker, dealer or financial intermediary charges an
     account management fee ("wrap accounts"), provided the broker, dealer or
     financial intermediary has a separate agreement with the Distributor.
 
  (7) Investors purchasing shares of a Fund with redemption proceeds from other
     mutual fund complexes on which the investor has paid a front-end sales
     charge or was subject to a deferred sales charge, whether or not paid, if
     such redemption has occurred no more than 30 days prior to such purchase.
 
                                       42
<PAGE>
  (8) Trusts created under pension, profit sharing or other employee benefit
     plans qualified under Section 401(a) of the Code, or custodial accounts
     held by a bank created pursuant to Section 403(b) of the Code and sponsored
     by non-profit organizations defined under Section 501(c)(3) of the Code and
     assets held by an employer or trustee in connection with an eligible
     deferred compensation plan under Section 457 of the Code. Such plans will
     qualify for purchases at net asset value provided, for plans initially
     establishing accounts with the Distributor in the Participating Funds after
     February 1, 1997, that (1) the initial amount invested in the Participating
     Funds is at least $500,000 or (2) such shares are purchased by an employer
     sponsored plan with more than 100 eligible employees. Such plans that have
     been established with a Participating Fund or have received proposals from
     the Distributor prior to February 1, 1997 based on net asset value purchase
     privileges previously in effect will be qualified to purchase shares of the
     Participating Funds at net asset value for accounts established on or
     before May 1, 1997. Section 403(b) and similar accounts for which Van
     Kampen American Capital Trust Company serves as custodian will not be
     eligible for net asset value purchases based on the aggregate investment
     made by the plan or the number of eligible employees, except under certain
     uniform criteria established by the Distributor from time to time. Prior to
     February 1, 1997, a commission will be paid to dealers who initiate and are
     responsible for such purchases within a rolling twelve month period as
     follows: 1.00% on sales up to $5 million, plus 0.50% on the next $5
     million, plus $0.25 on the excess over $10 million. For purchases on
     February 1, 1997 and thereafter, a commission will be paid as follows:
     1.00% on sales up to $2 million, plus 0.80% on the next $1 million, plus
     0.50% on the next $47 million, plus 0.25% on the excess over $50 million
 
  (9) Individuals who are members of a "qualified group." For this purpose, a
     qualified group is one which (i) has been in existence for more than six
     months, (ii) has a purpose other than to acquire shares of the Fund or
     similar investments, (iii) has given and continues to give its endorsement
     or authorization, on behalf of the group, for purchase of shares of the
     Fund and other Participating Funds, (iv) has a membership that the
     authorized dealer can certify as to the group's members and (v) satisfies
     other uniform criteria established by the Distributor for the purpose of
     realizing economies of scale in distributing such shares. A qualified group
     does not include one whose sole organizational nexus, for example, is that
     its participants are credit card holders of the same institution, policy
     holders of an insurance company, customers of a bank or broker-dealer,
     clients of an investment advisor or other similar groups. Shares purchased
     in each group's participant's account in connection with this privilege
     will be subject to a contingent deferred sales charge of one percent in the
     event of redemption within one year of purchase, and a commission will be
     paid to authorized dealers who initiate and are responsible for such sales
     to each individual as follows: 1.00% on sales to $2 million, plus 0.80% on
     the next million and 0.50% on the excess over $3 million.
 
    The term "families" includes a person's spouse, children and grandchildren
under 21 years of age, parents and a person's spouse's parents.
 
    Purchase orders made pursuant to clause (4) may be placed either through
authorized dealers as described above or directly with ACCESS by the investment
adviser, trust company or bank trust department, provided that ACCESS receives
federal funds for the purchase by the close of business on the next business day
following
 
                                       43
<PAGE>
acceptance of the order. An authorized dealer may charge a transaction fee for
placing an order with respect to such shares. Authorized dealers will be paid a
service fee as described herein under "Distribution Plans" on purchases made as
described in (3) through (9) above.
 
    The Company may terminate, or amend the terms of, offering shares of the
Fund at net asset value to the foregoing groups at any time.
 
RETIREMENT PLANS
 
    Van Kampen American Capital Trust Company ("VK Trust") provides retirement
plan services and documents and can establish investor accounts in IRAs. This
includes Simplified Employee Pension Plan ("SEP") and IRA accounts. Brochures
describing such plans and materials for establishing them are available from VK
Trust upon request. The brochures for custodial accounts with VK Trust describe
the current fees payable to VK Trust for its services as custodian. Investors
should consult with their own tax advisers before establishing a retirement
plan.
 
PURCHASE OF CLASS B SHARES
 
    Class B shares of the Funds may be purchased at net asset value without an
initial sales charge. However, a CDSC will be imposed on certain Class B shares
redeemed within five years of purchase. The charge is assessed on an amount
equal to the lesser of the then-current market value of the Class B shares
redeemed or the total cost of such shares. Accordingly, the CDSC will not be
applied to dollar amounts representing an increase in the net asset values above
the initial purchase price of the shares being redeemed. In addition, no charge
is assessed on redemptions of Class B shares derived from reinvestment of
dividends or capital gains distributions.
 
    In determining whether the CDSC is applicable to a redemption, the
calculation is made in the manner that results in the lowest possible rate.
Therefore, it is assumed that the redemption is first of any Class B shares in
the shareholder's account that represent reinvested dividends and/or
distributions, and/or of Class B shares held longer than five years after
purchase, and next of Class B shares held the longest during the initial
five-year period after purchase. The amount of the contingent deferred sales
charge, if any, will vary depending on the number of years from the time of
purchase of Class B shares until the redemption of such shares (the "holding
period"). The following table sets forth the rates of the CDSC.
 
CONTINGENT DEFERRED SALES CHARGE
 
<TABLE>
<CAPTION>
                                                              SALES CHARGE AS
                                                               PERCENTAGE OF
                                                                    THE
                                                               DOLLAR AMOUNT
YEAR SINCE PURCHASE                                              SUBJECT TO
PAYMENT WAS MADE                                                   CHARGE
- ------------------------------------------------------------  ----------------
<S>                                                           <C>
First.......................................................       4.00%
Second......................................................       4.00%
Third.......................................................       3.00%
Fourth......................................................       2.50%
Fifth.......................................................       1.50%
Thereafter..................................................       None*
</TABLE>
 
- --------------
* As described more fully below, Class B shares automatically convert to Class A
  shares after the eighth year following purchase.
 
                                       44
<PAGE>
    Proceeds from any CDSC are paid to the Distributor and are used by the
Distributor to defray its expenses related to providing distribution-related
services to the Company in connection with the sale of the Class B shares. The
Distributor will make payments to the Participating Dealers that handle the
purchases of such shares at a rate not in excess of 4.00% of the purchase price
of such shares at the time of purchase and expects to pay to Participating
Dealers a portion of its distribution fee under the Plan as described under
"Management of the Company -- Distributor" above. Additionally, the Distributor
may pay additional promotional incentives, in the form of cash or other
compensation, to authorized dealers that sell Class B shares of the Funds. The
combination of the CDSC and the distribution/service fee facilitates the ability
of the Company to sell the Class B shares without a sales charge being deducted
at the time of purchase.
 
    AUTOMATIC CONVERSION TO CLASS A SHARES.  After the eighth year following
purchase, Class B shares will automatically convert to Class A shares and will
no longer be subject to the higher distribution and service fees. Such
conversion will be on the basis of the relative net asset values of the two
classes, without the imposition of any sales load, fee or other charge. Under
current tax law, the conversion is not a taxable event to the shareholder.
 
    Class B shares may also be purchased through an Automatic Investment Plan as
described below.
 
PURCHASE OF CLASS C SHARES
 
    Class C shares of the Funds may be purchased at the net asset value per
share and such shares are subject to a CDSC at the rate of 1.00% of the lesser
of the current market value of the shares redeemed or the total cost of such
shares for shares that are redeemed within one year of purchase. The Distributor
will make payments to the Participating Dealers that handle the purchases of
such shares at the rate of 1.00% of the purchase price of such shares at the
time of purchase and expects to pay to Participating Dealers most of its
distribution fee, with respect to such shares, under the Rule 12b-1 Plan for
such class of shares, as described under "Management of the Company --
Distributor" above. In determining whether a CDSC is payable, and, if so, the
amount of the fee or charge, it is assumed that shares not subject to such fee
or charge are the first redeemed.
 
    WAIVER OF CDSC.  The CDSC will be waived on the redemption of Class B or
Class C shares (i) following the death or initial determination of disability
(as defined in the Code) of a shareholder; (ii) certain distributions from an
IRA or other retirement plan; (iii) to the extent that shares redeemed have been
withdrawn from a Systematic Withdrawal Plan, up to a maximum amount of 12% per
year from a shareholder account based on the value of the account at the time
the Withdrawal Plan is established; or (iv) effected pursuant to the right of
the Company to liquidate a shareholder's account as described herein under
"Redemption of Shares." A shareholder, or his or her representative, must notify
the Company's Transfer Agent prior to the time of redemption if such
circumstances exist and the shareholder is eligible for this waiver. The
shareholder is responsible for providing sufficient documentation to the
Transfer Agent to verify the existence of such circumstances. For information on
the imposition and waiver of the CDSC, contact Investor Services at
1-800-282-4404.
 
AUTOMATIC REINVESTMENT OF DIVIDENDS AND DISTRIBUTIONS
 
    No initial sales charge or CDSC will be payable on the shares of the Funds
or class thereof purchased through the automatic reinvestment of dividends and
distributions on shares of the Funds.
 
                                       45
<PAGE>
REINSTATEMENT PRIVILEGE OF EACH CLASS
 
    A shareholder who has redeemed Class A shares of a Participating Fund may
reinvest up to the full amount received at net asset value at the time of the
reinvestment in Class A shares of the Funds without payment of a sales charge. A
shareholder who has redeemed Class B shares of a Fund and paid a CDSC upon such
redemption may reinvest up to the full amount received upon redemption in Class
A shares at net asset value with no initial sales charge. A Class C shareholder
who has redeemed shares of a Fund may reinstate any portion or all of the net
proceeds of such redemption in Class C shares of that Fund with credit given for
any CDSC paid upon such redemption. The reinstatement privilege as to any
specific Class A, Class B or Class C shares must be exercised within 180 days of
the redemption. The Transfer Agent must receive from the shareholder or the
shareholder's Participating Dealer both a written request for reinstatement and
a check or wire which does not exceed the redemption proceeds. The written
request must state that the reinvestment is made pursuant to this reinstatement
privilege. If a loss is realized on the redemption of Class A shares, the
reinvestment may be subject to the "wash sale" rules if made within 30 days of
the redemption, resulting in a postponement of the recognition of such loss for
federal income tax purposes. The reinstatement privilege may be terminated or
modified at any time. Reinstatement at net asset value is also offered to
participants in those eligible retirement plans held or administered by Van
Kampen American Capital Trust Company for repayment of principal (and interest)
on their borrowings on such plans. See the Statement of Additional Information
for further discussion of waiver provisions.
 
                              SHAREHOLDER SERVICES
 
    The Company offers a number of shareholder services designed to facilitate
investment in its shares at little or no extra costs to the investor. Below is a
description of such services. Unless otherwise described below, each of these
services may be modified or terminated by the Company at any time.
 
    INVESTMENT ACCOUNT.  ACCESS, transfer agent for the Company and a
wholly-owned subsidiary of Van Kampen American Capital, Inc. performs
bookkeeping, data processing and administration services related to the
maintenance of shareholder accounts. Each shareholder has an investment account
which shares are held by ACCESS. Except as described herein, after each share
transaction in an account, the shareholder receives a statement showing the
activity in the account. Each shareholder will receive statements at least
quarterly from ACCESS showing any reinvestments of dividends and capital gains
distributions and any other activity in the account since the preceding
statement. Such shareholders also will receive separate confirmations for each
purchase or sale transaction other than reinvestment of dividends and capital
gains distributions and systematic purchases or redemptions. Additions to an
investment account may be made at any time by purchasing shares through
authorized brokers, dealers or financial intermediaries or by mailing a check
directly to ACCESS.
 
    SHARE CERTIFICATES.  Generally, the Company will not issue share
certificates. However, upon written or telephone request to the Company, a share
certificate will be issued, representing shares (with the exception of
fractional shares) of the Company. A shareholder will be required to surrender
such certificates upon redemption or transfer thereof. In addition, if such
certificates are lost the shareholder must write to the Morgan Stanley Fund c/o
ACCESS, P.O. Box 419256, Kansas City, MO 64141-9256, requesting an "affidavit of
loss" and to obtain a Surety Bond in a form acceptable to ACCESS. On the date
the letter is received ACCESS will calculate a fee for replacing the lost
certificate equal to no more than 2.00% of the net asset value of the issued
shares and bill the party to whom the replacement certificate was mailed.
 
                                       46
<PAGE>
    REINVESTMENT PLAN.  A convenient way for investors to accumulate additional
shares is by accepting dividends and capital gains distributions in shares of
the applicable Fund. Such shares are acquired at net asset value (without sales
charge) on the record date of such dividend or distribution. Unless the
shareholder instructs otherwise, the reinvestment plan is automatic. This
instruction may be made by telephone by calling (800) 282-4404 or (800) 772-8889
for the hearing impaired, or in writing to ACCESS. The investor may, on the
initial application or prior to any declaration, instruct that dividends be paid
in cash and capital gains distributions be reinvested at net asset value, or
that both dividends and capital gains distributions be paid in cash. For further
information, see "Dividends and Distributions."
 
    AUTOMATIC INVESTMENT PLAN.  An automatic investment plan is available under
which a shareholder can authorize ACCESS to charge a bank account on a regular
basis to invest pre-determined amounts in the Funds. Additional information is
available from the Distributor or authorized brokers, dealers or financial
intermediaries.
 
    DIVIDEND DIVERSIFICATION.  A shareholder may, upon written request or by
completing the appropriate section of the application form accompanied by this
Prospectus or by calling (800) 282-4404 or (800) 772-8889 for the hearing
impaired, elect to have all dividends and other distributions paid on a class of
shares of the Company invested into shares of the same class of any other Fund
so long as pre-existing account for such class of shares exists for such
shareholder. Both accounts must also be of the same type, either non-retirement
or retirement. Any two non-retirement accounts can be used. If the accounts are
retirement accounts, they must both be for the same class and of the same type
of retirement plan (e.g. IRA, 403(b)(7), 401(k), Keogh) and for the benefit of
the same individual.
 
    If the qualified pre-existing account does not exist, the shareholder must
establish a new account subject to minimum investment and other requirements of
the Fund into which distributions would be invested. Distributions are invested
into the selected fund at its net asset value as of the payable date of the
distribution only if shares of such selected fund have been registered for sale
in the investor's state.
 
    RETIREMENT PLANS.  Eligible investors may establish individual retirement
accounts ("IRAs"); SEP; and pension and profit sharing plans; 401(k) plans; or
Section 403(b)(7) plans in the case of employees of public school systems and
certain non-profit organizations. Documents and forms containing detailed
information regarding these plans are available from the Distributor. Van Kampen
American Capital Trust Company serves as custodian under the IRA, 403(b)(7) and
Keogh plans. Details regarding fees, as well as full plan administration for
profit sharing, pension and 401(k) plans are available from the Distributor.
 
    EXCHANGE PRIVILEGE.  Shares of the Company may be exchanged with shares of
the same class of another Participating Fund, subject to certain limitations.
Before effecting an exchange, shareholders in the Company should obtain and read
a current prospectus of the Participating Funds into which the exchange is to be
made. SHAREHOLDERS MAY ONLY EXCHANGE INTO SUCH OTHER PARTICIPATING FUNDS AS ARE
LEGALLY AVAILABLE FOR SALE IN THEIR STATE.
 
    To be eligible for exchange, shares of a Fund generally must have been
registered in the shareholder's name for at least 30 days prior to an exchange.
Shares of a Fund registered in a shareholder's name for less than 30 days may
only be exchanged upon receipt of prior approval of the Adviser. Under normal
circumstances, it is the policy of the Adviser not to approve such requests.
 
                                       47
<PAGE>
    Class A shares of Funds that generally impose an initial sales charge are
not subject to any sales charge upon exchange into the Fund.
 
    No sales charge is imposed upon the exchange of a Class B share or a Class C
share. The contingent deferred sales charge schedule and conversion schedule
applicable to a Class B share or a Class C share acquired through the exchange
privilege is determined by reference to the fund from which such shares
originally was purchased. The holding period of a Class B share or a Class C
share acquired through the exchange privilege is determined by reference to the
date such share originally was purchased.
 
    Exchange of shares are sales and may result in a gain or loss for federal
income tax purposes. If the shares exchanged have been held for less than 91
days, the sales charge paid on such shares is not included in the tax basis of
the exchanged shares, but is carried over and included in the tax basis of the
shares acquired.
 
    A shareholder wishing to make an exchange may do so by sending a written
request to ACCESS or by contacting the telephone transaction line at (800)
421-5684. A shareholder automatically has telephone exchange privileges unless
otherwise designated in the application form accompanied by this Prospectus. The
exchange will take place at the relative net asset values of the shares next
determined after receipt of such request with adjustment for any additional
sales charge. Any shares exchanged begin earning dividends on the next business
day after the exchange is affected. Van Kampen American Capital, Inc. and its
subsidiaries, including ACCESS (collectively, "VKAC"), and the Company's employ
procedure considered by them to be reasonable to confirm their instructions
communicated by telephone are genuine. Such procedures include requiring certain
personal identification information prior to acting upon telephone instructions,
tape recordings, telephone communications, and providing written confirmation of
instructions communicated by telephone. If reasonable procedures are employed, a
shareholder agrees that neither VKAC nor the Company will be liable for
following telephone instructions which it reasonably believes to be genuine. If
the exchanging shareholder does not have an account in the Fund whose shares are
being acquired, a new account will be established with the same registration,
dividend and capital gains options (except dividend diversification options) and
broker, dealer or financial intermediary of record as the account from which
shares are exchanged, unless otherwise specified by the shareholder. In order to
establish a systematic withdrawal plan for the new account or dividend
diversification options for the new account, an exchanging shareholder must file
a specific written request. The Company reserves the right to reject any order
to acquire its shares through exchange. In addition, the Company may restrict or
terminate the exchange privilege at any time on 60 days' notice to its
shareholders of any termination or material amendment. If an account has
multiple owners, ACCESS may rely on the instructions of any one owner.
 
    SYSTEMATIC WITHDRAWAL PLAN.  Any investor whose shares in a single account
total $5,000 or more may establish a quarterly, semi-annual or annual withdrawal
plan. Investors whose shares in a single account total $10,000 or more at the
offering price next computed after receipt of instructions have the additional
option of establishing a monthly withdrawal plan. This plan provides for the
orderly use of the entire account, not only the income but also the principal,
if necessary. Each withdrawal constitutes a redemption of shares on which
taxable gain or loss will be recognized. The plan holder may arrange for
monthly, quarterly, semi-annual or annual checks in any amount not less than
$25.
 
    The CDSC on Class B and Class C shares is waived for withdrawals under the
Systematic Withdrawal Plan of a maximum 1% per month, 3% per quarter, 6%
semiannually or 12% annually, of the initial value of a
 
                                       48
<PAGE>
shareholder's account. Under this CDSC waiver policy, amounts withdrawn each
month will be paid by redeeming first Class B 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 no Class B shares not subject to the CDSC are available, or not
enough such shares are available, Class B shares having a CDSC will be redeemed
next, beginning with such shares held for the longest period of time (having the
lowest CDSC payable upon redemption) and continuing with shares held the next
longest period of time until shares held the shortest period of time are
redeemed. Under this policy, the least amount of CDSC will be waived by
withdrawals under the Systematic Withdrawal Plan.
 
    Under the plan, sufficient shares of the Company are redeemed to provide the
amount of the periodic withdrawal payment. Dividends and capital gains
distributions on shares held under the plan are reinvested in additional shares
at the next determined net asset value. If periodic withdrawals continuously
exceed reinvested dividends and capital gains distributions, the shareholder's
original investment will be correspondingly reduced and ultimately exhausted.
Withdrawals made concurrently with purchases of additional shares ordinarily
will be disadvantageous to the shareholder because of the duplication of sales
charges. The Company reserves the right to amend or terminate the systematic
withdrawal program on thirty days' notice to its shareholders.
 
    AUTOMATED CLEARING HOUSE ("ACH") DEPOSITS.  Holders of Class A shares can
use ACH to have redemption proceeds deposited electronically into their bank
accounts. Redemptions transferred to a bank account via the ACH plan are
available to be credited to the account on the second business day following
normal payment. In order to utilize this option, the shareholder's bank must be
a member of Automated Clearing House. In addition, the shareholder must fill out
the appropriate section of the account application. The shareholder must also
include a voided check or deposit slip from the bank account into which
redemptions are to be deposited together with the completed application. Once
ACCESS has received the application and the voided check or deposit slip, such
shareholder's designated bank account, following any redemption, will be
credited with the proceeds of such redemption. Once enrolled in the ACH plan, a
shareholder may terminate participation at any time by writing to ACCESS or by
calling 1-800-282-4404. A shareholder's bank may charge a fee for this transfer.
 
                              REDEMPTION OF SHARES
 
    Shareholders may redeem for cash some or all of their shares without charge
by the Company (other than, with respect to CDSC Shares, the applicable
contingent deferred sales charge) at any time by sending a written request in
proper form directly to the Fund c/o ACCESS, P.O. Box 419256, Kansas City,
Missouri 64141-9256, by placing the redemption request through a Participating
Dealer or by calling the Company.
 
    The Company will redeem shares of each Fund at its next determined net asset
value. A CDSC of 1.00% will be imposed on certain Class A shares of the Funds
that were purchased without payment of the initial sales charge due to the size
of the purchase and are redeemed within one year of purchase. A maximum CDSC of
4.00% which decreases in steps to 0% after five years, will be imposed on
certain Class B shares of the Funds that are redeemed within five years of
purchase. A CDSC of 1.00% will be imposed on certain Class C shares of the Funds
that are redeemed within one year of purchase. See "Purchase of Shares." Any
CDSC will be imposed on the lesser of the current market value or the total cost
of the shares being redeemed. In determining whether a CDSC is payable, and, if
so, the amount of the charge, it is assumed that shares not subject to such
charge are the first redeemed followed by other shares held for the longest
period of time.
 
                                       49
<PAGE>
    WRITTEN REDEMPTION REQUESTS.  In the case of redemption requests sent
directly to ACCESS, the redemption request should indicate the number of shares
or dollars to be redeemed, the class designation of such shares, the account
number and be signed exactly as the shares are registered. Signatures must
conform exactly to the account registration. If the proceeds of the redemption
would exceed $50,000, or if the proceeds are not to be paid to the record owner
at the record address, or if the record address has changed within the previous
30 days, signature(s) must be guaranteed by one of the following: a bank or
trust company; a broker-dealer; a credit union; a national securities exchange,
registered securities association or clearing agency; a savings and loan
association; or a federal savings bank. If certificates are held for the shares
being redeemed, such certificates must be endorsed for transfer or accompanied
by an endorsed stock power and sent with the redemption request. In the event
the redemption is requested by a corporation, partnership, trust, fiduciary,
executor or administrator, additional documents may be necessary. The redemption
price is the net asset value per share next determined after the request is
received by ACCESS in proper form. Payment for shares redeemed (less any sales
charge, if applicable) will ordinarily be made by check mailed within seven
business days after acceptance by ACCESS of the request and any other necessary
documents in proper order. Such payments may be postponed or the right of
redemption suspended as provided by the rules of the SEC. If the shares to be
redeemed have been recently purchased by check, ACCESS may delay mailing a
redemption check until it confirms that the purchase check has cleared, usually
a period of up to 15 days. Any gain or loss realized on the redemption of shares
is a taxable event.
 
    DEALER REDEMPTION REQUEST.  Shareholders may sell shares through their
securities dealer, who will submit the request to the Distributor. Orders
received from dealers must be at least $500 unless transmitted via the FUNDSERV
network. The redemption price for such shares is the net asset value next
calculated after an order is received, less any applicable CDSC, by a dealer
provided such order is transmitted to the Distributor prior to the Distributor's
close of business on such day. It is the responsibility of dealers to transmit
redemption requests received by them to the Distributor so they will be received
prior to such time. Any change in the redemption price due to failure of the
Distributor to receive a sell order prior to such time must be settled between
the shareholder and dealer. Shareholders must submit a written redemption
request in proper form (as described above under "Written Redemption Request")
to the dealer within three business days after calling the dealer with the sell
order. Payment for shares redeemed (less any sales charge, if applicable) will
ordinarily be made by check mailed within three business days to the dealer.
 
    TELEPHONE REDEMPTION REQUESTS.  The Company permits redemption of shares by
telephone and for redemption proceeds to be sent to the address of record for
the account or to the bank account of record as described below. To establish
such privilege, a shareholder must complete the appropriate section of the
application accompanying this Prospectus or call the Company at (800) 282-4404
or (800) 772-8889 for the hearing impaired to request that a copy of the
Telephone Redemption Authorization form be sent to them for completion. To
redeem shares, contact the telephone transaction line at (800) 421-5684. VKAC
and the Company employ procedures considered by them to be reasonable to confirm
that instructions communicated by telephone are genuine. Such procedures include
requiring certain personal identification information prior to acting upon
telephone instructions, tape recording telephone communications, and providing
written confirmation of instructions communicated by telephone. If reasonable
procedures are employed, a shareholder agrees that neither VKAC nor the Company
will be liable for following instructions which it reasonably believes to be
genuine. VKAC and the Company may be liable for any losses due to unauthorized
or fraudulent instructions if reasonable procedures are not followed. telephone
redemptions may not be available if the shareholder cannot
 
                                       50
<PAGE>
reach ACCESS by telephone, whether because all telephone lines are busy or for
any other reason, in such case, a shareholder would have to use the Company's
other redemption procedures previously described. Requests received by ACCESS
prior to 4:00 p.m., Eastern Time, on a regular business day will be processed at
the net asset value per share determined that day. These privileges are
available for all accounts other than retirement accounts. The telephone
redemption privilege is not available for shares represented by certificates. If
the shares to be redeemed have been recently purchased by check, ACCESS may
delay mailing a redemption check or wiring redemption proceeds until it confirms
that the purchase check has cleared, usually a period of up to 15 days. If an
account has multiple owners, ACCESS may rely on the instructions of any one
owner.
 
    For redemptions authorized by telephone, amounts of $50,000 or less may be
redeemed daily if the proceeds are to be paid by check sent to the shareholders'
address of record and amounts of at least $1,000 and up to $1 million may be
redeemed daily of the proceeds are to be paid by wire sent to the shareholder's
bank account of record. The proceeds must be payable to the shareholder(s) of
record. Proceeds from redemptions to be paid by check will ordinarily be mailed
within three business days to the shareholder's address or record. proceeds from
redemptions to be paid by wire will ordinarily be wired on the next business day
to the shareholder's bank account of record. This privilege is not available if
the address or bank account of record has been changed within 30 days prior to a
telephone redemption request. The Company reserves the right at any time to
terminate, limit or otherwise modify this telephone redemption privilege.
 
    REDEMPTION UPON DISABILITY.  The Company will waive the contingent deferred
sales charge on redemption following the disability of holders of Class B shares
and Class C shares. An individual will be considered disabled for this purpose
of he or she meets the definition thereof in Section 72(m)(7) of the Code, which
in pertinent part defines a person as disabled of such person "is unable to
engage in any substantial gainful activity by reason of any medically
determinable physical or mental impairment which can be expected to result in
death or to be of long-continued and indefinite duration." While the Company
does not specifically adopt the balance of the Code's definition which pertains
to furnishing the Secretary of Treasury with such proof as he or she may
require, the Distributor will require satisfactory proof of disability before it
determines to waive the contingent deferred sales charge on Class B shares and
Class C shares.
 
    In cases of disability, the contingent deferred sales charges on Class B
shares and Class C shares will be waived where the disabled person is either an
individual shareholder or owns the shares as a joint tenant with right of
survivorship or is the beneficial owner of a custodial or fiduciary account, and
where the redemption is made within one year of the initial determination of
disability. This waiver of the contingent deferred sales charge on Class B
shares and Class C shares applies to a total or partial redemption, but only to
redemptions of shares held at the time of the initial determination of
disability.
 
    GENERAL REDEMPTION INFORMATION.  The Company may redeem any shareholder
account with a net asset value on the date of the notice of redemption less than
the minimum investment as specified by the Directors. At least 60 days' advance
written notice of any such involuntary redemption is required and the
shareholder is given an opportunity to purchase the required value of additional
shares at the next determined net asset value without sales charge. Any
applicable contingent deferred sales charge will be deducted from the proceeds
of this redemption. Any involuntary redemption may only occur if the shareholder
account is less than the minimum investment due to shareholder redemptions.
 
                                       51
<PAGE>
    As described herein under "Purchase of Shares," redemptions of Class B
shares or Class C shares are subject to a contingent deferred sales charge. In
addition a CDSC of 1.00% may be imposed on certain redemptions of Class A shares
made within one year of purchase for investments of $1 million or more. The CDSC
incurred upon redemption is paid to the Distributor in reimbursement for
distribution-related expenses,. A custodian of a retirement plan account may
charge fees based on the custodian's fee schedule.
 
    IRA redemption requests should be sent to the IRA custodian to be fowarded
to ACCESS. Where Van Kampen American Capital Trust Company serves as IRA
custodian, special IRA, 403(b)(7), or Keogh redemption forms must be obtained
from and be forwarded to Van Kampen American Capital Trust Company, P.O. Box
944, Houston, Texas 77001-0944. Contact the custodian for information.
 
    Reinstatement privileges (as otherwise described under "Reinstatement
Privilege of Each Class" above) also extend to participants in eligible
retirement plans held or administered by Van Kampen American Capital Trust
Company who repay the principal and interest on borrowings from such plans.
 
    FOR SHARES THAT ARE HELD IN BROKER STREET NAME, YOU CANNOT REQUEST
REDEMPTION BY TELEPHONE OR BY MAIL; SUCH SHARES MAY BE REDEEMED ONLY BY
CONTACTING YOUR PARTICIPATING DEALER.
 
TRANSFER OF REGISTRATION
 
    You may transfer the registration of any of your Company shares to another
person by writing to the Fund c/o ACCESS, P.O. Box 418256, Kansas City, Missouri
64141-9256. As in the case of redemptions, the written request must be received
in "good order" before any transfer can be made. Shares held in broker street
name may be transferred only by contacting your Participating Dealer.
 
                              VALUATION OF SHARES
 
    Net asset value is calculated separately for each class of each Fund. The
net asset value per share of each class of shares of a Fund is determined by
dividing the total fair market value of the investments and other assets
attributable to such classes of shares, less all liabilities attributable to
such class of shares, by the total number of outstanding shares of such classes
of shares. Net asset value per share of a Fund is determined as of the regular
close of the NYSE (currently, 4:00 p.m. Eastern Time) on each day that the NYSE
is open for business. Securities listed on a securities exchange for which
market quotations are available are valued at their closing price. If no closing
price is available, such securities will be valued at the last quoted sale price
on the day the valuation is made. Price information on listed securities is
taken from the exchange where the security is primarily traded. Unlisted
securities and listed securities not traded on the valuation date for which
market quotations are readily available are valued at the average of the mean
between the current bid and asked prices obtained from reputable brokers.
 
    Bonds and other fixed income securities are valued according to the broadest
and most representative market, which will ordinarily be the over-the-counter
market. Net asset value includes interest on fixed income securities, which is
accrued daily. In addition, bonds and other fixed income securities may be
valued on the basis of prices provided by a pricing service when such prices are
believed to reflect the fair market value of such securities. The prices
provided by a pricing service are determined without regard to bid or last sale
prices but take into account institutional size trading in similar groups of
securities and any developments related to the specific securities. Securities
not priced in this manner are valued at the most recent quoted bid price, or,
when
 
                                       52
<PAGE>
stock exchange valuations are used, at the latest quoted sale price on the day
of valuation. If there is no such reported sale, the latest quoted bid price
will be used. Debt securities purchased with remaining maturities of 60 days or
less are valued at amortized cost, if it approximates market value. In the event
that amortized cost does not approximate market value, market prices as
determined above will be used. The "amortized cost" method of valuation does not
take into account unrealized gains or losses. This method involves valuing an
instrument at its cost and thereafter assuming a constant amortization to
maturity of any discount or premium, regardless of the impact of fluctuating
interest rates on the market value of the instrument. While this method provides
certainty in valuation, it may result in periods during which value, as
determined by amortized cost, is higher or lower than the price each Fund would
receive if it sold the instrument.
 
    The value of other assets and securities for which no quotations are readily
available (including illiquid and unlisted foreign securities) and those
securities for which it is inappropriate to determine prices in accordance with
the above procedures are determined in good faith at fair value using methods
determined by the Board of Directors. For purposes of calculating net asset
value per share, all assets and liabilities initially expressed in foreign
currencies will be converted into U.S. Dollars at the mean of the bid price and
asked price of such currencies against the U.S. Dollar as quoted by a major
bank.
 
    Although the legal rights of Class A, Class B and Class C shares will be
identical, the different expenses borne by each class will result in different
net asset values and dividends. Dividends will differ by approximately the
amount of the distribution expenses that have accrued for each class. The
respective net asset values of Class B shares and Class C shares will generally
be lower than the net asset value of Class A shares as a result of the larger
distribution fee charged to Class B and Class C shares.
 
                             PORTFOLIO TRANSACTIONS
 
    The Adviser selects the brokers or dealers that will execute the purchases
and sales of investment securities for each of the Funds. The Adviser may,
consistent with NASD rules, place portfolio orders with qualified broker-dealers
who recommend the Fund to their clients or who act as agents in the purchase of
shares of the Funds for their clients.
 
    Subject to the overriding objective of obtaining the best execution of
orders, the Adviser may allocate a portion of the Company's portfolio brokerage
transactions to Morgan Stanley & Co. Incorporated ("Morgan Stanley"), an
affiliate of the Advisers or broker affiliates of Morgan Stanley under
procedures adopted by the Board of Directors. For such portfolio transactions,
the commissions, fees or other remuneration received by Morgan Stanley or such
affiliates must be reasonable and fair compared to the commissions, fees or
other remuneration paid to other brokers for comparable transactions involving
similar securities being purchased or sold during a comparable period of time.
 
    Although the objective of each Fund is not to invest for short-term trading,
each Fund will seek to take advantage of trading opportunities as they arise to
the extent they are consistent with the Funds' objectives. Accordingly,
investment securities may be sold from time to time without regard to the length
of time they have been held. The Emerging Markets Debt and High Yield Funds each
anticipate that its annual portfolio turnover rate will not exceed 100% under
normal circumstances. Market conditions could result in portfolio activity at a
greater or lesser rate than anticipated. For the annual turnover rates for the
other Funds, see "Financial
 
                                       53
<PAGE>
Highlights" above. High portfolio turnover involves correspondingly greater
transaction costs which will be borne directly by the Fund. In addition, high
portfolio turnover may result in more capital gains which would be taxable to
the shareholders of the Fund.
 
                            PERFORMANCE INFORMATION
 
    The Company may from time to time advertise total return of the Funds. THESE
FIGURES WILL BE BASED ON HISTORICAL EARNINGS AND ARE NOT INTENDED TO INDICATE
FUTURE PERFORMANCE. The "total return" shows what an investment in a Fund would
have earned over a specified period of time (such as one, three, five or ten
years) assuming that all distributions and dividends by the Fund were reinvested
on the reinvestment dates during the period. Total return does not take into
account any federal or state income taxes consequences to shareholders subject
to tax. The Company may also include comparative performance information in
advertising or marketing the Fund's shares. Such performance information may
include data from Lipper Analytical Services, Inc. and Morgan Stanley Capital
International.
 
    The respective performance figures for Class B shares and Class C shares of
the Funds will generally be lower than those for Class A shares of the Funds
because of the distribution fee and larger shareholder services fee charged to
Class B shares and Class C shares.
 
PERFORMANCE OF INVESTMENT ADVISER -- EMERGING MARKETS DEBT FUND
 
    The Adviser manages a portfolio of Morgan Stanley Institutional Fund, Inc.
("MSIF") which served as the model for the Emerging Markets Debt Fund. The
portfolio of MSIF (the "MSIF Portfolio") has substantially the same investment
objective and policies as the Emerging Markets Debt Fund. In addition, the
Adviser intends the Emerging Markets Debt Fund and the corresponding MSIF
Portfolio to be managed by the same personnel and to continue to have closely
similar investment strategies, techniques and characteristics. Past investment
performance of the MSIF Portfolio, as shown in the table below, may be relevant
to your consideration of investment in the Emerging Markets Debt Fund. The
investment performance of the MSIF Portfolio is not necessarily indicative of
future performance of the Emerging Markets Debt Fund. Also, the operating
expenses of the Emerging Markets Debt Fund will be different from, and may be
higher than, the operating expenses of the MSIF Portfolio. The investment
performance of the MSIF Portfolio is provided merely to indicate the experience
of the Adviser in managing similar investment portfolios.
 
    The data set forth below under the heading "Return With Sales Charge" is
adjusted, (i) with respect to the Class A shares, to take into account a 4.75%
sales charge applicable to purchases of Class A shares of the Emerging Markets
Debt Fund; (ii) with respect to Class B shares, to take into account the
applicable CDSC that is imposed if Class B shares of the Emerging Markets Debt
Fund are redeemed within the year of their purchase indicated; and (iii) with
respect to the Class C shares, to take into account a 1.00% CDSC that is imposed
if Class C shares of the Emerging Markets Debt Fund are redeemed within one year
of their purchase. The data set forth below under the heading "Return Without
Sales Charge" is not adjusted to take into account such sales charges.
 
                                       54
<PAGE>
   TOTAL RETURN FOR THE MSIF EMERGING MARKETS DEBT PORTFOLIO'S CLASS A SHARES
            (A SEPARATE MUTUAL FUND FROM EMERGING MARKETS DEBT FUND)
                    FOR THE PERIOD ENDED SEPTEMBER 30, 1996
   (ADJUSTED TO REFLECT STATED SALES LOADS OF THE EMERGING MARKETS DEBT FUND)
 
<TABLE>
<CAPTION>
RETURN WITH                                                                       SINCE
SALES CHARGE                                                         1 YEAR    INCEPTION (1)
- ------------------------------------------------------------------  ---------  ------------
<S>                                                                 <C>        <C>
Class A (of 4.75%)................................................     43.21%       12.32%
Class B (of 4.00%)................................................     43.96%       13.07%
Class C (of 1.00%)................................................     46.96%       17.07%
RETURN WITHOUT
SALES CHARGE
- ------------------------------------------------------------------
Class A...........................................................     47.96%       17.07%
Class B...........................................................     47.96%       17.07%
Class C...........................................................     47.96%       17.07%
</TABLE>
 
- --------------
(1) Commenced operations on February 1, 1994.
 
    The past performance of the MSIF Emerging Markets Debt Portfolio is no
guarantee of the future performance of the Emerging Markets Debt Fund.
 
                          DIVIDENDS AND DISTRIBUTIONS
 
    Shareholders will automatically be credited with all dividends and
distributions in additional shares at net asset value, without payment of any
initial sales charge of the Funds, except that, upon written notice to the
Company or by checking off the appropriate box in the Distribution Option
Section on the New Account Application, a shareholder may elect to receive
dividends and/or distributions in cash. Shares received through reinvestment of
dividends and/or distributions will not be subject to any CDSC upon their
redemption.
 
    The Emerging Markets Debt Fund expects to distribute substantially all of
its net investment income in the form of annual dividends. Each of the Global
Fixed Income, High Yield and Worldwide High Income Funds expects to distribute
net investment income monthly. Net realized gains, if any, will be distributed
annually. Confirmations of the purchase of shares of the Fund through the
automatic reinvestment of income dividends and capital gains distributions will
be provided, pursuant to Rule 10b-10(b) under the Securities Exchange Act of
1934, as amended, on the next quarterly client statement following such purchase
of shares. Consequently, confirmations of such purchases will not be provided at
the time of completion of such purchases, as might otherwise be required by Rule
10b-10.
 
    Any undistributed net investment income and undistributed realized gains
increase a Fund's net assets for the purpose of calculating net asset value per
share. Therefore, on the "ex-dividend" or "ex-distribution" date, the net asset
value per share excludes the dividend or distribution (i.e., is reduced by the
per share amount of the dividend or distribution). Dividends and distributions
paid shortly after the purchase of shares by an investor, although in effect a
return of capital, are taxable to shareholders subject to tax.
 
    Because of the higher distribution fee, higher shareholder servicing fee,
and any other expenses that may be attributable to the Class B shares and Class
C shares of a Fund, the net income attributable to and the
 
                                       55
<PAGE>
dividends payable on Class B shares and Class C shares of a Fund will be lower
than the net income attributable to and the dividends payable on Class A shares
of the Funds. As a result, the net asset value per share of the classes of a
Fund will differ at times. Expenses of the Company allocated to a particular
class of shares of a Fund will be borne on a pro rata basis by each outstanding
share of that class.
 
                                     TAXES
 
TAX STATUS OF THE FUNDS
 
    The following summary of certain federal income tax consequences is based on
current tax laws and regulations, which may be changed by legislative, judicial
or administrative action. See also the tax sections in the Statement of
Additional Information.
 
    No attempt has been made to present a detailed explanation of the federal,
state or local income tax treatment of the Funds or their shareholders.
Accordingly, shareholders are urged to consult their tax advisors regarding
specific questions as to federal, state and local income taxes.
 
    Each of the Funds is generally treated as a separate entity for federal
income tax purposes, and thus the provisions of the Internal Revenue Code of
1986, as amended (the "Code") generally will be applied to each Fund separately,
rather than to the Company as a whole. Net long-term and short-term capital
gains, net income and operating expenses therefore will be determined separately
for each Fund.
 
    The Funds intend to qualify for the special tax treatment afforded
"regulated investment companies" ("RICs") under Subchapter M of the Code so that
it will be relieved of federal income tax on that part of its net investment
income and net capital gain (the excess of net long-term capital gain over net
short-term capital loss less any available loss carryforward) which is
distributed to its shareholders.
 
TAX STATUS OF DISTRIBUTIONS
 
    Each Fund distributes substantially all of its net investment income
(including, for this purpose, net short-term capital gain), to its shareholders.
Dividends paid by a Fund from its net investment income will be taxable to the
shareholders of the Fund as ordinary income, whether received in cash or in
additional shares, if the shareholder is subject to tax. Dividends paid by a
Fund attributable to dividends received from shares of domestic corporations
generally will not qualify for the dividends-received deduction to corporations.
 
    Distributions of net capital gains are taxable to shareholders subject to
tax as long-term capital gains, regardless of how long the shareholder has held
a Fund's shares. Capital gains distributions are not eligible for the corporate
dividends-received deduction. Each Fund will make annual reports to shareholders
of the federal income tax status of all distributions.
 
    Each Fund intends to make sufficient distributions or deemed distributions
of its ordinary income and net capital gains prior to the end of each calendar
year to avoid liability for federal excise tax.
 
    Dividends and other Distributions declared in October, November and December
by a Fund payable as of a record date in such month and paid at any time during
January of the following year are treated as having been paid by the Fund and
received by the shareholders on December 31 of the year declared.
 
    The sale, exchange or redemption of shares may result in taxable gain or
loss to the selling, exchanging or redeeming shareholder, depending upon whether
the fair market value of the redemption proceeds exceeds or is
 
                                       56
<PAGE>
less than the Shareholder's adjusted basis in the redeemed, exchanged or sold
shares. If capital gain distributions have been made with respect to shares that
are sold at a loss after being held for six months or less, then the loss is
treated as a long-term capital loss to the extent of the capital gain
distributions. Shareholders may also be subject to state and local taxes on
distributions from the Fund.
 
    THE TAX DISCUSSION SET FORTH ABOVE IS INCLUDED HEREIN FOR GENERAL
INFORMATION ONLY. PROSPECTIVE INVESTORS AND SHAREHOLDERS SHOULD CONSULT THEIR
OWN TAX ADVISERS WITH RESPECT TO THE TAX CONSEQUENCES TO THEM OF AN INVESTMENT
IN THE FUND.
 
                              GENERAL INFORMATION
 
DESCRIPTION OF COMMON STOCK
 
    The Company was organized as a Maryland corporation on August 14, 1992. The
Amended Articles of Incorporation currently permit the Company to issue 27.375
billion shares of common stock, par value $.001 per share. Pursuant to the
Company's By-Laws, the Board of Directors may increase the number of shares the
Company is authorized to issue without the approval of the shareholders of the
Company. The Board of Directors has the power to designate one or more classes
of shares of common stock and to classify and reclassify any unissued shares
with respect to such classes.
 
    The shares of each Fund, when issued, will be fully paid, nonassessable,
fully transferable and redeemable at the option of the holder. The shares have
no preference as to conversion, exchange, dividends, retirement or other
features and have no preemptive rights. The shares of the Funds have
non-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. Under Maryland law, the Company is not required to hold
an annual meeting of its shareholders unless required to do so under the 1940
Act. Any person or organization owning 25% or more of the outstanding shares of
a Fund may be presumed to "control" (as that term is defined in the 1940 Act)
such Fund. As of December 11, 1996, Morgan Stanley Group Inc., 1221 Avenue of
the Americas, New York, NY 10020, was presumed to "control" the High Yield Fund
based solely on its ownership of 25% or more of the outstanding voting shares of
such Fund.
 
REPORTS TO SHAREHOLDERS
 
    The Company will send to its shareholders annual and semi-annual reports;
the financial statements appearing in annual reports are audited by independent
accountants.
 
    In addition, the Company or the Transfer Agent, will send to each
shareholder having an account directly with the Company a quarterly statement
showing transactions in the account, the total number of shares owned, and any
dividends or distributions paid. In addition, when a transaction occurs in a
shareholder's account, the Company or the Transfer Agent will send the
shareholder a confirmation statement showing the same information.
 
CUSTODIAN
 
    Domestic securities and cash are held by Chase, which is not an affiliate of
the Adviser or the Distributor. Morgan Stanley Trust Company, Brooklyn, New York
("Morgan Stanley Trust"), acts as the Company's custodian for foreign assets
held outside the United States and employs subcustodians who were approved by
the
 
                                       57
<PAGE>
Directors of the Company in accordance with regulations of the SEC for the
purpose of providing custodial services for such assets. Morgan Stanley Trust
may also hold certain domestic assets for the Company. Morgan Stanley Trust is
an affiliate of the Adviser and the Distributor. For more information on the
custodians, see "General Information -- Custody Arrangements" in the Statement
of Additional Information.
 
DIVIDEND DISBURSING AND TRANSFER AGENT
 
    ACCESS, P.O. Box 418256, Kansas City, Missouri 64141-9256, acts as dividend
disbursing and transfer agent for the Company.
 
INDEPENDENT ACCOUNTANTS
 
    Price Waterhouse LLP, 1177 Avenue of the Americas, New York, NY 10036,
serves as independent accountants for the Company and audits its annual
financial statements.
 
                                       58
<PAGE>
                 (This page has been left blank intentionally.)
<PAGE>
                 (This page has been left blank intentionally.)
<PAGE>
                 (This page has been left blank intentionally.)
<PAGE>
                                   APPENDIX A
                     DESCRIPTION OF CORPORATE BOND RATINGS
 
MOODY'S INVESTORS SERVICE, INC. -- CORPORATE BOND RATINGS:
 
    Aaa -- Bonds which are rated Aaa are judged to be the best quality. They
carry the smallest degree of investment risk and are generally referred to as
"gilt-edge." Interest payments are protected by a large or by an exceptionally
stable margin, and principal is secure. While the various protective elements
are likely to change, such changes as can be visualized are most unlikely to
impair the fundamentally strong position of such issues.
 
    Aa -- Bonds which are rated Aa are judged to be of high quality by all
standards. Together with the Aaa group they comprise what are generally known as
high grade bonds. They are rated lower than the best bonds because margins of
protection may not be as large as in Aaa securities or fluctuation of protective
elements may be of greater amplitude or there may be other elements present
which make the long-term risks appear somewhat larger than in Aaa securities.
 
    Moody's applies numerical modifiers 1, 2 and 3 in the Aa and A rating
categories. The modifier 1 indicates that the security ranks at a higher end of
the rating category, modifier 2 indicates a mid-range rating and the modifier 3
indicates that the issue ranks at the lower end of the rating category.
 
    A -- Bonds which are rated A possess many favorable investment attributes
and are to be considered as upper medium grade obligations. Factors giving
security to principal and interest are considered adequate but elements may be
present which suggest a susceptibility to impairment sometime in the future.
 
    Baa -- Bonds which are rated Baa are considered as medium grade obligations,
i.e., they are neither highly protected nor poorly secured. Interest payments
and principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time. Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.
 
    Ba -- Bonds which are rated Ba are judged to have speculative elements;
their future cannot be considered as well assured. Often the protection of
interest and principal payments may be very moderate, and thereby not well
safeguarded during both good and bad times over the future. Uncertainty of
position characterizes bonds in this class.
 
    B -- Bonds which are rated B generally lack characteristics of the desirable
investment. Assurance of interest and principal payments or of maintenance of
other terms of the contract over any long period of time may be small.
 
    Caa -- Bonds which are rated Caa are of poor standing. Such issues may be in
default or there may be present elements of danger with respect to principal or
interest.
 
    Ca -- Bonds which are rated Ca represent obligations which are speculative
in a high degree. Such issues are often in default or have other marked
shortcomings.
 
    C -- Bonds which are rated C are the lowest rated class of bonds, and issues
so rated can be regarded as having extremely poor prospects of ever attaining
any real investment standing.
 
                                      A-1
<PAGE>
STANDARD & POOR'S RATINGS GROUP CORPORATE BOND RATINGS:
 
    AAA -- Bonds rated AAA have the highest rating assigned by Standard & Poor's
to a debt obligation and indicate an extremely strong capacity to pay principal
and interest.
 
    AA -- Bonds rated AA have a very strong capacity to pay interest and repay
principal and differ from the highest rated issues only to a small degree.
 
    A -- Bonds rated A have a strong capacity to pay interest and repay
principal although they are somewhat more susceptible to the adverse effects of
changes in circumstances and economic conditions than bonds in higher rated
categories.
 
    BBB -- Debt rated BBB is regarded as having an adequate capacity to pay
interest and repay principal. Whereas it normally exhibits adequate protection
parameters, adverse economic conditions or changing circumstances are more
likely to lead to a weakened capacity to pay interest and repay principal for
debt in this category than for debt in higher rated categories.
 
    BB, B, CCC, CC -- Debt rated BB, B, CCC and CC is regarded, on balance, as
predominantly speculative with respect to capacity to pay interest and repay
principal in accordance with the terms of the obligation. BB indicates the
lowest degree of speculation and CC the highest degree of speculation. While
such debt will likely have some quality and protective characteristics, these
are outweighed by large uncertainties or major risk exposures to adverse
conditions.
 
    C -- The rating C is reserved for income bonds on which no interest is being
paid.
 
    D -- Debt rated D is in default, and payment of interest and/or repayment of
principal is in arrears.
 
                                      A-2
<PAGE>
- -------------------------------------------
- -------------------------------------------
- -------------------------------------------
- -------------------------------------------
 
  NO DEALER, SALES REPRESENTATIVE OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO
GIVE ANY INFORMATION OR TO MAKE ANY REPRESENTATIONS, OTHER THAN THOSE CONTAINED
IN THIS PROSPECTUS, IN CONNECTION WITH THE OFFER MADE BY THIS PROSPECTUS AND, IF
GIVEN OR MADE, SUCH OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON
AS HAVING BEEN AUTHORIZED BY THE COMPANY OR THE DISTRIBUTOR. THIS PROSPECTUS
DOES NOT CONSTITUTE AN OFFER BY THE COMPANY OR THE DISTRIBUTOR TO SELL OR A
SOLICITATION OF AN OFFER TO BUY ANY OF THE SECURITIES OFFERED HEREBY IN ANY
JURISDICTION TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR
SOLICITATION IN SUCH JURISDICTION.
 
                           --------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>                                                                   <C>
                                                                      PAGE
                                                                      -----
Fund Expenses.........................................................    2
Prospectus Summary....................................................    9
Investment Objectives and Policies....................................   13
Additional Investment Information.....................................   21
Investment Limitations................................................   32
Management of the Company.............................................   33
Purchase of Shares....................................................   37
Shareholder Services..................................................   46
Redemption of Shares..................................................   49
Valuation of Shares...................................................   52
Portfolio Transactions................................................   53
Performance Information...............................................   54
Dividends and Distributions...........................................   55
Taxes.................................................................   56
General Information...................................................   57
Appendix A............................................................  A-1
</TABLE>
 
                                 MORGAN STANLEY
                           EMERGING MARKETS DEBT FUND
                            GLOBAL FIXED INCOME FUND
                                HIGH YIELD FUND
                           WORLDWIDE HIGH INCOME FUND
 
                               PORTFOLIOS OF THE
 
                                 MORGAN STANLEY
                                   FUND, INC.
 
                                ---------------
                                   PROSPECTUS
                                ---------------
 
                               INVESTMENT ADVISER
 
                                 MORGAN STANLEY
                             ASSET MANAGEMENT INC.
 
                                  DISTRIBUTOR
 
                              VAN KAMPEN AMERICAN
 
                           CAPITAL DISTRIBUTORS, INC.
 
- ---------------------------------
- ---------------------------------
- ---------------------------------
- ---------------------------------
<PAGE>
- --------------------------------------------------------------------------------
                              P R O S P E C T U S
 -----------------------------------------------------------------------------
 
                     MORGAN STANLEY AGGRESSIVE EQUITY FUND
                       MORGAN STANLEY AMERICAN VALUE FUND
                       MORGAN STANLEY EQUITY GROWTH FUND
                       MORGAN STANLEY MID CAP GROWTH FUND
                      MORGAN STANLEY U.S. REAL ESTATE FUND
                           MORGAN STANLEY VALUE FUND
                               PORTFOLIOS OF THE
                           MORGAN STANLEY FUND, INC.
 
                  P.O. BOX 418256, KANSAS CITY, MISSOURI 64141
                      FOR INFORMATION CALL 1-800-282-4404
                               ------------------
 
    Morgan Stanley Fund, Inc. (the "Company") is an open-end management
investment company, or mutual fund, which consists of twenty-two diversified and
non-diversified investment portfolios (each a "Fund," and together, the
"Funds"). This prospectus (the "Prospectus") describes the Class A, Class B and
Class C shares of the six Funds listed above. The Company is designed to make
available to retail investors the expertise of Van Kampen American Capital
Investment Advisory Corp., the adviser (the "Adviser") and administrator (the
"Administrator") and its affiliates, Morgan Stanley Asset Management Inc., a
sub-adviser (a "Sub-Adviser") and Miller Andersen & Sherrerd, LLP, a sub-adviser
(a "Sub-Adviser") to the Funds. Shares are available through Van Kampen American
Capital Distributors, Inc. ("VKAC Distributors," or the "Distributor"), and
through investment dealers, banks and financial services firms that provide
distribution, administrative or shareholder services ("Participating Dealers").
 
    This Prospectus is designed to set forth concisely the information about the
Funds that a prospective investor should know before investing and it should be
retained for future reference. The Company offers other Funds which are
described in other prospectuses and under "Prospectus Summary" below. The
Company currently offers the following Funds: (i) GLOBAL AND INTERNATIONAL
EQUITY -- Morgan Stanley Asian Growth, Morgan Stanley Emerging Markets, Morgan
Stanley Global Equity, Morgan Stanley Global Equity Allocation, Morgan Stanley
International Magnum and Morgan Stanley Latin American Funds; (ii) U.S. EQUITY
- -- Morgan Stanley Aggressive Equity, Morgan Stanley American Value, Morgan
Stanley Equity Growth, Morgan Stanley Mid Cap Growth, Morgan Stanley U.S. Real
Estate and Morgan Stanley Value Funds; (iii) GLOBAL FIXED INCOME -- Morgan
Stanley Emerging Markets Debt, Morgan Stanley Global Fixed Income, Morgan
Stanley High Yield and Morgan Stanley Worldwide High Income Funds; and (iv)
MONEY MARKET -- Morgan Stanley Government Obligations Money Market and Morgan
Stanley Money Market Funds. Additional information about the Company is
contained in a "Statement of Additional Information," dated January 2, 1997,
which is incorporated herein by reference. The Statement of Additional
Information and the prospectuses pertaining to the other Funds are available
upon request and without charge by writing or calling the Company at the address
and telephone number set forth above.
 
    THE COMPANY'S SHARES ARE NOT OBLIGATIONS, DEPOSITS OR ACCOUNTS OF, OR
ENDORSED OR GUARANTEED BY, ANY BANK OR DEPOSITORY INSTITUTION, OR ANY OF ITS
AFFILIATES OR CORRESPONDENTS. THE COMPANY'S SHARES ARE NOT FEDERALLY INSURED BY
THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY
OTHER AGENCY. SHARES OF THE COMPANY INVOLVE INVESTMENT RISKS, INCLUDING THE
POSSIBLE LOSS OF PRINCIPAL.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
     EXCHANGE COMMISSION, NOR HAS THE SECURITIES AND EXCHANGE COMMISSION
        PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
              THE DATE OF THIS PROSPECTUS IS DATED JANUARY 2, 1997
                     AS SUPPLEMENTED THROUGH JULY 7, 1997.
<PAGE>
                                 FUND EXPENSES
 
    The following table illustrates all expenses and fees that a shareholder of
a Fund may incur:
 
<TABLE>
<CAPTION>
                                  AGGRESSIVE    AMERICAN      EQUITY       MID CAP     U.S. REAL
SHAREHOLDER TRANSACTION EXPENSES  EQUITY FUND  VALUE FUND   GROWTH FUND  GROWTH FUND  ESTATE FUND  VALUE FUND
- --------------------------------  -----------  -----------  -----------  -----------  -----------  -----------
<S>                               <C>          <C>          <C>          <C>          <C>          <C>
Maximum Sales Load Imposed on
 Purchases (as a percentage of
 offering price)
    Class A.....................   5.75%(1)     5.75%(1)     5.75%(1)     5.75%(1)     5.75%(1)     5.75%(1)
    Class B.....................     None         None         None         None         None         None
    Class C.....................     None         None         None         None         None         None
Maximum Deferred Sales Load (as
 a percentage of the lesser of
 initial purchase price or
 current market value)
    Class A
      For Purchases up to
        $999,999................     None         None         None         None         None         None
      For Purchases of
        $1,000,000 or more......   1.00%(2)     1.00%(2)     1.00%(2)     1.00%(2)     1.00%(2)     1.00%(2)
    Class B.....................   5.00%(3)     5.00%(3)     5.00%(3)     5.00%(3)     5.00%(3)     5.00%(3)
    Class C.....................   1.00%(4)     1.00%(4)     1.00%(4)     1.00%(4)     1.00%(4)     1.00%(4)
Maximum Sales Load Imposed on
 Reinvested Dividends
    Class A.....................     None         None         None         None         None         None
    Class B.....................     None         None         None         None         None         None
    Class C.....................     None         None         None         None         None         None
Redemption Fees
    Class A.....................     None         None         None         None         None         None
    Class B.....................     None         None         None         None         None         None
    Class C.....................     None         None         None         None         None         None
Exchange Fees
    Class A.....................     None         None         None         None         None         None
    Class B.....................     None         None         None         None         None         None
    Class C.....................     None         None         None         None         None         None
</TABLE>
 
- ------------------
 
(1) Percentage shown is the maximum sales load. Certain large purchases may be
    subject to a reduced sales load.
 
(2) Purchases of Class A shares of the Funds listed above which, when combined
    with the net asset value of the purchaser's existing investments in Class A
    shares of the Funds, aggregate to $1 million or more are not subject to a
    sales load (an "initial sales charge"). A contingent deferred sales charge
    ("CDSC") of 1.00% will be imposed, however, on shares from any such purchase
    that are redeemed within one year following such purchase. Any such CDSC
    will be paid to the Distributor. Certain other purchases are not subject to
    an initial sales charge. See "Purchase of Shares."
 
(3) Percentage shown is the maximum CDSC. Purchases of Class B shares of the
    Funds listed above are subject to a maximum CDSC of 5.00% which decreases in
    steps to 0% after five years. See "Purchase of Class B Shares." Any such
    CDSC will be paid to the Distributor.
 
(4) Purchases of Class C shares of the Funds listed above are subject to a CDSC
    of 1.00% for redemptions made within one year of purchase. Any such CDSC
    will be paid to the Distributor.
 
                                       2
<PAGE>
 
<TABLE>
<CAPTION>
ANNUAL FUND OPERATING EXPENSES              AGGRESSIVE    AMERICAN     EQUITY       MID CAP     U.S. REAL
(AS A PERCENTAGE OF AVERAGE NET ASSETS)     EQUITY FUND  VALUE FUND  GROWTH FUND  GROWTH FUND  ESTATE FUND  VALUE FUND
                                            -----------  ----------  -----------  -----------  -----------  ----------
<S>                                         <C>          <C>         <C>          <C>          <C>          <C>
Investment Advisory Fee (after expense
 reimbursement and/or fee waiver) (5)
    Class A...............................     0.50%       0.54%        0.68%        0.67%        0.70%       0.74%
    Class B...............................     0.50%       0.54%        0.68%        0.67%        0.70%       0.74%
    Class C...............................     0.50%       0.54%        0.68%        0.67%        0.70%       0.74%
12b-1/Service Fees
    Class A (6)...........................     0.25%       0.25%        0.25%        0.25%        0.25%       0.25%
    Class B (6)...........................     1.00%       1.00%        1.00%        1.00%        1.00%       1.00%
    Class C (6)...........................     1.00%       1.00%        1.00%        1.00%        1.00%       1.00%
Other Expenses (after expense
 reimbursement and/or fee waiver) (5)
    Class A...............................     0.75%       0.71%        0.47%        0.48%        0.60%       0.46%
    Class B...............................     0.75%       0.71%        0.47%        0.48%        0.60%       0.46%
    Class C...............................     0.75%       0.71%        0.47%        0.48%        0.60%       0.46%
Total Operating Expenses (after expense
 reimbursement and/or fee waiver) (5)
    Class A...............................     1.50%       1.50%        1.40%        1.40%        1.55%       1.45%
    Class B...............................     2.25%       2.25%        2.15%        2.15%        2.30%       2.20%
    Class C...............................     2.25%       2.25%        2.15%        2.15%        2.30%       2.20%
</TABLE>
 
- ------------------
(5) The Adviser has agreed to waive its advisory fees and/or to reimburse
    expenses of the Funds listed above, if necessary, if such fees would cause
    the total annual operating expenses of the Funds, as a percentage of average
    daily net assets, to exceed the percentages set forth in the table above.
    The following sets forth, for each such Fund, investment advisory fees and
    expected total operating expenses absent fee waivers and/or expense
    reimbursements.
 
<TABLE>
<CAPTION>
                                            AGGRESSIVE    AMERICAN     EQUITY       MID CAP     U.S. REAL
                                            EQUITY FUND  VALUE FUND  GROWTH FUND  GROWTH FUND  ESTATE FUND  VALUE FUND
                                            -----------  ----------  -----------  -----------  -----------  ----------
<S>                                         <C>          <C>         <C>          <C>          <C>          <C>
Investment Advisory Fees
    (All Classes).........................     0.90%       0.85%        0.70%        0.75%        1.00%       0.80%
Total Operating Expenses
    Class A...............................     1.90%       1.81%        1.42%        1.48%        1.85%       1.51%
    Class B...............................     2.65%       2.61%        2.17%        2.23%        2.60%       2.26%
    Class C...............................     2.65%       2.58%        2.17%        2.23%        2.60%       2.26%
</TABLE>
 
    The Adviser reserves the right to terminate any of its fee waivers and/or
    reimbursements at any time in its sole discretion. For further information
    on Fund expenses, see "Management of the Company."
(6) Of the 12b-1/service fees for the Class A shares, 0.25% represents a
    shareholder services fee, and for the Class B shares and the Class C shares,
    0.75% represents a distribution fee and 0.25% represents a shareholder
    services fee.
 
    The purpose of the above table is to assist the investor in understanding
the various expenses that an investor in any of the Funds listed above will bear
directly or indirectly. The expenses and fees for the American Value Fund are
based on actual figures for the period ended June 30, 1996. The expenses and
fees for the Aggressive Equity, Equity Growth, Mid Cap Growth, U.S. Real Estate
and Value Funds are based on estimates. For purposes of calculating the
estimated expenses and fees set forth above, the table assumes that each Fund's
average daily net assets will be $50,000,000. Due to the continuous nature of
Rule 12b-1 fees, long-term shareholders may pay more than the equivalent of the
maximum front-end sales charges otherwise permitted by the Conduct Rules of the
National Association of Securities Dealers, Inc. ("NASD").
 
                                       3
<PAGE>
    The following examples illustrate the expenses that you would pay on a
$1,000 investment, assuming a 5% annual rate of return and redemption at the end
of each time period as indicated, in (i) Class A shares of each listed Fund,
including the maximum 5.75% sales charge, (ii) Class B shares of each such Fund,
which have a CDSC, but no initial sales charge and (iii) Class C shares of each
such Fund, which have a CDSC, but no initial sales charge.
 
<TABLE>
<CAPTION>
                                            AGGRESSIVE     AMERICAN      EQUITY        MID CAP      U.S. REAL
                                            EQUITY FUND   VALUE FUND   GROWTH FUND   GROWTH FUND   ESTATE FUND   VALUE FUND
                                            -----------   ----------   -----------   -----------   -----------   ----------
<S>                                         <C>           <C>          <C>           <C>           <C>           <C>
Class A shares
 (If it is assumed there are no
 redemptions, the expenses are the same.)
    1 Year................................   $   72(1)    $   72(1)     $   71(1)     $   71(1)     $   72(1)    $   71(1)
    3 Years...............................      102          102            99            99           104          101
    5 Years...............................     *             135          *             *             *            *
    10 Years..............................     *             226          *             *             *            *
Class B shares
 (Assuming complete redemption at end of
 period)
    1 Year................................       73           73            72            72            73           72
    3 Years...............................      100          100            97            97           102           99
    5 Years...............................     *             135          *             *             *            *
    10 Years (2)..........................     *             241          *             *             *            *
 (Assuming no redemption)
    1 Year................................       23           23            22            22            23           22
    3 Years...............................       70           70            67            67            72           69
    5 Years...............................     *             120          *             *             *            *
    10 Years (2)..........................     *             241          *             *             *            *
Class C shares
 (Assuming complete redemption immediately
 prior to the end of period)
    1 Year................................       33           33            32            32            33           32
    3 Years...............................       70           70            67            67            72           69
    5 Years...............................     *             120          *             *             *            *
    10 Years..............................     *             258          *             *             *            *
 (Assuming no redemption)
    1 Year................................       23           23            22            22            23           22
    3 Years...............................       70           70            67            67            72           69
    5 Years...............................     *             120          *             *             *            *
    10 Years..............................     *             258          *             *             *            *
</TABLE>
 
- ------------------
 *   Because the Aggressive Equity, Equity Growth, Mid Cap Growth, U.S. Real
     Estate and Value Funds were either not operational or had just recently
     become operational as of the date of this Prospectus, the Company has not
     projected expenses beyond the three-year period shown.
(1)  Certain large purchases may be subject to a reduced sales load. Purchases
     of Class A shares of the Funds listed above which, when combined with the
     net asset value of the purchaser's existing investment in Class A shares of
     the Funds, aggregate $1 million or more are not subject to a sales load (an
     "initial sales charge"). A contingent deferred sales charge ("CDSC") of
     1.00% will be imposed, however, on shares from any such purchase that are
     redeemed within one year following such purchase.
(2)  Class B shares automatically convert to Class A shares after eight years.
    THE FOREGOING EXAMPLES SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN
THOSE SHOWN. The Adviser in its discretion may terminate voluntary fee waivers
and/or reimbursements at any time. Absent the waiver of fees or reimbursement of
expenses, the amounts in the examples above would be greater.
 
                                       4
<PAGE>
                              FINANCIAL HIGHLIGHTS
 
    The following tables provide financial highlights for the Class A, Class B
and Class C shares of the Aggressive Equity, American Value and U.S. Real Estate
Funds for each of the respective periods presented. The audited financial
highlights are part of the Company's financial statements, which appear in the
Company's June 30, 1996 Annual Report to Shareholders. The financial statements
are included in the Company's Statement of Additional Information. The foregoing
Funds' financial highlights for each of the periods presented have been audited
by Price Waterhouse LLP, whose report thereon (which was unqualified) is also
included in the Statement of Additional Information. Additional performance
information about the Company is contained in the Annual Report. The Annual
Report and the financial statements contained therein, along with the Statement
of Additional Information, are available at no cost from the Company at the
address and telephone number noted on the cover page of this Prospectus. The
following information should be read in conjunction with the financial
statements and notes thereto. Financial highlights are not presented for the
Equity Growth, Mid Cap Growth and Value Funds because they had not commenced
operations as of June 30, 1996.
 
                                       5
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                             AGGRESSIVE EQUITY FUND
 
<TABLE>
<CAPTION>
                                                            CLASS A                   CLASS B                   CLASS C
                                                      -------------------       -------------------       -------------------
                                                       JANUARY 2, 1996*          JANUARY 2, 1996*          JANUARY 2, 1996*
SELECTED PER SHARE DATA AND RATIOS                     TO JUNE 30, 1996          TO JUNE 30, 1996          TO JUNE 30, 1996
<S>                                                   <C>                       <C>                       <C>
- -----------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF PERIOD............         $          12.00          $          12.00          $          12.00
                                                                   ------                    ------                    ------
INCOME FROM INVESTMENT OPERATIONS
  Net Investment Income.........................                     0.06                      0.03                      0.03
  Net Realized and Unrealized Gain..............                     2.40                      2.39                      2.38
                                                                   ------                    ------                    ------
  Total From Investment Operations..............                     2.46                      2.42                      2.41
                                                                   ------                    ------                    ------
DISTRIBUTIONS
  Net Investment Income.........................                    (0.06)                    (0.04)                    (0.04)
                                                                   ------                    ------                    ------
NET ASSET VALUE, END OF PERIOD..................         $          14.40          $          14.38          $          14.37
                                                                   ------                    ------                    ------
                                                                   ------                    ------                    ------
TOTAL RETURN (1)................................                    20.52%                    20.18%                    20.10%
                                                                   ------                    ------                    ------
                                                                   ------                    ------                    ------
RATIOS AND SUPPLEMENTAL DATA....................
Net Assets, End of Period (000s)................         $          5,382          $          2,426          $          2,582
Ratio of Expenses to Average Net Assets (2).....                     2.03%**                   2.67%**                   2.67%**
Ratio of Net Investment Income to Average Net
 Assets (2).....................................                     1.22%**                   0.43%**                   0.44%**
Portfolio Turnover Rate.........................                      204%                      204%                      204%
- -----------------------------------------------------------------------------------------------------------------------------
Effect of Voluntary Expense Limitation During the Period
  Per Share Benefit to Net Investment Income....         $           0.06          $           0.07          $           0.07
Ratios Before Expense Limitation:
  Expenses to Average Net Assets................                     3.26%**                   3.79%**                   3.80%**
  Net Investment Income (Loss) to Average Net
    Assets......................................                    (0.01)%**                 (0.69)%**                 (0.69)%**
Ratio of Expenses to Average Net Assets
 Excluding Dividend
  Expense on Securities Sold Short..............                     1.50%**                   2.25%**                   2.25%**
- -----------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
 * Commencement of operations
 
 ** Annualized
 
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total returns for periods of less than one year are not annualized.
 
(2) Under the terms of an investment advisory agreement, the Adviser is entitled
    to receive an investment advisory fee calculated at an annual rate of .90%
    of the average daily net assets of Aggressive Equity Fund. The Adviser has
    agreed to waive a portion of this fee and/or reimburse expenses of the
    Aggressive Equity Fund to the extent that total operating expenses of the
    Fund, excluding dividend expense of securities sold short, exceed 1.50% of
    the average daily net assets relating to the Class A shares and 2.25% of the
    average daily net assets relating to the Class B and Class C shares. For the
    fiscal period ended June 30, 1996, the Fund's prior investment adviser,
    MSAM, waived advisory fees and/or reimbursed expenses totaling approximately
    $41,000 for the Aggressive Equity Fund.
 
                                       6
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                              AMERICAN VALUE FUND
 
<TABLE>
<CAPTION>
                                                CLASS A                     CLASS B+                     CLASS C
                                ---------------------------------------    ----------    ---------------------------------------
                                 OCTOBER                                   AUGUST 1,      OCTOBER
                                18, 1993*     YEAR ENDED     YEAR ENDED       1995       18, 1993*     YEAR ENDED     YEAR ENDED
SELECTED PER SHARE DATA AND      TO JUNE       JUNE 30,       JUNE 30,      TO JUNE       TO JUNE       JUNE 30,       JUNE 30,
RATIOS                           30, 1994        1995           1996        30, 1996      30, 1994        1995           1996
<S>                             <C>           <C>            <C>           <C>           <C>           <C>            <C>
- --------------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF
 PERIOD.......................    $  12.00      $   11.70      $  12.89      $  13.37      $  12.00      $   11.69      $  12.89
                                ----------    -----------    ----------    ----------    ----------    -----------    ----------
INCOME FROM INVESTMENT
 OPERATIONS
  Net Investment Income.......        0.17           0.27          0.27          0.15          0.11           0.17          0.16
  Net Realized and Unrealized
    Gain (Loss)...............       (0.30)          1.44          1.94          1.46         (0.31)          1.44          1.94
                                ----------    -----------    ----------    ----------    ----------    -----------    ----------
  Total from Investment
    Operations................       (0.13)          1.71          2.21          1.61         (0.20)          1.61          2.10
                                ----------    -----------    ----------    ----------    ----------    -----------    ----------
DISTRIBUTIONS
  Net Investment Income.......       (0.17)         (0.28)        (0.27)        (0.15)        (0.11)         (0.17)        (0.15)
  In Excess of Net Investment
    Income....................          --             --         (0.01)        (0.01)           --             --         (0.01)
  Net Realized Gain...........          --          (0.24)        (0.19)        (0.19)           --          (0.24)        (0.19)
                                ----------    -----------    ----------    ----------    ----------    -----------    ----------
  Total Distributions.........       (0.17)         (0.52)        (0.47)        (0.35)        (0.11)         (0.41)        (0.35)
                                ----------    -----------    ----------    ----------    ----------    -----------    ----------
NET ASSET VALUE, END OF
 PERIOD.......................    $  11.70      $   12.89      $  14.63      $  14.63      $  11.69      $   12.89      $  14.64
                                ----------    -----------    ----------    ----------    ----------    -----------    ----------
                                ----------    -----------    ----------    ----------    ----------    -----------    ----------
TOTAL RETURN (1)..............       (1.12)%        15.01%        17.41%        12.29%        (1.70)%        14.13%        16.50%
                                ----------    -----------    ----------    ----------    ----------    -----------    ----------
                                ----------    -----------    ----------    ----------    ----------    -----------    ----------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period
 (000s).......................    $ 10,717      $  20,675      $ 19,674      $  2,485      $  7,237      $  13,867      $ 21,193
Ratio of Expenses to Average
 Net Assets (2)...............        1.50%**        1.50%         1.50%         2.25%**       2.25%**        2.25%         2.25%
Ratio of Net Investment Income
 to Average Net Assets (2)....        2.14%**        2.29%         1.90%         1.18%**       1.39%**        1.54%         1.17%
Portfolio Turnover Rate.......          17%           %23            41%           41%           17%           %23            41%
- --------------------------------------------------------------------------------------------------------------------------------
Effect of Voluntary Expense
 Limitation During the Period
  Per Share Benefit to Net
    Investment Income.........    $   0.08      $    0.05      $   0.04      $   0.04      $   0.08      $    0.05      $   0.04
Ratios Before Expense
 Limitation:
  Expenses to. Average Net
    Assets                            2.48%**        1.96%         1.81%         2.61%**       3.28%**        2.71%         2.58%
  Net. Investment Income to
    Average Net Assets                1.16%**        1.83%         1.59%         0.82%**       0.36%**        1.08%         0.84%
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
 * Commencement of operations.
 ** Annualized.
 + The American Value Fund began offering the current Class B shares on August
   1, 1995.
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total returns for periods of less than one year are not annualized.
(2) Under the terms of an investment advisory agreement, the Adviser is entitled
    to receive an investment advisory fee calculated at an annual rate of 0.85%
    of the average daily net assets of the American Value Fund. The Adviser has
    agreed to waive a portion of this fee and/or reimburse expenses of the
    American Value Fund to the extent that the total operating expenses of the
    Fund exceed 1.50% of the average daily net assets relating to the Class A
    shares and 2.25% of the average daily net assets relating to the Class B and
    Class C shares. For the fiscal periods ended June 30, 1994, June 30, 1995
    and June 30, 1996, the Fund's prior investment adviser, MSAM, waived
    advisory fees and/or reimbursed expenses totaling approximately $102,000,
    $110,000 and $134,000, respectively, for the American Value Fund.
 
                                       7
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                             U.S. REAL ESTATE FUND
 
<TABLE>
<CAPTION>
                                                            CLASS A                   CLASS B                   CLASS C
                                                      -------------------       -------------------       -------------------
                                                         MAY 1, 1996*              MAY 1, 1996*              MAY 1, 1996*
SELECTED PER SHARE DATA AND RATIOS                     TO JUNE 30, 1996          TO JUNE 30, 1996          TO JUNE 30, 1996
<S>                                                   <C>                       <C>                       <C>
- -----------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF PERIOD............         $          12.00          $          12.00          $          12.00
                                                                   ------                    ------                    ------
INCOME FROM INVESTMENT OPERATIONS
  Net Investment Income.........................                     0.08                      0.07                      0.07
  Net Realized and Unrealized Gain..............                     0.48                      0.48                      0.48
                                                                   ------                    ------                    ------
  Total From Investment Operations..............                     0.56                      0.55                      0.55
                                                                   ------                    ------                    ------
DISTRIBUTIONS
  Net Investment Income.........................                    (0.04)                    (0.03)                    (0.03)
                                                                   ------                    ------                    ------
NET ASSET VALUE, END OF PERIOD..................         $          12.52          $          12.52          $          12.52
                                                                   ------                    ------                    ------
                                                                   ------                    ------                    ------
TOTAL RETURN (1)................................                     4.63%                     4.54%                     4.54%
                                                                   ------                    ------                    ------
                                                                   ------                    ------                    ------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period (000s)................         $          1,829          $          2,197          $          1,782
Ratio of Expenses to Average Net Assets (2).....                     1.55%**                   2.30%**                   2.30%**
Ratio of Net Investment Income to Average Net
 Assets (2).....................................                     4.11%**                   3.35%**                   3.39%**
Portfolio Turnover Rate.........................                        0%                        0%                        0%
- -----------------------------------------------------------------------------------------------------------------------------
Effect of Voluntary Expense Limitation During the Period
  Per Share Benefit to Net Investment Income....         $           0.08          $           0.07          $           0.08
Ratios Before Expense Limitation:
  Expenses to Average Net Assets................                     5.58%**                   6.34%**                   6.32%**
  Net Investment Income to Average Net Assets...                     0.08%**                  (0.69)%**                 (0.63)%**
- -----------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
 * Commencement of operations.
 ** Annualized.
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total returns for periods of less than one year are not annualized.
(2) Under the terms of an investment advisory agreement, the Adviser is entitled
    to receive an investment advisory fee calculated at an annual rate of 1.00%
    of the average daily net assets of the U.S. Real Estate Fund. The Adviser
    has agreed to waive a portion of this fee and/or reimburse expenses of the
    U.S. Real Estate Fund to the extent that the total operating expenses of the
    Fund exceed 1.55% of the average daily net assets relating to the Class A
    shares and 2.30% of the average daily net assets relating to the Class B and
    Class C shares. For the fiscal period ended June 30, 1996, the Fund's prior
    investment adviser, MSAM, waived advisory fees and/or reimbursed expenses
    totaling approximately $35,000 for the U.S. Real Estate Fund.
 
                                       8
<PAGE>
                               PROSPECTUS SUMMARY
 
THE COMPANY
 
    The Company currently consists of twenty-two portfolios which are designed
to offer investors a range of investment choices with Van Kampen American
Capital Investment Advisory Corp. ("VK Advisory" or the "Adviser") providing
services as adviser and administrator and its affiliates, Morgan Stanley Asset
Management Inc. ("MSAM" or a "Sub-Adviser") and Miller Andersen & Sherrerd, LLP
("MAS" or a "Sub-Adviser") providing services as sub-advisers and Van Kampen
American Capital Distributors, Inc. ("VKAC Distributors") providing services as
Distributor. MAS serves as the Sub-Adviser for the Mid Cap Growth Fund and the
Value Fund. MSAM serves as the Sub-Adviser for all of the other Funds listed
below. Each Fund has its own investment objective and policies designed to meet
its specific goals. For ease of reference, the words "Morgan Stanley," which
begin the name of each Fund, have not been included in the Funds named below.
The investment objective of each Fund described in this Prospectus is as
follows:
 
    - The AGGRESSIVE EQUITY FUND seeks capital appreciation by investing
      primarily in a non-diversified portfolio of corporate equity and
      equity-linked securities.
 
    - The AMERICAN VALUE FUND seeks high total return by investing in
      undervalued equity securities of small-to medium-sized corporations.
 
    - The EQUITY GROWTH FUND seeks long-term capital appreciation by investing
      primarily in growth-oriented equity securities of medium and large
      capitalization companies.
 
    - The MID CAP GROWTH FUND seeks to achieve long-term growth by investing
      primarily in common stocks and other equity securities of smaller and
      medium size companies which are deemed by the Adviser to offer long-term
      growth potential.
 
    - The U.S. REAL ESTATE FUND seeks to provide above-average current income
      and long-term capital appreciation by investing primarily in equity
      securities of companies in the U.S. real estate industry, including real
      estate investment trusts.
 
    - The VALUE FUND seeks to achieve above-average total return over a market
      cycle of three to five years, consistent with reasonable risk, by
      investing primarily in a diversified portfolio of common stocks and other
      equity securities which are deemed by the Sub-Adviser to be relatively
      undervalued based on various measures such as price/earnings ratios and
      price/book ratios.
 
    The other Funds are described in other prospectuses which may be obtained
from the Company at the address and telephone number noted on the cover page of
this Prospectus. The objectives of these other Funds are listed below:
 
GLOBAL AND INTERNATIONAL EQUITY FUNDS:
 
    - The ASIAN GROWTH FUND seeks long-term capital appreciation through
      investment primarily in equity securities of Asian issuers, excluding
      Japan.
 
    - The EMERGING MARKETS FUND seeks long-term capital appreciation by
      investing primarily in equity securities of emerging country issuers.
 
                                       9
<PAGE>
    - The EUROPEAN EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of European issuers.
 
    - The GLOBAL EQUITY ALLOCATION FUND seeks long-term capital appreciation by
      investing in equity securities of U.S. and non-U.S. issuers in accordance
      with country weightings determined by the Sub-Adviser and with stock
      selection within each country designed to replicate a broad market index.
 
    - The GLOBAL EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of issuers throughout the world, including
      U.S. issuers.
 
    - The INTERNATIONAL MAGNUM FUND seeks long-term capital appreciation by
      investing primarily in equity securities of non-U.S. issuers in accordance
      with EAFE country weightings determined by the Sub-Adviser.
 
    - The JAPANESE EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of Japanese issuers.
 
    - The LATIN AMERICAN FUND seeks long-term capital appreciation by investing
      primarily in equity securities of Latin American issuers and investing in
      debt securities issued or guaranteed by Latin American governments or
      governmental entities.
 
U.S. EQUITY FUNDS:
 
    - The GROWTH AND INCOME FUND seeks capital appreciation and current income
      by investing primarily in equity and equity-linked securities.
 
GLOBAL FIXED INCOME FUNDS:
 
    - The EMERGING MARKETS DEBT FUND seeks high total return by investing
      primarily in debt securities of government, government-related and
      corporate issuers located in emerging countries.
 
    - The GLOBAL FIXED INCOME FUND seeks to produce an attractive real rate of
      return while preserving capital by investing in fixed income securities of
      issuers throughout the world, including U.S. issuers.
 
    - The HIGH YIELD FUND seeks to maximize total return by investing in a
      diversified portfolio of high yield fixed income securities that offer a
      yield above that generally available on debt securities in the four
      highest rating categories of the recognized rating services.
 
    - The WORLDWIDE HIGH INCOME FUND seeks high current income consistent with
      relative stability of principal and, secondarily, capital appreciation, by
      investing primarily in a portfolio of high yielding fixed income
      securities of issuers located throughout the world.
 
MONEY MARKET FUNDS:
 
    - The GOVERNMENT OBLIGATIONS MONEY MARKET FUND seeks to provide as high a
      level of current interest income as is consistent with maintaining
      liquidity and stability of principal.
 
                                       10
<PAGE>
    - The MONEY MARKET FUND seeks to provide as high a level of current interest
      income as is consistent with maintaining liquidity and stability of
      principal.
 
    - The TAX-FREE MONEY MARKET FUND seeks to provide as high a level of current
      interest income exempt from regular federal income taxes as is consistent
      with maintaining liquidity and stability of principal.
 
    THE GROWTH AND INCOME, JAPANESE EQUITY, EUROPEAN EQUITY, EMERGING MARKETS
DEBT, EQUITY GROWTH, GLOBAL EQUITY, JAPANESE EQUITY, MID CAP GROWTH AND TAX-FREE
MONEY MARKET FUNDS ARE CURRENTLY NOT BEING OFFERED.
 
INVESTMENT MANAGEMENT
 
    Van Kampen American Capital Investment Advisory Corp. ("VK Advisory," the
"Adviser" and the "Administrator") acts as investment adviser to each of the
Funds. Morgan Stanley Asset Management Inc. ("MSAM," or a "Sub-Adviser") acts as
an investment sub-adviser to each of the Funds, except the Mid Cap Growth and
Value Funds. Miller Anderson & Sherrerd, LLP ("MAS," or a "Sub-Adviser") acts as
an investment sub-adviser to each of the Mid Cap Growth and Value Funds. See
"Management of the Company -- Investment Adviser,"
" -- Investment Sub-Advisers" and " -- Administrator".
 
    On May 31, 1997, Morgan Stanley Group, Inc. ("MSGI") and Dean Witter,
Discover & Co. merged to form Morgan Stanley, Dean Witter, Discover & Co. Prior
thereto, MSGI was the parent of the Adviser, the Sub-Advisers and the
Distributor. The Adviser, Sub-Advisers and Distributor are now subsidiaries of
Morgan Stanley, Dean Witter, Discover & Co.
 
RISK FACTORS
 
    The investment policies of each Fund entail certain risks and considerations
of which an investor should be aware. The Funds described herein invest in
common stocks, which are subject to market risks that may cause their prices to
fluctuate over time. Changes in the value of portfolio securities will not
necessarily affect cash income derived from these securities, but will affect a
Fund's net asset value. The Funds, and in particular, the Aggressive Equity,
American Value, Mid Cap Growth and Value Funds, invest in small- to medium-sized
corporations, which are more vulnerable to financial risks and other risks than
larger corporations, and therefore may involve a higher degree of risk and price
volatility than investments in the securities of larger corporations. Each Fund
described herein may invest in securities that are neither listed on stock
exchanges nor traded over-the-counter, including private placement securities.
Such securities may be less liquid than publicly traded securities. The
Aggressive Equity Fund may invest in PERCS, ELKS, LYONs and similar securities
which are convertible upon various terms and conditions into equity securities,
may borrow for purposes of leverage, invest in reverse repurchase agreements and
engage in short selling. Because the U.S. Real Estate Fund invests primarily in
the securities of companies principally engaged in the real estate industry, its
investments may be subject to the risks associated with the direct ownership of
real estate. Because it is expected that the U.S. Real Estate Fund will invest a
substantial portion of its assets in real estate investment trusts ("REITs"),
the U.S. Real Estate Fund may also be subject to certain risks and costs
associated with the direct investments of REITs. The Funds may invest in
securities of foreign issuers which are subject to certain risks not typically
associated with domestic securities, including, among other risks, changes in
currency rates and in exchange control regulations, limited publicly available
information regarding foreign issuers, lower accounting, auditing and financial
standards, potential price volatility and lesser liquidity of shares traded on
securities markets, less government
 
                                       11
<PAGE>
regulation of securities markets, changes in taxes, possible seizure or
expropriation of the foreign issuer or foreign deposits, and potentially greater
difficulty in obtaining a judgment in a court outside the United States. Certain
of the Funds may invest in forward foreign currency exchange contracts, and may
invest in foreign currency exchange futures and options. In addition, the Funds
may invest in derivatives, which include options, futures and options on futures
and swaps and each Fund may invest in repurchase agreements, borrow money, lend
its portfolio securities, and purchase securities on a when-issued or delayed
delivery basis. Because the U.S. Real Estate Fund and Aggressive Equity Fund are
non-diversified portfolios, each of these Funds may invest a greater proportion
of its assets in the securities of a smaller number of issuers and, as a result,
will be subject to a greater risk resulting from such concentration of its
portfolio securities. Each Fund's share price and investment return fluctuate,
and a shareholder's investment when redeemed may be worth more or less than his
original cost. Each of these investment strategies involves specific risks which
are described under "Investment Objectives and Policies" and "Additional
Investment Information" herein and under "Investment Objectives and Policies" in
the Statement of Additional Information.
 
HOW TO INVEST
 
    The Class A, Class B and Class C shares of the Funds described herein are
designed to provide investors a choice of three ways to pay distribution costs.
Class A shares of the Funds are offered at net asset value plus an initial sales
charge of up to 5.75% in graduated percentages based on the investor's aggregate
investments in the Funds. Shares of the Class B shares and Class C shares of the
Funds are offered at net asset value. Class B shares are subject to a contingent
deferred sales charge ("CDSC") for redemptions within five years of purchase and
are subject to higher annual distribution-related expenses than the Class A
shares. Class C shares are also subject to a CDSC for redemptions within one
year of purchase and are subject to higher annual distribution-related expenses
than the Class A shares. See "Purchase of Shares" for a discussion of reduction
or waiver of sales charges, which are available for certain investors. Share
purchases may be made through VKAC Distributors, through Participating Dealers
or by sending payments directly to the Company. The minimum initial investment
is $500 for each class of a Fund, except that the minimum initial investment
amount is reduced for certain categories of investors. The minimum for
subsequent investments is $25, except that there is no minimum for automatic
reinvestment of dividends and distributions. See "Purchase of Shares."
 
HOW TO REDEEM
 
    Shares of each Fund may be redeemed at any time at the net asset value per
share price (less any applicable CDSC) of the Fund next determined after receipt
of the redemption request. The redemption price may be more or less than the
purchase. See "Redemption of Shares."
 
                                       12
<PAGE>
                       INVESTMENT OBJECTIVES AND POLICIES
 
    The investment objective of each Fund is described below, together with the
policies the Fund employs in its efforts to achieve its objective. Each Fund's
investment objective is a fundamental policy which may not be changed by the
Fund without the approval of a majority of the Fund's outstanding voting
securities. There is no assurance that a Fund will attain its objective. The
investment policies described below are not fundamental policies and may be
changed without shareholder approval. For more information about certain
investment practices of the Funds, see "Additional Information" below and
"Investment Objectives and Policies" in the Statement of Additional Information.
 
THE AGGRESSIVE EQUITY FUND
 
    The Aggressive Equity Fund's investment objective is to provide capital
appreciation by investing primarily in a non-diversified portfolio of corporate
equity and equity-linked securities. With respect to the Fund, equity and
equity-linked securities include common and preferred stock, convertible
securities, rights and warrants to purchase common stock, equity related options
and futures, and specialty securities, such as ELKS, LYONs and PERCS, of U.S.
and foreign issuers. As a non-diversified portfolio, the Fund can be more
heavily weighted in fewer stocks than a diversified portfolio. See "Investment
Limitations." Under normal circumstances, the Fund will invest at least 65% of
the value of its total assets in equity and equity-linked securities.
Equity-linked securities are derivatives, which are financial instruments that
derive their value from the value of an underlying asset, reference rate or
index.
 
    The Fund's Sub-Adviser employs a flexible and eclectic investment process in
pursuit of the Aggressive Equity Fund's investment objective. In selecting
securities for the Fund, the Sub-Adviser concentrates on a universe of rapidly
growing, high quality companies and on companies in lower, but accelerating,
earnings growth situations. The Sub-Adviser's universe of potential investments
generally comprises companies with market capitalizations of $500 million or
more but smaller market capitalization securities may be purchased from time to
time. The Fund is not restricted to investments in specific market sectors. The
Sub-Adviser uses its research capabilities, analytical resources and judgment to
assess economic, industry and market trends, as well as individual company
developments, to select promising investments for the Fund. The Sub-Adviser
concentrates on companies with strong, communicative management and clearly
defined strategies for growth. In addition, the Sub-Adviser rigorously assesses
earnings results. The Sub-Adviser seeks companies that will deliver surprisingly
strong earnings growth. Valuation is of secondary importance to the Sub-Adviser
and is viewed in the context of prospects for sustainable earnings growth and
the potential for positive earnings surprises in relation to consensus
expectations. The Fund is free to invest in any equity or equity-linked security
that, in the Sub-Adviser's judgment, provides above-average potential for
capital appreciation.
 
    In selecting investments for the Aggressive Equity Fund, the Sub-Adviser
emphasizes individual security selection. Overweighted sector positions and
issuer positions may result from the investment process. The Fund has a
long-term investment perspective; however, the Sub-Adviser may take advantage of
short-term opportunities that are consistent with the Fund's objective by
selling recently purchased securities which have increased in value.
 
    The Aggressive Equity Fund may invest in equity and equity-linked securities
of domestic and foreign corporations. However, the Fund does not expect to
invest more than 25% of its total assets at the time of purchase in securities
of foreign companies. The Fund may invest in securities of foreign issuers
directly or in
 
                                       13
<PAGE>
the form of depositary receipts. Investors should recognize that investing in
foreign companies involves certain special considerations which are not
typically associated with investing in U.S. companies. The Fund may from time to
time and consistent with applicable legal requirements sell securities short
that it owns (i.e., "against the box") or borrows. The Fund may, to a limited
extent, invest in non-publicly traded securities, private placements and
restricted securities.
 
    The Aggressive Equity Fund is authorized to borrow up to 33 1/3% of its
total assets (including the amount borrowed), less all liabilities and
indebtedness other than the borrowing, for investment purposes to increase the
opportunity for greater return and for payment of dividends. Such borrowings
would constitute leverage, which is a speculative characteristic. Leveraging
will magnify declines as well as increases in the net asset value of the Fund's
shares and in the yield on the Fund's investments. Although the Fund is
authorized to borrow, it will do so only when the Sub-Adviser believes that
borrowing will benefit the Fund after taking into account considerations such as
the costs of borrowing and the likely investment returns on securities purchased
with borrowed monies. Borrowing by the Fund will create the opportunity for
increased net income but, at the same time, will involve special risk
considerations.
 
    The Aggressive Equity Fund expects that any borrowing, for other than
temporary purposes, will be made on a secured basis. The Fund's Custodian will
either segregate the assets securing the borrowing for the benefit of the
lenders or arrangements will be made with a suitable sub-custodian. If assets
used to secure the borrowing decrease in value, the Fund may be required to
pledge additional collateral to the Lender in the form of cash or securities to
avoid liquidation of those assets.
 
    For temporary defensive purposes, the Aggressive Equity Fund may invest in
money market instruments and short- and medium-term debt securities that the
Sub-Adviser believes to be of high quality, or hold cash.
 
    For further information about the foregoing and certain additional
investment practices of the Aggressive Equity Fund, see "Additional Investment
Information" below.
 
THE AMERICAN VALUE FUND
 
    The American Value Fund's investment objective is to provide high total
return by investing in equity securities of small- to medium-sized corporations
that the Fund's Sub-Adviser believes to be undervalued relative to the stock
market in general at the time of purchase. The Fund invests primarily in
corporations domiciled in the United States with equity market capitalizations
in the range of the companies represented in the Russell 2500 Small Company
Index, but may invest in similar sized foreign companies. Such range is
currently $10 million to $5 billion, but the range fluctuates over time with the
equity market. Under normal circumstances, the Fund will invest at least 65% of
the value of its total assets in equity securities whose market capitalization
is up to the top of the range represented in the Index. The Fund may also invest
in equity securities of other corporations but will generally not invest in the
500 largest corporations in the United States. With respect to the Fund, equity
securities include common and preferred stocks, convertible securities, and
rights and warrants to purchase common stocks, and similar equity interests,
such as trusts or partnership interests. Debt securities convertible into common
stocks will be investment grade (rated in one of the four highest rating
categories by a nationally recognized statistical rating organization (an
"NRSRO")) or, if unrated, will be of comparable quality as determined by the
Sub-Adviser under the supervision of the Board of Directors. These investments
may or may not carry voting rights. The Fund may invest in non-publicly traded
securities, private placements and restricted securities. The Fund may on
occasion invest in equity securities of foreign
 
                                       14
<PAGE>
issuers that trade on a United States exchange or over-the-counter either
directly or in the form of depositary receipts. The Fund also may invest in
certain types of futures contracts and options thereon.
 
    The Sub-Adviser invests with the philosophy that a diversified portfolio of
undervalued, small- to medium-sized companies will provide high total return in
the long run. Companies considered attractive will have the following
characteristics:
 
    1.    Stocks will most often have yields distinctly above the average of
          companies with similar capitalizations.
 
    2.    The market prices of the stocks will be undervalued relative to the
          normal earning power of the companies.
 
    3.    Stock prices will be low relative to the intrinsic value of the
          companies' assets.
 
    4.    Stocks will be of high quality, in the Sub-Adviser's judgment, as
          evaluated by the companies' balance sheets, income statements,
          franchises and product competitiveness.
 
    The thrust of this approach is to seek investments in stocks for which
investor enthusiasm is currently low, as reflected in their valuation, but which
have the financial and fundamental features which, according to the
Sub-Adviser's assessment, will allow the stocks to achieve a higher valuation.
Value is achieved and exposure is reduced for the American Value Fund when the
investment community's perceptions improve and the stocks approach what the
Sub-Adviser believes is fair valuation. The Fund will invest in equity
securities of smaller capitalized companies, which are more vulnerable to
financial and other risks than larger companies. Investment in securities of
smaller companies may involve a higher degree of risk and price volatility than
in securities of larger companies.
 
    The Sub-Adviser takes a long-term approach by placing a strong emphasis on
its ability to identify attractive values. The Sub-Adviser does not intend to
respond to short-term market fluctuations or to acquire securities for the
purpose of short-term trading. The Sub-Adviser may take advantage of short-term
opportunities, however, that are consistent with its objective of high total
return. The Fund will maintain diversity among industries and will not invest
more than 25% of its total assets in the stocks of issuers in any one industry.
 
    For temporary defensive purposes, the American Value Fund may invest in
money market instruments and short- and medium-term debt securities that the
Sub-Adviser believes to be of high-quality, or hold cash.
 
    For further information about the foregoing and certain additional
investment practices of the American Value Fund, see "Additional Investment
Information" below.
 
THE EQUITY GROWTH FUND
 
    The Equity Growth Fund's investment objective is to provide long-term
capital appreciation by investing primarily in growth-oriented equity securities
of medium and large capitalization U.S. companies and, to a limited extent, as
described below, foreign corporations. Equity securities, for this purpose,
include common and preferred stocks, convertible securities, and rights and
warrants to purchase common stocks. Under normal circumstances, the Fund will
invest at least 65% of the value of its total assets in equity securities.
 
    The Sub-Adviser employs a flexible and eclectic investment process in
pursuit of the Equity Growth Fund's investment objective. In selecting
securities for the Fund, the Sub-Adviser concentrates on a universe of rapidly
 
                                       15
<PAGE>
growing, high quality companies and lower, but accelerating, earnings growth
situations. The Sub-Adviser's universe of potential investments generally
comprises companies with market capitalizations of $500 million or more. The
Fund is not restricted to investments in specific market sectors. The
Sub-Adviser uses its research capabilities, analytical resources and judgment to
assess economic, industry and market trends, as well as individual company
developments, to select promising growth investments for the Fund. The
Sub-Adviser concentrates on companies with strong, communicative management and
clearly defined strategies for growth. In addition, the Sub-Adviser rigorously
assesses company developments, including changes in strategic direction,
management focus and current and likely future earnings results. Valuation is
important to the Sub-Adviser but is viewed in the context of prospects for
sustainable earnings growth and the potential for positive earnings surprises
vis-a-vis consensus expectations. The Fund is free to invest in any equity
security that, in the Sub-Adviser's judgment, provides above average potential
for capital appreciation.
 
    In selecting investments for the Equity Growth Fund, the Sub-Adviser
emphasizes individual security selection. The Fund's investments will generally
be diversified by number of issues but concentrated sector positions may result
from the investment process. The Fund has a long-term investment perspective;
however, the Sub-Adviser may take advantage of short-term opportunities that are
consistent with the Fund's objective by selling recently purchased securities
which have increased in value.
 
    The Equity Growth Fund may invest up to 25% of its total assets at the time
of purchase in securities of foreign companies. The Fund may invest in
securities of foreign issuers directly or in the form of depositary receipts.
Investors should recognize that investing in foreign companies involves certain
special considerations which are not typically associated with investing in U.S.
companies.
 
    The Equity Growth Fund may invest in convertible securities of domestic and,
subject to the above restrictions, foreign issuers on occasions when, due to
market conditions, it is more advantageous to purchase such securities than to
purchase common stock. Since the Fund invests in both common stocks and
convertible securities, the risks of investing in the general equity markets may
be tempered to a degree by the Fund's investments in convertible securities
which are often not as volatile as common stock.
 
    The Equity Growth Fund may invest in derivatives, when-issued and delayed
delivery securities and non-publicly traded securities, including private
placements and restricted securities.
 
    For temporary defensive purposes, the Equity Growth Fund may invest in money
market instruments and short- and medium-term debt securities that the
Sub-Adviser believes to be of high quality, or hold cash.
 
    For further information about the foregoing and certain additional
investment practices of the Fund, see "Additional Investment Information" below.
 
THE MID CAP GROWTH FUND
 
    The Mid Cap Growth Fund's investment objective is to achieve long-term
growth by investing primarily in common stocks and other equity securities of
small and medium size companies which are deemed by the Fund's Sub-Adviser to
offer long-term growth potential.
 
    The Mid Cap Growth Fund generally will invest at least 65% of its total
assets in equity securities issued by companies offering long term growth
potential which have market capitalizations in the range of the companies
represented in the S&P Mid Cap 400 Index. Such range is currently $100 million
to $8 billion but the range fluctuates over time with changes in the equity
market. Equity securities for this purpose include common
 
                                       16
<PAGE>
stock, preferred stock, convertible securities, depositary receipts, foreign
equity securities, and rights and warrants to purchase stock. Up to 5% of the
Fund's assets may be invested in foreign equity securities, excluding American
Depositary Receipts ("ADRs").
 
    The Sub-Adviser manages the Mid Cap Growth Fund using a four-part process
combining quantitative, fundamental and valuation analysis with a strict sales
discipline. Stocks that pass an initial screen based on estimate revisions
undergo detailed fundamental research. The Sub-Adviser uses valuation analysis
to eliminate the most overvalued securities. The Fund sells holdings when the
Sub-Adviser's estimate revision scores fall to unacceptable levels, when its
fundamental research uncovers unfavorable trends or when the securities'
valuations exceed the level that the Sub-Adviser believes is reasonable given
their growth prospects.
 
    The Mid Cap Growth Fund may invest in derivatives, when-issued and delayed
delivery securities and non-publicly traded securities, including private
placements and restricted securities.
 
    For temporary defensive purposes, the Mid Cap Growth Fund may invest in
money market instruments and short- and medium-term debt securities that the
Sub-Adviser believes to be of high quality, or hold cash.
 
    For further information about the foregoing and certain additional
investment practices of the Fund, see "Additional Investment Information" below.
 
THE U.S. REAL ESTATE FUND
 
    The investment objective of the U.S. Real Estate Fund is to provide
above-average current income and long-term capital appreciation by investing
primarily in equity securities of companies in the U.S. real estate industry,
including real estate investment trusts ("REITs"). With respect to this Fund,
equity securities include common stocks, shares or units of beneficial interest
of REITs, limited partnership interests in master limited partnerships, rights
or warrants to purchase common stocks, securities convertible into common
stocks, and preferred stock.
 
    Under normal circumstances, at least 65% of the U.S. Real Estate Fund's
total assets will be invested in income producing equity securities of U.S. and
non-U.S. companies principally engaged in the U.S. real estate industry. For
purposes of the Fund's investment policies, a company is "principally engaged"
in the real estate industry if, as determined by the Sub-Adviser, (i) it derives
at least 50% of its revenues or profits from the ownership, construction,
management, financing or sale of residential, commercial or industrial real
estate or (ii) it has at least 50% of the fair market value of its assets
invested in residential, commercial or industrial real estate. Companies in the
real estate industry may include, among others: REITs, master limited
partnerships that invest in interests in real estate, real estate operating
companies, and companies with substantial real estate holdings, such as hotel
companies, residential builders and land-rich companies. The Fund seeks to
invest in equity securities of companies that provide a dividend yield that
exceeds the composite dividend yield of securities comprising the Standard &
Poor's Composite Index of 500 Stocks (the "S&P 500").
 
    A substantial portion of the U.S. Real Estate Fund's total assets will be
invested in securities of REITs. REITs pool investors' funds for investment
primarily in income producing real estate or real estate related loans or
interests. Generally, REITs can be classified as Equity REITs, Mortgage REITs or
Hybrid REITs. Equity REITs invest the majority of their assets directly in real
property and derive their income primarily from rents and capital gains from
appreciation realized through property sales. Equity REITs are further
categorized according to the types of real estate securities they own, e.g.,
apartment properties, retail shopping centers,
 
                                       17
<PAGE>
office and industrial properties, hotels, health-care facilities, manufactured
housing and mixed-property types. Mortgage REITs invest the majority of their
assets in real estate mortgages and derive their income primarily from interest
payments. Hybrid REITs combine the characteristics of both Equity and Mortgage
REITs. The Fund will invest primarily in Equity REITs. A REIT is not taxed on
income distributed to its shareholders or unitholders if it complies with
regulatory requirements relating to its organization, ownership, assets and
income, and with a regulatory requirement that it distribute to its shareholders
or unitholders at least 95% of its taxable income for each taxable year. A
shareholder in the Fund should realize that by investing in REITs indirectly
through the Fund, he will bear not only his proportionate share of the expenses
of the Fund, but also indirectly, the management expenses of underlying REITs.
 
    The U.S. Real Estate Fund will concentrate in the U.S. real estate industry,
but may not invest more than 25% of its total assets in securities of companies
in any one other industry (for these purposes the U.S. Government, its agencies
and instrumentalities are not considered an industry). Under normal
circumstances, the Fund may invest up to 35% of its total assets in debt
securities issued or guaranteed by real estate companies or secured by real
estate assets and rated, at time of purchase, in one of the four highest rating
categories by an NRSRO or determined by the Sub-Adviser to be of comparable
quality at the time of purchase; high quality money market instruments; or debt
securities rated in one of the two highest ratings categories by an NRSRO,
consisting of corporate debt securities and U.S. Government securities.
Securities rated in the lowest category of investment grade securities have
speculative characteristics. Investment grade securities are securities that are
rated in one of the four highest rating categories by an NRSRO. The Fund may
also, to a limited extent, invest in non-publicly traded securities, private
placements and restricted securities.
 
    For temporary defensive purposes, the Fund may invest in money market
instruments and short- and medium-term debt securities that the Sub-Adviser
believes to be of high-quality, or hold cash.
 
    For further information about the foregoing and certain additional
investment practices of the U.S. Real Estate Fund, see "Additional Investment
Information" below.
 
    RISK FACTORS RELATING TO U.S. REAL ESTATE PORTFOLIO.  The investment
policies of the U.S. Real Estate Fund entail certain risks and considerations of
which an investor should be aware. Because the Fund invests primarily in the
securities of companies principally engaged in the real estate industry, its
investments may be subject to the risks associated with the direct ownership of
real estate. These risks include: the cyclical nature of real estate values,
risks related to general and local economic conditions, overbuilding and
increased competition, increases in property taxes and operating expenses,
demographic trends and variations in rental income, changes in zoning laws,
casualty or condemnation losses, environmental risks, regulatory limitations on
rents, changes in neighborhood values, related party risks, changes in the
appeal of properties to tenants, increases in interest rates and other real
estate capital market influences. Generally, increases in interest rates will
increase the costs of obtaining financing, which could directly and indirectly
decrease the value of the Fund's investments. The Fund's share price and
investment return fluctuate, and a shareholder's investment when redeemed may be
worth more or less than his original cost.
 
    Because the U.S. Real Estate Fund may invest a substantial portion of its
assets in REITs, the Fund may also be subject to certain risks associated with
the direct investments of REITs. REITs may be affected by changes in the value
of their underlying properties and by defaults by borrowers or tenants. Mortgage
REITs may be affected by the quality of the credit extended. Furthermore, REITs
are dependent on specialized management
 
                                       18
<PAGE>
skills. Some REITs may have limited diversification and may be subject to risks
inherent in investments in a limited number of properties, in a narrow
geographic area, or in a single property type. REITs depend generally on their
ability to generate cash flow to make distributions to shareholders or
unitholders, and may be subject to defaults by borrowers and to
self-liquidations. In addition, the performance of a REIT may be affected by its
failure to qualify for tax-free pass-through of income under the Internal
Revenue Code of 1986, as amended (the "Code"), or its failure to maintain
exemption from registration under the Investment Company Act of 1940, as amended
(the "1940 Act"). Rising interest rates may cause the value of the debt
securities in which the Fund will invest to fall. Conversely, falling interest
rates may cause their value to rise. Changes in the value of portfolio
securities will not necessarily affect cash income derived from these securities
but will affect the Fund's net asset value.
 
THE VALUE FUND
 
    The Value Fund's investment objective is to achieve above-average total
return over a market cycle of three to five years, consistent with reasonable
risk, by investing in a diversified portfolio of common stocks and other equity
securities that are deemed by the Fund's Sub-Adviser to be relatively
undervalued based on various measures such as price/earnings ratios and
price/book ratios.
 
    The Value Fund generally will invest at least 65% of its assets in equity
securities which are deemed to be undervalued. Equity securities, for this
purpose, include common stock, preferred stock, convertible securities,
depositary receipts and rights and warrants to purchase stock. Up to 5% of the
Fund's assets may be invested in foreign equity securities, excluding ADRs. The
Fund generally will invest in equity securities of companies with equity
capitalization greater than $300 million.
 
    The Sub-Adviser selects common stocks which are deemed to be undervalued
relative to the stock market in general as measured by the S&P 500, based on the
value measures such as price/earnings ratios and price/ book ratios, as well as
fundamental research. While capital return will be emphasized somewhat more than
income return, the Value Fund's total return will consist of both capital and
income returns. Stocks which are deemed to be undervalued in the marketplace
have, under most market conditions, provided higher dividend income returns than
stocks which are deemed to have long-term earnings growth potential which
normally sell at higher price/earnings ratios. However, the Sub-Adviser may
select non-dividend paying stocks for their value characteristics. For temporary
defensive purposes, the Value Fund may invest without limit in money market
instruments and medium-term debt securities that the Sub-Adviser believes to be
of high quality, or hold cash.
 
    The Value Fund may invest in derivatives, when-issued and delayed delivery
securities and non-publicly traded securities, including private placements and
restricted securities.
 
    For further information about the foregoing and certain additional
investment practices of the Fund, see "Additional Investment Information" below.
 
                       ADDITIONAL INVESTMENT INFORMATION
 
BORROWING AND OTHER FORMS OF LEVERAGE
 
    The American Value and U.S. Real Estate Funds may borrow up to 10% of their
total assets as a temporary measure for extraordinary or emergency purposes.
These Funds may not purchase additional securities when borrowings exceed 5% of
total assets. The Aggressive Equity Fund may borrow amounts up to 33 1/3% of its
total
 
                                       19
<PAGE>
assets (including the amount borrowed), less all liabilities and indebtedness
other than the borrowing. See "Investment Objectives and Policies -- The
Aggressive Growth Fund" for further information.
 
    The Equity Growth, Mid Cap Growth and Value Funds may borrow money (i) as a
temporary measure for extraordinary or emergency purposes, and (ii) in
connection with reverse repurchase agreements, provided that (i) and (ii) in
combination do not exceed 33 1/3% of such Fund's total assets (including the
amount borrowed) less liabilities (exclusive of borrowings). These Funds may not
purchase additional securities when borrowings exceed 5% of total assets.
 
CONVERTIBLE SECURITIES, WARRANTS AND EQUITY-LINKED SECURITIES
 
    Each Fund may invest in convertible securities, preferred stock, warrants or
other securities exchangeable under certain circumstances for shares of common
stock. Warrants are instruments giving holders the right, but not the
obligation, to buy shares of a company at a given price during a specified
period.
 
    The Aggressive Equity, Equity Growth, Mid Cap Growth and Value Funds may
invest in equity-linked securities, which are securities that are convertible
into, or the value of which is based upon the value of, equity securities upon
certain terms and conditions. The amount received by an investor at maturity of
such securities is not fixed but is based on the price of the underlying common
stock. It is impossible to predict whether the price of the underlying common
stock will rise or fall. Trading prices of the underlying common stock will be
influenced by the issuer's operational results, by complex, interrelated
political, economic, financial or other factors affecting the capital markets,
the stock exchanges on which the underlying common stock is traded and the
market segment of which the issuer is a part. In addition, it is not possible to
predict how equity-linked securities will trade in the secondary market which is
fairly developed and liquid. The market for such securities may be shallow,
however, and high volume trades may be possible only with discounting. In
addition to the foregoing risks, the return on such securities depends on the
creditworthiness of the issuer of the securities, which may be the issuer of the
underlying securities or a third party investment banker or other Lender. The
creditworthiness of such third party issuer of equity-linked securities may, and
often does, exceed the creditworthiness of the issuer of the underlying
securities. The advantage of using equity-linked securities over traditional
equity and debt securities is that the former are income producing vehicles that
may provide a higher income than the dividend income on the underlying equity
securities while allowing some participation in the capital appreciation of the
underlying equity securities. Another advantage of using equity-linked
securities is that they may be used for hedging to reduce the risk of investing
in the generally more volatile underlying equity securities.
 
DEPOSITARY RECEIPTS
 
    Depositary receipts include ADRs, Global Depositary Receipts ("GDRs"),
European Depositary Receipts ("EDRs") and other depositary receipts, to the
extent that such receipts become available. ADRs are securities, typically
issued by a U.S. financial institution (a "depositary"), that evidence ownership
interests in a security or a pool of securities issued by a foreign issuer (the
"underlying issuer") and deposited with the depositary. Each of the Funds, other
than the U.S. Real Estate Fund, may invest in ADRs and the Funds, other than the
American Value and U.S. Real Estate Funds may invest in other depository
receipts. ADRs include American Depositary Shares and New York Shares and may be
"sponsored" or "unsponsored." Sponsored ADRs are established jointly by a
depositary and the underlying issuer, whereas unsponsored ADRs may be
established by a depositary without participation by the underlying issuer.
GDRs, EDRs and other types of depositary receipts
 
                                       20
<PAGE>
are typically issued by foreign depositaries, although they may also be issued
by U.S. depositaries, and evidence ownership interests in a security or pool of
securities issued by either a foreign or a U.S. corporation.
 
FOREIGN BONDS
 
    The Value and Mid Cap Growth Funds may invest in foreign bonds. Foreign
bonds are fixed income securities denominated in foreign currency and issued and
traded primarily outside the United States, including: (1) obligations issued or
guaranteed by foreign national governments, their agencies, instrumentalities,
or political subdivisions; (2) fixed income securities issued, guaranteed or
sponsored by supranational organizations established or supported by several
national governments, including the World Bank, the European Community, the
Asian Development Bank and others; and (3) non-government foreign corporate debt
securities. Investing in foreign companies involves certain special
considerations that are not typically associated with investing in U.S.
companies. See "Foreign Investment" below.
 
FOREIGN INVESTMENT
 
    The Funds may invest in securities of foreign issuers. Investment in
securities of foreign issuers, especially in securities of issuers in emerging
countries, involves somewhat different investment risks from those affecting
securities of U.S. issuers. There may be limited publicly available information
with respect to foreign issuers, and foreign issuers are not generally subject
to uniform accounting, auditing, and financial and other reporting standards and
requirements comparable to those applicable to domestic companies. Therefore,
disclosure of certain material information may not be made and less information
may be available to investors investing in foreign countries than in the United
States. There may also be less government supervision and regulation of foreign
securities exchanges, brokers and listed companies than in the United States.
Many foreign securities markets have substantially less volume than United
States national securities exchanges, and securities of some foreign issuers are
less liquid and subject to greater price volatility than securities of
comparable domestic issuers. Brokerage commissions and other transaction costs
on foreign securities exchanges are generally higher than in the United States.
Dividends and interest paid by foreign issuers may be subject to withholding and
other foreign taxes, which may decrease the net return on foreign investments as
compared to dividends and interest paid to the Funds by domestic companies.
Additional risks include future adverse political and economic developments, the
possibility that a foreign jurisdiction might impose or change withholding taxes
on income payable with respect to foreign securities, possible seizure,
nationalization or expropriation of the foreign issuer or foreign deposits, and
the possible adoption of foreign governmental restrictions such as exchange
controls. Emerging countries may have less stable political environment than
more developed countries. Also, it may be more difficult to obtain a judgment in
a court outside the United States.
 
    Investments in securities of foreign issuers are frequently denominated in
foreign currencies, and a Fund may temporarily hold uninvested reserves in bank
deposits in foreign currencies. Therefore, the value of a Fund's assets measured
in U.S. Dollars may be affected favorably or unfavorably by changes in currency
exchange rates and exchange control regulations. Each Fund will also incur
certain costs in connection with conversions between various currencies.
 
FOREIGN CURRENCY HEDGING TRANSACTIONS
 
    The Funds, other than the U.S. Real Estate Fund, may enter into forward
foreign currency exchange contracts ("forward contracts"). Forward contracts
provide for the purchase or sale of an amount of a specified foreign currency at
a future date. Purposes for which such contracts may be used include protecting
against a
 
                                       21
<PAGE>
decline in a foreign currency against the U.S. Dollar between the trade date and
settlement date when a Fund purchases or sells securities, locking in the U.S.
Dollar value of dividends declared on securities held by the Fund and generally
protecting the U.S. Dollar value of securities held by the Fund against exchange
rate fluctuations. While such forward contracts may limit losses to a Fund as a
result of exchange rate fluctuations, they will also limit any exchange rate
gains that might otherwise have been realized.
 
    The Funds, other than the American Value and U.S. Real Estate Funds, may
attempt to accomplish objectives similar to those described above with respect
to forward contracts for currency by means of purchasing put or call options on
foreign currencies on exchanges. A put option gives such Funds the right to sell
a currency at the exercise price until the expiration of the option. A call
option gives the Funds the right to purchase a currency at the exercise price
until the expiration of the option. The Funds may also write covered call
options on foreign currencies for hedging purposes. See "Investment Objectives
and Policies -- Forward Foreign Currency Exchange Contracts" in the Statement of
Additional Information.
 
INVESTMENT COMPANY SECURITIES
 
    The Funds may invest in securities of another open-end or closed-end
investment company, by purchase in the open market involving only customary
brokers' commissions or in connection with mergers, acquisitions of assets or
consolidations and except as may otherwise be permitted by the 1940 Act. To the
extent a Fund invests a portion of its assets in investment company securities,
those assets will be subject to the expenses of the purchased investment company
as well as to the expenses of the Fund itself.
 
LOANS OF PORTFOLIO SECURITIES
 
    Each of the Funds may lend its securities to brokers, dealers, domestic and
foreign banks or other financial institutions for the purpose of increasing its
net investment income. These loans must be secured continuously by cash or
equivalent collateral or by a letter of credit at least equal to the market
value of the securities loaned plus accrued interest. The Aggressive Equity,
American Value, Equity Growth and U.S Real Estate Funds will not enter into
securities loan transactions exceeding in the aggregate 33 1/3% of the market
value of the Fund's total assets. As with other extensions of credit, there are
risks of delay in recovery or even loss of rights in collateral should the
borrower of the portfolio securities fail financially.
 
MONEY MARKET INSTRUMENTS
 
    Each Fund is permitted to invest in money market instruments for liquidity
and temporary defensive purposes, although the Funds intend to stay invested in
securities satisfying their primary investment objective to the extent
practical. The Funds may make money market investments pending other investment
or settlement for liquidity or in adverse market conditions. The money market
investments permitted for the Funds include obligations of the U.S. Government,
its agencies and instrumentalities, obligations of foreign sovereignties, other
debt securities, including high-grade commercial paper, repurchase agreements
and bank obligations, such as bankers' acceptances and certificates of deposit
(including Eurodollar certificates of deposit).
 
NON-PUBLICLY TRADED SECURITIES, PRIVATE PLACEMENTS AND RESTRICTED SECURITIES
 
    The Funds may invest in securities that are neither listed on a stock
exchange nor traded over the counter. Such unlisted securities may involve a
higher degree of business and financial risk that can result in substantial
losses. As a result of the absence of a public trading market for these
securities, they may be less liquid than publicly traded securities and
companies whose securities are not publicly traded may not be subject to the
disclosure and other investor protection requirements which might be applicable
if their securities were
 
                                       22
<PAGE>
publicly traded. A Fund may not invest more than 15% of its net assets in
illiquid securities nor, with respect to the Aggressive Equity, American Value
and U.S. Real Estate Funds, more than 10% of its total assets in securities
subject to legal or contractual restrictions on resale. Securities that are
restricted from sale to the public without registration ("Restricted
Securities") under the Securities Act of 1933, as amended (the "1933 Act"),
which can be offered and sold to qualified institutional buyers under Rule 144A
under the 1933 Act ("144A Securities") may be determined to be liquid under
guidelines adopted by, and subject to the supervision of, the Board of
Directors. 144A Securities may become illiquid if qualified institutional buyers
are not interested in acquiring the securities.
 
REPURCHASE AGREEMENTS
 
    Each Fund may enter into repurchase agreements with brokers, dealers or
banks that meet the credit guidelines of the Company's Board of Directors. In a
repurchase agreement, a Fund buys a security from a seller that has agreed to
repurchase it at a mutually agreed upon date and price, reflecting the interest
rate effective for the term of the agreement. A Fund always receives securities
as collateral with a market value at least equal to the purchase price,
including accrued interest, and this value is maintained during the term of the
agreement. If the seller defaults and the collateral value declines, a Fund
might incur a loss. If bankruptcy proceedings are commenced with respect to the
seller, the Fund 's realization upon the collateral may be delayed or limited.
The aggregate of certain repurchase agreements and certain other investments is
limited as set forth under "Investment Limitations."
 
REVERSE REPURCHASE AGREEMENTS
 
    The Equity Growth, Mid Cap Growth and Value Funds may enter into reverse
repurchase agreements with brokers, dealers, domestic and foreign banks or other
financial institutions that have been determined by the Adviser to be
creditworthy. In a reverse repurchase agreement, a Fund sells a security and
agrees to repurchase it at a mutually agreed upon date and price, reflecting the
interest rate effective for the term of the agreement. It may also be viewed as
the borrowing of money by a Fund. A Fund's investment of the proceeds of a
reverse repurchase agreement is the speculative factor known as leverage. A Fund
will enter into a reverse repurchase agreement only if the interest income from
investment of the proceeds is expected to be greater than the interest expense
of the transaction and the proceeds are invested for a period no longer than the
term of the agreement. A Fund will maintain with the Custodian a separate
account with a segregated portfolio of cash or liquid assets in an amount at
least equal to its purchase obligations under these agreements (including
accrued interest). If interest rates rise during a reverse repurchase agreement,
it may adversely affect a Fund's net asset value. In the event that the buyer of
securities under a reverse repurchase agreement files for bankruptcy or becomes
insolvent, the buyer or its trustee or receiver may receive an extension of time
to determine whether to enforce the Fund's repurchase obligation, and the Fund's
use of proceeds of the agreement may effectively be restricted pending such
decision.
 
SHORT SALES
 
    The Aggressive Equity, Equity Growth, Mid Cap Growth and Value Funds may
from time to time sell securities short without limitation, although they do not
intend to sell securities short on a regular basis. A short sale is a
transaction in which a Fund sells securities it either owns or has the right to
acquire at no added cost (i.e., "against the box") or it does not own (but has
borrowed) in anticipation of a decline in the market price of the securities.
When a Fund makes a short sale of borrowed securities, the proceeds it receives
from the sale will be held on behalf of a broker until the Fund replaces the
borrowed securities. To deliver the securities to the
 
                                       23
<PAGE>
buyer, a Fund will need to arrange through a broker to borrow the securities
and, in so doing, the Fund will become obligated to replace the securities
borrowed at their market price at the time of replacement, whatever that price
may be. A Fund may have to pay a premium to borrow the securities and must pay
any dividends or interest payable on the securities until they are replaced.
 
    A Fund's obligation to replace the securities borrowed in connection with a
short sale will be secured by collateral deposited with the broker that consists
of cash or liquid assets. In addition if the short sale is not "against the
box," the Fund will place in a segregated account with its Custodian an amount
of cash or liquid assets equal to the difference, if any, between (1) the market
value of the securities sold at the time they were sold short and (2) any cash,
U.S. Government securities or other liquid high grade debt obligations deposited
as collateral with the broker in connection with the short sale (not including
the proceeds of the short sale). Short sales by a Fund involve certain risks and
special considerations. Possible losses from short sales differ from losses that
could be incurred from a purchase of a security, because losses from short sales
may be unlimited, whereas losses from purchases can equal only the total amount
invested.
 
TEMPORARY INVESTMENTS
 
    For temporary defensive purposes, when the Adviser or a Sub-Adviser
determines that market conditions warrant, each Fund may invest up to 100% of
its assets in money market instruments and short- and medium-term debt
securities that the Adviser or Sub-Adviser believes to be of high quality, or
hold cash. See "Investment Objectives and Policies," above for further
information about each Fund's policies.
 
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES
 
    Each Fund may purchase securities on a when-issued or delayed delivery
basis. In such transactions, instruments are bought with payment and delivery
taking place in the future in order to secure what is considered to be an
advantageous yield or price at the time of the transaction. The payment
obligation and the interest rates that will be received are each fixed at the
time a Fund enters into the commitment, and no interest accrues to the Fund
until settlement. It is the current policy of the Aggressive Equity, American
Value and U.S. Real Estate Funds not to enter into when-issued commitments or
delayed delivery securities exceeding, in the aggregate, 15% of the Fund's net
assets other than obligations created by these commitments.
 
ZERO COUPONS; PAY-IN-KIND; DEFERRED PAYMENT SECURITIES
 
    The Funds may invest in zero coupon securities, which are securities that
are sold at a discount to par value and on which interest payments are not made
during the life of the security. Upon maturity, the holder is entitled to
receive the par value of the security. While interest payments are not made on
such securities, holders of such securities are deemed to have received annually
"phantom income." Because a Fund will distribute its "phantom income" to
shareholders, to the extent that shareholders elect to receive dividends in cash
rather than reinvesting such dividends in additional shares, the Fund will have
fewer assets with which to purchase income producing securities. A Fund accrues
income with respect to these securities prior to the receipt of cash payments.
Pay-in-kind securities are securities that have interest payable by delivery of
additional securities. Upon maturity, the holder is entitled to receive the
aggregate par value of the securities. Deferred payment securities are
securities that remain zero coupon securities until a predetermined date, at
which time the stated coupon rate becomes effective and interest becomes payable
at regular intervals. Zero coupon, pay-in-kind and deferred payment securities
may be subject to greater fluctuation in value and lesser liquidity in the event
of
 
                                       24
<PAGE>
adverse market conditions than comparably rated securities paying cash interest
at regular interest payment periods.
 
DERIVATIVE INSTRUMENTS
 
    The Funds are permitted to invest in various derivative instruments for both
hedging and non-hedging purposes. Derivative instruments include options,
futures and options on futures, structured notes, caps, floors, collars and
swaps. Additionally, the Funds may invest in other derivative instruments that
are developed over time if their use would be consistent with the objectives of
the Funds. Each of the Funds, other than (to the extent described below) the
Equity Growth, Mid Cap Growth and Value Funds, will limit its use of the
foregoing derivative instruments for non-hedging purposes to 33 1/3% of its
total assets measured by the aggregate notional amount of outstanding derivative
instruments. In addition, none of the Aggressive Equity, American Value and U.S.
Real Estate Funds will enter into futures contracts and options on futures
contracts to the extent that the notional value of its outstanding obligations
to purchase securities under such contracts would exceed 20% of its total
assets. The Equity Growth Fund will limit its use of derivative instruments to
50% of its total assets measured by the aggregate notional amount of outstanding
derivative instruments, provided that no more than 33 1/3% of its total assets
are invested, for non-hedging purposes, in derivatives other than futures and
options on futures. The Mid Cap Growth and Value Funds will not enter into
futures contracts to the extent that each Fund's outstanding obligations to
purchase securities under these contracts, in combination with its outstanding
obligations with respect to options transactions, would exceed 50% of its total
assets. The Funds' investments in forward foreign currency contracts and
derivatives used for hedging purposes are not subject to the limits described
above.
 
    The Funds may use derivatives instruments under a number of different
circumstances to further their investment objectives. The Funds may use
derivatives when doing so provides more liquidity than the direct purchase of
the securities underlying such derivatives. For example, a Fund may purchase
derivatives to quickly gain exposure to a market in response to changes in the
Fund's asset allocation policy or upon the inflow of investable cash when the
derivative provides greater liquidity than the underlying securities market. A
Fund may also use derivatives when it is restricted from directly owning the
underlying securities due to foreign investment restrictions or other reasons or
when doing so provides a price advantage over purchasing the underlying
securities directly, either because of a pricing differential between the
derivatives and securities markets or because of lower transaction costs
associated with the derivatives transaction. Derivatives may also be used by a
Fund for hedging purposes and under other circumstances in which a Fund's
portfolio managers believe it advantageous to do so consistent with the Fund's
investment objective. The Funds will not, however, use derivatives in a manner
that creates leverage, except to the extent that the use of leverage is
expressly permitted by a particular Fund's investment policies, and then only in
a manner consistent with such policies.
 
    Some of the derivative instruments in which the Funds may invest and the
risks related thereto are described in more detail below.
 
CAPS, FLOORS AND COLLARS
 
    The Funds may invest in caps, floors and collars, which are instruments
analogous to options. In particular, a cap is the right to receive the excess of
a reference rate over a given rate and is analogous to a put option. A floor is
the right to receive the excess of a given rate over a reference rate and is
analogous to a call option. Finally, a collar is an instrument that combines a
cap and a floor. That is, the buyer of a collar buys a cap and
 
                                       25
<PAGE>
writes a floor, and the writer of a collar writes a cap and buys a floor. The
risks associated with caps, floors and collars are similar to those associated
with options. In addition, caps, floors and collars are subject to risk of
default by the counterparty because they are privately negotiated instruments.
 
FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS
 
    The Funds may purchase and sell futures contracts and options on futures
contracts, including but not limited to securities index futures, foreign
currency exchange futures, interest rate futures contracts and other financial
futures. Futures contracts provide for the sale by one party and purchase by
another party of a specified amount of a specific security, instrument or basket
thereof, at a specific future date and at a specified price. An option on a
futures contract is a legal contract that gives the holder the right to buy or
sell a specified amount of futures contracts at a fixed or determinable price
upon the exercise of the option.
 
    The Funds may sell securities index futures contracts and/or options thereon
in anticipation of or during a market decline to attempt to offset the decrease
in market value of investments in its portfolio, or purchase securities index
futures in order to gain market exposure. Subject to applicable laws, the Funds
may engage in transactions in securities index futures contracts (and options
thereon) which are traded on a recognized securities or futures exchange, or may
purchase or sell such instruments in the over-the-counter market. There
currently are limited securities index futures and options on such futures in
many countries, particularly emerging countries. The nature of the strategies
adopted by the Adviser and Sub-Advisers and the extent to which those strategies
are used, may depend on the development of such markets.
 
    The Funds may engage in transactions involving foreign currency exchange
futures contracts. Such contracts involve an obligation to purchase or sell a
specific currency at a specified future date and at a specified price. The Funds
may engage in such transactions to hedge their respective holdings and
commitments against changes in the level of future currency rates or to adjust
their exposure to a particular currency.
 
    The Funds may engage in transactions in interest rate futures transactions.
Interest rate futures contracts involve an obligation to purchase or sell a
specific debt security, instrument or basket thereof at a specified future date
at a specified price. The value of the contract rises and falls inversely with
changes in interest rates. The Funds may engage in such transactions to hedge
their holdings of debt instruments against future changes in interest rates.
 
    Financial futures are futures contracts relating to financial instruments,
such as U.S. Government securities, foreign currencies and certificates of
deposit. Such contracts involve an obligation to purchase or sell a specific
security, instrument or basket thereof at a specified future date at a specified
price. Like interest rate futures contracts, the value of financial futures
contracts rises and falls inversely with changes in interest rates. The Funds
may engage in financial futures contracts for hedging and non-hedging purposes.
 
    Under rules adopted by the Commodity Futures Trading Commission, each Fund
may enter into futures contracts and options thereon for both hedging and
non-hedging purposes, provided that not more than 5% of such Fund's total assets
at the time of entering the transaction are required as margin and option
premiums to secure obligations under such contracts relating to non-hedging
activities.
 
    Gains and losses on futures contracts and options thereon depend on the
Adviser's or the Sub-Advisers' ability to predict correctly the direction of
securities prices, interest rates and other economic factors. Other risks
associated with the use of futures and options are (i) imperfect correlation
between the change in market
 
                                       26
<PAGE>
value of investments held by a Fund and the prices of futures and options
relating to investments purchased or sold by the Fund, and (ii) possible lack of
a liquid secondary market for a futures contract and the resulting inability to
close a futures position. The risk that a Fund will be unable to close out a
futures position or options contract will be minimized by only entering into
futures contracts or options transactions for which there appears to be a liquid
exchange or secondary market. The risk of loss in trading on futures contracts
in some strategies can be substantial, due both to the low margin deposits
required and the high degree of leverage involved in futures pricing.
 
OPTIONS TRANSACTIONS
 
    The Funds may seek to increase their returns or may hedge their portfolio
investments through options transactions with respect to securities,
instruments, indices or baskets thereof in which such Funds may invest, as well
as with respect to foreign currency. Purchasing a put option gives a Fund the
right to sell a specified security, currency or basket of securities or
currencies at the exercise price until the expiration of the option. Purchasing
a call option gives a Fund the right to purchase a specified security, currency
or basket of securities or currencies at the exercise price until the expiration
of the option.
 
    Each Fund also may write (i.e., sell) put and call options on investments
held in its portfolio, as well as with respect to foreign currency. A Fund that
has written an option receives a premium, which increases the Fund's return on
the underlying security or instrument in the event the option expires
unexercised or is closed out at a profit. However, by writing a call option, a
Fund will limit its opportunity to profit from an increase in the market value
of the underlying security or instrument above the exercise price of the option
for as long as the Fund's obligation as writer of the option continues. The
Funds may only write options that are "covered." A covered call option means
that so long as the Fund is obligated as the writer of the option, it will
earmark or segregate sufficient liquid assets to cover its obligations under the
option or own (i) the underlying security or instrument subject to the option,
(ii) securities or instruments convertible or exchangeable without the payment
of any consideration into the security or instrument subject to the option, or
(iii) a call option on the same underlying security with a strike price no
higher than the price at which the underlying instrument was sold pursuant to a
short option position.
 
    By writing (or selling) a put option, a Fund incurs an obligation to buy the
security or instrument underlying the option from the purchaser of the put at
the option's exercise price at any time during the option period, at the
purchaser's election. The Funds may also write options that may be exercisable
by the purchaser only on a specific date. A Fund that has written a put option
will earmark or segregate sufficient liquid assets to cover its obligations
under the option or will own a put option on the same underlying security with
an equal or higher strike price.
 
    The Funds may engage in transactions in options which are traded on
recognized exchanges or over-the-counter. There currently are limited options
markets in many countries, particularly emerging countries and the nature of the
strategies adopted by the Adviser and Sub-Advisers and the extent to which those
strategies are used will depend on the development of such option markets. The
primary risks associated with the use of options are (i) imperfect correlation
between the change in market value of investments held, purchased or sold by a
Fund and the prices of options relating to such investments; and (ii) possible
lack of a liquid secondary market for an option.
 
                                       27
<PAGE>
STRUCTURED NOTES
 
    Structured Notes are derivatives on which the amount of principal repayment
and/or interest payments is based upon the movement of one or more factors.
These factors include, but are not limited to, currency exchange rates, interest
rates (such as the prime lending rate and LIBOR) and stock indices such as the
S&P 500 Index. In some cases, the impact of the movements of these factors may
increase or decrease through the use of multipliers or deflators. The Funds may
use structured notes to tailor their investments to the specific risks and
returns the Adviser and Sub-Advisers wish to accept while avoiding or reducing
certain other risks.
 
SWAPS -- SWAP CONTRACTS
 
    Swaps and Swap Contracts are derivatives in the form of a contract or other
similar instrument in which two parties agree to exchange the returns generated
by a security, instrument, basket thereof or index for the returns generated by
another security, instrument, basket thereof or index. The payment streams are
calculated by reference to a specific security, index or instrument and an
agreed upon notional amount. The relevant indices include but are not limited
to, currencies, fixed interest rates, prices and total return on interest rate
indices, fixed income indices, stock indices and commodity indices (as well as
amounts derived from arithmetic operations on these indices). For example, a
Fund may agree to swap the return generated by a fixed income index for the
return generated by a second fixed income index. The currency swaps in which the
Funds may enter will generally involve an agreement to pay interest streams in
one currency based on a specified index in exchange for receiving interest
streams denominated in another currency. Such swaps may involve initial and
final exchanges that correspond to the agreed upon notional amount.
 
    A Fund will usually enter into swaps on a net basis, i.e., the two return
streams are netted out in a cash settlement on the payment date or dates
specified in the instrument, with a Fund receiving or paying, as the case may
be, only the net amount of the two returns. A Fund's obligations under a swap
agreement will be accrued daily (offset against any amounts owing to the Fund)
and any accrued, but unpaid, net amounts owed to a swap counterparty will be
covered by the maintenance of a segregated account consisting of cash or liquid
securities. A Fund will not enter into any swap agreement unless the
counterparty meets the rating requirements set forth in guidelines established
by the Company's Board of Directors.
 
    Interest rate and total rate of return swaps do not involve the delivery of
securities, other underlying assets, or principal. Accordingly, the risk of loss
with respect to interest rate and total rate of return swaps is limited to the
net amount of payments that a Fund is contractually obligated to make. If the
other party to an interest rate or total rate of return swap defaults, a Fund's
risk of loss consists of the net amount of payments that the Fund is
contractually entitled to receive. In contrast, currency swaps may involve the
delivery of the entire principal value of one designated currency in exchange
for the other designated currency. Therefore, the entire principal value of a
currency swap may be subject to the risk that the other party to the swap will
default on its contractual delivery obligations. If there is a default by the
counterparty, a Fund may have contractual remedies pursuant to the agreements
related to the transaction. The swaps market has grown substantially in recent
years with a large number of banks and investment banking firms acting both as
principals and as agents utilizing standardized swap documentation. As a result,
the swaps market has become relatively liquid. Swaps that include caps, floors
and collars are more recent innovations for which standardized documentation has
not yet been fully developed and, accordingly, they are less liquid than
"traditional" swaps.
 
                                       28
<PAGE>
    The use of swaps is a highly specialized activity which involves investment
techniques and risks different from those associated with ordinary portfolio
securities transactions. If the Sub-Advisers are incorrect in their forecasts of
market values, interest rates and currency exchange rates, the investment
performance of the Funds would be less favorable than it would have been if this
investment technique were not used.
 
                             INVESTMENT LIMITATIONS
 
    Each Fund, except the Aggressive Equity and U.S. Real Estate Funds, is a
diversified investment company under the 1940 Act, and, therefore, with respect
to 75% of its assets, may not (a) invest more than 5% of its total assets in the
securities of any one issuer, except obligations of the U.S. Government, its
agencies and instrumentalities, or (b) own more than 10% of the outstanding
voting securities of any one issuer. The Aggressive Equity and U.S. Real Estate
Funds are non-diversified investment companies under the 1940 Act, which means
that each such Fund is not limited by the 1940 Act in the proportion of its
total assets that may be invested in the obligations of a single issuer. Thus,
each such Fund may invest a greater proportion of its total assets in the
securities of a smaller number of issuers and, as a result, will be subject to
greater risk resulting from such concentration of its portfolio securities. Each
such Fund, however, intends to comply with the diversification requirements
imposed by the Internal Revenue Code of 1986, as amended (the "Code"), for
qualification as a regulated investment company. Each Fund also operates under
certain investment restrictions that are deemed fundamental policies and may be
changed only with the approval of the holders of a majority of the Fund's
outstanding shares. See "Investment Limitations" in the Statement of Additional
Information. In addition, each Fund operates under certain non-fundamental
investment limitations as described in the Statement of Additional Information.
 
                           MANAGEMENT OF THE COMPANY
 
    INVESTMENT ADVISER.  Van Kampen American Capital Investment Advisory Corp.
("VK Advisory," or the "Adviser") is the investment adviser and administrator of
the Funds. The Adviser provides investment advice and portfolio management
services pursuant to an advisory agreement (the "Advisory Agreement") and
subject to the supervision of the Company's Board of Directors, makes the Funds'
investment decisions, arranges for the execution of portfolio transactions and
generally manages the Funds' investments. The Advisory Agreement also provides
that VK Advisory may appoint sub-advisers to perform these portfolio management
responsibilities. See "The Sub-Advisers" below. The Adviser is entitled to
receive an aggregate advisory fee computed daily and paid monthly at the
following annual rates for each Fund:
 
<TABLE>
<S>                                                                  <C>        <C>
        Aggressive Equity Fund.....................................       0.90%
        American Value Fund........................................       0.85%
        Equity Growth Fund.........................................       0.70%
        Mid Cap Growth Fund........................................       0.75%
        U.S. Real Estate Fund......................................       1.00%
        Value Fund.................................................       0.80% First $500
                                                                                million
                                                                          0.75% Next $500 million
                                                                          0.70% Over $1 billion
</TABLE>
 
                                       29
<PAGE>
    The Adviser has agreed to a reduction in the fees payable to it and to
reimburse expenses to the applicable Fund, if necessary, if such fees or
expenses would cause total annual operating expenses of the Fund to exceed the
maximums set forth in "Fund Expenses."
 
    The Adviser is a wholly-owned subsidiary of Van Kampen American Capital,
Inc. ("Van Kampen American Capital"). Van Kampen American Capital is a
diversified asset management company with more than two million retail investor
accounts, extensive capabilities for managing institutional portfolios, and more
than $57 billion under management or supervision. Van Kampen American Capital's
more than 40 open-end and 38 closed-end funds and more than 2,500 unit
investment trust are professionally distributed by leading financial advisers
nationwide. The Distributor of the Company and the sponsor of the funds
mentioned above, is also a wholly-owned subsidiary of Van Kampen American
Capital.
 
    Van Kampen American Capital is a wholly-owned subsidiary of VK/AC Holding,
Inc. VK/AC Holding, Inc. is a wholly-owned subsidiary of MSAM Holdings II, Inc.
which, in turn, is a wholly-owned subsidiary of Morgan Stanley, Dean Witter,
Discover & Co. The Adviser's principal office is located at One Parkview Plaza,
Oakbrook Terrace, Illinois 60181.
 
    On May 31, 1997, MSGI and Dean Witter, Discover & Co. merged to form Morgan
Stanley, Dean Witter, Discover & Co. Prior thereto, MSGI was the parent of the
Adviser, Sub-Advisers and Distributor. The Adviser, Sub-Advisers and Distributor
are now subsidiaries of Morgan Stanley, Dean Witter, Discover & Co.
 
    Morgan Stanley, Dean Witter, Discover & Co. and various of its directly or
indirectly owned subsidiaries, including Morgan Stanley & Co. Incorporated, a
registered broker-dealer and investment adviser, and Morgan Stanley
International are engaged in a wide range of financial services. Their principal
businesses include securities underwriting, distribution and trading, merger,
acquisition, restructuring and other corporate finance advisory activities;
merchant banking, stock brokerage and research services; asset management;
trading of futures, options, foreign exchange, commodities and swaps (involving
foreign exchange, commodities, indices and interest rates); real estate advice,
financing and investing; and global custody, securities clearance services and
securities lending; and credit services.
 
    INVESTMENT SUB-ADVISERS.  Morgan Stanley Asset Management Inc. ("MSAM," or a
"Sub-Adviser") is the investment sub-adviser of the Aggressive Equity, American
Value, Equity Growth and U.S. Real Estate Funds and Miller Anderson & Sherrerd,
LLP ("MAS," or a "Sub-Adviser") is the investment sub-adviser of the Mid Cap
Growth and Value Funds. The Sub-Advisers provide investment advice and portfolio
management services pursuant to investment sub-advisory agreements (the
"Investment Advisory Agreements") and, subject to the supervision of the Adviser
and the Company's Board of Directors, make the Funds' investment decisions,
arrange for the execution of portfolio transactions and generally manage the
Funds' investments.
 
    The Sub-Advisers are entitled to receive sub-advisory fees computed daily
and paid quarterly at the following rates for the Funds. If the average daily
net assets of a Fund during the monthly period are less than or equal to $500
million, VK Advisory shall pay MSAM or MAS, as appropriate, one-half of the
total investment advisory fee payable to VK Advisory by the Fund (after
application of any fee waivers in effect) for such monthly period. If a Fund's
average daily net assets for the monthly period are greater than $500 million,
VK Advisory shall pay MSAM or MAS, as appropriate, a fee for such monthly period
equal to the greater of (a) one-half of what the total investment advisory fee
payable to VK Advisory by the Fund (after application of any fee waivers in
effect) for such monthly period would have been had the Fund's average daily net
assets during such period
 
                                       30
<PAGE>
been equal to $500 million, or (b) forty-five percent of the total investment
advisory fee payable to VK Advisory by the Fund (after application of any fee
waivers in effect) for such monthly period.
 
    MSAM, with principal offices at 1221 Avenue of the Americas, New York, NY
10020, conducts a worldwide portfolio management business. It provides a broad
range of portfolio management services to customers in the United States and
abroad. At May 31, 1997, MSAM had approximately $75.1 billion in assets under
management as an investment adviser or as a Named Fiduciary or Fiduciary
Adviser. MAS is a Pennsylvania limited liability partnership founded in 1969
with its principal offices at One Tower Bridge, West Conshohocken, Pennsylvania
19428. MAS provides investment services to employee benefit plans, endowment
funds, foundations and other institutional investors and has served as an
investment adviser to several open-end investment companies since 1984. At May
31, 1997, MAS had approximately $44 billion in assets under management. See
"Management of the Company -- Investment Advisory and Administrative Agreements"
in the Statement of Additional Information.
 
    PORTFOLIO MANAGERS.  The following individuals have primary portfolio
management responsibility for the Funds noted below:
 
    AGGRESSIVE EQUITY FUND -- KURT A. FEUERMAN. Kurt Feuerman is a Managing
Director of MSAM and has had primary management responsibility for the
Aggressive Equity Fund since it commenced operations. Prior to joining MSAM in
July 1993, he spent over three years in Morgan Stanley & Co. Incorporated's
("Morgan Stanley") research department where he was responsible for restaurant,
gaming and emerging growth stocks. Before joining Morgan Stanley, Mr. Feuerman
was a Managing Director at Drexel Burnham Lambert, where he had been an equity
analyst since 1984. From 1982 to 1984, Mr. Feuerman was at the Bank of New York,
following the auto and auto parts industries. Mr. Feuerman earned a B.A. degree
from McGill University, an M.A. from Syracuse University, and an M.B.A. from
Columbia University.
 
    AMERICAN VALUE FUND -- GARY G. SCHLARBAUM, WILLIAM B. GERLACH AND BRADLEY S.
DANIELS. Messrs. Schlarbaum, Gerlach and Daniels share primary responsibility
for managing the American Value Fund. Gary G. Schlarbaum, a Managing Director of
Morgan Stanley, joined MAS in 1987. He assumed responsibility for the MAS Funds'
Equity and Small Cap Value Portfolios in 1987, the MAS Funds' Balanced Portfolio
in 1992 and the MAS Funds' Multi-Asset-Class and Mid Cap Value Portfolios in
1994. Mr. Schlarbaum also is a Director of MAS Fund Distribution, Inc. He
previously was with First Chicago Investment Advisers and was a Professor at the
Krannert Graduate School at Purdue University. Mr. Schlarbaum holds a B.A. in
Economics from Coe College and a Ph.D. in Applied Economics from University of
Pennsylvania. Mr. Schlarbaum assumed primary responsibility for managing the
Fund's assets in January, 1997. Mr. Gerlach joined MSAM in July, 1996 and has
worked with the Adviser's affiliate, MAS for the past five years. He became a
portfolio manager of the Fund in November, 1996. Mr. Gerlach also became a
portfolio manager of the MAS Funds' Small Cap Value and Mid Cap Value Portfolios
in 1996. Previously, he was with Alphametrics Corporation and Wharton
Econometric Forecasting Associates. Mr. Gerlach holds a B.A. in Economics from
Haverford College. Bradley S. Daniels, a Vice President of Morgan Stanley,
joined MAS in 1985. He assumed responsibility for the MAS Funds' Small Cap Value
Portfolio in 1986 and the MAS Funds' Mid Cap Value Portfolio in 1994.
 
    EQUITY GROWTH FUND -- KURT A. FEUERMAN AND MARGARET K. JOHNSON. For a
description of Mr. Feuerman's experience, see "Aggressive Equity Fund" above.
Margaret Johnson is a Principal of MSAM and a Portfolio Manager in the
Institutional Equity Group. She joined MSAM in 1984 and worked as an Analyst in
the Marketing and Fiduciary Advisor areas. Ms. Johnson became an Equity Analyst
in 1986 and a Portfolio Manager
 
                                       31
<PAGE>
in 1989. Prior to joining Morgan Stanley, she worked for the New York City PBS
affiliate, WNET, Channel 13. She holds a B.A. degree from Yale College and is a
Chartered Financial Analyst. Mr. Feuerman and Ms. Johnson have had primary
responsibility for managing the Fund's assets since its inception.
 
    MID CAP GROWTH FUND -- ARDEN C. ARMSTRONG AND ABHI Y. KANITKAR. Arden
Armstrong, a Managing Director of Morgan Stanley, joined MAS in 1986. She
assumed responsibility for the MAS Funds Mid Cap Growth Portfolio in 1990, the
MAS Funds Growth Portfolio in 1993 and the MAS Funds Equity Portfolio in 1994.
Prior to joining MAS, Ms. Armstrong was a research analyst for American
Management Systems and for Evans Economics. Ms. Armstrong holds a B.A. (Magna
Cum Laude) in Economics from Brown University, an M.B.A. from the University of
Pennsylvania -- Wharton School and is a Chartered Financial Analyst. Abhi
Kanitkar, a Vice President of Morgan Stanley, joined MAS in 1994. He served as
an Investment Analyst from 1993 through 1994 for Newbold's Asset Management and
as Director & Investment Analyst from 1990 through 1993 for Kanitkar Investment
Services, Inc. He assumed responsibility for the MAS Funds Mid Cap Growth
Portfolio in 1996. Mr. Kanitkar holds a B.S. (Magna Cum Laude, Tau Beta Pi) in
Electrical Engineering from the University of Michigan and an M.B.A. from the
University of Pennsylvania -- Wharton School. Ms. Armstrong and Mr. Kanitkar
have shared primary responsibility for managing the Fund's assets since its
inception.
 
    U.S. REAL ESTATE FUND -- RUSSELL PLATT AND THEODORE R. BIGMAN. Mr. Platt
joined MSAM and Morgan Stanley in 1982 and currently is a Managing Director of
the Firm. He has primary responsibility for managing the real estate securities
investment business for the Adviser and serves as a member of the Investment
Committee of The Morgan Stanley Real Estate Fund ("MSREF"). Previously, Mr.
Platt served as a Director of MSREF, where he was involved in capital raising,
acquisitions, oversight of investments and investor relations. From 1991 to
1993, Mr. Platt was head of Morgan Stanley's Transaction Development Group,
which was responsible for identifying and structuring real estate investment
opportunities for the Firm and its clients worldwide. From 1990 to 1991, Mr.
Platt was based in Morgan Stanley Realty's London office, where he was
responsible for European transaction development. Prior to this, he had
extensive transaction responsibilities involving portfolio, retail, office,
hotel and apartment sales and financings. Mr. Platt graduated from Williams
College in 1982 with a B.A. in Economics and received his M.B.A. from Harvard
Business School in 1986. Mr. Bigman joined MSAM and Morgan Stanley in 1995 and
currently is a Principal of the Firm. Together with Mr. Platt, he is responsible
for MSAM's real estate securities research. Prior to joining MSAM, he was a
Director at CS First Boston, where he worked for eight years in the Real Estate
Group. Since 1992, Mr. Bigman established and managed the REIT effort at CS
First Boston including primary responsibility for $2.5 billion of initial public
offerings by real estate investment trusts. Previously, Mr. Bigman had extensive
real estate experience in a wide variety of transactions involving the financing
and sale of both individual assets and portfolios of real estate assets as well
as the acquisition and sale of several real estate companies. Mr. Bigman
graduated from Brandeis University with a B.A. in Economics and received his
M.B.A. from Harvard University.
 
    VALUE FUND -- ROBERT J. MARCIN, RICHARD M. BEHLER AND NICHOLAS J. KOVICH.
Messrs. Marcin, Behler and Kovich share primary responsibility for managing the
Value Fund. Robert J. Marcin, a Managing Director of Morgan Stanley, joined MAS
in 1988. He assumed responsibility for the MAS Funds' Value Portfolio in 1990
and the MAS Funds' Equity Portfolio in 1994. Prior to joining MAS, Mr. Marcin
was an Account Executive at Smith Barney Harris Upham and Company, Inc. Mr.
Marcin holds a B.A. (Cum Laude) from Dartmouth College and is a Chartered
Financial Analyst. Richard M. Behler, a Principal of Morgan Stanley, joined MAS
in 1995. He served as a Portfolio Manager from 1992 through 1995 for Moore
Capital Management and as a Senior Vice
 
                                       32
<PAGE>
President for Merrill Lynch Economics from 1987 through 1992. He assumed
responsibility for the MAS Funds' Value Portfolio in 1996. Mr. Behler holds a
B.A. (Cum Laude) in Economics from Villanova University and an M.A. and Ph.D. in
Economics from University of Notre Dame. Nicholas J. Kovich, a Managing Director
of Morgan Stanley, joined MAS in 1988. He assumed responsibility for the MAS
Funds' Equity Portfolio in 1994 and the MAS Funds' Value Portfolio in 1997. Mr.
Kovich received a B.S. in Chemical Engineering and an M.B.A. from University of
Kansas.
 
    ADMINISTRATORS.  VK Advisory (the "Administrator") also provides the Company
with administrative services pursuant to an administration agreement (the
"Administration Agreement"). The services provided under the Administration
Agreement are subject to the supervision of the officers and Board of Directors
of the Company and include day-to-day administration of matters related to the
corporate existence of the Company, maintenance of its records, preparation of
reports, supervision of the Company's arrangements with its custodian and
assistance in the preparation of the Company's registration statements under
federal and state laws. The Administration Agreement also provides that the
Administrator through its agents will provide the Company dividend disbursing
and transfer agent services. For its services under the Administration
Agreement, the Company pays the Administrator a monthly fee which on an annual
basis equals 0.25% of the average daily net assets of the applicable Funds.
 
    Under sub-administration agreements between the Administrator and The Chase
Manhattan Bank ("Chase"), Chase Global Funds Services Company ("CGFSC"), a
corporate affiliate of Chase, provides certain administrative services to the
Company. The Administrator supervises and monitors such administrative services
provided by CGFSC. The services provided under the sub-administration agreement
are subject to the supervision of the Board of Directors of the Company. The
Board of Directors of the Company has approved the provision of services
described above pursuant to the sub-administration agreement as being in the
best interests of the Company. CGFSC's business address is 73 Tremont Street,
Boston, Massachusetts 02108-3913. For additional information on the
Administration Agreement, see "Management of the Company" in the Statement of
Additional Information.
 
    DIRECTORS AND OFFICERS.  Pursuant to the Company's Articles of
Incorporation, the Board of Directors decides upon matters of general policy and
reviews the actions of the Adviser, Sub-Advisers, Administrator and the
Company's Distributor. The Officers of the Company conduct and supervise its
daily business operations.
 
    DISTRIBUTOR.  Van Kampen American Capital Distributors, Inc. ("VKAC
Distributors," or the "Distributor") serves as the distributor of the shares of
the Company. Under its distribution agreement (the "Distribution Agreement")
with the Company, VKAC Distributors sells shares of the Company upon the terms
and at the current offering price described in this Prospectus. VKAC
Distributors is not obligated to sell any specific number of shares of the
Company.
 
    The Company currently offers Class A shares, Class B shares and Class C
shares of the Funds other than the money market funds. The Funds that are money
market funds offer only a single class of shares. The Company may in the future
offer one or more classes of shares for each Fund that may have CDSCs or initial
sales charges or other distribution charges or a combination thereof different
from those of the classes currently offered.
 
    The Board of Directors of the Company has approved and adopted the
Distribution Agreement for the Company and a Plan for each class of the Funds
pursuant to Rule 12b-1 under the 1940 Act (each a "Plan" and together, the
"Plans"). Under each Plan, the Distributor is entitled to receive from these
Funds a distribution fee, which is accrued daily and paid quarterly, at a
maximum rate of 0.75% of the Class B shares and Class C
 
                                       33
<PAGE>
shares of each Fund, on an annualized basis of the average daily net assets of
such classes. The actual amount of such compensation is agreed upon by the
Company's Board of Directors and by the Distributor. With respect to Class B
shares, the Distributor expects to utilize substantially all of its fee to
reimburse itself for commissions paid to investment dealers, banks or financial
services firms that provide distribution, administrative or shareholder services
("Participating Dealer"). With respect to Class C shares, the Distributor
expects to reallocate substantially all of its fee to such Participating
Dealers. The Distributor may, in its discretion, voluntarily waive from time to
time all or any portion of its distribution fee and the Distributor is free to
make additional payments out of its own assets to promote the sale of Fund
shares. Class A shares, Class B shares and Class C shares are subject to a
service fee at an annual rate of 0.25% on an annualized basis of the average
daily net assets of such class of shares of a Fund. In addition to such
payments, the Advisers may use their advisory fees or other resources to pay
expenses associated with activities which might be construed to be financing the
sale of these Funds' shares including payments to third parties that provide
assistance in the distribution effort (in addition to selling shares and
providing shareholder services).
 
    The Plans obligate the Funds to accrue and pay to the Distributor the fee
agreed to under its Distribution Agreement. The Plans do not obligate the Funds
to reimburse the Distributor for the actual expenses the Distributor may incur
in fulfilling its obligations under the Plan. Thus, under each Plan, even if the
Distributor's actual expenses exceed the fee payable to it thereunder at any
given time, the Funds will not be obligated to pay more than that fee. If the
Distributor's actual expenses are less than the fee it receives, the Distributor
will retain the full amount of the fee.
 
    Each Plan for a class of Company shares, under the terms of Rule 12b-1, will
remain in effect only if approved at least annually by the Company's Board of
Directors, including those directors who are not "interested persons" of the
Company as that term is defined in the 1940 Act and who have no direct or
indirect financial interest in the operation of a Plan or in any agreements
related thereto ("12b-1 Directors"). Each Plan may be terminated at any time by
a vote of a majority of the 12b-1 Directors or by a vote of a majority of the
outstanding voting securities of the applicable class of a Fund. The fee set
forth above will be paid by the appropriate class to the Distributor unless and
until a Plan is terminated or not renewed. The Company intends to operate each
Plan in accordance with its terms and the NASD Conduct Rules concerning sales
charges.
 
    PAYMENTS TO FINANCIAL INSTITUTIONS.  The Adviser, the Sub-Advisers or their
affiliates may compensate certain financial institutions for the continued
investment of their customers' assets in the Funds pursuant to the advice of
such financial institutions. These payments will be made directly by the
Adviser, the Sub-Advisers or their affiliates from their assets, and will not be
made from the assets of the Company or by the assessment of a sales charge on
shares. Such financial institutions may also perform certain shareholder or
recordkeeping services that would otherwise be performed by CGFSC. The Advisers
may elect to enter into a contract to pay the financial institutions for such
services.
 
    EXPENSES.  The Funds are responsible for payment of certain other fees and
expenses (including professional fees, custodial fees and printing and mailing
costs) specified in the Administration and Distribution Agreements.
 
                                       34
<PAGE>
                               PURCHASE OF SHARES
 
GENERAL
 
    The Company offers three classes of shares to the public on a continuous
basis through the Distributor as principal underwriter, which is located at One
Parkview Plaza, Oakbrook Terrace, Illinois 60181. Shares are also offered
through members of the NASD who are acting as securities dealers ("dealers") and
NASD members or eligible non-NASD members who are acting as brokers or agents
for investors ("brokers"). The term "dealers" and "brokers" are sometimes
referred to herein as "Participating Dealers."
 
    Initial investments must be at least $500 for each class of shares, and
subsequent investments must be at least $25 for each class of shares. The $500
minimum may be waived by the Distributor for plans involving periodic
investments. Shares of the Company may be sold in foreign countries where
permissible. The Company and the Distributor reserve the right to refuse any
order for the purchase of shares. The Company also reserves the right to suspend
the sale of the Company's shares in response to conditions in the securities
markets or for other reasons.
 
    Shares of the Company may be purchased on any business day through
Participating Dealers. Shares may also be purchased by completing the
application accompanying this Prospectus and forwarding the application, through
the Participating Dealer, to the shareholder service agent, ACCESS Investor
Services, Inc., a wholly-owned subsidiary of Van Kampen American Capital, Inc.
("ACCESS"). When purchasing shares of the Company, investors must specify
whether the purchase is for Class A shares, Class B shares or Class C shares.
 
    Shares are offered at the next determined net asset value per share, plus a
front-end or contingent deferred sales charge depending on the class of shares
chosen by the investor, as shown in the tables herein. Net asset value per share
for each class is determined once daily as of the close of trading on the New
York Stock Exchange (the "NYSE") (currently 4:00 p.m., Eastern Time) each day
the NYSE is open. Net asset value per share for each class is determined by
dividing the value of the Fund's securities, cash and other assets (including
accrued interest) attributable to such class less all liabilities (including
accrued expenses) attributable to such class by the total number of shares of
the class outstanding.
 
    Generally, the net asset values per share of the Class A shares, Class B
shares and Class C shares are expected to be substantially the same. Under
certain circumstances, however, the per share net asset values of the Class A
shares, Class B shares and Class C shares may differ from one another,
reflecting the daily expense accruals of the distribution and the higher
transfer agency fees applicable with respect to the Class B shares and Class C
shares and the differential in the dividends paid on the classes of shares. The
price paid for shares purchased is based on the next calculation of net asset
value (plus sales charges, where applicable) after an order is received by a
Participating Dealer provided such order is transmitted to the Distributor prior
to the Distributor's close of business on such day. Orders received by
Participating Dealers after the close of the NYSE are priced based on the net
asset value calculated after the next day's close provided they are received by
the Distributor prior to the Distributor's close of business on such day. It is
the responsibility of Participating Dealers to transmit orders received by them
to the Distributor so they will be received prior to such time.
 
    Each class of shares represents an interest in the same portfolio of
investments, has the same rights and is identical in all respects, except that
(i) Class B shares and Class C shares bear the expenses of the deferred sales
arrangement and any expenses (including the distribution fee and incremental
transfer agency costs) resulting from such sales arrangement, (ii) generally,
each class has exclusive voting rights with respect to approvals of the
 
                                       35
<PAGE>
Rule 12b-1 distribution plan to which its distribution fee or service fee is
paid and (iii) Class B shares are subject to a conversion feature. Each class
has different exchange privileges and certain different shareholder service
options available. The net income attributable to Class B shares and Class C
shares and the dividends payable on Class B shares and Class C shares will be
reduced by the amount of the distribution fee and incremental transfer agency
expenses associated with such class of shares. Sales personnel of Participating
Dealers distributing the Company's shares and other persons entitled to receive
compensation for selling such shares may receive differing compensation for
selling Class A shares, Class B shares or Class C shares.
 
    In deciding which class of shares to purchase, investors should take into
consideration their investment goals, present and anticipated purchase amounts,
time horizons and temperments. Investors should consider whether, during the
anticipated life of their investment in the Fund, the accumulated distribution
fees and contingent deferred sales charges on Class B shares prior to conversion
or Class C shares would be less than the initial sales charge on Class A shares
purchased at the same time, and to what extent such differential would be offset
by the higher dividends per share on Class A shares. To assist investors in
making this determination, the table under the caption "Fund Expenses" sets
forth examples of the charges applicable to each class of shares. In this
regard, Class A shares may be more beneficial to the investor who qualifies for
reduced initial sales charges or purchases shares at net asset value, as
described herein under "Purchase of Shares -- Class A Shares." For these
reasons, it is presently the policy of the Distributor not to accept any order
of $500,000 or more for Class B Shares or any order of $1 million or more for
Class C shares as it ordinarily would be more beneficial for such an investor to
purchase Class A shares.
 
    Class A shares are not subject to an ongoing distribution fee and,
accordingly, receive correspondingly higher dividends per share. However,
because initial sales charges are deducted at the time of purchase for most
accounts under $1 million, investors in Class A shares do not have all their
funds invested initially and, therefore, initially own fewer shares. Other
investors might determine that it is more advantageous to purchase either Class
B shares or Class C shares and have all their funds invested initially, although
remaining subject to a contigent deferred sales charge. Ongoing distribution
fees on Class B shares and Class C shares will be offset to the extent of the
additional funds originally invested and any return realized on those funds.
However, there can be no assurance as to the return, if any, which will be
realized on such additional funds. For investments held for ten years or more,
the relative value upon liquidation of the three classes tends to favor Class A
or Class B shares, rather than Class C shares.
 
    Class A shares may be appropriate for investors who prefer to pay the sales
charge up front, want to take advantage of the reduced sales charges available
on larger investments, wish to maximize their current income from the start,
prefer not to pay redemption charges and/or have a longer-term investment
horizon. Class B shares may be appropriate for investors who wish to avoid a
front-end sales charge, put 100% of their investment dollars to work
immediately, and/or have a longer-term investment horizon. Class C shares may be
appropriate for investors who wish to avoid a front-end sales charge, put 100%
of their investment dollars to work immediately, have a shorter-term investment
horizon and/or desire a short contigent deferred sales charge schedule.
 
    The distribution expenses incurred by the Distributor in connection with the
sale of the shares will be reimbursed, in the case of Class A shares, from the
proceeds of the initial sales charge and, in the case of Class B shares and
Class C shares, from the proceeds of the ongoing distribution fee and any
contingent deferred sales charge incurred upon redemption within five years or
one year, respectively, of purchase. Sales personnel of
 
                                       36
<PAGE>
broker-dealers distributing the Fund's shares and other persons entitled to
receive compensation for selling such shares may receive differing compensation
for selling such shares. Investors should understand that the purpose and
function of the contingent deferred sales charge and ongoing distribution fee
with respect to Class B shares and Class C shares are the same as those of the
initial sales charge with respect to Class A shares. See "Distribution Plans."
 
    The Distributor may from time to time implement programs under which a
Participating Dealer's sales force may be eligible to win nominal awards for
certain sales efforts or under which the Distributor will reallow to any
Participating Dealer that sponsors sales contests or recognition programs
conforming to criteria established by the Distributor, or participates in sales
programs sponsored by the Distributor, an amount not exceeding the total
applicable sales charges on the sales generated by the Participating Dealer at
the public offering price during such programs. Other programs provide, among
other things and subject to certain conditions, for certain favorable
distribution arrangements for shares of the Company. Also, the Distributor in
its discretion may from time to time, pursuant to objective criteria established
by the Distributor, pay fees to, and sponsor business seminars for, qualifying
authorized dealers for certain services or activities which are primarily
intended to result in sales of shares of the Company. Fees may include payment
for travel expenses, including lodging, incurred in connection with trips taken
by invited registered representatives and members of their families to locations
within or outside of the United States for meetings or seminars of a business
nature. Such fees paid for such services and activities with respect to a Fund
will not exceed in the aggregate 1.25% of the average total daily net assets of
the Fund on an annual basis. All of the foregoing payments are made by the
Distributor out of its own assets. These programs will not change the price an
investor will pay for shares or the amount that a Fund will receive from such
sale.
 
CLASS A SHARES
 
    The public offering price of Class A shares is the next determined net asset
value plus a sales charge, as set forth herein.
 
SALES CHARGE TABLE
 
<TABLE>
<CAPTION>
                                                                        REALLOWED TO
                                                                          DEALERS
                                    AS % OF          AS % OF NET          (AS % OF
SIZE OF INVESTMENT              OFFERING PRICE     AMOUNT INVESTED    OFFERING PRICE)
- ------------------------------  ---------------   -----------------   ----------------
<S>                             <C>               <C>                 <C>
Less than $50,000.............       5.75               6.10                5.00
$50,000 but less than
 $100,000.....................       4.75               4.99                4.00
$100,000 but less than
 $250,000.....................       3.75               3.90                3.00
$250,000 but less than
 $500,000.....................       2.75               2.83                2.25
$500,000 but less than
 $1,000,000...................       2.00               2.04                1.75
$1,000,000 or more*...........         *                  *                  *
</TABLE>
 
- --------------
 
* No sales charge is payable at the time of purchase on investments of $1
  million or more, although for such investments the Fund imposes a contingent
  deferred sales charge of 1.00% in the event of certain redemptions within one
  year of the purchase. A commission will be paid to brokers, dealers or
  financial intermediaries who initiate and are responsible for purchases of $1
  million or more as follows: 1.00 % on sales to $2 million, plus 0.80% on the
  next million, plus 0.50% on the excess over $3 million. See "Purchase of
  Shares -- Purchase of Class B Shares" and "-- Purchase of Class C Shares" for
  additional information with respect to contingent deferred sales charges.
 
    In addition to the reallowances from the applicable public offering price
described herein, the Distributor may, from time to time, pay or allow
additional reallowances or promotional incentives, in the form of cash or
 
                                       37
<PAGE>
other compensation, to Participating Dealers that sell shares of the Company.
Participating Dealers which are reallowed all or substantially all of the sales
charges may be deemed to be underwriters for purposes of the Securities Act of
1933, as amended.
 
    The Distributor may also pay financial institutions (which may include
banks) and other industry professionals that provide services to facilitate
transactions in shares of the Company for their clients a transaction fee up to
the level of the reallowance allowable to Participating Dealers described
herein. Such financial institutions, other industry professionals and
Participating Dealers are hereinafter referred to as "Service Organizations."
Banks are currently prohibited under the Glass-Steagall Act from providing
certain underwriting or distribution services. If banking firms were prohibited
from acting in any capacity or providing any of the described services, the
Distributor would consider what action, if any, would be appropriate. The
Distributor does not believe that termination of a relationship with a bank
would result in any material adverse consequences to the Company. State
securities laws regarding registration of banks and other financial institutions
may differ from the interpretations of federal law expressed herein and banks
and other financial institutions may be required to register as dealers pursuant
to certain state laws.
 
QUANTITY DISCOUNTS
 
    Investors purchasing Class A shares may, under certain circumstances, be
entitled to pay reduced sales charges. The circumstances under which such
investors may pay reduced sales charges are described below.
 
    Investors or their Participating Dealers must notify the Company whenever a
quantity discount is applicable to purchases. Upon such notification, an
investor will receive the lowest applicable sales charge. Quantity discounts may
be modified or terminated at any time. For more information about quantity
discounts, investors should contact their Participating Dealer or the
Distributor.
 
    A person eligible for a reduced sales charge includes an individual, their
spouse and children under 21 years of age, and any corporation, partnership or
sole proprietorship which is 100% owned, either alone or in combination, by any
of the foregoing; a trustee or other fiduciary purchasing for a single trust
estate or single fiduciary account, or a "company" as defined in Section 2(a)(8)
of the 1940 Act.
 
    Until August 1, 1997, the phrase "Participating Funds," as used herein,
refers to all Funds of Morgan Stanley Fund, Inc. On August 1, 1997,
"Participating Funds" will refer to certain open-end investment companies
advised by the Adviser or Van Kampen American Capital Asset Management Inc. and
distributed by the Distributor as determined from time to time by the Company's
Board of Directors.
 
    VOLUME DISCOUNTS.  The size of investment shown in the preceding table
applies to the total dollar amount being invested by any person in shares of a
Fund or in any combination of shares of the Fund and shares of other
Participating Funds, although other Participating Funds may have different sales
charges.
 
    CUMULATIVE PURCHASE DISCOUNT.  The size of investment shown in the preceding
table may also be determined by combining the amount being invested in shares of
the Participating Funds plus the current offering price of all shares of the
Participating Funds which have been previously purchased and are still owned.
 
    LETTER OF INTENT.  A Letter of Intent provides an opportunity for an
investor to obtain a reduced sales charge by aggregating the investments over a
13-month period to determine the sales charge as outlined in the preceding
table. The size of investment shown in the preceding table also includes
purchases of shares of the Participating Funds over a 13-month period based on
the total amount of intended purchases plus the value of all
 
                                       38
<PAGE>
shares of the Participating Funds previously purchased and still owned. An
investor may elect to compute the 13-month period starting up to 90 days before
the date of execution of a Letter of Intent. Each investment made during the
period receive the reduced sales charge applicable to the total amount of the
investment goal. If the goal is not achieved within the period, the investor
must pay the difference between the charges applicable to the purchases made and
the charges previously paid. The initial purchase must be for an amount equal to
at least 5% of the minimum total purchased amount of the level selected. If
trades not initially made under a Letter of Intent subsequently qualify for a
lower sales charge through the 90-day back-dating provisions, an adjustment will
be made at the expiration of the Letter of Intent to give effect to the lower
charge. Such adjustments in sales charge will be used to purchase additional
shares for the shareholder at the applicable discount category. Additional
information is contained in the application form accompanying this Prospectus.
 
OTHER PURCHASE PROGRAMS
 
    Purchasers of Class A shares may be entitled to reduced initial sales
charges in connection with unit trust reinvestment programs and purchases by
registered representatives of selling firms or purchases by persons affiliated
with the Company or the Distributor. The Company reserves the right to modify or
terminate these arrangements at any time.
 
    UNIT INVESTMENT TRUST REINVESTMENT PROGRAMS.  The Company permits
unitholders of unit investment trusts to reinvest distributions from such trusts
in Class A shares of the Company at net asset value with no minimum initial or
subsequent investment requirement if the administrator of an investor's unit
investment trust program meets certain uniform criteria relating to cost savings
by the Company and the Distributor. The total sales charge for all other
investments made from unit trust distributions will be 1.00% of the offering
price (1.01% of net asset value). Of this amount, the Distributor will pay to
the Participating Dealer, if any, through which such participation in the
qualifying program was initiated 0.50% of the offering price as a dealer
concession or agency commission. Persons desiring more information with respect
to this program, including the applicable terms and conditions thereof, should
contact their Participating Dealer or the Distributor.
 
    The administrator of such a unit investment trust must have an agreement
with the Distributor pursuant to which the administrator will (1) submit a
single bulk order and make payment with a single remittance for all investments
in a Fund during each distribution period by all investors who choose to invest
in the Fund through the program and (2) provide ACCESS with appropriate backup
data for each participating investor in a computerized format fully compatible
with ACCESS' processing system.
 
    As further requirements for obtaining these special benefits, the Company
also requires that all dividends and other distributions by a Fund be reinvested
in additional shares without any systematic withdrawal program. There will be no
minimum for reinvestments from unit investment trusts. The Company will send
account activity statements to such participants on a monthly basis only, even
if their investments are made more frequently. The Company reserves the right to
modify or terminate this program at any time.
 
    NAV PURCHASE OPTIONS.  Class A shares of a Fund may be purchased at net
asset value, upon written assurance that the purchase is made for investment
purposes and that the shares will not be resold except through redemption by the
Fund, by:
 
        (1) Current or retired Trustees/Directors of funds advised by an Adviser
    and such persons' families and their beneficial accounts.
 
                                       39
<PAGE>
        (2) Current or retired directors, officers and employees of MSGI or
    VK/AC Holding, Inc. and any of their subsidiaries, employees of an
    investment subadviser to any fund described in (1) above or an affiliate of
    such subadviser, and such persons' families and their beneficial accounts.
 
        (3) Directors, officers, employees and registered representatives of
    financial institutions that have a selling group agreement with the
    Distributor and their spouses and children under 21 years of age when
    purchasing for any accounts they beneficially own, or, in the case of any
    such financial institution, when purchasing for retirement plans for such
    institution's employees.
 
        (4) Registered investments advisers, trust companies and bank trust
    departments investing on their own behalf or on behalf of their clients
    provided that the aggregate amount invested in a Fund alone, or in any
    combination of shares of the Fund and shares of other Participating Funds as
    described herein under "Purchase of Shares -- Class A Shares -- Volume
    Discounts," during the 13-month period commencing with the first investment
    pursuant hereto equals at least $1 million. The Distributor may pay
    Participating Dealers through which purchases are made an amount up to 0.50%
    of the amount invested, over a 12-month period following such transaction.
 
        (5) Trustees and other fiduciaries purchasing shares for retirement
    plans of organizations with retirement plan assets of $3 million or more and
    which invest in multiple fund families through national wirehouse alliance
    programs. The Distributor may pay commissions of up to 1.00% for such
    purchases.
 
        (6) Accounts as to which a broker, dealer or financial intermediary
    charges an account management fee ("wrap accounts"), provided the broker,
    dealer or financial intermediary has a separate agreement with the
    Distributor.
 
        (7) Investors purchasing shares of a Fund with no redemption proceeds
    from other mutual fund complexes on which the investor has paid a front-end
    sales charge or was subject to a deferred sales charge, whether or not paid,
    if such redemption has occurred no more than 30 days prior to such purchase.
    On August 1, 1997, this option will no longer be available.
 
        (8) Trusts created under pension, profit sharing or other employee
    benefit plans qualified under Section 401(a) of the Code, or custodial
    accounts held by a bank created pursuant to Section 403(b) of the Code and
    sponsored by non-profit organizations defined under Section 501(c)(3) of the
    Code and assets held by an employer or trustee in connection with an
    eligible deferred compensation plan under Section 457 of the Code. Such
    plans will qualify for purchases at net asset value provided, for plans
    initially establishing accounts with the Distributor in the Participating
    Funds after February 1, 1997, that (1) the initial amount invested in the
    Participating Funds is at least $500,000 or (2) such shares are purchased by
    an employer sponsored plan with more than 100 eligible employees. Such plans
    that have been established with a Participating Fund or have received
    proposals from the Distributor prior to February 1, 1997 based on net asset
    value purchase privileges previously in effect will be qualified to purchase
    shares of the Participating Funds at net asset value for accounts
    established on or before May 1, 1997. Section 403(b) and similar accounts
    for which Van Kampen American Capital Trust Company serves as custodian will
    not be eligible for net asset value purchases based on the aggregate
    investment made by the plan or the number of eligible employees, except
    under certain uniform criteria established by the Distributor from time to
    time. A commission will be paid to dealers who initiate and are responsible
    for such purchases within a rolling twelve month period as follows: 1.00% on
    sales up to $5 million, plus 0.50% on the next $5 million, plus
 
                                       40
<PAGE>
    0.25% on the excess over $10 million. For purchases on February 1, 1997 and
    thereafter, a commission will be paid as follows: 1.00% on sales up to $2
    million, plus 0.80% on the next $1 million, plus 0.50% on the next $47
    million, plus 0.25% on the excess over $50 million.
 
        (9) Individuals who are members of a "qualified group." For this
    purpose, a qualified group is one which (i) has been in existence for more
    than six months, (ii) has a purpose other than to acquire shares of a Fund
    or similar investments, (iii) has given and continues to give its
    endorsement or authorization, on behalf of the group, for purchase of shares
    of a Fund and other Participating Funds, (iv) has a membership that the
    authorized dealer can certify as to the group's members and (v) satisfies
    other uniform criteria established by the Distributor for the purpose of
    realizing economies of scale in distributing such shares. A qualified group
    does not include one whose sole organizational nexus, for example, is that
    its participants are credit card holders of the same institution, policy
    holders of an insurance company, customers of a bank or broker-dealer,
    clients of an investment adviser or other similar groups. Shares purchased
    in each group's participant's account in connection with this privilege will
    be subject to a contingent deferred sales charge of one percent in the event
    of redemption within one year of purchase, and a commission will be paid to
    authorized dealers who initiate and are responsible for such sales to each
    individual as follows: 1.00% on sales to $2 million, plus 0.80% on the next
    million and 0.50% on the excess over $3 million.
 
    The term "families" includes a person's spouse, children and grandchildren
under 21 years of age, parents and a person's spouse's parents.
 
    Purchase orders made pursuant to clause (4) may be placed either through
authorized dealers as described above or directly with ACCESS by the investment
adviser, trust company or bank trust department, provided that ACCESS receives
federal funds for the purchase by the close of business on the next business day
following acceptance of the order. An authorized dealer may charge a transaction
fee for placing an order with respect to such shares. Authorized dealers will be
paid a service fee as described herein under "Distribution Plans" on purchases
made as described in (3) through (9) above.
 
    The Company may terminate, or amend the terms of, offering shares of the
Fund at net asset value to the foregoing groups at any time.
 
RETIREMENT PLANS
 
    Van Kampen American Capital Trust Company ("VK Trust") provides retirement
plan services and documents and can establish investor accounts in IRAs. This
includes Simplified Employee Pension ("SEP") Plan and IRA accounts. Brochures
describing such plans and materials for establishing them are available from VK
Trust upon request. The brochures for custodial accounts with VK Trust describe
the current fees payable to VK Trust for its services as custodian. Investors
should consult with their own tax advisers before establishing a retirement
plan.
 
PURCHASE OF CLASS B SHARES
 
    Class B shares of the Funds may be purchased at net asset value without an
initial sales charge. However, a CDSC will be imposed on certain Class B shares
redeemed within five years of purchase. The charge is assessed on an amount
equal to the lesser of the then-current market value of the Class B shares
redeemed or the total cost of such shares. Accordingly, the CDSC will not be
applied to dollar amounts representing an increase in the net asset values above
the initial purchase price of the shares being redeemed. In addition, no charge
is assessed on redemptions of Class B shares derived from reinvestment of
dividends or capital gains distributions.
 
                                       41
<PAGE>
    In determining whether the CDSC is applicable to a redemption, the
calculation is made in the manner that results in the lowest possible rate.
Therefore, it is assumed that the redemption is first of any Class B shares in
the shareholder's account that represent reinvested dividends and/or
distributions, and/or of Class B shares held longer than five years after
purchase, and next of Class B shares held the longest during the initial
five-year period after purchase. The amount of the contingent deferred sales
charge, if any, will vary depending on the number of years from the time of
purchase of Class B shares until the redemption of such shares (the "holding
period"). The following table sets forth the rates of the CDSC.
 
CONTINGENT DEFERRED SALES CHARGE
 
<TABLE>
<CAPTION>
                                SALES CHARGE AS
                                 PERCENTAGE OF
                                      THE
                                 DOLLAR AMOUNT
YEAR SINCE PURCHASE                SUBJECT TO
PAYMENT WAS MADE                     CHARGE
- ------------------------------  ----------------
<S>                             <C>
First.........................        5.00%
Second........................        4.00%
Third.........................        3.00%
Fourth........................        2.50%
Fifth.........................        1.50%
Thereafter....................        None*
</TABLE>
 
- --------------
 
* As described more fully below, Class B shares automatically convert to Class A
  shares after the eighth year following purchase.
 
    Proceeds from any CDSC are paid to the Distributor and are used by the
Distributor to defray its expenses related to providing distribution-related
services to the Company in connection with the sale of the Class B shares. The
Distributor will make payments to the Participating Dealers that handle the
purchases of such shares at a rate not in excess of 4.00% of the purchase price
of such shares at the time of purchase and expects to pay to Participating
Dealers a portion of its distribution fee under the Plan as described under
"Management of the Company -- Distributor" above. Additionally, the Distributor
may pay additional promotional incentives in the form of cash or other
compensation to authorized dealers that sell Class B shares of the Funds. The
combination of the CDSC and the distribution/service fee facilitates the ability
of the Company to sell the Class B shares without a sales charge being deducted
at the time of purchase.
 
    AUTOMATIC CONVERSION TO CLASS A SHARES.  After the eighth year following
purchase, Class B shares will automatically convert to Class A shares and will
no longer be subject to the higher distribution and service fees. Such
conversion will be on the basis of the relative net asset values of the two
classes, without the imposition of any sales load, fee or other charge. Under
current tax law, the conversion is not a taxable event to the shareholder.
 
    Class B shares may also be purchased through an Automatic Investment Plan as
described below.
 
PURCHASE OF CLASS C SHARES
 
    Class C shares of the Funds may be purchased at the net asset value per
share and such shares are subject to a CDSC at the rate of 1.00% of the lesser
of the current market value of the shares redeemed or the total cost of such
shares for shares that are redeemed within one year of purchase. The Distributor
will make payments to the Participating Dealers that handle the purchases of
such shares at the rate of 1.00% of the purchase price of such shares at the
time of purchase and expects to pay to Participating Dealers most of its
distribution fee, with
 
                                       42
<PAGE>
respect to such shares, under the Rule 12b-1 Plan for such class of shares, as
described under "Management of the Company -- Distributor" above. In determining
whether a CDSC is payable, and, if so, the amount of the fee or charge, it is
assumed that shares not subject to such fee or charge are the first redeemed.
 
    WAIVER OF CDSC.  The CDSC will be waived on the redemption of Class B or
Class C shares (i) following the death or initial determination of disability
(as defined in the Code) of a shareholder; (ii) certain distributions from an
IRA or other retirement plan; (iii) to the extent that shares redeemed have been
withdrawn from a Systematic Withdrawal Plan, up to a maximum amount of 12% per
year from a shareholder account based on the value of the account at the time
the Withdrawal Plan is established; or (iv) effected pursuant to the right of
the Company to liquidate a shareholder's account as described herein under
"Redemption of Shares". A shareholder, or his or her representative, must notify
the Transfer Agent prior to the time of redemption if such circumstances exist
and the shareholder is eligible for this waiver. The shareholder is responsible
for providing sufficient documentation to the Transfer Agent to verify the
existence of such circumstances. For information on the imposition and waiver of
the CDSC, contact Investor Services at 1-800-282-4404.
 
AUTOMATIC REINVESTMENT OF DIVIDENDS AND DISTRIBUTIONS
 
    No initial sales charge or CDSC will be payable on the shares of a Fund or
class thereof purchased through the automatic reinvestment of dividends and
distributions on shares of the Fund.
 
REINSTATEMENT PRIVILEGE OF EACH CLASS
 
    A shareholder who has redeemed Class A shares of a Fund may reinvest up to
the full amount received at net asset value at the time of the reinvestment in
Class A shares of the Fund without payment of a sales charge. A shareholder who
has redeemed Class B shares of a Fund and paid a CDSC upon such redemption may
reinvest up to the full amount received upon redemption in Class A shares at net
asset value with no initial sales charge. A Class C shareholder who has redeemed
shares of a Fund may reinstate any portion or all of the net proceeds of such
redemption in Class C shares of that Fund with credit given for any CDSC paid
upon such redemption. The reinstatement privilege as to any specific Class A,
Class B or Class C shares must be exercised within 180 days of the redemption.
The Transfer Agent must receive from the shareholder or the shareholder's
Participating Dealer both a written request for reinstatement and a check or
wire which does not exceed the redemption proceeds. The written request must
state that the reinvestment is made pursuant to this reinstatement privilege. If
a loss is realized on the redemption of Class A shares, the reinvestment may be
subject to the "wash sale" rules if made within 30 days of the redemption,
resulting in a postponement of the recognition of such loss for federal income
tax purposes. The reinstatement privilege may be terminated or modified at any
time. Reinstatement at net asset value is also offered to participants in those
eligible retirement plans held or administered by Van Kampen American Capital
Trust Company for repayment of principal (and interest) on their borrowings on
such plan. See the Statement of Additional Information for further discussion of
waiver provisions.
 
                              SHAREHOLDER SERVICES
 
    The Company offers a number of shareholder services designed to facilitate
investment in its shares at little or no extra cost to the investor. Below is a
description of such services. Unless otherwise described below, each of these
services may be modified or terminated by the Company at any time.
 
    INVESTMENT ACCOUNT.  ACCESS transfer agent for the Company and a
wholly-owned subsidiary of Van Kampen American Capital, Inc. performs
bookkeeping, data processing and administration services related to
 
                                       43
<PAGE>
the maintenance of shareholder accounts. Each shareholder has an investment
account under which shares are held by ACCESS. Except as described herein, after
each share transaction in an account, the shareholder receives a statement
showing the activity in the account. Each shareholder will receive statements at
least quarterly from ACCESS showing any reinvestments of dividends and capital
gains distributions and any other activity in the account since the preceding
statement. Such shareholders also will receive separate confirmations for each
purchase or sale transaction other than reinvestment of dividends and capital
gains distributions and systematic purchases or redemptions. Additions to an
investment account may be made at any time by purchasing shares through
authorized brokers, dealers or financial intermediaries or by mailing a check
directly to ACCESS.
 
    SHARE CERTIFICATES.  Generally, the Company will not issue share
certificates. However, upon written or telephone request to the Company, a share
certificate will be issued, representing shares (with the exception of
fractional shares) of the Company. A shareholder will be required to surrender
such certificates upon redemption or transfer thereof. In addition, if such
certificates are lost the shareholder must write to the Morgan Stanley Fund c/o
ACCESS, P.O. Box 418256, Kansas City, MO 64141-9256, requesting an "affidavit of
loss" and to obtain a Surety Bond in a form acceptable to ACCESS. On the date
the letter is received ACCESS will calculate a fee for replacing the lost
certificate equal to no more than 2.00% of the net asset value of the issued
shares and bill the party to whom the replacement certificate was mailed.
 
    REINVESTMENT PLAN.  A convenient way for investors to accumulate additional
shares is by accepting dividends and capital gains distributions in shares of
the applicable Fund. Such shares are acquired at net asset value (without sales
charge) on the record date of such dividend or distribution. Unless the
shareholder instructs otherwise, the reinvestment plan is automatic. This
instruction may be made by telephone by calling (800) 282-4404 or (800) 772-8889
for the hearing impaired, or in writing to ACCESS. The investor may, on the
initial application or prior to any declaration, instruct that dividends be paid
in cash and capital gains distributions be reinvested at net asset value, or
that both dividends and capital gains distributions be paid in cash. For further
information, see "Dividends and Distributions."
 
    AUTOMATIC INVESTMENT PLAN.  An automatic investment plan is available under
which a shareholder can authorize ACCESS to charge a bank account on a regular
basis to invest pre-determined amounts in the Fund. Additional information is
available from the Distributor or authorized brokers, dealers or financial
intermediaries.
 
    DIVIDEND DIVERSIFICATION.  A shareholder may, upon written request or by
completing the appropriate section of the application form accompanied by this
Prospectus or by calling (800) 282-4404 or (800) 772-8889 for the hearing
impaired, elect to have all dividends and other distribution paid on a class of
shares of the Company invested in shares of the same class of any other Fund, so
long as a pre-existing account for such class of shares exists for such
shareholder. Both accounts must also be of the same type, either non-retirement
or retirement. Any two non-retirement accounts can be used. If the accounts are
retirement accounts, they must both be for the same class and of the same type
of retirement plan (e.g. IRA, 403(b)(7), 401(k), Keogh) and for the benefit of
the same individual.
 
    If the qualified pre-existing account does not exist, the shareholder must
establish a new account subject to minimum investment and other requirements of
the fund into which distributions would be invested. Distributions are invested
into the selected fund at its net asset value as of the payable date of the
distribution only if shares of such selected fund have been registered for sale
in the investor's state.
 
                                       44
<PAGE>
    RETIREMENT PLANS.  Eligible investors may establish individual retirement
accounts ("IRAs"); SEP; and pension and profit sharing plans; 401(k) plans; or
Section 403(b)(7) plans in the case of employees of public school systems and
certain non-profit organizations. Documents and forms containing detailed
information regarding these plans are available from the Distributor. Van Kampen
American Capital Trust Company serves as custodian under the IRA, 403(b)(7) and
Keogh plans. Details regarding fees, as well as full plan administration for
profit sharing, pension and 401(k) plans, are available from the Distributor.
 
    EXCHANGE PRIVILEGE.  Shares of the Company may be exchanged with shares of
the same class of another Participating Fund, subject to certain limitations.
Before effecting an exchange, shareholders in the Company should obtain and read
a current prospectus of the Participating Funds into which the exchange is to be
made. Shareholders may only exchange into such other Participating Funds as are
legally available for sale in their state.
 
    To be eligible for exchange, shares of a Fund generally must have been
registered in the shareholder's name for at least 30 days prior to an exchange.
Shares of a Fund registered in a shareholder's name for less than 30 days any
only be exchanged upon receipt of prior approval of the Adviser. Under normal
circumstances, it is the policy of the Adviser not to approve such requests.
 
    Class A shares of Funds that generally impose an initial sales charge are
not subject to any sales charge upon exchange into the Fund.
 
    No sales charge is imposed upon the exchange of a Class B share or a Class C
share. The contingent deferred sales charge schedule and conversion schedule
applicable to a Class B share or a Class C share acquired through the exchange
privilege is determined by reference to the Fund from which such share
originally was purchased. The holding period of a Class B share or a Class C
share acquired through the exchange privilege is determined by reference to the
date such exchanged share originally was purchased.
 
    Exchanges of shares are sales and may result in a gain or loss for federal
income tax purposes. If the shares exchanged have been held for less than 91
days, the sales charge paid on such shares is not included in the tax basis of
the exchanged shares, but is carried over and included in the tax basis of the
shares acquired.
 
    A shareholder wishing to make an exchange may do so by sending a written
request to ACCESS or by contacting the telephone transaction line at (800)
421-5684. A shareholder automatically has telephone exchange privileges unless
otherwise designated in the application form accompanied by this Prospectus. The
exchange will take place at the relative net asset values of the shares next
determined after receipt of such request with adjustment for any additional
sales charge. Any shares exchanged begin earning dividends on the next business
day after the exchange is affected. Van Kampen American Capital, Inc. and its
subsidiaries, including ACCESS (collectively, "VKAC"), and the Company employ
procedures considered by them to be reasonable to confirm that instructions
communicated by telephone are genuine. Such procedures include requiring certain
personal identification information prior to acting upon telephone instructions,
tape recording telephone communications, and providing written confirmation of
instructions communicated by telephone. If reasonable procedures are employed, a
shareholder agrees that neither VKAC nor the Company will be liable for
following telephone instructions which it reasonably believes to be genuine. If
the exchanging shareholder does not have an account in the Fund whose shares are
being acquired, a new account will be established with the same registration,
dividend and capital gains options (except dividend diversification options) and
broker, dealer or financial intermediary of record as the account from which
shares are exchanged, unless otherwise specified by the shareholder. In order to
establish a systematic withdrawal plan for the new account or dividend
diversification
 
                                       45
<PAGE>
options for the new account, an exchanging shareholder must file a specific
written request. The Company reserves the right to reject any order to acquire
its shares through exchange. In addition, the Company may restrict or terminate
the exchange privilege at any time on 60 days' notice to its shareholders of any
termination or material amendment. If an account has multiple owners, ACCESS may
rely on the instructions of any one owner.
 
    SYSTEMATIC WITHDRAWAL PLAN.  Any investor whose shares in a single account
total $5,000 or more may establish a quarterly, semi-annual or annual withdrawal
plan. Investors whose shares in a single account total $10,000 or more at the
offering price next computed after receipt of instructions have the additional
option of establishing a monthly, quarterly, semi-annual or annual withdrawal
plan. This plan provides for the orderly use of the entire account, not only the
income but also the principal, if necessary. Each withdrawal constitutes a
redemption of shares on which taxable gain or loss will be recognized. The plan
holder may arrange for monthly, quarterly, semi-annual, or annual checks in any
amount not less than $25.
 
    The CDSC on Class B shares and Class C is waived for withdrawals under the
Systematic Withdrawal Plan of a maximum of 1% per month, 3% per quarter, 6%
semiannually or 12% annually, of a shareholder's investment in, and any
dividends or distributions on, Class B shares of a Fund at the time the
Systematic Withdrawal Plan commences. Under this CDSC waiver policy, amounts
withdrawn each month will be paid by redeeming first Class B 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 no Class B shares not subject to the CDSC are available, or
not enough such shares are available, Class B shares having a CDSC will be
redeemed next, beginning with such shares held for the longest period of time
(having the lowest CDSC payable upon redemption) and continuing with shares held
the next longest period of time until shares held the shortest period of time
are redeemed. Under this policy, the least amount of CDSC will be waived by
withdrawals under the Systematic Withdrawal Plan.
 
    Under the plan, sufficient shares of the Company are redeemed to provide the
amount of the periodic withdrawal payment. Dividends and capital gains
distributions on shares held under the plan are reinvested in additional shares
at the next determined net asset value. If periodic withdrawals continuously
exceed reinvested dividends and capital gains distributions, the shareholder's
original investment will be correspondingly reduced and ultimately exhausted.
Withdrawals made concurrently with purchases of additional shares ordinarily
will be disadvantageous to the shareholder because of the duplication of sales
charges. The Company reserves the right to amend or terminate the systematic
withdrawal program on thirty days' notice to its shareholders.
 
    AUTOMATED CLEARING HOUSE ("ACH") DEPOSITS.  Holders of Class A shares can
use ACH to have redemption proceeds deposited electronically into their bank
accounts. Redemptions transferred to a bank account via the ACH plan are
available to be credited to the account on the second business day following
normal payment. In order to utilize this option, the shareholder's bank must be
a member of Automated Clearing House. In addition, the shareholder must fill out
the appropriate section of the account application. The shareholder must also
include a voided check or deposit slip from the bank account into which
redemptions are to be deposited together with the completed application. Once
ACCESS has received the application and the voided check or deposit slip, such
shareholder's designated bank account, following any redemption, will be
credited with the proceeds of such redemption. Once enrolled in the ACH plan, a
shareholder may terminate participation at any time by writing to ACCESS or by
calling 1-800-282-4404. A shareholder's bank may charge a fee for this transfer.
 
                                       46
<PAGE>
                              REDEMPTION OF SHARES
 
    Shareholders may redeem for cash some or all of their shares without charge
by the Company (other than any applicable CDSC) at any time by sending a written
request in proper form directly to the Fund c/o ACCESS, P.O. Box 418256, Kansas
City, Missouri 64141-9256, by placing the redemption request through a
Participating Dealer or by calling the Company. See "Purchase of Shares" for a
discussion of applicable CDSC levels.
 
    WRITTEN REDEMPTION REQUESTS.  In the case of redemption requests sent
directly to ACCESS, the redemption request should indicate the number of shares
or dollars to be redeemed, the class designation of such shares, the account
number and be signed exactly as the shares are registered. Signatures must
conform exactly to the account registration. If the proceeds of the redemption
would exceed $50,000, or if the proceeds are not to be paid to the record owner
at the record address, or if the record address has changed within the previous
30 days, signature(s) must be guaranteed by one of the following: a bank or
trust company; a broker-dealer, a credit union; a national securities exchange,
registered securities association or clearing agency; a savings and loan
association; or a federal savings bank. If certificates are held for the shares
being redeemed, such certificates must be endorsed for transfer or accompanied
by an endorsed stock power an d sent with the redemption request. In the event
the redemption is requested by a corporation, partnership, trust, fiduciary,
executor or administrator, additional documents may be necessary. The redemption
price is the net asset value per share next determined after the request is
received by ACCESS in proper form. Payment for shares redeemed (less any sales
charge, if applicable) will ordinarily be made by check mailed within seven
business days after acceptance by ACCESS of the request and any other necessary
documents in proper order. Such payments may be postponed or the right of
redemption suspended as provided by the rules of the SEC. If the shares to be
redeemed have been recently purchased by check, ACCESS may delay mailing a
redemption check until it confirms that the purchase check has cleared, usually
a period of up to 15 days. Any gain or loss realized on the redemption of shares
is a taxable event.
 
    DEALER REDEMPTION REQUESTS.  Shareholders may sell shares through their
securities dealer, who will submit the request to the Distributor. Orders
received from dealers must be at least $500 unless transmitted via the FUNDSERV
network. The redemption price for such shares is the net asset value next
calculated after an order is received (less any applicable CDSC) by a dealer
provided such order is transmitted to the Distributor prior to the Distributor's
close of business on such day. It is the responsibility of dealers to transmit
redemption requests received by them to the Distributor so they will be received
prior to such time. Any change in the redemption price due to failure of the
Distributor to receive a sell order prior to such time must be settled between
the shareholder and dealer. Shareholders must submit a written redemption
request in proper form (as described above under "Written Redemption Requests")
to the dealer within three business days after calling the dealer with the sell
order. Payment for shares redeemed will ordinarily be made by check mailed
within three business days to the dealer.
 
    TELEPHONE REDEMPTION REQUESTS.  The Company permits redemption of shares by
telephone and for redemption proceeds to be sent to the address of record for
the account or to the bank account of record as described below. To establish
such privilege, a shareholder must complete the appropriate section of the
application accompanying this Prospectus or call the Company at (800) 282-4404
or (800) 772-8889 for the hearing impaired, to request that a copy of the
Telephone Redemption Authorization form be sent to them for completion. To
redeem shares, contact the telephone transaction line at (800) 421-5684. VKAC
and the Company employ procedures considered by them to be reasonable to confirm
that instructions communicated by telephone are genuine. Such procedures include
requiring certain personal identification information prior to
 
                                       47
<PAGE>
acting upon telephone instructions, tape recording telephone communications, and
providing written confirmation of instructions communicated by telephone. If
reasonable procedures are employed, a shareholder agrees that neither VKAC nor
the Company will be liable for following instructions which it reasonably
believes to be genuine. VKAC and the Company may be liable for any losses due to
unauthorized or fraudulent instructions if reasonable procedures are not
followed. Telephone redemptions may not be available if the shareholder cannot
reach ACCESS by telephone, whether because all telephone lines are busy or for
any other reason, in such case, a shareholder would have to use the Company's
other redemption procedures previously described. Requests received by ACCESS
prior to 4:00 p.m., Eastern Time, on a regular business day will be processed at
the net asset value per share determined that day. These privileges are
available for all accounts other than retirement accounts. The telephone
redemption privilege is not available for shares represented by certificates. If
the shares to be redeemed have been recently purchased by check, ACCESS may
delay mailing a redemption check or wiring redemption proceeds until it confirms
that the purchase check has cleared, usually a period of up to 15 days. If an
account has multiple owners, ACCESS may rely on the instructions of any one
owner.
 
    For redemptions authorized by telephone, amounts of $50,000 or less may be
redeemed daily if the proceeds are to be paid by check sent to the shareholders'
address of record and amounts of at least $1,000 and up to $1 million may be
redeemed daily if the proceeds are to be paid by wire sent to the shareholder's
bank account of record. The proceeds must be payable to the shareholder(s) of
record. Proceeds from redemptions to be paid by check will ordinarily be mailed
within three business days to the shareholder's address of record. Proceeds from
redemptions to be paid by wire will ordinarily be wired on the next business day
to the shareholder's bank account of record. This privilege is not available if
the address or bank account of record has been changed within 30 days prior to a
telephone redemption request. The Company reserves the right at any time to
terminate, limit or otherwise modify this telephone redemption privilege.
 
    REDEMPTION UPON DISABILITY.  The Company will waive the contingent deferred
sales charge on redemptions following the disability of holders of Class B
shares and Class C shares. An individual will be considered disabled for this
purpose if he or she meets the definition thereof in Section 72(m)(7) of the
Code, which in pertinent part defines a person as disabled if such person "is
unable to engage in any substantial gainful activity by reason of any medically
determinable physical or mental impairment which can be expected to result in
death or to be of long-continued and indefinite duration." While the Company
does not specifically adopt the balance of the Code's definition which pertains
to furnishing the Secretary of Treasury with such proof as he or she may
require, the Distributor will require satisfactory proof of disability before it
determines to waive the contingent deferred sales charge on Class B shares and
Class C shares.
 
    In cases of disability, the contingent deferred sales charges on Class B
shares and Class C shares will be waived where the disabled person is either an
individual shareholder or owns the shares as a joint tenant with right of
survivorship or is the beneficial owner of a custodial or fiduciary account, and
where the redemption is made within one year of the initial determination of
disability. This waiver of the contingent deferred sales charge on Class B
shares and Class C shares applies to a total or partial redemption, but only to
redemptions of shares held at the time of the initial determination of
disability.
 
    GENERAL REDEMPTION INFORMATION.  The Company may redeem any shareholder
account with a net asset value on the date of the notice of redemption less than
the minimum investment as specified by the Directors. At least 60 days' advance
written notice of any such involuntary redemption is required and the
shareholder is given an opportunity to purchase the required value of additional
shares at the next determined net asset value without sales charge. Any
applicable contingent deferred sales charge will be deducted from the proceeds
of this
 
                                       48
<PAGE>
redemption. Any involuntary redemption may only occur if the shareholder account
is less than the minimum investment due to shareholder redemptions.
 
    As described herein under "Purchase of Shares," redemptions of Class B
shares or Class C shares are subject to a contingent deferred sales charge. In
addition, a CDSC of 1.00% may be imposed on certain redemptions of Class A
shares made within one year of purchase for investments of $1 million or more.
The CDSC incurred upon redemption is paid to the Distributor in reimbursement
for distribution-related expenses. A custodian of a retirement plan account may
charge fees based on the custodian's fee schedule.
 
    IRA redemption requests should be sent to the IRA custodian to be forwarded
to ACCESS. Where Van Kampen American Capital Trust Company serves as IRA
custodian, special IRA, 403(b)(7), or Keogh redemption forms must be obtained
from and be forwarded to Van Kampen American Capital Trust Company, P.O. Box
944, Houston, Texas 77001-0944. Contact the custodian for information.
 
    Reinstatement of net asset value is also offered to participants in those
eligible retirement plans held or administered by Van Kampen American Capital
Trust Company for repayment of principal (and interest) on their borrowings on
such plans.
 
    FOR SHARES THAT ARE HELD IN BROKER STREET NAME, YOU CANNOT REQUEST
REDEMPTION BY TELEPHONE OR BY MAIL; SUCH SHARES MAY BE REDEEMED ONLY BY
CONTACTING YOUR PARTICIPATING DEALER.
 
TRANSFER OF REGISTRATION
 
    You may transfer the registration of any of your Company shares to another
person by writing to the
Fund c/o ACCESS, P.O. Box 418256, Kansas City, Missouri 64141-9256. As in the
case of redemptions, the written request must be received in "good order" before
any transfer can be made. Shares held in broker street name may be transferred
only by contacting your Participating Dealer.
 
                              VALUATION OF SHARES
 
    Net asset value is calculated separately for each class of each Fund. The
net asset value per share of each class of shares of a Fund is determined by
dividing the total fair market value of the investments and other assets
attributable to such class of shares, less all liabilities attributable to such
class of shares, by the total number of outstanding shares of such classes of
shares. Net asset value per share of a Fund is determined as of the regular
close of the NYSE (currently 4:00 p.m., Eastern Time) on each day that the NYSE
is open for business. Securities listed on a securities exchange for which
market quotations are available are valued at their closing price. If no closing
price is available, such securities will be valued at the last quoted sale price
on the day the valuation is made. Price information on listed securities is
taken from the exchange where the security is primarily traded. Unlisted
securities and listed securities not traded on the valuation date for which
market quotations are readily available are valued at the average of the mean
between the current bid and asked prices obtained from reputable brokers.
 
    Bonds and other fixed income securities are valued according to the broadest
and most representative market, which will ordinarily be the over-the-counter
market. Net asset value includes interest on fixed income securities, which is
accrued daily. In addition, bonds and other fixed income securities may be
valued on the basis of prices provided by a pricing service when such prices are
believed to reflect the fair market value of such securities. The prices
provided by a pricing service are determined without regard to bid or last sale
prices but take into account institutional size trading in similar groups of
securities and any developments related to the
 
                                       49
<PAGE>
specific securities. Securities not priced in this manner are valued at the most
recent quoted bid price, or, when stock exchange valuations are used, at the
latest quoted sale price on the day of valuation. If there is no such reported
sale, the latest quoted bid price will be used. Debt securities purchased with
remaining maturities of 60 days or less are valued at amortized cost, if it
approximates market value. In the event that amortized cost does not approximate
market value, market prices as determined above will be used. The "amortized
cost" method of valuation does not take into account unrealized gains or losses.
This method involves valuing an instrument at its cost and thereafter assuming a
constant amortization to maturity of any discount or premium, regardless of the
impact of fluctuating interest rates on the market value of the instrument.
While this method provides certainty in valuation, it may result in periods
during which value, as determined by amortized cost, is higher or lower than the
price each Fund would receive if it sold the instrument.
 
    The value of other assets and securities for which no quotations are readily
available (including illiquid and unlisted foreign securities) and those
securities for which it is inappropriate to determine prices in accordance with
the above procedures are determined in good faith at fair value using methods
determined by the Board of Directors. For purposes of calculating net asset
value per share, all assets and liabilities initially expressed in foreign
currencies will be converted into U.S. Dollars at the mean of the bid price and
asked price of such currencies against the U.S. Dollar as quoted by a major
bank.
 
    Although the legal rights of Class A, Class B and Class C shares will be
substantially similar, the different expenses borne by each class will result in
different net asset values and dividends. Dividends will differ by approximately
the amount of the distribution expenses that have accrued for each class. The
respective net asset values of Class B shares and Class C shares will generally
be lower than the net asset value of Class A shares as a result of the larger
distribution fee charged to Class B and Class C shares.
 
                             PORTFOLIO TRANSACTIONS
 
    The Adviser and each Sub-Adviser selects the brokers or dealers that will
execute the purchases and sales of investment securities for the applicable
Fund. The Adviser and each Sub-Adviser may, consistent with NASD rules, place
portfolio orders with qualified broker-dealers who recommend the applicable Fund
to their clients or who act as agents in the purchase of shares of the Fund for
their clients.
 
    Subject to the overriding objective of obtaining the best execution of
orders, the Adviser and each Sub-Adviser may allocate a portion of the Company's
portfolio brokerage transactions to Morgan Stanley & Co. Incorporated ("Morgan
Stanley") and affiliates of the Adviser and the Sub-Advisers or broker
affiliates of Morgan Stanley under procedures adopted by the Board of Directors.
For such portfolio transactions, the commissions, fees or other remuneration
received by Morgan Stanley or such affiliates must be reasonable and fair
compared to the commissions, fees or other remuneration paid to other brokers
for comparable transactions involving similar securities being purchased or sold
during a comparable period of time.
 
    Although the objectives of each Fund described herein is not to invest for
short-term trading, each Fund will seek to take advantage of trading
opportunities as they arise to the extent they are consistent with the Fund's
objectives. Accordingly, investment securities may be sold from time to time
without regard to the length of time they have been held. Each Fund anticipates
that its annual portfolio turnover rate will not exceed 100% under normal
circumstances but market conditions could result in portfolio activity at a
greater or lesser rate than anticipated. High portfolio turnover involves
correspondingly greater transaction costs which will be borne directly by a
Fund. In addition, high portfolio turnover may result in more capital gains
which would be taxable
 
                                       50
<PAGE>
to the shareholders of the Fund. See "Financial Highlights" above for the Fund's
historical portfolio turnover rates.
 
                            PERFORMANCE INFORMATION
 
    The Company may from time to time advertise total return of the Funds
described herein. THESE FIGURES WILL BE BASED ON HISTORICAL EARNINGS AND ARE NOT
INTENDED TO INDICATE FUTURE PERFORMANCE. The "total return" shows what an
investment in a Fund would have earned over a specified period of time (such as
one, three, five or ten years) assuming that all distributions and dividends by
the Fund were reinvested on the reinvestment dates during the period. Total
return does not take into account any federal or state income taxes consequences
to shareholders subject to tax. The Company may also include comparative
performance information in advertising or marketing the Fund's shares. Such
performance information may include data from Lipper Analytical Services, Inc.
and Morgan Stanley Capital International.
 
    The respective performance figures for Class B shares and Class C shares of
the Funds will generally be lower than those for Class A shares of the Funds
because of the larger distribution fee charged to Class B shares and Class C
shares.
 
PERFORMANCE OF INVESTMENT SUB-ADVISERS
 
    MSAM manages portfolios of Morgan Stanley Institutional Fund, Inc. ("MSIF")
which served as models for the Aggressive Equity and Equity Growth Funds.
Similarly, the Value and Mid Cap Growth Funds were modeled after portfolios of
MAS Funds, which are currently managed by MAS. Each portfolio of MSIF (the "MSIF
Portfolios") and MAS Funds (the "MAS Portfolios") has substantially the same
investment objective and policies as its corresponding Fund. In addition, the
Adviser and the Sub-Advisers intend each of the Funds to be managed by the same
personnel and to continue to have closely similar investment strategies,
techniques and characteristics as the corresponding MSIF or MAS Portfolio. Past
investment performance of the MSIF Portfolios and the MAS Portfolios, as shown
in the tables below, may be relevant to your consideration of investment in a
Fund. The investment performance of the MSIF Portfolios or the MAS Portfolios is
not necessarily indicative of future performance of the Funds. Also, the
operating expenses of the Funds will be different from, and may be higher than,
the operating expenses of the corresponding MSIF or MAS Portfolio. The
investment performance of the MSIF Portfolios and MAS Portfolios are provided
merely to indicate the experience of the respective Sub-Advisers in managing
similar investment portfolios.
 
    The data set forth below under the heading "Return With Sales Charge" is
adjusted, (i) with respect to the Class A shares, to take into account a 5.75%
sales charge applicable to purchases of Class A shares of the Funds, (ii) with
respect to Class B shares, to take into account the applicable CDSC that is
imposed if Class B shares of the Funds are redeemed within the year of their
purchase indicated and (iii) with respect to the Class C shares, to take into
account a 1.00% CDSC that is imposed if Class C shares of the Funds are redeemed
within one year of their purchase. The data set forth below under the heading
"Return Without Sales Charge" is not adjusted to take into account such sales
charges.
 
                                       51
<PAGE>
       TOTAL RETURN FOR THE MSIF EQUITY GROWTH PORTFOLIO'S CLASS A SHARES
              (A SEPARATE MUTUAL FUND FROM THE EQUITY GROWTH FUND)
                    FOR THE PERIOD ENDED SEPTEMBER 30, 1996
              (ADJUSTED TO REFLECT STATED SALES LOAD OF THE FUND)
<TABLE>
<CAPTION>
RETURN WITH                                                                                 SINCE
SALES CHARGE                                                   1 YEAR      5 YEARS      INCEPTION(1)
- ------------------------------------------------------------  ---------  -----------  -----------------
<S>                                                           <C>        <C>          <C>
Class A (of 5.75%)..........................................      22.10%      11.32%          10.50%
Class B (of 5.00%)..........................................      22.85%      15.57%          16.25%
Class C (of 1.00%)..........................................      26.85%      17.07%          14.75%
 
<CAPTION>
 
RETURN WITHOUT
SALES CHARGE
- ------------------------------------------------------------
<S>                                                           <C>        <C>          <C>
Class A.....................................................      27.85%      17.07%          16.25%
Class B.....................................................      27.85%      17.07%          16.25%
Class C.....................................................      27.85%      17.07%          16.25%
</TABLE>
 
- --------------
 
(1) Commenced Operations on April 2, 1991.
 
    The past performance of the MSIF Equity Growth Portfolio is no guarantee of
the future performance of the Equity Growth Fund.
 
      TOTAL RETURN FOR THE MAS FUNDS VALUE PORTFOLIO'S INSTITUTIONAL CLASS
                  (A SEPARATE MUTUAL FUND FROM THE VALUE FUND)
                     FOR THE PERIOD ENDED NOVEMBER 30, 1996
              (ADJUSTED TO REFLECT STATED SALES LOAD OF THE FUND)
<TABLE>
<CAPTION>
RETURN WITH                                                                                    SINCE
SALES CHARGE                                         1 YEAR      5 YEARS     10 YEARS      INCEPTION(1)
- --------------------------------------------------  ---------  -----------  -----------  -----------------
<S>                                                 <C>        <C>          <C>          <C>
Class A (of 5.75%)................................      21.31%      20.12%       14.90%          17.12%
Class B (of 5.00%)................................      23.71%      21.41%       15.58%          17.70%
Class C (of 1.00%)................................      27.71%      21.55%       15.58%          17.70%
 
<CAPTION>
 
RETURN WITHOUT
SALES CHARGE
- --------------------------------------------------
<S>                                                 <C>        <C>          <C>          <C>
Class A...........................................      28.71%      21.55%       15.58%          17.70%
Class B...........................................      28.71%      21.55%       15.58%          17.70%
Class C...........................................      28.71%      21.55%       15.58%          17.70%
</TABLE>
 
- --------------
 
(1) Commenced Operations on November 5, 1984.
 
    The past performance of the MAS Funds Value Portfolio is no guarantee of the
future performance of the Value Fund.
 
                                       52
<PAGE>
 TOTAL RETURN FOR THE MAS FUNDS MID CAP GROWTH PORTFOLIO'S INSTITUTIONAL CLASS
                 (A SEPARATE MUTUAL FUND FROM THE MID CAP FUND)
                     FOR THE PERIOD ENDED NOVEMBER 30, 1996
              (ADJUSTED TO REFLECT STATED SALES LOAD OF THE FUND)
<TABLE>
<CAPTION>
RETURN WITH
SALES CHARGE                                       1 YEAR      5 YEARS     10 YEARS    SINCE INCEPTION(1)
- ------------------------------------------------  ---------  -----------  -----------  -------------------
<S>                                               <C>        <C>          <C>          <C>
Class A (of 5.75%)..............................      15.71%      15.47%         N/A            18.75%
Class B (of 5.00%)..............................      17.77%      16.69%         N/A            19.81%
Class C (of 1.00%)..............................      21.77%      16.85%         N/A            19.81%
 
<CAPTION>
 
RETURN WITHOUT
SALES CHARGE
- ------------------------------------------------
<S>                                               <C>        <C>          <C>          <C>
Class A.........................................      22.77%      16.84%         N/A            19.80%
Class B.........................................      22.77%      16.84%         N/A            19.80%
Class C.........................................      22.77%      16.84%         N/A            19.80%
</TABLE>
 
- --------------
 
(1) Commenced Operations on March 30, 1990.
 
    The past performance of the MAS Funds Mid Cap Growth Portfolio is no
guarantee of the future performance of the Mid Cap Growth Fund.
 
                          DIVIDENDS AND DISTRIBUTIONS
 
    Shareholders will automatically be credited with all dividends and
distributions in additional shares at net asset value, without payment of any
initial sales charge of the Funds, except that, upon written notice to the
Company or by checking off the appropriate box in the Distribution Option
Section on the New Account Application, a shareholder may elect to receive
dividends and/or distributions in cash. Shares received through reinvestment of
dividends and/or distributions will not be subject to any CDSC upon their
redemption.
 
    Each of the Equity Growth and Mid Cap Growth Funds expects to distribute
substantially all of its net investment income in the form of annual dividends
and each of the Aggressive Equity, American Value, U.S. Real Estate and Value
Funds expects to distribute substantially all of its net investment income in
the form of quarterly dividends. Net realized gains, if any, will be distributed
annually. Confirmations of the purchase of shares of a Fund through the
automatic reinvestment of income dividends and capital gains distributions will
be provided, pursuant to Rule 10b-10(b) under the Securities Exchange Act of
1934, as amended, on the next quarterly client statement following such purchase
of shares. Consequently, confirmations of such purchases will not be provided at
the time of completion of such purchases, as might otherwise be required by Rule
10b-10.
 
    Any undistributed net investment income and undistributed realized gains
increase a Fund's net assets for the purpose of calculating net asset value per
share. Therefore, on the "ex-dividend" or "ex-distribution" date, the net asset
value per share excludes the dividend or distribution (i.e., is reduced by the
per share amount of the dividend or distribution). Dividends and distributions
paid shortly after the purchase of shares by an investor, although in effect a
return of capital, are taxable to shareholders subject to tax.
 
    Because of the higher distribution fee, higher shareholder servicing fee,
and any other expenses that may be attributable to the Class B shares and Class
C shares of each Fund, the net income attributable to and the
 
                                       53
<PAGE>
dividends payable on Class B shares and Class C shares of a Fund will be lower
than the net income attributable to and the dividends payable on Class A shares
of the Fund. As a result, the net asset value per share of the classes of a Fund
will differ at times. Expenses of the Company allocated to a particular class of
shares of a Fund will be borne on a pro rata basis by each outstanding share of
that class.
 
                                     TAXES
 
TAX STATUS OF THE FUNDS
 
    The following summary of certain federal income tax consequences is based on
current tax laws and regulations, which may be changed by legislative, judicial
or administrative action. See also the tax sections in the Statement of
Additional Information.
 
    No attempt has been made to present a detailed explanation of the federal,
state or local income tax treatment of the Funds or their shareholders.
Accordingly, shareholders are urged to consult their tax advisors regarding
specific questions as to federal, state and local income taxes.
 
    Each of the Funds is generally treated as a separate entity for federal
income tax purposes, and thus the provisions of the Internal Revenue Code of
1986, as amended (the "Code") generally will be applied to each Fund separately,
rather than to the Company as a whole. Net long-term and short-term capital
gains, net income and operating expenses therefore will be determined separately
for each Fund.
 
    The Funds intend to qualify for the special tax treatment afforded
"regulated investment companies" ("RICs") under Subchapter M of the Code so that
each will be relieved of federal income tax on that part of its net investment
income and net capital gain (the excess of net long-term capital gain over net
short-term capital loss less any available capital loss carryforward) which is
distributed to its shareholders.
 
TAX STATUS OF DISTRIBUTIONS
 
    Each Fund distributes substantially all of its net investment income
(including, for this purpose, net short-term capital gain), to its shareholders.
Dividends paid by a Fund from its net investment income will be taxable to the
shareholders of the Fund as ordinary income, whether received in cash or in
additional shares, if the shareholder is subject to tax. Dividends paid by a
Fund attributable to dividends received from shares of domestic corporations
will qualify for the dividends-received deduction for corporations.
 
    Distributions of net capital gains are taxable to shareholders subject to
tax as long-term capital gains, regardless of how long the shareholder has held
a Fund's shares. Capital gains distributions are not eligible for the corporate
dividends-received deduction. Each Fund will make annual reports to shareholders
of the federal income tax status of all distributions.
 
    Each Fund intends to make sufficient distributions or deemed distributions
of its ordinary income and net capital gains prior to the end of each calendar
year to avoid liability for federal excise tax.
 
    Dividends and other Distributions declared in October, November and December
by a Fund payable as of a record date in such month and paid at any time during
January of the following year are treated as having been paid by the Fund and
received by the shareholders on December 31 of the year declared.
 
    The sale, exchange or redemption of shares may result in taxable gain or
loss to the selling, exchanging or redeeming shareholder, depending upon whether
the fair market value of the redemption proceeds exceeds or is
 
                                       54
<PAGE>
less than the shareholder's adjusted basis in the redeemed, exchanged or sold
shares. If capital gain distributions have been made with respect to shares that
are sold at a loss after being held for six months or less, then the loss is
treated as a long-term capital loss to the extent of the capital gain
distributions. Shareholders may also be subject to state and local taxes on
distributions from the Funds.
 
    THE TAX DISCUSSION SET FORTH ABOVE IS INCLUDED HEREIN FOR GENERAL
INFORMATION ONLY. PROSPECTIVE INVESTORS AND SHAREHOLDERS SHOULD CONSULT THEIR
OWN TAX ADVISERS WITH RESPECT TO THE TAX CONSEQUENCES TO THEM OF AN INVESTMENT
IN THE FUNDS.
 
                              GENERAL INFORMATION
 
DESCRIPTION OF COMMON STOCK
 
    The Company was organized as a Maryland corporation on August 14, 1992. The
Amended Articles of Incorporation currently permit the Company to issue 27.375
billion shares of common stock, par value $.001 per share. Pursuant to the
Company's By-Laws, the Board of Directors may increase the number of shares the
Company is authorized to issue without the approval of the shareholders of the
Company. The Board of Directors has the power to designate one or more classes
of shares of common stock and to classify and reclassify any unissued shares
with respect to such classes.
 
    The shares of each Fund, when issued, will be fully paid, nonassessable,
fully transferable and redeemable at the option of the holder. The shares have
no preference as to conversion, exchange, dividends, retirement or other
features and have no preemptive rights. The shares of the Funds have
non-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. Under Maryland law, the Company is not required to hold
an annual meeting of its shareholders unless required to do so under the 1940
Act. Any person or organization owning 25% or more of the outstanding shares of
a Fund may be presumed to "control" (as that term is defined in the 1940 Act)
such Fund.
 
    As of July 7, 1997, the Distributor was presumed to "control" the Value Fund
based solely on its ownership of 25% or more of the outstanding voting shares of
such Fund.
 
REPORTS TO SHAREHOLDERS
 
    The Company will send to its shareholders annual and semi-annual reports;
the financial statements appearing in annual reports are audited by independent
accountants.
 
    In addition, the Company or the Transfer Agent, will send to each
shareholder having an account directly with the Company a quarterly statement
showing transactions in the account, the total number of shares owned, and any
dividends or distributions paid. In addition, when a transaction occurs in a
shareholder's account, the Company or the Transfer Agent will send the
shareholder a confirmation statement showing the same information.
 
CUSTODIAN
 
    Domestic securities and cash are held by Chase, which is not an affiliate of
the Adviser or the Distributor. Morgan Stanley Trust Company, Brooklyn, New York
("Morgan Stanley Trust"), acts as the Company's custodian for foreign assets
held outside the United States and employs subcustodians who were approved by
the
 
                                       55
<PAGE>
Directors of the Company in accordance with regulations of the SEC for the
purpose of providing custodial services for such assets. Morgan Stanley Trust
may also hold certain domestic assets for the Company. Morgan Stanley Trust is
an affiliate of the Adviser and the Distributor. For more information on the
custodians, see "General Information -- Custody Arrangements" in the Statement
of Additional Information.
 
DIVIDEND DISBURSING AND TRANSFER AGENT
 
    ACCESS, P.O. Box 418256, Kansas City, Missouri 64141-9256, acts as dividend
disbursing and transfer agent for the Company.
 
INDEPENDENT ACCOUNTANTS
 
    Price Waterhouse LLP, 1177 Avenue of the Americas, New York, NY 10036,
serves as independent accountants for the Company and audits its annual
financial statements.
 
                                       56
<PAGE>
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<PAGE>
                                   APPENDIX A
                     DESCRIPTION OF CORPORATE BOND RATINGS
 
MOODY'S INVESTORS SERVICE, INC. -- CORPORATE BOND RATINGS:
 
    Aaa -- Bonds which are rated Aaa are judged to be the best quality. They
carry the smallest degree of investment risk and are generally referred to as
"gilt-edge." Interest payments are protected by a large or by an exceptionally
stable margin, and principal is secure. While the various protective elements
are likely to change, such changes as can be visualized are most unlikely to
impair the fundamentally strong position of such issues.
 
    Aa -- Bonds which are rated Aa are judged to be of high quality by all
standards. Together with the Aaa group they comprise what are generally known as
high grade bonds. They are rated lower than the best bonds because margins of
protection may not be as large as in Aaa securities or fluctuation of protective
elements may be of greater amplitude or there may be other elements present
which make the long-term risks appear somewhat larger than in Aaa securities.
 
    Moody's applies numerical modifiers 1, 2 and 3 in the Aa and A rating
categories. The modifier 1 indicates that the security ranks at a higher end of
the rating category, modifier 2 indicates a mid-range rating and the modifier 3
indicates that the issue ranks at the lower end of the rating category.
 
    A -- Bonds which are rated A possess many favorable investment attributes
and are to be considered as upper medium grade obligations. Factors giving
security to principal and interest are considered adequate but elements may be
present which suggest a susceptibility to impairment sometime in the future.
 
    Baa -- Bonds which are rated Baa are considered as medium grade obligations,
i.e., they are neither highly protected nor poorly secured. Interest payments
and principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time. Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.
 
    Ba -- Bonds which are rated Ba are judged to have speculative elements;
their future cannot be considered as well assured. Often the protection of
interest and principal payments may be very moderate, and thereby not well
safeguarded during both good and bad times over the future. Uncertainty of
position characterizes bonds in this class.
 
    B -- Bonds which are rated B generally lack characteristics of the desirable
investment. Assurance of interest and principal payments or of maintenance of
other terms of the contract over any long period of time may be small.
 
    Caa -- Bonds which are rated Caa are of poor standing. Such issues may be in
default or there may be present elements of danger with respect to principal or
interest.
 
    Ca -- Bonds which are rated Ca represent obligations which are speculative
in a high degree. Such issues are often in default or have other marked
shortcomings.
 
    C -- Bonds which are rated C are the lowest rated class of bonds, and issues
so rated can be regarded as having extremely poor prospects of ever attaining
any real investment standing.
 
                                      A-1
<PAGE>
STANDARD & POOR'S RATINGS GROUP CORPORATE BOND RATINGS:
 
    AAA -- Bonds rated AAA have the highest rating assigned by Standard & Poor's
to a debt obligation and indicate an extremely strong capacity to pay principal
and interest.
 
    AA -- Bonds rated AA have a very strong capacity to pay interest and repay
principal and differ from the highest rated issues only to a small degree.
 
    A -- Bonds rated A have a strong capacity to pay interest and repay
principal although they are somewhat more susceptible to the adverse effects of
changes in circumstances and economic conditions than bonds in higher rated
categories.
 
    BBB -- Debt rated BBB is regarded as having an adequate capacity to pay
interest and repay principal. Whereas it normally exhibits adequate protection
parameters, adverse economic conditions or changing circumstances are more
likely to lead to a weakened capacity to pay interest and repay principal for
debt in this category than for debt in higher rated categories.
 
    BB, B, CCC, CC -- Debt rated BB, B, CCC and CC is regarded, on balance, as
predominantly speculative with respect to capacity to pay interest and repay
principal in accordance with the terms of the obligation. BB indicates the
lowest degree of speculation and CC the highest degree of speculation. While
such debt will likely have some quality and protective characteristics, these
are outweighed by large uncertainties or major risk exposures to adverse
conditions.
 
    C -- The rating C is reserved for income bonds on which no interest is being
paid.
 
    D -- Debt rated D is in default, and payment of interest and/or repayment of
principal is in arrears.
 
                                      A-2
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
  NO DEALER, SALES REPRESENTATIVE OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO
GIVE ANY INFORMATION OR TO MAKE ANY REPRESENTATIONS, OTHER THAN THOSE CONTAINED
IN THIS PROSPECTUS, IN CONNECTION WITH THE OFFER MADE BY THIS PROSPECTUS AND, IF
GIVEN OR MADE, SUCH OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON
AS HAVING BEEN AUTHORIZED BY THE COMPANY OR THE DISTRIBUTOR. THIS PROSPECTUS
DOES NOT CONSTITUTE AN OFFER BY THE COMPANY OR THE DISTRIBUTOR TO SELL OR A
SOLICITATION OF AN OFFER TO BUY ANY OF THE SECURITIES OFFERED HEREBY IN ANY
JURISDICTION TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR
SOLICITATION IN SUCH JURISDICTION.
 
                            ------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>                                                                   <C>
                                                                      PAGE
                                                                      -----
Fund Expenses.........................................................    2
 
Prospectus Summary....................................................    9
 
Investment Objectives and Policies....................................   13
 
Additional Investment Information.....................................   19
 
Investment Limitations................................................   29
 
Management of the Company.............................................   29
 
Purchase of Shares....................................................   35
 
Shareholder Services..................................................   43
 
Redemption of Shares..................................................   47
 
Valuation of Shares...................................................   49
 
Portfolio Transactions................................................   50
 
Performance Information...............................................   51
 
Dividends and Distributions...........................................   53
 
Taxes.................................................................   54
 
General Information...................................................   55
 
Appendix A............................................................  A-1
</TABLE>
 
                                 MORGAN STANLEY
                             AGGRESSIVE EQUITY FUND
                              AMERICAN VALUE FUND
                               EQUITY GROWTH FUND
                              MID CAP GROWTH FUND
                             U.S. REAL ESTATE FUND
                                   VALUE FUND
 
                               PORTFOLIOS OF THE
 
                                 MORGAN STANLEY
                                   FUND, INC.
 
                                ---------------
                                   PROSPECTUS
                                ---------------
 
                               INVESTMENT ADVISER
 
                                   VAN KAMPEN
                                    AMERICAN
                               CAPITAL INVESTMENT
                                 ADVISORY CORP.
 
                                  DISTRIBUTOR
 
                              VAN KAMPEN AMERICAN
                           CAPITAL DISTRIBUTORS, INC.
 
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
<PAGE>
- --------------------------------------------------------------------------------
                              P R O S P E C T U S
 -----------------------------------------------------------------------------
 
                        MORGAN STANLEY ASIAN GROWTH FUND
                      MORGAN STANLEY EMERGING MARKETS FUND
                       MORGAN STANLEY GLOBAL EQUITY FUND
                  MORGAN STANLEY GLOBAL EQUITY ALLOCATION FUND
                    MORGAN STANLEY INTERNATIONAL MAGNUM FUND
                      MORGAN STANLEY JAPANESE EQUITY FUND
                       MORGAN STANLEY LATIN AMERICAN FUND
 
                               PORTFOLIOS OF THE
                           MORGAN STANLEY FUND, INC.
 
                  P.O. BOX 41826, KANSAS CITY, MISSOURI 64141
                      FOR INFORMATION CALL 1-800-282-4404
 
                               ------------------
 
    Morgan Stanley Fund, Inc. (the "Company") is an open-end management
investment company, or mutual fund, which consists of twenty-two diversified and
non-diversified investment portfolios (each a "Fund" and together, the "Funds").
This prospectus (the "Prospectus") describes the Class A, Class B and Class C
shares of the seven Funds listed above. The Company is designed to make
available to retail investors the expertise of Van Kampen American Capital
Investment Advisory Corp., the adviser (the "Adviser") and administrator (the
"Administrator") and its affiliates, Morgan Stanley Asset Management Inc., a
sub-adviser ("MSAM" or a "Sub-Adviser") and Miller Anderson & Sherrerd, LLP, a
sub-adviser (a "Sub-Adviser") to the Funds. Shares are available through Van
Kampen American Capital Distributors, Inc. ("VKAC Distributors," or the
"Distributor"), and through investment dealers, banks and financial services
firms that provide distribution, administrative or shareholder services
("Participating Dealers").
 
    This Prospectus is designed to set forth concisely the information about the
Funds that a prospective investor should know before investing and it should be
retained for future reference. The Company offers other Funds which are
described in other prospectuses and under "Prospectus Summary" below. The
Company currently offers the following Funds: (i) GLOBAL AND INTERNATIONAL
EQUITY -- Morgan Stanley Asian Growth, Morgan Stanley Emerging Markets, Morgan
Stanley Global Equity, Morgan Stanley Global Equity Allocation, Morgan Stanley
International Magnum and Morgan Stanley Latin American Funds; (ii) U.S. EQUITY
- -- Morgan Stanley Aggressive Equity, Morgan Stanley American Value, Morgan
Stanley U.S. Real Estate and Morgan Stanley Value Funds; (iii) GLOBAL FIXED
INCOME -- Morgan Stanley Emerging Markets Debt, Morgan Stanley Global Fixed
Income, Morgan Stanley High Yield and Morgan Stanley Worldwide High Income
Funds; and (iv) MONEY MARKET -- Morgan Stanley Government Obligations Money
Market and Morgan Stanley Money Market Funds. Additional information about the
Company is contained in a "Statement of Additional Information," dated January
1, 1997, which is incorporated herein by reference. The Statement of Additional
Information and the prospectuses pertaining to the other Funds of the Company
are available upon request and without charge by writing or calling the Company
at the address and telephone number set forth above.
 
    THE COMPANY'S SHARES ARE NOT OBLIGATIONS, DEPOSITS OR ACCOUNTS OF, OR
ENDORSED OR GUARANTEED BY, ANY BANK OR DEPOSITORY INSTITUTION, OR ANY AFFILIATES
OR CORRESPONDENTS THEREOF. THE COMPANY'S SHARES ARE NOT FEDERALLY INSURED BY THE
FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER
AGENCY. SHARES OF THE COMPANY INVOLVE INVESTMENT RISKS, INCLUDING THE POSSIBLE
LOSS OF PRINCIPAL.
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION, NOR HAS THE SECURITIES AND EXCHANGE COMMISSION PASSED UPON
    THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE
                        CONTRARY IS A CRIMINAL OFFENSE.
<PAGE>
 THE DATE OF THIS PROSPECTUS IS JANUARY 2, 1997, AS SUPPLEMENTED THROUGH AUGUST
                                   27, 1997.
<PAGE>
                                 FUND EXPENSES
 
    The following table illustrates all expenses and fees that a shareholder of
a Fund may incur:
<TABLE>
<CAPTION>
                                                                                        GLOBAL
                                                 ASIAN       EMERGING      GLOBAL       EQUITY     INTERNATIONAL  JAPANESE
                                                 GROWTH      MARKETS       EQUITY     ALLOCATION     MAGNUM       EQUITY
SHAREHOLDER TRANSACTION EXPENSES                  FUND         FUND         FUND         FUND         FUND         FUND
- ---------------------------------------------  ----------   ----------   ----------   ----------   ----------   ----------
<S>                                            <C>          <C>          <C>          <C>          <C>          <C>
Maximum Sales Load Imposed on Purchases (as a
 percentage of offering price)
    Class A..................................    5.75%(1)     5.75%(1)     5.75%(1)     5.75%(1)     5.75%(1)     5.75%(1)
    Class B..................................     None         None         None         None         None         None
    Class C..................................     None         None         None         None         None         None
Maximum Deferred Sales Load (as a Percentage
 of the lesser of initial purchase price or
 current market value)
    Class A
      For Purchases up to $999,999...........     None         None         None         None         None         None
      For Purchases of $1,000,000 or more....    1.00%(2)     1.00%(2)     1.00%(2)     1.00%(2)     1.00%(2)     1.00%(2)
    Class B..................................    5.00%(3)     5.00%(3)     5.00%(3)     5.00%(3)     5.00%(3)     5.00%(3)
    Class C..................................    1.00%(4)     1.00%(4)     1.00%(4)     1.00%(4)     1.00%(4)     1.00%(4)
Maximum Sales Load Imposed on Reinvested
 Dividends
    Class A..................................     None         None         None         None         None         None
    Class B..................................     None         None         None         None         None         None
    Class C..................................     None         None         None         None         None         None
Redemption Fees
    Class A..................................     None         None         None         None         None         None
    Class B..................................     None         None         None         None         None         None
    Class C..................................     None         None         None         None         None         None
Exchange Fees
    Class A..................................     None         None         None         None         None         None
    Class B..................................     None         None         None         None         None         None
    Class C..................................     None         None         None         None         None         None
 
<CAPTION>
 
                                                 LATIN
                                                AMERICAN
SHAREHOLDER TRANSACTION EXPENSES                  FUND
- ---------------------------------------------  ----------
<S>                                            <C>
Maximum Sales Load Imposed on Purchases (as a
 percentage of offering price)
    Class A..................................    5.75%(1)
    Class B..................................     None
    Class C..................................     None
Maximum Deferred Sales Load (as a Percentage
 of the lesser of initial purchase price or
 current market value)
    Class A
      For Purchases up to $999,999...........     None
      For Purchases of $1,000,000 or more....    1.00%(2)
    Class B..................................    5.00%(3)
    Class C..................................    1.00%(4)
Maximum Sales Load Imposed on Reinvested
 Dividends
    Class A..................................     None
    Class B..................................     None
    Class C..................................     None
Redemption Fees
    Class A..................................     None
    Class B..................................     None
    Class C..................................     None
Exchange Fees
    Class A..................................     None
    Class B..................................     None
    Class C..................................     None
</TABLE>
 
- ------------------
 
(1) Percentage shown is the maximum sales load. Certain large purchases may be
    subject to a reduced sales load.
 
(2) Purchases of Class A shares of the Funds listed above which, when combined
    with the net asset value of the purchaser's existing investments in Class A
    shares of the Funds, aggregate $1 million or more are not subject to a sales
    load (an "initial sales charge"). A contingent deferred sales charge
    ("CDSC") of 1.00% will be imposed, however, on shares from any such purchase
    that are redeemed within one year following such purchase. Any such CDSC
    will be paid to the Distributor. Certain other purchases are not subject to
    an initial sales charge. See "Purchase of Shares."
 
(3) Percentage shown is the maximum CDSC. Purchases of Class B shares of the
    Funds listed above are subject to a maximum CDSC of 5.00% which decreases in
    steps to 0% after five years. See "Purchase of Class B Shares." Any such
    CDSC will be paid to the Distributor.
 
(4) Purchases of Class C shares of the Funds listed above are subject to a CDSC
    of 1.00% for redemptions made within one year of purchase. Any such CDSC
    will be paid to the Distributor.
 
                                       2
<PAGE>
<TABLE>
<CAPTION>
                                                                                        GLOBAL
                                                 ASIAN       EMERGING      GLOBAL       EQUITY     INTERNATIONAL  JAPANESE
ANNUAL FUND OPERATING EXPENSES                   GROWTH      MARKETS       EQUITY     ALLOCATION     MAGNUM       EQUITY
(AS A PERCENTAGE OF AVERAGE NET ASSETS)           FUND         FUND         FUND         FUND         FUND         FUND
                                               ----------   ----------   ----------   ----------   ----------   ----------
<S>                                            <C>          <C>          <C>          <C>          <C>          <C>
Investment Advisory Fee (after expense
 reimbursement and/or fee waiver) (5)
    Class A..................................    1.00%        0.84%        1.00%        0.64%        0.80%        0.80%
    Class B..................................    1.00%        0.84%        1.00%        0.64%        0.80%        0.80%
    Class C..................................    1.00%        0.84%        1.00%        0.64%        0.80%        0.80%
12b-1/Service Fees
    Class A (6)..............................    0.25%        0.25%        0.25%        0.25%        0.25%        0.25%
    Class B (6)..............................    1.00%        1.00%        1.00%        1.00%        1.00%        1.00%
    Class C (6)..............................    1.00%        1.00%        1.00%        1.00%        1.00%        1.00%
Other Expenses (after expense reimbursement
 and/or fee waiver) (5)
    Class A..................................    0.63%        1.06%        0.55%        0.81%        0.60%        0.65%
    Class B..................................    0.63%        1.06%        0.55%        0.81%        0.60%        0.65%
    Class C..................................    0.63%        1.06%        0.55%        0.81%        0.60%        0.65%
Total Operating Expenses (after expense
 reimbursement and/or fee waiver) (5)
    Class A..................................    1.88%        2.15%        1.80%        1.70%        1.65%        1.70%
    Class B..................................    2.63%        2.90%        2.55%        2.45%        2.40%        2.45%
    Class C..................................    2.63%        2.90%        2.55%        2.45%        2.40%        2.45%
 
<CAPTION>
 
                                                 LATIN
ANNUAL FUND OPERATING EXPENSES                  AMERICAN
(AS A PERCENTAGE OF AVERAGE NET ASSETS)           FUND
                                               ----------
<S>                                            <C>
Investment Advisory Fee (after expense
 reimbursement and/or fee waiver) (5)
    Class A..................................    0.07%
    Class B..................................    0.07%
    Class C..................................    0.07%
12b-1/Service Fees
    Class A (6)..............................    0.25%
    Class B (6)..............................    1.00%
    Class C (6)..............................    1.00%
Other Expenses (after expense reimbursement
 and/or fee waiver) (5)
    Class A..................................    1.78%
    Class B..................................    1.78%
    Class C..................................    1.78%
Total Operating Expenses (after expense
 reimbursement and/or fee waiver) (5)
    Class A..................................    2.10%
    Class B..................................    2.85%
    Class C..................................    2.85%
</TABLE>
 
- ------------------
 
(5) The Adviser has agreed to waive its advisory fees and/or to reimburse
    expenses of the Funds, if necessary, if such fees would cause the total
    annual operating expenses of the Funds, as a percentage of average daily net
    assets, to exceed the percentages set forth in the table above. The
    following sets forth, for each Fund investment advisory fees and expected
    total operating expenses absent fee waivers and/or expense reimbursements.
 
<TABLE>
<CAPTION>
                                        INVESTMENT                      TOTAL
                                       ADVISORY FEES             OPERATING EXPENSES
                                     -----------------  -------------------------------------
                                       (ALL CLASSES)      CLASS A      CLASS B      CLASS C
                                     -----------------  -----------  -----------  -----------
<S>                                  <C>                <C>          <C>          <C>
Asian Growth Fund..................           1.00%           1.88%        2.61%        2.63%
Emerging Markets Fund..............           1.25%           2.56%        3.31%        3.34%
Global Equity Fund.................           1.00%           1.80%        2.55%        2.55%
Global Equity Allocation Fund......           1.00%           2.06%        2.81%        2.81%
International Magnum Fund..........           1.00%           1.90%        2.65%        2.65%
Japanese Equity Fund...............           1.00%           1.90%        2.65%        2.65%
Latin American Fund................           1.25%           3.28%        3.89%        4.06%
</TABLE>
 
   The Adviser reserves the right to terminate any of its fee waivers and/or
   reimbursements at any time in its sole discretion. For further information on
   Company expenses, see "Management of the Company."
 
(6) Of the 12b-1/Service fees for the Class A shares, 0.25% represents a
    shareholder services fee, and for the Class B shares and the Class C shares,
    0.75% represents a distribution fee and 0.25% represents a shareholder
    services fee.
 
    The purpose of the above table is to assist the investor in understanding
the various expenses that an investor in a Fund will bear directly or
indirectly. The expenses and fees for the Asian Growth, Emerging Markets, Global
Equity Allocation and Latin American Funds are based on actual figures for the
period ended June 30, 1996. The expenses and fees for the Global Equity,
International Magnum and Japanese Equity Funds are based on estimates. For
purposes of calculating the estimated expenses and fees set forth above, the
table assumes that the Funds' average daily net assets will be $50,000,000. Due
to the continuous nature of Rule 12b-1 fees, long-term shareholders may pay more
than the equivalent of the maximum front-end sales charges otherwise permitted
by the Conduct Rules of the National Association of Securities Dealers, Inc.
("NASD").
 
                                       3
<PAGE>
    The following examples illustrate the expenses that you would pay on a
$1,000 investment, assuming a 5% annual rate of return and redemption at the end
of each time period as indicated, in (i) Class A shares of each listed Fund,
including the maximum 5.75% sales charge, (ii) Class B shares of each such Fund,
which have a CDSC, but no initial sales charge and (iii) Class C shares of each
such Fund, which have a CDSC, but no initial sales charge.
<TABLE>
<CAPTION>
                                                                                        GLOBAL
                                                 ASIAN       EMERGING      GLOBAL       EQUITY     INTERNATIONAL  JAPANESE
                                                 GROWTH      MARKETS       EQUITY     ALLOCATION     MAGNUM       EQUITY
SHAREHOLDER TRANSACTION EXPENSES                  FUND         FUND         FUND         FUND         FUND         FUND
- ---------------------------------------------  ----------   ----------   ----------   ----------   ----------   ----------
<S>                                            <C>          <C>          <C>          <C>          <C>          <C>
Class A shares
 (If it is assumed there are no redemptions,
 the expenses are the same)
    1 Year...................................  $   75(1)    $   78(1)    $   75(1)    $   74(1)    $   73(1)    $   74(1)
    3 Years..................................     113          121          111          108          107          108
    5 Years..................................     153          166         *             144         *            *
    10 Years.................................     265          291         *             247         *            *
Class B shares
 (Assuming complete redemption at end of
 period)
    1 Year...................................      77           79           76           75           74           75
    3 Years..................................     112          120          109          106          105          106
    5 Years..................................     155          168         *             146         *            *
    10 Years (2).............................     279          306         *             261         *            *
 (Assuming no redemption)
    1 Year...................................      27           29           26           25           24           25
    3 Years..................................      82           90           79           76           75           76
    5 Years..................................     140          153         *             131         *            *
    10 Years (2).............................     279          306         *             261         *            *
Class C shares
 (Assuming complete redemption immediately
 prior to the end of period)
    1 Year...................................      37           39           36           35           34           35
    3 Years..................................      82           90           78           76           75           76
    5 Years..................................     140          153         *             131         *            *
    10 Years.................................     296          322         *             279         *            *
Class C shares
 (Assuming no redemption)
    1 Year...................................      27           29           26           25           24           25
    3 Years..................................      82           90           79           76           75           76
    5 Years..................................     140          153         *             131         *            *
    10 Years.................................     296          322         *             279         *            *
 
<CAPTION>
 
                                                 LATIN
                                                AMERICAN
SHAREHOLDER TRANSACTION EXPENSES                  FUND
- ---------------------------------------------  ----------
<S>                                            <C>
Class A shares
 (If it is assumed there are no redemptions,
 the expenses are the same)
    1 Year...................................  $   78(1)
    3 Years..................................     120
    5 Years..................................     164
    10 Years.................................     287
Class B shares
 (Assuming complete redemption at end of
 period)
    1 Year...................................      79
    3 Years..................................     118
    5 Years..................................     165
    10 Years (2).............................     301
 (Assuming no redemption)
    1 Year...................................      29
    3 Years..................................      88
    5 Years..................................     150
    10 Years (2).............................     301
Class C shares
 (Assuming complete redemption immediately
 prior to the end of period)
    1 Year...................................      39
    3 Years..................................      88
    5 Years..................................     150
    10 Years.................................     318
Class C shares
 (Assuming no redemption)
    1 Year...................................      29
    3 Years..................................      88
    5 Years..................................     150
    10 Years.................................     318
</TABLE>
 
- ------------------
 
 * Because the Global Equity, International Magnum and Japanese Equity Funds
   were either not operational or had recently become operational as of the date
   of this Prospectus, the Funds have not projected expenses beyond the
   three-year period shown.
 
(1) Certain large purchases may be subject to a reduced sales load. Purchases of
    Class A shares of the Funds listed above which, when combined with the net
    asset value of the purchaser's existing investments in Class A shares of
    these Funds, aggregate $1 million or more are not subject to an initial
    sales charge. A CDSC of 1.00% will be imposed, however, on shares from any
    such purchase that are redeemed within one year following such purchase.
 
(2) Class B shares automatically convert to Class A shares after eight years.
 
    THE FOREGOING EXAMPLES SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR
FUTURE EXPENSES OR PERFORMANCE. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN
THOSE SHOWN. The Adviser in its discretion may terminate voluntary fee waivers
and/or reimbursements at any time. Absent the waiver of fees or reimbursement of
expenses, the amounts in the examples above would be greater.
 
                                       4
<PAGE>
                              FINANCIAL HIGHLIGHTS
 
    The following tables provide financial highlights for the Class A, Class B
and Class C shares of the Asian Growth, Emerging Markets, Global Equity
Allocation and Latin American Funds for each of the respective periods
presented. The audited financial highlights are part of the Company's financial
statements, which appear in the Company's June 30, 1996 Annual Report to
Shareholders. The financial highlights for the Class A, Class B and Class C
Shares of the International Magnum Fund are unaudited. The financial statements
are included in the Company's Statement of Additional Information. The foregoing
Funds' financial highlights for the periods presented have been audited by Price
Waterhouse LLP, whose report thereon (which was unqualified) is also included in
the Statement of Additional Information. Additional performance information
about the Company is contained in the Company's Annual Report. The Annual Report
and the financial statements contained therein, along with the Statement of
Additional Information, are available at no cost from the Company at the address
and telephone number noted on the cover page of this Prospectus. The following
information should be read in conjunction with the financial statements and
notes thereto. Financial highlights are not presented for the Global Equity and
Japanese Equity Funds because they had not commenced operations as of June 30,
1996.
 
                                       5
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                               ASIAN GROWTH FUND
<TABLE>
<CAPTION>
                                                               CLASS A                                       CLASS B+
                                 --------------------------------------------------------------------    ----------------
SELECTED PER SHARE DATA AND        JUNE 23, 1993*        YEAR ENDED       YEAR ENDED       YEAR ENDED      AUGUST 1, 1995
 RATIOS                          TO JUNE 30, 1993     JUNE 30, 1994    JUNE 30, 1995    JUNE 30, 1996    TO JUNE 30, 1996
<S>                              <C>                  <C>              <C>              <C>              <C>
- -------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF
 PERIOD.......................         $    12.00         $   12.00       $    15.50        $   16.42          $    16.51
                                          -------     -------------    -------------    -------------    ----------------
INCOME FROM INVESTMENT
 OPERATIONS
  Net Investment Loss.........                 --             (0.03)              --            (0.04)              (0.03)
  Net Realized and Unrealized
    Gain (Loss)...............                 --              3.53             1.43             0.77                0.33
                                          -------     -------------    -------------    -------------    ----------------
  Total From Investment
    Operations................                 --              3.50             1.43             0.73                0.30
                                          -------     -------------    -------------    -------------    ----------------
DISTRIBUTIONS
  Net Realized Gain...........                 --                --            (0.49)              --                  --
  In Excess of Net Realized
    Gain......................                 --                --            (0.02)              --                  --
                                          -------     -------------    -------------    -------------    ----------------
  Total Distributions.........                 --                --            (0.51)              --                  --
                                          -------     -------------    -------------    -------------    ----------------
NET ASSET VALUE, END OF
 PERIOD.......................         $    12.00         $   15.50       $    16.42        $   17.15          $    16.81
                                          -------     -------------    -------------    -------------    ----------------
                                          -------     -------------    -------------    -------------    ----------------
TOTAL RETURN (1)..............               0.00%            29.17%            9.50%            4.45%               1.82%
                                          -------     -------------    -------------    -------------    ----------------
                                          -------     -------------    -------------    -------------    ----------------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period
 (000s).......................         $   11,770         $ 138,212       $  178,667        $ 248,009          $   52,853
Ratio of Expenses to Average
 Net Assets (2)...............               1.90%**           1.90%            1.90%            1.88%               2.61%**
Ratio of Net Investment Income
 (Loss) to Average Net Assets
 (2)..........................              (0.81)%**         (0.24)%           0.04%           (0.16)%             (0.52)%**
Portfolio Turnover Rate.......                  0%               34%              34%              38%                 38%
- ------------------------------   ----------------------------------------------------------------------------------------
Effect of Voluntary Expense
 Limitation During the Period
  Per Share Benefit to Net
    Investment Loss...........         $     0.01         $    0.03               --               --                  --
Ratios Before Expense
 Limitation:
  Expenses to Average Net
    Assets....................              11.83%**           2.17%            1.90%            1.88%               2.61%**
  Net Investment Income (Loss)
    to Average Net Assets.....             (10.74)%**         (0.51)%           0.04%           (0.16)%             (0.52)%**
- ------------------------------   ----------------------------------------------------------------------------------------
 
<CAPTION>
                                                                     CLASS C
                                 -------------------------------------------------------------------------------
SELECTED PER SHARE DATA AND        JUNE 23, 1993*           YEAR ENDED           YEAR ENDED           YEAR ENDED
 RATIOS                          TO JUNE 30, 1993        JUNE 30, 1994        JUNE 30, 1995        JUNE 30, 1996
<S>                              <C>                    <C>                  <C>                  <C>
- ------------------------------   -------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF
 PERIOD.......................         $    12.00            $   12.00            $   15.40            $   16.19
                                           ------       --------------       --------------       --------------
INCOME FROM INVESTMENT
 OPERATIONS
  Net Investment Loss.........                 --                (0.10)               (0.12)               (0.13)
  Net Realized and Unrealized
    Gain (Loss)...............                 --                 3.50                 1.42                 0.72
                                           ------       --------------       --------------       --------------
  Total From Investment
    Operations................                 --                 3.40                 1.30                 0.59
                                           ------       --------------       --------------       --------------
DISTRIBUTIONS
  Net Realized Gain...........                 --                   --                (0.49)                  --
  In Excess of Net Realized
    Gain......................                 --                   --                (0.02)                  --
                                           ------       --------------       --------------       --------------
  Total Distributions.........                 --                   --                (0.51)                  --
                                           ------       --------------       --------------       --------------
NET ASSET VALUE, END OF
 PERIOD.......................         $    12.00            $   15.40            $   16.19            $   16.78
                                           ------       --------------       --------------       --------------
                                           ------       --------------       --------------       --------------
TOTAL RETURN (1)..............               0.00%               28.33%                8.71%                3.64%
                                           ------       --------------       --------------       --------------
                                           ------       --------------       --------------       --------------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period
 (000s).......................         $    8,491            $ 116,889            $ 139,497            $ 168,070
Ratio of Expenses to Average
 Net Assets (2)...............               2.65%**              2.65%                2.63%                2.63%
Ratio of Net Investment Income
 (Loss) to Average Net Assets
 (2)..........................              (1.56)%**            (0.99)%              (0.77)%              (0.94)%
Portfolio Turnover Rate.......                  0%                  34%                  34%                  38%
- ------------------------------   ----------------------------------------------------------------------------------------
Effect of Voluntary Expense
 Limitation During the Period
  Per Share Benefit to Net
    Investment Loss...........         $     0.02            $    0.03                   --                   --
Ratios Before Expense
 Limitation:
  Expenses to Average Net
    Assets....................              12.64%**              2.92%                2.65%                2.63%
  Net Investment Income (Loss)
    to Average Net Assets.....             (11.55)%**            (1.26)%              (0.77)%              (0.94)%
- ------------------------------   ----------------------------------------------------------------------------------------
</TABLE>
 
 * Commencement of operations.
 ** Annualized.
 + The Asian Growth Fund began offering the current Class B shares on August 1,
   1995.
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total returns for periods of less than one year are not annualized.
(2) Under the terms of an investment advisory agreement, the Adviser is entitled
    to receive an investment advisory fee calculated at an annual rate of 1.00%
    of the average daily net assets of the Asian Growth Fund. The Adviser has
    agreed to waive a portion of this fee and/or reimburse expenses of the Asian
    Growth Fund to the extent that the total operating expenses of the Fund
    exceed 1.88% of the average daily net assets relating to the Class A shares
    and 2.63% of the average daily net assets relating to the Class B and Class
    C shares. For the fiscal periods ended June 30, 1994, June 30, 1995 and June
    30, 1996, the Fund's prior investment adviser, MSAM, waived advisory fees
    and/or reimbursed expenses totaling approximately $464,000, $0 and $0,
    respectively, for the Asian Growth Fund.
 
                                       6
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                             EMERGING MARKETS FUND
 
<TABLE>
<CAPTION>
                                               CLASS A                     CLASS B+                       CLASS C
                                  ---------------------------------     ---------------      ----------------------------------
                                   JULY 6, 1994*                         AUGUST 1, 1995       JULY 6, 1994*
SELECTED PER SHARE DATA AND          TO JUNE 30,         YEAR ENDED         TO JUNE 30,         TO JUNE 30,          YEAR ENDED
 RATIOS                                     1995      JUNE 30, 1996                1996                1995       JUNE 30, 1996
<S>                               <C>                <C>                <C>                  <C>                 <C>
- -------------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF
 PERIOD.......................    $     12.00        $       10.61      $     10.91          $    12.00          $     10.53
                                      -------        --------------         -------             -------              -------
INCOME FROM INVESTMENT
 OPERATIONS
  Net Investment Income
    (Loss)....................           0.05                 0.05             0.01                  --                (0.01)
  Net Realized and Unrealized
    Loss......................          (1.44)                1.44             1.02               (1.47)                1.41
                                      -------        --------------         -------             -------              -------
  Total From Investment
    Operations................          (1.39)                1.49             1.03               (1.47)                1.40
                                      -------        --------------         -------             -------              -------
DISTRIBUTIONS
  Net Investment Income.......             --                (0.04)              --                  --                   --
  In Excess of Net Realized
    Gain......................             --                   --#              --#                 --                   --#
                                      -------        --------------         -------             -------              -------
  Total Distributions.........             --                (0.04)              --                  --                   --
                                      -------        --------------         -------             -------              -------
NET ASSET VALUE, END OF
 PERIOD.......................    $     10.61        $       12.06      $     11.94          $    10.53          $     11.93
                                      -------        --------------         -------             -------              -------
                                      -------        --------------         -------             -------              -------
TOTAL RETURN (1)..............         (11.58)%              14.16%            9.45%             (12.25)%              13.30%
                                      -------        --------------         -------             -------              -------
                                      -------        --------------         -------             -------              -------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period
 (000s).......................    $    26,091        $     114,850      $    10,416          $   22,245          $    43,601
Ratio of Expenses to Average
 Net Assets (2)...............           2.33%**              2.16%            2.91%**             3.08%**              2.91%**
Ratio of Net Investment Income
 (Loss) to Average Net Assets
 (2)..........................           0.81%**              0.93%            0.30%**             0.06%**             (0.11)%
Portfolio Turnover Rate.......             32%                  42%              42%                 32%                  42%
- -------------------------------------------------------------------------------------------------------------------------------
Effect of Voluntary Expense
 Limitation During the Period
  Per Share Benefit to Net
    Investment Income
    (Loss)....................    $      0.04        $        0.02      $      0.02          $     0.04          $      0.03
Ratios Before Expense
 Limitation:
  Expenses to Average Net
    Assets....................           3.10%**              2.56%            3.31%**             3.90%**              3.34%
  Net Investment Income (Loss)
    to Average Net Assets.....           0.04%**              0.53%           (0.10)%**           (0.76)%**            (0.54)%
Ratio of Expenses to Average
 Net Assets Excluding Country
 Tax Expense..................           2.15%**              2.15%            2.90%**             2.90%**              2.90%
- -------------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
 # Amount less than $0.01 per share.
 * Commencement of operations.
 ** Annualized.
 + The Emerging Markets Fund began offering the current Class B shares on August
   1, 1995.
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total returns for periods of less than one year are not annualized.
(2) Under the terms of an investment advisory agreement, the Adviser is entitled
    to receive an investment advisory fee calculated at an annual rate of 1.25%
    of the average daily net assets of the Emerging Markets Fund. The Adviser
    has agreed to waive a portion of this fee and/or reimburse expenses of the
    Emerging Markets Fund to the extent that the total operating expenses of the
    Fund exceed 2.15% of the average daily net assets relating to the Class A
    shares and 2.90% of the average daily net assets relating to the Class B and
    Class C shares. For the fiscal periods ended June 30, 1995 and June 30,
    1996, the Fund's prior investment adviser, MSAM, waived advisory fees and/or
    reimbursed expenses totaling approximately $197,000 and $355,000,
    respectively for the Emerging Markets Fund.
 
                                       7
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                         GLOBAL EQUITY ALLOCATION FUND
<TABLE>
<CAPTION>
                                                                   CLASS A                                        CLASS B+
                                  -------------------------------------------------------------------------   ----------------
SELECTED PER SHARE DATA AND       JANUARY 4, 1993*    YEAR ENDED JUNE    YEAR ENDED JUNE    YEAR ENDED JUNE     AUGUST 1, 1995
 RATIOS                           TO JUNE 30, 1993           30, 1994           30, 1995           30, 1996   TO JUNE 30, 1996
<S>                               <C>                <C>                <C>                <C>                <C>
- ------------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF
 PERIOD........................   $          10.00   $          11.09   $          11.99   $          12.60   $          13.01
                                           -------            -------            -------            -------            -------
INCOME FROM INVESTMENT
 OPERATIONS
  Net Investment Income
    (Loss).....................               0.04               0.10               0.12               0.19               0.30
  Net Realized and Unrealized
    Gain.......................               1.05               0.90               0.67               2.82               1.98
                                           -------            -------            -------            -------            -------
  Total From Investment
    Operations.................               1.09               1.00               0.79               3.01               2.28
                                           -------            -------            -------            -------            -------
DISTRIBUTIONS
  Net Investment Income........                 --              (0.03)                --              (0.39)             (0.35)
  In Excess of Net Investment
    Income.....................                 --                 --              (0.05)                --                 --
  Net Realized Gain............                 --              (0.07)             (0.13)             (0.47)             (0.48)
                                           -------            -------            -------            -------            -------
  Total Distributions..........                 --              (0.10)             (0.18)             (0.86)             (0.83)
                                           -------            -------            -------            -------            -------
NET ASSET VALUE, END OF
 PERIOD........................   $          11.09   $          11.99   $          12.60   $          14.75   $          14.46
                                           -------            -------            -------            -------            -------
                                           -------            -------            -------            -------            -------
TOTAL RETURN (1)...............              10.90%              9.02%              6.69%             24.62%             18.08%
                                           -------            -------            -------            -------            -------
                                           -------            -------            -------            -------            -------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period
 (000s)........................   $         10,434   $         33,425   $         42,586   $         63,706   $         14,786
Ratio of Expenses to Average
 Net Assets (2)................               1.70%**             1.70%             1.70%              1.70%              2.45%**
Ratio of Net Investment Income
 (Loss) to Average Net Assets
 (2)...........................               1.04%**             0.98%             1.01%              0.71%              0.45%**
Portfolio Turnover Rate........                 14%                30%                39%                44%                44%
- ------------------------------------------------------------------------------------------------------------------------------
Effect of Voluntary Expense Limitation During the
 Period
  Per Share Benefit to Net
   Investment Income (Loss)....   $           0.08   $           0.09   $           0.04   $           0.10   $           0.22
Ratios Before Expense
 Limitation:
  Expenses to Average Net
    Assets.....................               3.65%**             2.58%             2.03%              2.06%              2.81%**
  Net Investment Income (Loss)
    to Average Net Assets......              (0.91)%**             0.10%             0.68%             0.35%              0.09%**
- ------------------------------------------------------------------------------------------------------------------------------
 
<CAPTION>
                                                                  CLASS C
                                 -------------------------------------------------------------------------
SELECTED PER SHARE DATA AND      JANUARY 4, 1993*    YEAR ENDED JUNE    YEAR ENDED JUNE    YEAR ENDED JUNE
 RATIOS                          TO JUNE 30, 1993           30, 1994           30, 1995           30, 1996
<S>                              <C>                <C>                <C>                <C>
- -------------------------------
NET ASSET VALUE, BEGINNING OF
 PERIOD........................  $          10.00   $          11.05   $          11.90   $          12.43
                                           ------            -------            -------            -------
INCOME FROM INVESTMENT
 OPERATIONS
  Net Investment Income
    (Loss).....................              0.01               0.06               0.04               0.12
  Net Realized and Unrealized
    Gain.......................              1.04               0.86               0.65               2.75
                                           ------            -------            -------            -------
  Total From Investment
    Operations.................              1.05               0.92               0.69               2.87
                                           ------            -------            -------            -------
DISTRIBUTIONS
  Net Investment Income........                --                 --                 --              (0.33)
  In Excess of Net Investment
    Income.....................                --                 --              (0.03)                --
  Net Realized Gain............                --              (0.07)             (0.13)             (0.48)
                                           ------            -------            -------            -------
  Total Distributions..........                --              (0.07)             (0.16)             (0.81)
                                           ------            -------            -------            -------
NET ASSET VALUE, END OF
 PERIOD........................  $          11.05   $          11.90   $          12.43   $          14.49
                                           ------            -------            -------            -------
                                           ------            -------            -------            -------
TOTAL RETURN (1)...............             10.50%              8.34%              5.84%             23.65%
                                           ------            -------            -------            -------
                                           ------            -------            -------            -------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period
 (000s)........................  $          6,995   $         29,892   $         40,460   $         63,025
Ratio of Expenses to Average
 Net Assets (2)................              2.45%**             2.45%             2.45%              2.45%
Ratio of Net Investment Income
 (Loss) to Average Net Assets
 (2)...........................              0.29%**             0.23%             0.25%             (0.04)%
Portfolio Turnover Rate........                14%                30%                39%                44%
- ------------------------------------------------------------------------------------------------------------------------------
 
Effect of Voluntary Expense Lim
 Period
  Per Share Benefit to Net
   Investment Income (Loss)....  $           0.07   $           0.12   $           0.05   $           1.16
Ratios Before Expense
 Limitation:
  Expenses to Average Net
    Assets.....................              4.40%**             3.34%             2.78%              2.81%
  Net Investment Income (Loss)
    to Average Net Assets......             (1.66)%**            (0.66)%            (0.08)%            (0.40)%
- ------------------------------------------------------------------------------------------------------------------------------
 
</TABLE>
 
 * Commencement of operations.
 ** Annualized.
 + The Global Equity Allocation Fund began offering the current Class B shares
   on August 1, 1995.
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total returns for periods of less than one year are not annualized.
(2) Under the terms of an investment advisory agreement, the Adviser is entitled
    to receive an investment advisory fee calculated at an annual rate of 1.00%
    of the average daily net assets of the Global Equity Allocation Fund. The
    Adviser has agreed to waive a portion of this fee and/or reimburse expenses
    of the Global Equity Allocation Fund to the extent that the total operating
    expenses of the Fund exceed 1.70% of the average daily net assets relating
    to the Class A shares and 2.45% of the average daily net assets relating to
    the Class B and Class C shares. For the fiscal periods ended June 30, 1994,
    June 30, 1995 and June 30, 1996, the Adviser waived advisory fees and/or
    reimbursed expenses totaling approximately $353,000, $247,000 and $371,000,
    respectively, for the Global Equity Allocation Fund.
 
                                       8
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                           INTERNATIONAL MAGNUM FUND
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                CLASS A                               CLASS C
                                             -------------         CLASS B          ------------
                                                   FOR THE      --------------           FOR THE
                                                    PERIOD      FOR THE PERIOD            PERIOD
                                              JULY 1, 1996        JULY 1, 1996      JULY 1, 1996
                                                       TO*                 TO*               TO*
                                              NOVEMBER 30,        NOVEMBER 30,      NOVEMBER 30,
SELECTED PER SHARE DATA AND RATIOS                    1996                1996              1996
<S>                                          <C>                <C>                 <C>
- ------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF PERIOD....     $       12.00      $        12.00      $      12.00
                                             -------------             -------      ------------
INCOME FROM INVESTMENT OPERATIONS
  Net Investment Income (Loss)..........              0.01               (0.02)            (0.02)
  Net Realized and Unrealized Gain on
    Investments.........................              0.25                0.25              0.24
                                             -------------             -------      ------------
  Total From Investment Operations......              0.26                0.23              0.22
                                             -------------             -------      ------------
NET ASSET VALUE, END OF PERIOD..........     $       12.26      $        12.23      $      12.22
                                             -------------             -------      ------------
                                             -------------             -------      ------------
TOTAL RETURN (1)........................              2.17%               1.92%             1.83%
                                             -------------             -------      ------------
                                             -------------             -------      ------------
RATIOS AND SUPPLEMENTAL DATA............
Net Assets, End of Period (000's).......     $       4,673      $        4,906      $      5,458
Ratio of Expenses to Average Net
 Assets.................................              1.64%**             2.39%**           2.40%
Ratio of Net Investment Income (Loss) to
 Average Net Assets.....................              0.21%**            (0.54)%**         (0.55)%
Portfolio Turnover Rate.................               % 6                %  6                %6
- ------------------------------------------------------------------------------------------------
Average Commission Rate.................     $      0.0412      $       0.0412      $     0.0412
- ------------------------------------------------------------------------------------------------
Effect of Voluntary Expense Limitation
 During the Period
  Per Share Benefit to Net Investment
    Loss................................     $        0.06      $         0.05      $       0.05
Ratios Before Expense Limitation:
  Expenses to Average Net Assets........              2.98%**             3.73%**           3.73%
  Net Investment Loss to Average Net
    Assets..............................             (1.13)%**           (1.88)%**         (1.88)%
- ------------------------------------------------------------------------------------------------
</TABLE>
 
 * Commencement of Operations.
 ** Annualized.
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total return for periods of less than one year are not annualized.
 
                                       9
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                              LATIN AMERICAN FUND
<TABLE>
<CAPTION>
                                               CLASS A                     CLASS B+                    CLASS C
                                  ----------------------------------   ----------------   ----------------------------------
SELECTED PER SHARE DATA AND          JULY 6, 1994*        YEAR ENDED     AUGUST 1, 1995      JULY 6, 1994*        YEAR ENDED
 RATIOS                           TO JUNE 30, 1995     JUNE 30, 1996   TO JUNE 30, 1996   TO JUNE 30, 1995     JUNE 30, 1996
<S>                               <C>                 <C>              <C>                <C>                 <C>
- ----------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF
 PERIOD........................   $          12.00    $         9.08   $           9.58   $          12.00    $         8.99
                                            ------           -------             ------             ------            ------
INCOME FROM INVESTMENT
 OPERATIONS
  Net Investment Income
    (Loss).....................              (0.02)             0.10               0.03              (0.08)             0.04
  Net Realized and Unrealized
    Gain (Loss)................              (2.70)             3.47               2.84              (2.73)             3.40
                                            ------           -------             ------             ------            ------
  Total From Investment
    Operations.................              (2.72)             3.57               2.87              (2.81)             3.44
                                            ------           -------             ------             ------            ------
DISTRIBUTIONS
  Net Investment Income........                 --             (0.02)                --                 --                --
  Paid in Capital..............              (0.20)               --                 --              (0.20)               --
                                            ------           -------             ------             ------            ------
  Total Distributions..........              (0.20)            (0.02)                --              (0.20)               --
                                            ------           -------             ------             ------            ------
NET ASSET VALUE, END OF
 PERIOD........................   $           9.08    $        12.63   $          12.45   $           8.99    $        12.43
                                            ------           -------             ------             ------            ------
                                            ------           -------             ------             ------            ------
TOTAL RETURN (1)...............             (23.07)%           39.35%             29.26%            (23.83)%           38.26%
                                            ------           -------             ------             ------            ------
                                            ------           -------             ------             ------            ------
RATIOS AND SUPPLEMENTAL DATA
Net Assets, End of Period
 (000s)........................   $          7,658    $       18,701   $          2,041   $          4,085    $        6,780
Ratio of Expenses to Average
 Net Assets (2)................               2.46%**           2.11%              2.87%**             3.20%**           2.86%
Ratio of Net Investment Income
 (Loss) to Average Net Assets
 (2)...........................              (0.44)%**           1.18%             0.88%**            (1.16)%**           0.42%
Portfolio Turnover Rate........                107%              131%               131%               107%              131%
 
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------------
<S>                               <C>                 <C>              <C>                <C>                 <C>
Effect of Voluntary Expense
 Limitation During the Period
  Per Share Benefit to Net
    Investment Income (Loss)...   $           0.13    $         0.09   $           0.04   $           0.12    $         0.12
Ratios Before Expense
 Limitation:
  Expenses to Average Net
    Assets.....................               4.30%**           3.28%              3.89%              5.20%**           4.06%
  Net Investment Income (Loss)
    to Average Net Assets......              (2.26)%**           0.01%            (0.14)%**            (3.16)%**          (0.78)%
Ratio of Expenses to Average
 Net Assets Excluding Country
 Tax Expense...................               2.10%**           2.10%              2.85%**             2.85%**           2.85%
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
 * Commencement of operations.
 ** Annualized.
 + The Latin American Fund began offering the current Class B shares on August
   1, 1995.
(1) Total return is calculated exclusive of sales charges or deferred sales
    charges. Total returns for periods of less than one year are not annualized.
(2) Under the terms of an investment advisory agreement, the Adviser is entitled
    to receive an investment advisory fee calculated at an annual rate of 1.25%
    of the average daily net assets of the Latin American Fund. The Adviser has
    agreed to waive a portion of this fee and/or reimburse expenses of the Latin
    American Fund to the extent that the total operating expenses of the Fund
    exceed 2.10% of the average daily net assets relating to the Class A shares
    and 2.85% of the average daily net assets relating to the Class B and Class
    C shares. For the fiscal periods ended June 30, 1995 and June 30, 1996, the
    Adviser waived advisory fees and/or reimbursed expenses totaling
    approximately $165,000 and $206,000, respectively, for the Latin American
    Fund.
 
                                       10
<PAGE>
                               PROSPECTUS SUMMARY
 
THE COMPANY
 
    The Company currently consists of twenty-two Funds which are designed to
offer investors with Van Kampen American Capital Investment Advisory Corp. ("VK
Advisory" or the "Adviser") providing services as adviser and administrator and
its affiliates, Morgan Stanley Asset Management Inc. ("MSAM" or a "Sub-Adviser")
and Miller, Andersen & Sherrerd, LLP ("MAS" or a "Sub-Adviser") providing
services as sub-advisers and Van Kampen American Capital Distributors, Inc.
("VKAC Distributors" or the "Distributor") providing services as Distributor.
MAS serves as the Sub-Adviser for the Mid Cap Growth and Value Funds, which are
described in a separate prospectus. MSAM serves as the Sub-Adviser for all of
the other Funds listed below. Each Fund has its own investment objective and
policies designed to meet its specific goals. For ease of reference the words
"Morgan Stanley," which begin the name of each Fund, are not included in the
Funds named below. The investment objective of each Fund described in this
Prospectus is as follows:
 
    - The ASIAN GROWTH FUND seeks long-term capital appreciation through
      investment primarily in equity securities of Asian issuers, excluding
      Japan.
 
    - The EMERGING MARKETS FUND seeks long-term capital appreciation by
      investing primarily in equity securities of emerging country issuers.
 
    - The GLOBAL EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of issuers throughout the world, including
      U.S. issuers.
 
    - The GLOBAL EQUITY ALLOCATION FUND seeks long-term capital appreciation by
      investing in equity securities of U.S. and non-U.S. issuers in accordance
      with country weightings determined by the Adviser and with stock selection
      within each country designed to replicate a broad market index.
 
    - The INTERNATIONAL MAGNUM FUND seeks long-term capital appreciation by
      investing primarily in equity securities of non-U.S. issuers in accordance
      with EAFE country weightings determined by the Adviser.
 
    - The JAPANESE EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of Japanese issuers.
 
    - The LATIN AMERICAN FUND seeks long-term capital appreciation by investing
      primarily in equity securities of Latin American issuers and investing in
      debt securities issued or guaranteed by Latin American governments or
      governmental entities.
 
    The other Funds are described in other prospectuses which may be obtained
from the Company at the address and telephone number noted on the cover page of
this Prospectus. The objectives of the Company's other Funds are listed below:
 
GLOBAL AND INTERNATIONAL EQUITY FUNDS:
 
    - The EUROPEAN EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of European issuers.
 
                                       11
<PAGE>
U.S. EQUITY FUNDS:
 
    - The AGGRESSIVE EQUITY FUND seeks capital appreciation by investing
      primarily in a non-diversified portfolio of corporate equity and
      equity-linked securities.
 
    - The AMERICAN VALUE FUND seeks high total return by investing in
      undervalued equity securities of small-to medium-sized corporations.
 
    - The EQUITY GROWTH FUND seeks long-term capital appreciation by investing
      in growth-oriented equity securities of medium and large capitalization
      companies.
 
    - The GROWTH AND INCOME FUND seeks capital appreciation and current income
      by investing primarily in equity and equity-linked securities.
 
    - The MID CAP GROWTH FUND seeks to achieve long-term capital growth by
      investing primarily in common stocks and other equity securities of
      smaller and medium size companies which are deemed by the Adviser to offer
      long-term growth potential.
 
    - The U.S. REAL ESTATE FUND seeks to provide above-average current income
      and long-term capital appreciation by investing primarily in equity
      securities of companies in the U.S. real estate industry, including real
      estate investment trusts.
 
    - The VALUE FUND seeks to achieve above-average total return over a market
      cycle of three to five years, consistent with reasonable risk, by
      investing primarily in a diversified portfolio of common stocks and other
      equity securities which are deemed by the Adviser to be relatively
      undervalued based on various measures such as price/earnings ratios and
      price/book ratios.
 
GLOBAL FIXED INCOME FUNDS:
 
    - The EMERGING MARKETS DEBT FUND seeks high total return by investing
      primarily in debt securities of government, government-related and
      corporate issuers located in emerging countries.
 
    - The GLOBAL FIXED INCOME FUND seeks to produce an attractive real rate of
      return while preserving capital by investing in fixed income securities of
      issuers throughout the world, including U.S. issuers.
 
    - The HIGH YIELD FUND seeks to maximize total return by investing in a
      diversified portfolio of high yield fixed income securities that offer a
      yield above that generally available on debt securities in the four
      highest rating categories of the recognized rating services.
 
    - The WORLDWIDE HIGH INCOME FUND seeks high current income consistent with
      relative stability of principal and, secondarily, capital appreciation, by
      investing primarily in a portfolio of high yielding fixed income
      securities of issuers located throughout the world.
 
MONEY MARKET FUNDS:
 
    - The GOVERNMENT OBLIGATIONS MONEY MARKET FUND seeks to provide as high a
      level of current interest income as is consistent with maintaining
      liquidity and stability of principal.
 
                                       12
<PAGE>
    - The MONEY MARKET FUND seeks to provide as high a level of current interest
      income as is consistent with maintaining liquidity and stability of
      principal.
 
    - The TAX-FREE MONEY MARKET FUND seeks to provide as high a level of current
      interest income exempt from regular federal taxes as is consistent with
      maintaining liquidity and stability of principal.
 
    THE GROWTH AND INCOME, JAPANESE EQUITY, EMERGING MARKETS DEBT, EQUITY
GROWTH, EUROPEAN EQUITY, MID CAP GROWTH, AND TAX-FREE MONEY MARKET FUNDS ARE
CURRENTLY NOT BEING OFFERED.
 
INVESTMENT MANAGEMENT
 
    Van Kampen American Capital Investment Advisory Corp., ("VK Advisory," the
"Adviser" and the "Administrator"), acts as investment adviser to each of the
Funds. Morgan Stanley Asset Management Inc. ("MSAM," or a "Sub-Adviser") acts as
an investment sub-adviser to each of the Funds, except the Mid Cap Growth and
Value Funds. Miller Anderson & Sherrerd, LLP ("MAS," or a "Sub-Adviser") acts as
an investment sub-adviser to each of the Mid Cap Growth and Value Funds.
 
    On May 31, 1997, Morgan Stanley Group, Inc. and Dean Witter, Discover & Co.
merged to form Morgan Stanley, Dean Witter, Discover & Co. Prior thereto, Morgan
Stanley Group Inc. was the parent of the Adviser, the Sub-Advisers and the
Distributor. The Adviser, Sub-Advisers and Distributor are now subsidiaries of
Morgan Stanley, Dean Witter, Discover & Co.
 
RISK FACTORS
 
    The investment policies of each Fund entail certain risks and considerations
of which an investor should be aware. The Funds described herein will invest in
securities of foreign issuers. Securities of foreign issuers are subject to
certain risks not typically associated with domestic securities, including,
among other risks, changes in currency rates and in exchange control
regulations, costs in connection with conversions between various currencies,
limited publicly available information regarding foreign issuers, lack of
uniformity in accounting, auditing and financial standards and requirements,
potential price volatility and lesser liquidity of shares traded on securities
markets, less government supervision and regulation of securities markets,
changes in taxes on income on securities, possible seizure, nationalization or
expropriation of the foreign issuer or foreign deposits, the risk of war and
potentially greater difficulty in obtaining a judgment in a court outside the
United States. The Asian Growth, Emerging Markets, Latin American and
International Magnum Funds invest in securities of issuers located in developing
or emerging market countries, which may impose greater liquidity risks and other
risks not typically associated with investing in the more established markets of
developed countries. Investments in such emerging markets may be in small- to
medium-sized companies, which are more vulnerable to risks than larger
corporations, including a higher degree of liquidity, financial, price
volatility and other risks than investments in the securities of larger
corporations. The Emerging Markets and Latin American Funds may invest in lower
rated and unrated debt securities (including in the case of the Latin American
Fund, sovereign debt) which are considered speculative in nature and involve a
high degree of risk. The Emerging Markets Fund may invest in equity securities
of Russian companies. The registration, clearing and settlement of securities
transactions in Russia are subject to significant risks not normally associated
with securities transactions in the United States and other more developed
markets. See "Additional Investment Information -- Russian Securities
Transactions." The Funds may invest in forward foreign currency exchange
contracts, and the Emerging Markets, Global Equity, Latin American and
International Magnum Funds may invest in foreign currency
 
                                       13
<PAGE>
exchange futures and options. The Emerging Markets, Global Equity, Latin
American and International Magnum Funds may invest in options. The Emerging
Markets and Latin American Funds may engage in short selling. The Latin American
Fund may borrow money for leverage purposes. In addition, each Fund may invest
in repurchase agreements, borrow money, lend its portfolio securities, and
purchase securities on a when-issued or delayed delivery basis. Each Fund may
invest in securities that are neither listed on a stock exchange nor traded
over-the-counter, including private placement securities. Such securities may be
less liquid than publicly traded securities. There are also risks associated
with the non-diversified status of the Emerging Markets, International Magnum
and Latin American Funds. Each of these investment strategies involves specific
risks which are described under "Investment Objectives and Policies" and
"Additional Investment Information" herein and under "Investment Objectives and
Policies" in the Statement of Additional Information.
 
HOW TO INVEST
 
    The Class A, Class B and Class C shares of the Funds are designed to provide
investors a choice of three ways to pay distribution costs. Class A shares of
the Funds are offered at net asset value plus an initial sales charge of up to
5.75 % in graduated percentages based on the investor's aggregate investments in
the Funds. Shares of the Class B shares and Class C shares of the Funds are
offered at net asset value. Class B shares are subject to a contingent deferred
sales charge ("CDSC") for redemptions within five years of purchase and are
subject to higher annual distribution-related expenses than the Class A shares.
Class C shares are subject to a CDSC for redemptions within one year of purchase
and are subject to higher annual distribution-related expenses than the Class A
shares. See "Purchase of Shares" for a discussion of reduction or waiver of
sales charges, which are available for certain investors. Share purchases may be
made through VKAC Distributors, through Participating Dealers or by sending
payments directly to the Company. The minimum initial investment is $500 for
each class of the Fund, except that the minimum initial investment amount is
reduced for certain categories of investors. The minimum for subsequent
investments is $25, except that there is no minimum for automatic reinvestment
of dividends and distributions. See "Purchase of Shares."
 
HOW TO REDEEM
 
    Shares of each Fund may be redeemed at any time at the net asset value per
share (less any applicable CDSC) of the Fund next determined after receipt of
the redemption request. The redemption price may be more or less than the
purchase price. See "Redemption of Shares."
 
                                       14
<PAGE>
                       INVESTMENT OBJECTIVE AND POLICIES
 
    The investment objective of each Fund is described below, together with the
policies the Fund employs in its efforts to achieve its objective. Each Fund's
investment objective is a fundamental policy which may not be changed by the
Fund without the approval of a majority of the Fund's outstanding voting
securities. There is no assurance that a Fund will attain its objective. The
investment policies described below are not fundamental policies and may be
changed without shareholder approval. For more information about certain
investment practices of the Funds, see "Additional Investment Information" below
and "Investment Objectives and Policies" in the Statement of Additional
Information.
 
THE ASIAN GROWTH FUND
 
    The investment objective of the Asian Growth Fund is long-term capital
appreciation through investment primarily in equity securities of Asian issuers,
excluding Japan. The production of any current income is incidental to this
objective. The Fund seeks to achieve its objective by investing, under normal
market conditions, at least 65% of the value of its total assets in equity
securities which are traded on recognized stock exchanges of the countries in
Asia described below and in equity securities of companies organized under the
laws of an Asian country whose business is conducted principally in Asia. The
Fund does not intend to invest in securities which are primarily traded in
markets in Japan or in companies organized under the laws of Japan. The Fund may
also invest in sponsored or unsponsored depositary receipts, including American
Depositary Receipts ("ADRs") of Asian issuers that are traded on stock exchanges
in the United States.
 
    The Asian Growth Fund will invest in countries having more established
markets in the Asian region. The Asian countries to be represented in the Fund
will consist of three or more of the following countries: Hong Kong, Singapore,
Malaysia, Thailand, the Philippines and Indonesia. The Fund may also invest in
common stocks traded on markets in China, Taiwan, South Korea, India, Pakistan,
Sri Lanka and other developing markets that are open to foreign investment.
There is no requirement that the Fund, at any given time, invest in any one
particular country or in all of the countries listed above or in any other Asian
countries. The Fund has no set policy for allocating investments among the Asian
countries in which it will invest. Allocation of investments among the various
countries will depend on the relative attractiveness of the stocks of issuers in
the respective countries. Government regulation and restrictions in many of the
countries of interest may limit the amount, mode and extent of investment in
companies in such countries.
 
    Under normal circumstances, at least 65% of the total assets of the Asian
Growth Fund will be invested in equity securities of issuers in Asian countries,
excluding Japan. Any remaining assets of the Fund will be kept in any
combination of debt instruments, bills and bonds of governmental entities in
Asia and the U.S., in notes, debentures, and bonds of companies in Asia and in
money market instruments in the U.S. With respect to the Fund, equity securities
include common and preferred stocks, convertible securities, and rights and
warrants to purchase common stocks. Debt securities convertible into common
stocks will be investment grade (rated in one of the four highest rating
categories by an internationally recognized statistical rating organization (an
"NRSRO") or, if unrated will be of comparable quality as determined by the
Sub-Adviser under the supervision of the Board of Directors.
 
    The Adviser's approach in selecting investments for the Asian Growth Fund is
oriented to individual stock selection and is value driven. In selecting stocks
for the Fund, the Sub-Adviser initially identifies those stocks which it
believes to be undervalued in relation to the issuer's assets, cash flow,
earnings and revenues, and then
 
                                       15
<PAGE>
evaluates the future value of such stocks by running the results of an in-depth
study of the issuer through a dividend discount model. The Sub-Adviser utilizes
the research of a number of sources, including its affiliate in Geneva,
Switzerland, Morgan Stanley Capital International ("MSCI"), in identifying
attractive securities, and applies a number of proprietary screening criteria to
identify those securities it believes to be undervalued. Fund holdings are
regularly reviewed and subjected to fundamental analysis to determine whether
they continue to conform to the Sub-Adviser's value criteria. Those which no
longer conform are sold. The Sub-Adviser will analyze assets, revenues and
earnings of an issuer. In selecting industries and particular issuers, the
Sub-Adviser will evaluate costs of labor and raw materials, access to
technology, export of products and government regulation. Although the Fund
seeks to invest in larger companies, it may invest in small- and medium-sized
companies that, in the Sub-Adviser's view, have potential for growth. The Fund
may invest in equity securities of smaller capitalized companies, which are more
vulnerable to financial and other risks than larger companies. Investment in
securities of smaller companies may involve a higher degree of risk and price
volatility than in securities of larger companies. The Fund's investments will
include securities of issuers located in developing countries and traded in
emerging markets. These securities pose greater liquidity risks and other risks
than securities of companies located in developed countries and traded in more
established markets.
 
    Although the Asian Growth Fund intends to invest primarily in securities
listed on stock exchanges, it may also invest in securities traded in
over-the-counter markets and, to a limited extent, in non-publicly traded
securities. Securities traded in over-the-counter markets and non-publicly
traded securities pose liquidity risks.
 
    Pending investment or settlement, and for liquidity purposes, the Fund may
invest in domestic, Eurodollar and foreign short-term money market instruments.
For temporary defensive purposes, the Fund may invest in money market
instruments and short- and medium-term debt securities that the Adviser believes
to be of high quality, or hold cash.
 
    Because of the lack of hedging facilities in the currency markets of Asia,
no active currency hedging strategy is anticipated currently. Instead, each
investment will be considered on a total currency adjusted basis with the U.S.
Dollar as a base currency. The Fund may enter into foreign currency exchange
contracts.
 
    For further information about the foregoing and certain additional
investment practices of the Asian Growth Fund, see "Additional Investment
Information" below.
 
THE EMERGING MARKETS FUND
 
    The investment objective of the Emerging Markets Fund is to provide
long-term capital appreciation by investing primarily in equity securities of
emerging country issuers. Under normal conditions, at least 65% of the Fund's
total assets will be invested in emerging country equity securities. With
respect to the Fund, equity securities include common and preferred stocks,
convertible securities, and rights and warrants to purchase common stocks. As
used in this Prospectus, the term "emerging country" applies to any country
which, in the opinion of the Sub-Adviser, is generally considered to be an
emerging or developing country by the international financial community,
including the International Bank for Reconstruction and Development (more
commonly known as The World Bank) and the International Finance Corporation.
There are currently over 130 countries which, in the opinion of the Sub-Adviser,
are generally considered to be emerging or developing countries by the
international financial community, approximately 40 of which currently have
stock markets. These countries generally include every nation in the world
except the United States, Canada, Japan, Australia, New Zealand and most nations
located in Western Europe. Currently, investing in many emerging countries is
not feasible or may
 
                                       16
<PAGE>
involve unacceptable political risks. The Fund will focus its investments on
those emerging market countries in which it believes the economics are
developing strongly and in which the markets are becoming more sophisticated.
The Fund intends to invest primarily in some or all of the following countries:
 
Argentina
Botswana
Brazil
Chile
China
Colombia
Ghana
Greece
Hong Kong
Hungary
India
Indonesia
Israel
Jamaica
Jordan
Kenya
Malaysia
Mexico
Morocco
Nigeria
Pakistan
Peru
Philippines
Poland
Portugal
Russia
South Africa
South Korea
Sri Lanka
Taiwan
Thailand
Turkey
Venezuela
Zimbabwe
 
    As markets in other countries develop, the Emerging Markets Fund expects to
expand and further diversify the emerging countries in which it invests. The
Fund does not intend to invest in any security in a country where the currency
is not freely convertible to U.S. Dollars, unless the Fund has obtained the
necessary governmental licensing to convert such currency or other appropriately
licensed or sanctioned contractual guarantee to protect such investment against
loss of that currency's external value, or the Fund has a reasonable expectation
at the time the investment is made that such governmental licensing or other
appropriately licensed or sanctioned guarantee would be obtained or that the
currency in which the security is quoted would be freely convertible at the time
of any proposed sale of the security by the Fund.
 
    An emerging country security is one issued by a company that, in the opinion
of the Sub-Adviser, has one or more of the following characteristics: (i) its
principal securities trading market is in an emerging country; (ii) alone or on
a consolidated basis it derives 50% or more of its annual revenue from either
goods produced, sales made or services performed in emerging countries; or (iii)
it is organized under the laws of, and has a principal office in, an emerging
country. The Sub-Adviser will base determinations as to eligibility on publicly
available information and inquiries made to the companies.
 
    To the extent that the Emerging Markets Fund's assets are not invested in
emerging country equity securities, the remainder of the assets may be invested
in (i) debt securities denominated in the currency of an emerging country or
issued or guaranteed by an emerging country company or the government of an
emerging country; (ii) equity or debt securities of corporate or governmental
issuers located in industrialized countries; and (iii) short-term and
medium-term debt securities of the type described below under "Additional
Investment Information -- Temporary Investments." The Fund's assets may be
invested in debt securities when the Fund believes that, based upon factors such
as relative interest rate levels and foreign exchange rates, such debt
securities offer opportunities for long-term capital appreciation. It is likely
that many of the debt securities in which the Fund will invest will be unrated,
and whether or not rated, such securities may have speculative characteristics.
When deemed appropriate by the Sub-Adviser, the Fund may invest up to 10% of its
total assets (measured at the time of the investment) in lower quality debt
securities. Lower quality debt securities, also known as "junk bonds," are often
considered to be speculative and involve greater risk of default or price
changes due to changes in the issuer's creditworthiness. The market prices of
these securities may fluctuate more than those of higher quality securities and
may decline significantly in periods of general economic
 
                                       17
<PAGE>
difficulty, which may follow periods of rising interest rates. Securities in the
lowest quality category may present the risk of default, or may be in default.
For temporary defensive purposes, the Fund may invest in money market
instruments and short- and medium-term debt securities that the Sub-Adviser
believes to be of high quality, or hold cash.
 
    The Emerging Markets Fund may invest indirectly in securities of emerging
country issuers through sponsored or unsponsored depositary receipts, including
ADRs. The Fund may also invest in non-publicly traded securities, private
placements and restricted securities.
 
    For further information about the foregoing and certain additional
investment practices of the Emerging Markets Fund, including the particular
risks associated with Russian Securities, see "Additional Investment
Information" below.
 
THE GLOBAL EQUITY FUND
 
    The Global Equity Fund seeks long-term capital appreciation by investing
primarily in equity securities of issuers throughout the world, including U.S.
issuers. Equity securities for this Fund include common and preferred stocks,
convertible securities, and rights and warrants to purchase common stocks. The
Fund may invest in American, global or other types of depositary receipts. The
Fund also may invest in equity-linked securities, such as PERCS, ELKS and LYONs.
The Sub-Adviser expects that, under normal circumstances, at least 20% of the
Fund's total assets will be invested in the common stocks of U.S. issuers. The
remainder of the Fund will be invested in issuers located throughout the world,
including those located in emerging markets. At least 65% of the total assets of
the Fund will be invested in equity securities under normal circumstances.
Securities in emerging markets may not be as liquid as those in developed
markets and pose greater risks. See "The Emerging Markets Fund," above for a
discussion of emerging markets. Although the Fund intends to invest primarily in
securities listed on stock exchanges, it will also invest in securities traded
in over-the-counter markets. The Fund may invest in derivatives, when-issued and
delayed delivery securities and non-publicly traded securities, including
private placements and restricted securities. For temporary defensive purposes,
the Fund invests in money market instruments and short-term and medium-term debt
securities as described below under "Additional Investment Information --
Temporary Investments."
 
    The Sub-Adviser's approach in selecting investments for the Fund is oriented
to individual stock selection, and is value driven. The Sub-Adviser initially
identifies those stocks which it believes to be undervalued in relation to the
issuer's assets, cash flow, earnings and revenues, and then evaluates the future
value of such stocks by running the results of an in-depth study of the issuer
through a dividend discount model. The Sub-Adviser utilizes the research from a
number of sources, including MSCI, in identifying attractive securities, and
applies a number of proprietary screening criteria to identify those securities
it believes to be undervalued. Fund holdings are regularly reviewed and
subjected to fundamental analysis to determine whether they continue to conform
to the Sub-Adviser's value criteria. Securities which no longer conform to such
value criteria are sold.
 
    For further information about the foregoing and certain additional
investment practices of the Fund, see "Additional Investment Information" below.
 
                                       18
<PAGE>
THE GLOBAL EQUITY ALLOCATION FUND
 
    The investment objective of the Global Equity Allocation Fund is to provide
long-term capital appreciation by investing in equity securities of U.S. and
non-U.S. issuers in accordance with country weightings determined by the Adviser
and with stock selection within each country designed to replicate a broad
market index. The Fund will, under normal market conditions, invest at least 65%
of the value of its total assets in equity securities of issuers in at least
three different countries. The Sub-Adviser utilizes a "top-down" approach in
selecting investments for the Fund that emphasizes country selection and
weighting rather than individual stock selection. This approach reflects the
Sub-Adviser's philosophy that a diversified selection of securities representing
exposure to world markets based upon the economic outlook and current valuation
levels for each country is an effective way to maximize the return and minimize
the risk associated with global investment.
 
    The Sub-Adviser determines country allocations for the Global Equity
Allocation Fund on an ongoing basis within policy ranges dictated by each
country's market capitalization and liquidity. The Fund will invest in the
United States and other industrialized countries throughout the world that
comprise the Morgan Stanley Capital International World Index. These countries
currently are Australia, Austria, Belgium, Canada, Denmark, Finland, France,
Germany, Hong Kong, Italy, Japan, the Netherlands, New Zealand, Norway,
Singapore/ Malaysia, Spain, Sweden, Switzerland, the United Kingdom and the
United States. In addition, the Fund may invest a portion of its assets in
emerging country equity securities, which are described in detail in the
discussion of the Emerging Markets Fund, above. The Sub-Adviser intends to use
the same criteria as used for the Emerging Markets Fund in selecting emerging
market securities for investment. The Fund currently intends to invest in some
or all of the following countries: Argentina, Indonesia, Portugal, South Africa,
Brazil, Malaysia, Philippines, Thailand, India, Mexico, South Korea and Turkey.
 
    By analyzing a variety of macroeconomic and political factors, the
Sub-Adviser develops fundamental projections on interest rates, currencies,
corporate profits and economic growth for each country. These country
projections are then used to determine what the Sub-Adviser believes to be a
fair value for the stock market of each country. Discrepancies between actual
value and fair value, as determined by the Sub-Adviser, provide an expected
return for each stock market. The expected return is adjusted by currency return
expectations derived from the Sub-Adviser's purchasing-power parity exchange
rate model to arrive at an expected total return in U.S. Dollars. The final
country allocation decision is then reached by considering the expected total
return in light of various country specific considerations such as market size,
volatility, liquidity and country risk.
 
    Within a particular country, investments are made through the purchase of
common stocks which, in the aggregate, replicate a broad market index, which in
most cases will be the Morgan Stanley Capital International ("MSCI") Index for
the particular country. The MSCI Indices measure the performance of stock
markets worldwide. The various MSCI Indices are based on the share prices of
companies listed on the local stock exchange of the specified country or
countries within a specified region. The combined market capitalization of
companies in these indices represent approximately 60 percent of the aggregate
market value of the covered stock exchanges. Companies included in the MSCI
country index replicate the industry composition of the local market and are a
representative sampling of large, medium and small companies, subject to
liquidity. Non-domiciled companies traded on the local exchange and companies
with restricted float due to dominant shareholders or cross-ownership are
avoided. The Sub-Adviser may overweight or underweight an industry segment of a
particular index if it concludes this would be advantageous to the Fund. With
respect to the Fund, equity securities include common and preferred stocks,
convertible securities, and rights and warrants to
 
                                       19
<PAGE>
purchase common stocks. Debt securities convertible into common stocks will be
investment grade (rated in one of the four highest rating categories by an
NRSRO) or, if unrated, will be of comparable quality as determined by the
Sub-Adviser under the supervision of the Board of Directors. Indexation of the
Fund's stock selection reduces stock-specific risk through diversification and
minimizes transaction costs, which can be substantial in foreign markets.
 
    The Global Equity Allocation Fund will normally purchase common stocks
listed on a major stock exchange in the subject country. The Global Equity
Allocation Fund may invest in non-publicly traded securities, private placements
and restricted securities. For temporary defensive purposes, the Fund may invest
in money market instruments and short- and medium-term debt securities as
described below under "Additional Investment Information -- Temporary
Investments."
 
    For further information about the foregoing and certain additional
investment practices of the Fund, see "Additional Investment Information" below.
 
THE INTERNATIONAL MAGNUM FUND
 
    The investment objective of the International Magnum Fund is to provide
long-term capital appreciation. The production of any current income is
incidental to this objective. The Fund seeks to achieve its objective by
investing primarily in equity securities of non-U.S. issuers in accordance with
the EAFE country (defined below) weightings determined by the Sub-Adviser. With
respect to the Fund, equity securities include common and preferred stocks,
convertible securities, and rights and warrants to purchase common stocks. The
equity securities in which the Fund may invest may be denominated in any
currency.
 
    The countries in which the International Magnum Fund will invest are those
comprising the MSCI EAFE Index (the "Index"), which includes Australia, Japan,
New Zealand, most nations located in Western Europe and certain developed
countries in Asia, such as Hong Kong and Singapore (each an "EAFE country," and
collectively the "EAFE countries"). At least 65% of the total assets of the Fund
will be invested in equity securities of issuers in at least three different
EAFE countries under normal circumstances.
 
    By analyzing a variety of macroeconomic and political factors, the
Sub-Adviser develops fundamental projections on comparative interest rates,
currencies, corporate profits and economic growth among the various regions
represented in the Index. These projections will be used to establish regional
allocation strategies. Within these regional allocations, the Sub-Adviser then
selects equity securities among issuers of a region.
 
    The Sub-Adviser's approach in selecting among equity securities within a
region comprised of EAFE countries is oriented to individual stock selection and
is value driven. The Sub-Adviser identifies those equity securities which it
believes to be undervalued in relation to the issuer's assets, cash flow,
earnings and revenues. In selecting investments, the Sub-Adviser utilizes the
research of a number of sources, including MSCI. Fund holdings are regularly
reviewed and subjected to fundamental analysis to determine whether they
continue to conform to the Sub-Adviser's investment criteria. Equity securities
which no longer conform to such investment criteria will be sold.
 
    Although the International Magnum Fund intends to invest primarily in equity
securities listed on a stock exchange in an EAFE country, the Fund may invest in
equity securities that are traded over the counter or that are not admitted to
listing on a stock exchange or dealt in on a regulated market. As a result of
the absence of a public trading market, such securities may pose liquidity
risks. The Fund may also invest in private placements
 
                                       20
<PAGE>
or initial public offerings in the form of oversubscriptions. Such investments
generally entail short-term liquidity risks.
 
    The International Magnum Fund may invest up to 10% of its total assets in
(i) investment funds with investment objectives similar to that of the Fund and
(ii) for temporary purposes, money market funds and pooled investment vehicles.
If the Fund invests in other investment funds, stockholders will bear not only
their proportionate share of the expenses of the Fund (including operating
expenses and fees of the Adviser), but also will indirectly bear similar
expenses of the underlying investment fund.
 
    Although the International Magnum Fund anticipates being fully invested in
equity securities of EAFE countries, the Fund may invest, under normal
circumstances for cash management purposes, up to 35% of its total assets in
certain short-term (less than twelve months to maturity) and medium-term (not
greater than five years to maturity) debt securities or hold cash. For temporary
defensive purposes, the Fund may invest in money market instruments and short
and medium-term debt securities described below under "Additional Investment
Information -- Temporary Investments."
 
    For further information about the foregoing and certain additional
investment practices of the International Magnum Fund, see "Additional
Investment Information" below.
 
THE JAPANESE EQUITY FUND
 
    The investment objective of the Japanese Equity Fund is to provide long-term
capital appreciation. The Fund seeks to achieve this objective by investing
primarily in equity securities of Japanese issuers. With respect to the Fund,
equity securities include common and preferred stocks, convertible securities,
and rights and warrants to purchase common stocks and depositary receipts.
 
    Under normal conditions, the Japanese Equity Fund will invest at least 80%
of its total assets in securities issued by entities that are organized under
the laws of Japan, entities for which the principal securities trading market is
in Japan, and entities not organized under the laws of Japan but deriving 50% or
more of their revenues or profits from goods produced or sold, investments made,
or services performed in Japan or which have at least 50% of their assets
situated in Japan. These securities may include debt securities (issued by the
Japanese government or by Japanese companies) when the Sub-Adviser believes that
the potential for capital appreciation from investment in debt securities equals
or exceeds that available from investment in equity securities. In making
investment decisions, the Sub-Adviser will consider, among other factors, the
size of the company, its financial condition, its marketing and technical
strengths and its competitiveness in its industry. All debt securities in which
the Fund may invest will be rated no lower than BBB by Standard & Poor's Ratings
Group ("S&P"), Baa by Moody's Investors Services, Inc. ("Moody's") or BBB by
Mikuni Inc. ("Mikuni") (a Japanese rating agency) or, if unrated, of comparable
quality as determined by the Sub-Adviser. Securities rated BBB by S&P, Baa by
Moody's or BBB by Mikuni have speculative characteristics and changes in
economic conditions or other circumstances are more likely to lead to a weakened
capacity to make principal and interest payments on such securities than would
be the case with higher rated securities. The convertible securities in which
the Fund may invest include bonds, notes, debentures, preferred stocks and other
securities convertible into common stocks and may be fixed-income or zero coupon
debt securities. Prior to their conversion, convertible securities may have
characteristics similar to nonconvertible debt securities.
 
    The Japanese Equity Fund currently intends to focus its investments in
Japanese companies that have an active market for their shares and that the
Sub-Adviser believes show a potential for better than average growth.
 
                                       21
<PAGE>
The Fund anticipates that most equity securities of Japanese companies in which
it invests, either directly or indirectly by means of ADRs or convertible
debentures, will be listed on securities exchanges in Japan. The Fund may also
invest in equity securities of Japanese companies that are traded in an
over-the-counter market.
 
    The Japanese Equity Fund may also invest up to 20% of its total assets in
cash or short-term government or other short-term prime obligations or
repurchase agreements so that funds may be readily available for general
corporate purposes, including the payment of dividends, redemptions and
operating expenses, for investment in securities through exercise of rights or
otherwise. For temporary defensive purposes, the Fund may invest in money market
instruments and medium-term debt securities as described below under "Additional
Investment Information -- Temporary Investments" below.
 
    For further information about the foregoing and certain additional
investment practices of the Japanese Equity Fund, see "Additional Investment
Information" below.
 
    Investors should consider the following factors inherent in investment in
Japan.
 
    TRADE ISSUES.  Because of the concentration of Japanese exports in highly
visible products such as automobiles, machine tools and semiconductors, and the
large trade surpluses ensuing therefrom, Japan is in a difficult phase in its
relation with its trading partners, particularly the U.S., where the trade
imbalance is the greatest. Retaliatory action taken by such trading partners
could affect the ability of Japanese companies to export goods to these
countries, which could negatively impact the value of securities in the Fund.
 
    CURRENCY FACTORS.  Over a long period of years, the yen has generally
appreciated in relation to the dollar. The yen's appreciation would add to the
returns of dollars invested through the Fund in Japan. A decline in the value of
the yen would have the opposite effect, adversely affecting the value of the
Fund in dollar terms.
 
    THE JAPANESE STOCK MARKET.  Like other stock markets, the Japanese stock
market can be volatile. A decline in the market may have an adverse effect on
the availability of credit and on the value of the substantial stock holdings of
Japanese companies in particular, Japanese banks, insurance companies and other
financial institutions. A decline in the market may contribute to weakness in
Japan's economy. The common stocks of many Japanese companies continue to trade
at high price-earnings ratios. Differences in accounting methods make it
difficult to compare the earnings of Japanese companies with those of companies
in other countries, especially the United States. In general, however, reported
net income in Japan is understated relative to U.S. accounting standards. In
addition, Japanese companies have tended historically to have higher growth
rates than U.S. companies, and Japanese interest rates have generally been lower
than in the U.S., both of which factors tend to result in lower discount rates
and higher price-earnings ratios in Japan than in the United States.
 
THE LATIN AMERICAN FUND
 
    The investment objective of the Latin American Fund is long-term capital
appreciation. The Fund seeks to achieve this objective by investing primarily in
equity securities (i) of companies organized in or for which the principal
securities trading market is in Latin America, (ii) denominated in a Latin
American currency issued by companies to finance operations in Latin America, or
(iii) of companies that alone or on a consolidated basis derive 50% or more of
their annual revenues from either goods produced, sales made or services
performed in Latin America (collectively, "Latin American issuers") and by
investing, from time to time, in debt securities issued or guaranteed by a Latin
American government or governmental entity ("Sovereign Debt"). With respect to
the Fund, unless otherwise indicated, Latin America consists of Argentina,
Bolivia, Brazil, Chile, Colombia,
 
                                       22
<PAGE>
Costa Rica, Cuba, the Dominican Republic, Ecuador, El Salvador, Guatemala,
Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Uruguay and Venezuela.
Income is not an investment objective or a consideration in selecting
investments.
 
    Under normal conditions, substantially all, but not less than 80%, of the
Latin American Fund's total assets are invested in equity securities of Latin
American issuers and in Sovereign Debt. With respect to the Fund, equity
securities include common or preferred stocks (including convertible preferred
stock), bonds, notes or debentures convertible into common or preferred stock,
stock purchase warrants or rights, equity interests in trusts or partnerships or
American, global or other types of depositary receipts. Securities in which the
Latin American Fund may invest include those that are neither listed on a stock
exchange nor traded over-the-counter. As a result of the absence of a public
trading market for these securities, they may be less liquid than publicly
traded securities.
 
    The Latin American Fund focuses its investments in listed equity securities
in Argentina, Brazil, Chile and Mexico, the most developed capital markets in
Latin America. The Fund expects, under normal market conditions, to have at
least 55% of its total assets invested in listed equity securities of issuers in
these four countries. In addition, the Fund actively invests in markets in other
Latin American countries such as Colombia, Peru and Venezuela. The Fund is not
limited in the extent to which it may invest in any Latin American country and
intends to invest opportunistically as markets develop. The portion of the
Fund's holdings in any Latin American country will vary from time to time,
although the portion of the Fund's assets invested in Chile may tend to vary
less than the portions invested in other Latin American countries because, with
limited exceptions, capital invested in Chile currently cannot be repatriated
for one year.
 
    The securities markets of Latin American countries are substantially
smaller, less liquid and more volatile than the major securities markets in the
United States. A high proportion of the shares of many Latin American issuers
may be held by a limited number of persons, which may limit the number of shares
available for investment by the Fund. A limited number of issuers in most, if
not all, Latin American securities markets may represent a disproportionately
large percentage of market capitalization and trading value. The limited
liquidity of Latin American securities markets may also affect the Fund's
ability to acquire or dispose of securities at the price and time it wishes to
do so. In addition, certain Latin American securities markets, including those
of Argentina, Brazil, Chile and Mexico, are susceptible to being influenced by
large investors trading significant blocks of securities or by large
dispositions of securities resulting from the failure to meet margin calls when
due.
 
    In addition to their smaller size, lesser liquidity and greater volatility,
Latin American securities markets are less developed than U.S. securities
markets. Disclosure and regulatory standards are in many respects less stringent
than U.S. standards. Furthermore, there is a low level of monitoring and
regulation of the markets and the activities of investors in such markets, and
enforcement of existing regulations has been extremely limited. Consequently,
the prices at which the Fund may acquire investments may be affected by other
market participants' anticipation of the Fund's investing, by trading by persons
with material non-public information and by securities transactions by brokers
in anticipation of transactions by the Fund in particular securities.
Commissions and other transaction costs on most, if not all, Latin American
securities exchanges are generally higher than in the United States, although
the Fund will endeavor to achieve the most favorable net results on its
portfolio transactions.
 
                                       23
<PAGE>
    The governments of some Latin American countries have been engaged in
programs of selling part or all of their stakes in government owned or
controlled enterprises ("privatization"). The Sub-Adviser believes that
privatization may offer investors opportunities for significant capital
appreciation and intends to invest assets of the Fund in privatization in
appropriate circumstances. In certain Latin American countries, the ability of
foreign entities, such as the Fund, to participate in privatization may be
limited by local law, or the terms on which the Fund may be permitted to
participate may be less advantageous than those for local investors. There can
be no assurance that Latin American governments will continue to sell companies
currently owned or controlled by them or that any privatization programs in
which the Fund participates will be successful.
 
    Several Latin American countries have adopted debt conversion programs,
pursuant to which investors may use Sovereign Debt of a country, directly or
indirectly, to make investments in local companies. The terms of the various
programs vary from country to country although each program includes significant
restrictions on the application of the proceeds received in the conversion and
on the remittance of profits on the investment and of the invested capital. The
Fund may participate in Latin American debt conversion programs. The Sub-Adviser
will evaluate opportunities to enter into debt conversion transactions as they
arise.
 
    To the extent that the Latin American Fund's assets are not invested in
equity securities of Latin American issuers or in Sovereign Debt, the remainder
of the assets may be invested in (i) debt securities of Latin American corporate
issuers, (ii) equity or debt securities of corporate or governmental issuers
located in countries outside Latin America, and (iii) short-term and medium-term
debt securities of the type described below under "Temporary Investments." The
Fund's assets may be invested in debt securities when the Fund believes that,
based upon factors such as relative interest rate levels and foreign exchange
rates, such debt securities offer opportunities for long-term capital
appreciation. It is likely that many of the debt securities in which the Fund
will invest will be unrated. The Fund may invest up to 20% of its total assets
in securities that are determined by the Sub-Adviser to be comparable to
securities rated below investment grade by S&P or Moody's. Such lower-quality
securities are regarded as being predominantly speculative and involve
significant risks.
 
    The Latin American Fund's holdings of lower-quality debt securities will
consist predominantly of Sovereign Debt, much of which trades at substantial
discounts from face value and which may include Sovereign Debt comparable to
securities rated as low as D by S&P or C by Moody's. The Fund may invest in
Sovereign Debt to hold and trade in appropriate circumstances, as well as to use
to participate in debt for equity conversion programs. The Fund will invest in
Sovereign Debt only when the Fund believes such investments offer opportunities
for long-term capital appreciation. Investment in Sovereign Debt involves a high
degree of risk and such securities are generally considered to be speculative in
nature.
 
    For temporary defensive purposes, the Latin American Fund may invest less
than 80% of its total assets in Latin American equity securities and Sovereign
Debt, in which case the Fund may invest in other equity or debt securities or
may invest in certain short-term (less than twelve months to maturity) and
medium-term (not greater than five years to maturity) debt securities or hold
cash. The Fund may enter into forward foreign currency exchange contracts and
foreign currency futures contracts, may purchase and write (sell) put and call
options on securities, foreign currency and on foreign currency futures
contracts, and may enter into stock index and interest rate futures contracts
and options thereon. There currently are limited options and futures markets for
Latin American currencies, securities and indexes, and the nature of the
strategies adopted by the Sub-Adviser and the extent to which those strategies
are used depends on the development of those markets. The
 
                                       24
<PAGE>
Fund may also from time to time lend securities (but not in excess of 20% of its
total assets) from its portfolio to brokers, dealers and financial institutions.
 
    The Latin American Fund will not invest more than 25% of its total assets in
one industry except and to the extent, and only for such period of time as, the
Board of Directors determines in view of the considerations discussed below that
it is appropriate and in the best interest of the Fund and its shareholders to
invest more than 25% of the Fund's total assets in companies involved in the
telecommunications industry. Since the securities markets of Latin American
countries are emerging markets characterized by a relatively small number of
issues, it is possible that one or more markets may on occasion be dominated by
issues of companies engaged in the telecommunications industry. In addition, it
is possible that government privatization in certain Latin American countries,
which currently represent a primary source of new issues in many Latin American
markets and often represent attractive investment opportunities, will occur in
that industry. As a result, the Fund has adopted a policy under which it may
invest more than 25% of its total assets in securities of issuers in the
telecommunications industry. The Fund would only take this action if the Board
of Directors determines that the Latin American markets are dominated by
securities of issuers in such industry and that, in light of the anticipated
return, investment quality, availability and liquidity of the issues in the
industry, the Fund's ability to achieve its investment objective would, in light
of its investment policies and limitations, be materially adversely affected if
the Fund were not able to invest greater than 25% of its total assets in the
telecommunications industry. In the event that the Board of Directors permits
greater than 25% of the Fund's total assets to be invested in the
telecommunications industry, the Fund may be exposed to increased investment
risks peculiar to that industry. The Fund will notify its shareholders of any
decision by the Board of Directors to permit (or cease) investments of more than
25% of the Fund's total assets in the telecommunications industry. Such notice
will, to the extent applicable, include a discussion of any increased investment
risks peculiar to such industry to which the Fund may be exposed.
 
    The Board of Directors has determined that, in light of the increased
presence of telecommunications companies in the Latin American markets, the
Fund's ability to achieve its investment objective would be materially adversely
affected if it were not permitted to invest more than 25% of its assets in
securities of companies in the telecommunications industries of the Latin
American countries in which the Fund invests. In accordance with the Fund's
investment restrictions and as a result of the Board's action, the Fund is
required to invest at least 25% of its total assets in securities of Latin
American issuers engaged in the telecommunications industry. The Fund will
remain so invested until the Board determines that the Fund should invest less
than 25% of its assets in that industry. Because the Fund will have a more
concentrated position in the securities of a single sector within the Latin
American securities markets, the Fund will be subject to certain risks with
respect to these portfolio securities. Market price movements affecting
telecommunications companies and their securities will have a greater impact on
the Fund's performance because of the more concentrated position in such
securities. Telecommunications may be subject to greater government regulation
than many other industries. Changes in government policies and the need to
obtain regulatory approvals may have a material effect on products and services
offered by telecommunications companies. Technological and structural
developments may adversely affect the profitability of telecommunications
companies. To better control the Fund's exposure to such risks, the Board has
limited investments in telecommunications securities to not more than 40% of the
Fund's assets.
 
                                       25
<PAGE>
    The Latin American Fund is authorized to borrow up to 33 1/3% of its total
assets (including the amount borrowed), less all liabilities and indebtedness
other than the borrowing, for investment purposes to increase the opportunity
for greater return and for payment of dividends. Such borrowings would
constitute leverage, which is a speculative characteristic. Leveraging will
magnify declines as well as increases in the net asset value of the Fund's
shares and in the yield on the Fund's investments. Although the Fund is
authorized to borrow, it will do so only when the Sub-Adviser believes that
borrowing will benefit the Fund after taking into account considerations such as
the costs of borrowing and the likely investment returns on securities purchased
with borrowed monies. Borrowing by the Fund will create the opportunity for
increased net income but, at the same time, will involve special risk
considerations.
 
    The Latin American Fund expects that any borrowing, for other than temporary
purposes, will be made on a secured basis. The Fund's custodian will either
segregate the assets securing the borrowing for the benefit of the lenders or
arrangements will be made with a suitable sub-custodian. If assets used to
secure the borrowing decrease in value, the Fund may be required to pledge
additional collateral to the lender in the form of cash or securities to avoid
liquidation of those assets.
 
    The Latin American Fund may also enter into reverse repurchase agreements.
 
    For further information about the foregoing and certain additional
investment practices of the Latin American Fund, see "Additional Investment
Information" below.
 
                                       26
<PAGE>
                       ADDITIONAL INVESTMENT INFORMATION
 
BORROWING AND OTHER FORMS OF LEVERAGE
 
    The Global Equity Allocation, Asian Growth, Emerging Markets, International
Magnum, and Japanese Equity Funds may borrow up to 10% of their total assets as
a temporary measure for extraordinary or emergency purposes. These funds may not
purchase additional securities when borrowings exceed 5% of total assets. The
Latin American Fund may enter into reverse repurchase agreements in accordance
with its investment objective and policies and borrow amounts up to 33 1/3% of
its total assets (including the amount borrowed), less all liabilities and
indebtedness other than the borrowing. The Global Equity Fund may borrow money
(i) as a temporary measure for extraordinary or emergency purposes, and (ii) in
connection with reverse repurchase agreements, provided that (i) and (ii) in
combination do not exceed 33 1/3% of the Fund's total assets (including the
amount borrowed) less liabilities (exclusive of borrowings) and, further, that
the Fund may not purchase additional securities when borrowings exceed 5% of its
total assets.
 
CONVERTIBLE SECURITIES, WARRANTS AND EQUITY-LINKED SECURITIES
 
    Each Fund may invest in convertible securities, preferred stock, warrants or
other securities exchangeable under certain circumstances for shares of common
stock. Warrants are instruments giving holders the right, but not the
obligation, to buy shares of a company at a given price during a specified
period.
 
    The Global Equity Fund may invest in equity-linked securities which are
securities that are convertible into, or the value of which is based upon the
value of, equity securities upon certain terms and conditions. The amount
received by an investor at maturity of such securities is not fixed but is based
on the price of the underlying common stock. It is impossible to predict whether
the price of the underlying common stock will rise or fall. Trading prices of
the underlying common stock will be influenced by the issuer's operational
results, by complex, interrelated political, economic, financial or other
factors affecting the capital markets, the stock exchanges on which the
underlying common stock is traded and the market segment of which the issuer is
a part. In addition, it is not possible to predict how equity-linked securities
will trade in the secondary market which is fairly developed and liquid. The
market for such securities may be shallow, however, and high volume trades may
be possible only with discounting. In addition to the foregoing risks, the
return on such securities depends on the creditworthiness of the issuer of the
securities, which may be the issuer of the underlying securities or a third
party investment banker or other Lender. The creditworthiness of such third
party issuer of equity-linked securities may, and often does, exceed the
creditworthiness of the issuer of the underlying securities. The advantage of
using equity-linked securities over traditional equity and debt securities is
that the former are income producing vehicles that may provide a higher income
than the dividend income on the underlying equity securities while allowing some
participation in the capital appreciation of the underlying equity securities.
Another advantage of using equity-linked securities is that they may be used for
hedging to reduce the risk of investing in the generally more volatile
underlying equity securities.
 
DEPOSITARY RECEIPTS
 
    The Asian Growth, Emerging Markets, Global Equity, Japanese Equity and Latin
American Funds may invest in depositary receipts, including ADRs, Global
Depositary Receipts ("GDRs"), European Depositary Receipts ("EDRs") and other
depositary receipts, to the extent that such depositary receipts become
available. ADRs are securities, typically issued by a U.S. financial institution
(a "depositary"), that evidence ownership interests in a security or a pool of
securities issued by a foreign issuer (the "underlying issuer") and deposited
 
                                       27
<PAGE>
with the depositary. ADRs include American Depositary Shares and New York Shares
and may be "sponsored" or "unsponsored." Sponsored ADRs are established jointly
by a depositary and the underlying issuer, whereas unsponsored ADRs may be
established by a depositary without participation by the underlying issuer.
GDRs, EDRs and other types of depositary receipts are typically issued by
foreign depositaries, although they may also be issued by U.S. depositaries, and
evidence ownership interests in a security or pool of securities issued by
either a foreign or a U.S. corporation.
 
    Holders of unsponsored depositary receipts generally bear all the costs
associated with establishing the unsponsored depositary receipt. The depositary
of an unsponsored depositary receipt is under no obligation to distribute
shareholder communications received from the underlying issuer or to pass
through to the holders of the unsponsored depositary receipt voting rights with
respect to the deposited securities or pool of securities. Depositary receipts
are not necessarily denominated in the same currency as the underlying
securities to which they may be connected. Generally, depositary receipts in
registered form are designed for use in the U.S. securities market and
depositary receipts in bearer form are designed for use in securities markets
outside the United States. The Funds may invest in sponsored and unsponsored
depositary receipts. For purposes of the Funds' investment policies, a Fund's
investments in depositary receipts will be deemed to be investments in the
underlying securities.
 
FOREIGN CURRENCY HEDGING TRANSACTIONS
 
    The Funds may enter into forward foreign currency exchange contracts
("forward contracts"). Forward contracts provide for the purchase or sale of an
amount of a specified foreign currency at a future date. Purposes for which such
contracts may be used include protecting against a decline in a foreign currency
against the U.S. Dollar between the trade date and settlement date when a Fund
purchases or sells securities, locking in the U.S. Dollar value of dividends
declared on securities held by the Fund and generally protecting the U.S. Dollar
value of securities held by the Fund against exchange rate fluctuations. While
such forward contracts may limit losses to a Fund as a result of exchange rate
fluctuations, they will also limit any exchange rate gains that might otherwise
have been realized.
 
    The Emerging Markets, Latin American and International Magnum Funds may also
enter into foreign currency futures contracts. A foreign currency futures
contract is a standardized contract for the future delivery of a specified
amount of a foreign currency at a future date at a price set at the time of the
contract. Foreign currency futures contracts traded in the U.S. are traded on
regulated exchanges. Parties to a futures contract must make initial "margin"
deposits to secure performance of the contract, which generally range from 2% to
5% of the contract price. There also are requirements to make "variation" margin
deposits as the value of the futures contract fluctuates. Such Funds may not
enter into foreign currency futures contracts if the aggregate amount of initial
margin deposits on a Fund's futures positions, including stock index futures
contracts and, in the case of the Latin American Fund, interest rate futures
contracts (which are discussed below), would exceed 5% of the value of the
Fund's total assets. The Funds also will be required to segregate assets to
cover their futures contracts obligations.
 
    At the maturity of a forward or futures contract, a Fund may either accept
or make delivery of the currency specified in the contract or, prior to
maturity, enter into a closing purchase transaction involving the purchase or
sale of an offsetting contract. Closing purchase transactions with respect to
forward contracts are usually effected with the currency trader who is a party
to the original forward contract. Closing purchase transactions with respect to
futures contracts are effected on an exchange. The Funds will only enter into
such a forward or futures
 
                                       28
<PAGE>
contract if it is expected that there will be a liquid market in which to close
out such contract. There can, however, be no assurance that such a liquid market
will exist in which to close a forward or futures contract, in which case a Fund
may suffer a loss.
 
    The Emerging Markets, Latin American and International Magnum Funds may
attempt to accomplish objectives similar to those described above with respect
to forward and futures contracts for currency by means of purchasing put or call
options on foreign currencies on exchanges. A put option gives such Funds the
right to sell a currency at the exercise price until the expiration of the
option. A call option gives the Fund the right to purchase a currency at the
exercise price until the expiration of the option.
 
    Each Fund's custodian will place cash or other liquid assets into a
segregated account of the Fund in an amount equal to the value of such Fund's
total assets committed to the consummation of forward foreign currency exchange
contracts. If the value of the securities placed in the segregated account
declines, additional cash or liquid assets will be placed in the account on a
daily basis so that the value of the account will be at least equal to the
amount of such Fund's commitments with respect to such contracts.
 
FOREIGN INVESTMENT
 
    Each of the Funds may invest in securities of foreign issuers. Investment in
securities of foreign issuers, especially in securities of issuers in emerging
countries, involves somewhat different investment risks from those affecting
securities of U.S. issuers. There may be limited publicly available information
with respect to foreign issuers, and foreign issuers are not generally subject
to uniform accounting, auditing, and financial and other reporting standards and
requirements comparable to those applicable to domestic companies. Therefore,
disclosure of certain material information may not be made and less information
may be available to investors investing in foreign countries than in the United
States. There may also be less government supervision and regulation of foreign
securities exchanges, brokers and listed companies than in the United States.
Many foreign securities markets have substantially less volume than U.S.
national securities exchanges, and securities of some foreign issuers are less
liquid and subject to greater price volatility than securities of comparable
domestic issuers. Brokerage commissions and other transaction costs on foreign
securities exchanges are generally higher than in the United States. Dividends
and interest paid by foreign issuers may be subject to withholding and other
foreign taxes, which may decrease the net return on foreign investments as
compared to dividends and interest paid to the Funds by domestic companies.
Additional risks include future adverse political and economic developments, the
possibility that a foreign jurisdiction might impose or change withholding taxes
on income payable with respect to foreign securities, possible seizure,
nationalization or expropriation of the foreign issuer or foreign deposits, and
the possible adoption of foreign governmental restrictions such as exchange
controls. Also, it may be more difficult to obtain a judgment in a court outside
the United States. Emerging countries may have less stable political
environments than more developed countries.
 
    Investments in securities of foreign issuers are frequently denominated in
foreign currencies, and a Fund may temporarily hold uninvested reserves in bank
deposits in foreign currencies. Therefore, the value of a Fund's assets measured
in U.S. Dollars may be affected favorably or unfavorably by changes in currency
exchange rates and exchange control regulations. Each Fund will also incur
certain costs in connection with conversions between various currencies.
 
                                       29
<PAGE>
INVESTMENT COMPANIES
 
    A Fund may invest in securities of another open-end or closed-end investment
company, by purchase in the open market involving only customary brokers'
commissions or in connection with mergers, acquisitions of assets or
consolidations and as may otherwise be permitted by the 1940 Act.
 
    Some emerging market countries have laws and regulations that currently
preclude direct foreign investment in the securities of their companies.
However, indirect foreign investment in the securities of companies listed and
traded on the stock exchanges in these countries is permitted by certain
emerging market countries through investment funds which have been specifically
authorized. Certain of the Funds may invest in these as well as other investment
companies, subject to applicable provisions of the Investment Company Act of
1940, as amended, (the "1940 Act") and other applicable laws. If a Fund invests
in such investment companies, the Fund's shareholders will bear not only their
proportionate share of the expenses of the Fund (including operating expenses
and the fees of the Adviser), but also will indirectly bear similar expenses of
the underlying investment funds.
 
    Certain of the investment companies referred to in the preceding paragraph
are advised by the Adviser. A Fund may, to the extent permitted under the 1940
Act and other applicable law, invest in these investment companies. If the Fund
does elect to make an investment in such an investment company, it will only
purchase the securities of such investment company in the secondary market.
 
LOANS OF PORTFOLIO SECURITIES
 
    Each Fund may lend its portfolio securities to brokers, dealers, domestic
and foreign banks or other financial institutions for the purpose of increasing
its net investment income. These loans must be secured continuously by cash or
equivalent collateral or by a letter of credit at least equal to the market
value of the securities loaned plus accrued interest. The Funds will not enter
into securities loan transactions exceeding in the aggregate 33 1/3% of the
market value of a Fund's total assets (exceeding in the aggregate 20% of such
value with respect to the Latin American Fund). As with other extensions of
credit, there are risks of delay in recovery or even loss of rights in
collateral should the borrower of the portfolio securities fail financially.
 
LOWER RATED AND UNRATED DEBT SECURITIES
 
    The Emerging Markets and Latin American Funds may invest in lower rated or
unrated debt securities, commonly referred to as "junk bonds." In addition, the
emerging country debt securities in which such Funds may invest are subject to
risk and will not be required to meet a minimum rating standard and may not be
rated. Fixed income securities are subject to the risk of an issuer's inability
to meet principal and interest payments on the obligations (credit risk) and may
also be subject to price volatility due to such factors as interest rate
sensitivity, market perception of the creditworthiness of the issuer and general
market liquidity (market risk). Lower rated or unrated securities are more
likely to react to developments affecting market and credit risk than are more
highly rated securities, which react primarily to movements in the general level
of interest rates. The market values of fixed-income securities tend to vary
inversely with the level of interest rates. Yields and market values of lower
rated and unrated debt securities will fluctuate over time, reflecting not only
changing interest rates but the market's perception of credit quality and the
outlook for economic growth. When economic conditions appear to be
deteriorating, medium to lower rated securities may decline in value due to
heightened concern over credit quality, regardless of prevailing interest rates.
Fluctuations in the value of a Fund's investments will be reflected in the
Fund's net asset value per share. The Sub-Adviser considers both credit risk
 
                                       30
<PAGE>
and market risk in making investment decisions for a Fund. Investors should
carefully consider the relative risks of investing in lower rated and unrated
debt securities and understand that such securities are not generally meant for
short-term investing.
 
    The U.S. corporate lower rated and unrated debt securities market is
relatively new and its recent growth paralleled a long period of economic
expansion and an increase in merger, acquisition and leveraged buyout activity.
Adverse economic developments may disrupt the market for U.S. corporate lower
rated and unrated debt securities and for international and emerging country
debt securities. Such disruptions may severely affect the ability of issuers,
especially highly leveraged issuers, to service their debt obligations or to
repay their obligations upon maturity. In addition, the secondary market for
lower rated and unrated debt securities, which is concentrated in relatively few
market makers, may not be as liquid as the secondary market for more highly
rated securities. As a result, the Sub-Adviser could find it more difficult to
sell these securities or may be able to sell the securities only at prices lower
than if such securities were widely traded. In addition, there may be limited
trading markets for debt securities of issuers located in emerging countries.
Prices realized upon the sale of such lower rated or unrated securities, under
these circumstances, may be less than the prices used in calculating a Fund's
net asset value.
 
    Prices for lower rated and unrated debt securities may be affected by
legislative and regulatory developments. These laws could adversely affect a
Fund's net asset value and investment practices, the secondary market for lower
rated and unrated debt securities, the financial condition of issuers of such
securities and the value of outstanding lower rated and unrated debt securities.
For example, U.S. federal legislation requiring the divestiture by federally
insured savings and loan associations of their investments in lower rated and
unrated debt securities and limiting the deductibility of interest by certain
corporate issuers of lower rated and unrated debt securities adversely affected
the market in recent years.
 
    Lower rated or unrated debt obligations also present risks based on payment
expectations. If an issuer calls the obligations for redemption, a Fund may have
to replace the security with a lower yielding security, resulting in a decreased
return for investors. If a Fund experiences unexpected net redemptions, it may
be forced to sell its higher rated securities, resulting in a decline in the
overall credit quality of the Fund's investment portfolio and increasing the
exposure of the Fund to the risks of lower rated and unrated debt securities.
 
MONEY MARKET INSTRUMENTS
 
    Each Fund is permitted to invest in money market instruments for liquidity
and temporary defensive purposes, although the Funds intend to stay invested in
securities satisfying their primary investment objective to the extent
practical. The Funds may make money market investments pending other investment
or settlement for liquidity or in adverse market conditions. The money market
investments permitted for the Funds include obligations of the U.S. Government,
its agencies and instrumentalities, obligations of foreign sovereignties and
other debt securities, including high-grade commercial paper, repurchase
agreements and bank obligations, such as bankers' acceptances and certificates
of deposit (including Eurodollar certificates of deposit).
 
NON-PUBLICLY TRADED SECURITIES, PRIVATE PLACEMENTS AND RESTRICTED SECURITIES
 
    Each Fund, except the Japanese Equity Fund, may invest in securities that
are neither listed on a stock exchange nor traded over the counter. Such
unlisted securities may involve a higher degree of business and financial risk
that can result in substantial losses. As a result of the absence of a public
trading market for these securities, they may be less liquid than publicly
traded securities. Although these securities may be resold in
 
                                       31
<PAGE>
privately negotiated transactions, the prices realized from these sales could be
less than those originally paid by the Funds or less than what may be considered
the fair value of such securities. Furthermore, companies whose securities are
not publicly traded may not be subject to the disclosure and other investor
protection requirements which might be applicable if their securities were
publicly traded. If such securities are required to be registered under the
securities laws of one or more jurisdictions before being resold, a Fund may be
required to bear the expenses of registration. A Fund may not invest more than
15% of its net assets in illiquid securities nor, with the exception of the
Global Equity Fund, more than 10% of its total assets in securities subject to
legal or contractual restrictions on resale. Securities that are restricted from
sale to the public without registration ("Restricted Securities") under the
Securities Act of 1933, as amended (the "1933 Act"), which can be offered and
sold to qualified institutional buyers under Rule 144A under the 1933 Act ("Rule
144A Securities") may be determined to be liquid under guidelines adopted by,
and subject to the supervision of, the Board of Directors. Rule 144A securities
may become illiquid if qualified institutional buyers are not interested in
acquiring the securities.
 
REPURCHASE AGREEMENTS
 
    Each Fund may enter into repurchase agreements with investment dealers or
financial institutions that meet the credit guidelines of the Company's Board of
Directors. In a repurchase agreement, a Fund buys a security from a seller that
has agreed to repurchase it at a mutually agreed upon date and price, reflecting
the interest rate effective for the term of the agreement. The term of these
agreements is usually from overnight to one week and never exceeds one year. A
repurchase agreement may be viewed as a fully collateralized loan of money by a
Fund to the seller. The Funds always receive securities as collateral with a
market value at least equal to the purchase price, including accrued interest,
and this value is maintained during the term of the agreement. If the seller
defaults and the collateral value declines, a Fund might incur a loss. If
bankruptcy proceedings are commenced with respect to the seller, the Fund's
realization upon the collateral may be delayed or limited. Repurchase agreements
with durations (or maturities) over seven days in length are considered to be
illiquid securities.
 
REVERSE REPURCHASE AGREEMENTS
 
    The Latin American and Global Equity Funds may enter into reverse repurchase
agreements with brokers, dealers, domestic and foreign banks or other financial
institutions that have been determined by the Sub-Adviser to be creditworthy. In
a reverse repurchase agreement, a Fund sells a security and agrees to repurchase
it at a mutually agreed upon date and price, reflecting the interest rate
effective for the term of the agreement. It may also be viewed as the borrowing
of money by the Fund. The Fund's investment of the proceeds of a reverse
repurchase agreement is the speculative factor known as leverage. The Fund will
enter into a reverse repurchase agreement only if the interest income from
investment of the proceeds is expected to be greater than the interest expense
of the transaction and the proceeds are invested for a period no longer than the
term of the agreement. The Fund will maintain with the appropriate custodian a
separate account with a segregated portfolio of cash or liquid assets in an
amount at least equal to its purchase obligations under these agreements
(including accrued interest). If interest rates rise during a reverse repurchase
agreement, it may adversely affect the Fund's net asset value. In the event that
the buyer of securities under a reverse repurchase agreement files for
bankruptcy or becomes insolvent, the buyer or its trustee or receiver may
receive an extension of time to determine whether to enforce the Fund's
repurchase obligation, and the Fund's use of proceeds of the agreement may
effectively be restricted pending such decision.
 
                                       32
<PAGE>
RUSSIAN SECURITIES TRANSACTIONS
 
    The Emerging Markets Fund may invest in equity securities of Russian
companies. The registration, clearing and settlement of securities transactions
in Russia are subject to significant risks not normally associated with
securities transactions in the United States and other more developed markets.
Ownership of shares in Russian companies is evidenced by entries in a company's
share register (except where shares are held through depositories that meet the
requirements of the 1940 Act) and the issuance of extracts from the register or,
in certain limited cases, by formal share certificates. However, Russian share
registers are frequently unreliable and the Fund could possibly lose its
registration through oversight, negligence or fraud. Moreover, Russia lacks a
centralized registry to record securities transactions and registrars located
throughout Russia or the companies themselves maintain share registers.
Registrars are under no obligation to provide extracts to potential purchasers
in a timely manner or at all and are not necessarily subject to effective state
supervision. In addition, while registrars are liable under law for losses
resulting from their errors, it may be difficult for the Fund to enforce any
rights it may have against the registrar or issuer of the securities in the
event of loss of share registration. Although Russian companies with more than
1,000 shareholders are required by law to employ an independent company to
maintain share registers, in practice, such companies have not always followed
this law. Because of this lack of independence of registrars, management of a
Russian company may be able to exert considerable influence over who can
purchase and sell the company's shares by illegally instructing the registrar to
refuse to record transactions on the share register. Furthermore, these
practices may prevent the Fund from investing in the securities of certain
Russian companies deemed suitable by the Sub-Adviser and could cause a delay in
the sale of Russian securities by the Fund if the company deems a purchaser
unsuitable, which may expose the Fund to potential loss on its investment.
 
    In light of the risks described above, the Board of Directors of the
Emerging Markets Fund has approved certain procedures concerning the Fund's
investments in Russian securities. Among these procedures is a requirement that
the Fund will not invest in the securities of a Russian company unless that
issuer's registrar has entered into a contract with the Fund's sub-custodian
containing certain protective conditions, including, among other things, the
sub-custodian's right to conduct regular share confirmations on behalf of the
Fund. This requirement will likely have the effect of precluding investments in
certain Russian companies that the Fund would otherwise make.
 
SHORT SALES
 
    The Emerging Markets and Latin American Funds may from time to time sell
securities short without limitation, although neither of such Funds intends to
sell securities short on a regular basis. A short sale is a transaction in which
a Fund sells securities it either owns or has the right to acquire at no added
cost (i.e., "against the box") or it does not own (but has borrowed) in
anticipation of a decline in the market price of the securities. When a Fund
makes a short sale of borrowed securities, the proceeds it receives from the
sale will be held on behalf of a broker until the Fund replaces the borrowed
securities. To deliver the securities to the buyer, a Fund will need to arrange
through a broker to borrow the securities and, in so doing, the Fund will become
obligated to replace the securities borrowed at their market price at the time
of replacement, whatever that price may be. A Fund may have to pay a premium to
borrow the securities and must pay any dividends or interest payable on the
securities until they are replaced.
 
                                       33
<PAGE>
    A Fund's obligation to replace the securities borrowed in connection with a
short sale will be secured by collateral deposited with the broker that consists
of cash or liquid assets. In addition, the Fund will place in a segregated
account with the appropriate custodian an amount of cash or liquid assets equal
to the difference, if any, between (1) the market value of the securities sold
at the time they were sold short and (2) any cash, U.S. Government securities or
other liquid high grade debt obligations deposited as collateral with the broker
in connection with the short sale (not including the proceeds of the short
sale). Short sales by a Fund involve certain risks and special considerations.
Possible losses from short sales differ from losses that could be incurred from
a purchase of a security, because losses from short sales may be unlimited,
whereas losses from purchases can equal only the total amount invested.
 
TEMPORARY INVESTMENTS
 
    For temporary defensive purposes, when the Sub-Adviser determines that
market conditions warrant, each Fund may invest up to 100% of its assets in
money market instruments and short- and medium-term debt securities that the
Sub-Adviser believes to be of high quality, or hold cash. See "Investment
Objectives and Policies" above for further information about each Fund's
policies.
 
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES
 
    Each Fund may purchase securities on a when-issued or delayed delivery
basis. In such transactions, instruments are bought with payment and delivery
taking place in the future in order to secure what is considered to be an
advantageous yield or price at the time of the transaction. Delivery of and
payment for these securities may take as long as a month or more after the date
of the purchase commitment but will take place no more than 120 days after the
trade date. Each Fund will maintain with the appropriate Custodian a separate
account with a segregated portfolio of cash or liquid securities in an amount at
least equal to these commitments. The payment obligation and the interest rates
that will be received are each fixed at the time a Fund enters into the
commitment, and no interest accrues to the Fund until settlement. Thus, it is
possible that the market value at the time of settlement could be higher or
lower than the purchase price if the general level of interest rates has
changed. It is a current policy of each of the Funds, other than the Global
Equity Fund, not to enter into when-issued commitments or delayed delivery
securities exceeding, in the aggregate, 15% of a Fund's net assets other than
the obligations created by these commitments.
 
ZERO COUPONS; PAY-IN-KIND; DEFERRED PAYMENT SECURITIES
 
    The Funds may invest in zero coupon securities, which are securities that
are sold at a discount to par value and on which interest payments are not made
during the life of the security. Upon maturity, the holder is entitled to
receive the par value of the security. While interest payments are not made on
such securities, holders of such securities are deemed to have received annually
"phantom income." Because the Fund will distribute its "phantom income" to
shareholders, to the extent that shareholders elect to receive dividends in cash
rather than reinvesting such dividends in additional shares, the Fund will have
fewer assets with which to purchase income producing securities. The Fund
accrues income with respect to these securities prior to the receipt of cash
payments. Pay-in-kind securities are securities that have interest payable by
delivery of additional securities. Upon maturity, the holder is entitled to
receive the aggregate par value of the securities. Deferred payment securities
are securities that remain zero coupon securities until a predetermined date, at
which time the stated coupon rate becomes effective and interest becomes payable
at regular intervals. Zero coupon, pay-in-kind and deferred payment securities
may be subject to greater fluctuation in value and lesser liquidity in the event
of
 
                                       34
<PAGE>
adverse market conditions than comparably rated securities paying cash interest
at regular interest payment periods.
 
DERIVATIVE INSTRUMENTS
 
    The Funds are permitted to invest in various derivative instruments for both
hedging and non-hedging purposes. Derivative instruments include options,
futures and options on futures, structured notes, caps, floors, collars and
swaps. Additionally, the Funds may invest in other derivative instruments that
are developed over time if their use would be consistent with the objectives of
the Funds. Each Fund, other than the Global Equity Fund (as described below),
will limit its use of the foregoing derivative instruments for non-hedging
purposes to 33 1/3% of its total assets measured by the aggregate notional
amount of outstanding derivative instruments. In addition, no Fund, other than
the Global Equity Fund, will enter into futures contracts and options on futures
contracts to the extent that the notional value of its outstanding obligations
to purchase securities under such contracts would exceed 20% of its total
assets. The Global Equity Fund will limit its use of the foregoing derivative
instruments to 50% of its total assets measured by the aggregate notional amount
of outstanding derivative instruments, provided that no more than 33 1/3% of its
total assets are invested, for non-hedging purposes, in derivatives other than
futures and options on futures. The Funds' investments in forward foreign
currency contracts and derivatives used for hedging purposes are not subject to
the limits described above.
 
    The Funds may use derivatives instruments under a number of different
circumstances to further their investment objectives. The Funds may use
derivatives when doing so provides more liquidity than the direct purchase of
the securities underlying such derivatives. For example, a Fund may purchase
derivatives to quickly gain exposure to a market in response to changes in the
Fund's asset allocation policy or upon the inflow of investable cash when the
derivative provides greater liquidity than the underlying securities market. A
Fund may also use derivatives when it is restricted from directly owning the
underlying securities due to foreign investment restrictions or other reasons or
when doing so provides a price advantage over purchasing the underlying
securities directly, either because of a pricing differential between the
derivatives and securities markets or because of lower transaction costs
associated with the derivatives transaction. Derivatives may also be used by a
Fund for hedging purposes and under other circumstances in which a Fund's
portfolio managers believe it advantageous to do so consistent with the Fund's
investment objective. The Funds will not, however, use derivatives in a manner
that creates leverage, except to the extent that the use of leverage is
expressly permitted by a particular Fund's investment policies, and then only in
a manner consistent with such policies.
 
    Some of the derivative instruments in which the Funds may invest and the
risks related thereto are described in more detail below.
 
CAPS, FLOORS AND COLLARS
 
    The Funds may invest in caps, floors and collars, which are instruments
analogous to options. In particular, a cap is the right to receive the excess of
a reference rate over a given rate and is analogous to a put option. A floor is
the right to receive the excess of a given rate over a reference rate and is
analogous to a call option. Finally, a collar is an instrument that combines a
cap and a floor. That is, the buyer of a collar buys a cap and writes a floor,
and the writer of a collar writes a cap and buys a floor. The risks associated
with caps, floors and collars are similar to those associated with options. In
addition, caps, floors and collars are subject to risk of default by the
counterparty because they are privately negotiated instruments.
 
                                       35
<PAGE>
FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS
 
    The Funds may purchase and sell futures contracts and options on futures
contracts, including but not limited to securities index futures, foreign
currency exchange futures, interest rate futures contracts and other financial
futures. Futures contracts provide for the sale by one party and purchase by
another party of a specified amount of a specific security, instrument or basket
thereof, at a specific future date and at a specified price. An option on a
futures contract is a legal contract that gives the holder the right to buy or
sell a specified amount of futures contracts at a fixed or determinable price
upon the exercise of the option.
 
    The Funds may sell securities index futures contracts and/or options thereon
in anticipation of or during a market decline to attempt to offset the decrease
in market value of investments in its portfolio, or purchase securities index
futures in order to gain market exposure. Subject to applicable laws, the Funds
may engage in transactions in securities index futures contracts (and options
thereon) which are traded on a recognized securities or futures exchange, or may
purchase or sell such instruments in the over-the-counter market. There
currently are limited securities index futures and options on such futures in
many countries, particularly emerging countries. The nature of the strategies
adopted by the Adviser, and the extent to which those strategies are used, may
depend on the development of such markets.
 
    The Funds may engage in transactions involving foreign currency exchange
futures contracts. Such contracts involve an obligation to purchase or sell a
specific currency at a specified future date and at a specified price. The Funds
may engage in such transactions to hedge their respective holdings and
commitments against changes in the level of future currency rates or to adjust
their exposure to a particular currency.
 
    The Funds may engage in transactions in interest rate futures transactions.
Interest rate futures contracts involve an obligation to purchase or sell a
specific debt security, instrument or basket thereof at a specified future date
at a specified price. The value of the contract rises and falls inversely with
changes in interest rates. The Funds may engage in such transactions to hedge
their holdings of debt instruments against future changes in interest rates.
 
    Financial futures are futures contracts relating to financial instruments,
such as U.S. Government securities, foreign currencies and certificates of
deposit. Such contracts involve an obligation to purchase or sell a specific
security, instrument or basket thereof at a specified future date at a specified
price. Like interest rate futures contracts, the value of financial futures
contracts rises and falls inversely with changes in interest rates. The Funds
may engage in financial futures contracts for hedging and non-hedging purposes.
 
    Under rules adopted by the Commodity Futures Trading Commission, each Fund
may enter into futures contracts and options thereon for both hedging and
non-hedging purposes, provided that not more than 5% of such Fund's total assets
at the time of entering the transaction are required as margin and option
premiums to secure obligations under such contracts relating to non-hedging
activities.
 
    Gains and losses on futures contracts and options thereon depend on the
Adviser's ability to predict correctly the direction of securities prices,
interest rates and other economic factors. Other risks associated with the use
of futures and options are (i) imperfect correlation between the change in
market value of investments held by a Fund and the prices of futures and options
relating to investments purchased or sold by the Fund, and (ii) possible lack of
a liquid secondary market for a futures contract and the resulting inability to
close a futures position. The risk that a Fund will be unable to close out a
futures position or options contract will be minimized by only entering into
futures contracts or options transactions for which there appears to be a liquid
exchange or
 
                                       36
<PAGE>
secondary market. The risk of loss in trading on futures contracts in some
strategies can be substantial, due both to the low margin deposits required and
the extremely high degree of leverage involved in futures pricing.
 
OPTIONS TRANSACTIONS
 
    The Funds may seek to increase their returns or may hedge their portfolio
investments through options transactions with respect to securities,
instruments, indices or baskets thereof in which such Funds may invest, as well
as with respect to foreign currency. Purchasing a put option gives a Fund the
right to sell a specified security, currency or basket of securities or
currencies at the exercise price until the expiration of the option. Purchasing
a call option gives a Fund the right to purchase a specified security, currency
or basket of securities or currencies at the exercise price until the expiration
of the option.
 
    Each Fund also may write (i.e., sell) put and call options on investments
held in its portfolio, as well as with respect to foreign currency. A Fund that
has written an option receives a premium, which increases the Fund's return on
the underlying security or instrument in the event the option expires
unexercised or is closed out at a profit. However, by writing a call option, a
Fund will limit its opportunity to profit from an increase in the market value
of the underlying security or instrument above the exercise price of the option
for as long as the Fund's obligation as writer of the option continues. The
Funds may only write options that are "covered." A covered call option means
that so long as the Fund is obligated as the writer of the option, it will
earmark or segregate sufficient liquid assets to cover its obligations under the
option or own (i) the underlying security or instrument subject to the option,
(ii) securities or instruments convertible or exchangeable without the payment
of any consideration into the security or instrument subject to the option, or
(iii) a call option on the same underlying security with a strike price no
higher than the price at which the underlying instrument was sold pursuant to a
short option position.
 
    By writing (or selling) a put option, a Fund incurs an obligation to buy the
security or instrument underlying the option from the purchaser of the put at
the option's exercise price at any time during the option period, at the
purchaser's election. The Funds may also write options that may be exercisable
by the purchaser only on a specific date. A Fund that has written a put option
will earmark or segregate sufficient liquid assets to cover its obligations
under the option or will own a put option on the same underlying security with
an equal or higher strike price.
 
    The Funds may engage in transactions in options which are traded on
recognized exchanges or over-the-counter. There currently are limited options
markets in many countries, particularly emerging countries such as Latin
American countries, and the nature of the strategies adopted by the Adviser and
the extent to which those strategies are used will depend on the development of
such options markets. The primary risks associated with the use of options are
(i) imperfect correlation between the change in market value of investments
held, purchased or sold by a Fund and the prices of options relating to such
investments, and (ii) possible lack of a liquid secondary market for an option.
 
STRUCTURED NOTES
 
    Structured Notes are derivatives on which the amount of principal repayment
and/or interest payments is based upon the movement of one or more factors.
These factors include, but are not limited to, currency exchange rates, interest
rates (such as the prime lending rate and LIBOR) and stock indices such as the
S&P 500 Index. In some cases, the impact of the movements of these factors may
increase or decrease through the use of
 
                                       37
<PAGE>
multipliers or deflators. The Funds may use structured notes to tailor their
investments to the specific risks and returns the Adviser wishes to accept while
avoiding or reducing certain other risks.
 
SWAPS -- SWAP CONTRACTS
 
    Swaps and Swap Contracts are derivatives in the form of a contract or other
similar instrument in which two parties agree to exchange the returns generated
by a security, instrument, basket thereof or index for the returns generated by
another security, instrument, basket thereof or index. The payment streams are
calculated by reference to a specific security, index or instrument and an
agreed upon notional amount. The relevant indices include but are not limited
to, currencies, fixed interest rates, prices and total return on interest rate
indices, fixed income indices, stock indices and commodity indices (as well as
amounts derived from arithmetic operations on these indices). For example, a
Fund may agree to swap the return generated by a fixed income index for the
return generated by a second fixed-income index. The currency swaps in which the
Funds may enter will generally involve an agreement to pay interest streams in
one currency based on a specified index in exchange for receiving interest
streams denominated in another currency. Such swaps may involve initial and
final exchanges that correspond to the agreed upon notional amount.
 
    A Fund will usually enter into swaps on a net basis, i.e., the two return
streams are netted out in a cash settlement on the payment date or dates
specified in the instrument, with a Fund receiving or paying, as the case may
be, only the net amount of the two returns. A Fund's obligations under a swap
agreement will be accrued daily (offset against any amounts owing to the Fund)
and any accrued, but unpaid, net amounts owed to a swap counterparty will be
covered by the maintenance of a segregated account consisting of cash or liquid
securities. A Fund will not enter into any swap agreement unless the
counterparty meets the rating requirements set forth in guidelines established
by the Company's Board of Directors.
 
    Interest rate and total rate of return swaps do not involve the delivery of
securities, other underlying assets, or principal. Accordingly, the risk of loss
with respect to interest rate and total rate of return swaps is limited to the
net amount of payments that a Fund is contractually obligated to make. If the
other party to an interest rate or total rate of return swap defaults, a Fund's
risk of loss consists of the net amount of payments that the Fund is
contractually entitled to receive. In contrast, currency swaps may involve the
delivery of the entire principal value of one designated currency in exchange
for the other designated currency. Therefore, the entire principal value of a
currency swap may be subject to the risk that the other party to the swap will
default on its contractual delivery obligations. If there is a default by the
counterparty, a Fund may have contractual remedies pursuant to the agreements
related to the transaction. The swaps market has grown substantially in recent
years with a large number of banks and investment banking firms acting both as
principals and as agents utilizing standardized swap documentation. As a result,
the swaps market has become relatively liquid. Swaps that include caps, floors
and collars are more recent innovations for which standardized documentation has
not yet been fully developed and, accordingly, they are less liquid than
"traditional" swaps.
 
    The use of swaps is a highly specialized activity which involves investment
techniques and risks different from those associated with ordinary portfolio
securities transactions. If the Adviser is incorrect in its forecasts of market
values, interest rates and currency exchange rates, the investment performance
of the Funds would be less favorable than it would have been if this investment
technique were not used.
 
                                       38
<PAGE>
                             INVESTMENT LIMITATIONS
 
    Each Fund, except the Emerging Markets, Latin American and International
Magnum Funds, is a diversified investment company under the 1940 Act, and is
subject to the following limitations as to 75% of its total assets: (a) the Fund
may not invest more than 5% of its total assets in the securities of any one
issuer, except obligations of the U.S. Government, and its agencies and
instrumentalities, and (b) the Fund may not own more than 10% of the outstanding
voting securities of any one issuer. The Emerging Markets, Latin American and
International Magnum Funds are non-diversified investment companies under the
1940 Act, which means that each of such Funds is not limited by the 1940 Act in
the proportion of its total assets that may be invested in the obligations of a
single issuer. Thus, each of such Funds may invest a greater proportion of its
total assets in the securities of a smaller number of issuers and, as a result,
will be subject to greater risk resulting from such concentration of its
portfolio securities. Each of such Funds, however, intends to comply with the
diversification requirements imposed by the Internal Revenue Code of 1986, as
amended (the "Code"), for qualification as a regulated investment company.
 
                           MANAGEMENT OF THE COMPANY
 
    INVESTMENT ADVISER.  Van Kampen American Capital Investment Advisory Corp.
("VK Advisory," or the "Adviser") is the investment adviser and administrator of
the Funds. The Adviser provides investment advice and portfolio management
services pursuant to an advisory agreement (the "Advisory Agreement") and
subject to the supervision of the Company's Board of Directors, makes the Funds'
investment decisions, arranges for the execution of portfolio transactions and
generally manages the Funds' investments. The Advisory Agreement also provides
that VK Advisory may appoint sub-advisers to perform these portfolio management
responsibilities. See "Investment Sub-Adviser" below. The Adviser is entitled to
receive an aggregate advisory fee computed daily and paid monthly at the
following annual rates for each Fund:
 
<TABLE>
<S>                                                                           <C>
Asian Growth Fund...........................................................       1.00%
Emerging Markets Fund.......................................................       1.25%
Global Equity Fund..........................................................       1.00%
Global Equity Allocation Fund...............................................       1.00%
International Magnum Fund...................................................       0.80%
Japanese Equity Fund........................................................       1.00%
Latin American Fund.........................................................       1.25%
</TABLE>
 
    The Adviser has agreed to a reduction in the fees payable to it and to
reimburse expenses to the applicable Fund, if necessary, if such fees or
expenses would cause total annual operating expenses of the Fund to exceed the
maximums set forth in "Fund Expenses."
 
    The Adviser is a wholly-owned subsidiary of Van Kampen American Capital,
Inc. ("Van Kampen American Capital"). Van Kampen American Capital is a
diversified asset management company with more than two million retail investor
accounts, extensive capabilities for managing institutional portfolios, and more
than $57 billion under management or supervision. Van Kampen American Capital's
more than 40 open-end and 38 closed-end funds and more than 2,500 unit
investment trust are professionally distributed by leading financial advisers
nationwide. The Distributor of the Company and the sponsor of the funds
mentioned above, is also a wholly-owned subsidiary of Van Kampen American
Capital.
 
                                       39
<PAGE>
    Van Kampen American Capital is a wholly-owned subsidiary of VK/AC Holding,
Inc. VK/AC Holding, Inc. is a wholly-owned subsidiary of MSAM Holdings II, Inc.
which, in turn, is a wholly-owned subsidiary of Morgan Stanley Dean Witter,
Discover & Co. The Adviser's principal office is located at One Parkview Plaza,
Oakbrook Terrace, Illinois 60181.
 
    On May 31, 1997, Morgan Stanley Group Inc. and Dean Witter, Discover & Co.
merged to form Morgan Stanley, Dean Witter, Discover & Co. Prior thereto, Morgan
Stanley Group Inc. was the parent of the Adviser, Sub-Advisers and Distributor.
The Adviser, Sub-Advisers and Distributor are now subsidiaries of Morgan
Stanley, Dean Witter, Discover & Co.
 
    Morgan Stanley, Dean Witter, Discover & Co. and various of its directly or
indirectly owned subsidiaries, including Morgan Stanley & Co. Incorporated, a
registered broker-dealer and investment adviser, and Morgan Stanley
International are engaged in a wide range of financial services. Their principal
businesses include securities underwriting, distribution and trading; merger,
acquisition, restructuring and other corporate finance advisory activities;
merchant banking, stock brokerage and research services; asset management;
trading of futures, option, foreign exchange commodities and swaps (including
foreign exchange, commodities, indices and interest rates); real estate advice,
financing and investing; and global custody, securities clearance services and
securities lending; and credit services.
 
    INVESTMENT SUB-ADVISER.  Morgan Stanley Asset Management Inc. ("MSAM," or a
"Sub-Adviser") is the investment sub-adviser of the Funds. The Sub-Adviser
provides investment advice and portfolio management services pursuant to an
investment sub-advisory agreement (the "Investment Advisory Agreement") and,
subject to the supervision of the Adviser and the Company's Board of Directors,
makes the Funds' investment decisions, arranges for the execution of portfolio
transactions and generally manages the Funds' investments.
 
    The Sub-Adviser is entitled to receive sub-advisory fees computed daily and
paid quarterly at the following rates for the Funds. If the average daily net
assets of a Fund during the monthly period are less than or equal to $500
million, VK Advisory shall pay MSAM one-half of the total investment advisory
fee payable to VK Advisory by the Fund (after application of any fee waivers in
effect) for such monthly period. If a Fund's average daily net assets for the
monthly period are greater than $500 million, VK Advisory shall pay MSAM a fee
for such monthly period equal to the greater of (a) one-half of what the total
investment advisory fee payable to VK Advisory by the Fund (after application of
any fee waivers in effect) for such monthly period would have been had the
Fund's average daily net assets during such period been equal to $500 million,
or (b) forty-five percent of the total investment advisory fee payable to VK
Advisory by the Fund (after application of any fee waivers in effect) for such
monthly period.
 
    MSAM, with principal offices at 1221 Avenue of the Americas, New York, NY
10020, conducts a worldwide portfolio management business. It provides a broad
range of portfolio management services to customers in the United States and
abroad. At May 31, 1997, MSAM had approximately $75.1 billion in assets under
management as an investment adviser or as a Named Fiduciary or Fiduciary
Adviser. See "Management of the Company -- Investment Advisory and
Administrative Agreements" in the Statement of Additional Information.
 
                                       40
<PAGE>
    PORTFOLIO MANAGERS -- The following individuals have primary portfolio
management responsibility for the Funds noted below:
 
    ASIAN GROWTH FUND -- EAN WAH CHIN AND SEAH KIAT SENG. Ean Wah Chin is a
Managing Director of the Sub-Adviser and Morgan Stanley and is responsible for
the Sub-Adviser's regional Asia ex-Japan operations based in Singapore. She has
shared primary management responsibility for the Fund since it commenced
operations. Prior to joining Morgan Stanley in 1986, Ms. Chin spent eight years
with the Monetary Authority of Singapore and the Government of Singapore
Investment Corporation, where she was a portfolio manager on one of the largest
portfolios in Asia. Ms. Chin was an ASEAN scholar educated at the University of
Singapore. Seah Kiat Seng joined the Sub-Adviser's Singapore office in 1990 as a
portfolio manager/analyst specializing in the Southeast Asian markets. He is
currently a Vice President, responsible for investments in Thailand. He has
shared primary management responsibility for the Fund since it commenced
operations. Previously, Kiat Seng worked at Barclays de Zoete Wedd (BZW), where
he was a senior investment analyst who helped pioneer BZW's research effort in
Singapore. Kiat Seng is a Chartered Financial Analyst and a qualified real
estate valuer who has worked for the Singapore Ministry of Finance. He was a
Colombo Plan Scholar educated in New Zealand.
 
    EMERGING MARKETS FUND -- MADHAV DHAR AND ROBERT L. MEYER. Madhav Dhar is a
Managing Director of the Sub-Adviser and Morgan Stanley & Co. Incorporated
("Morgan Stanley"). He joined the Sub-Adviser in 1984 to focus on global asset
allocation and investment strategy and now is a co-head of the Sub-Adviser's
emerging markets group. Mr. Dhar has been involved in the launching of the
Sub-Adviser's country funds. He is a portfolio manager of the Emerging Markets
Fund of the Company, the Emerging Markets and Active Country Allocation
Portfolios of Morgan Stanley Institutional Fund, Inc., and Morgan Stanley
Emerging Markets Fund, Inc. (a closed-end investment company listed on the New
York Stock Exchange). He holds a B.S. (honors) from St. Stephens College, Delhi
University (India), and an M.B.A. from Carnegie - Mellon University. Mr. Dhar
has shared primary responsibility for managing the Fund's assets since it
commenced operations. Information about Mr. Meyer is included under the Latin
American Fund below. Mr. Meyer has served as co-portfolio manager of the Fund
since August, 1997.
 
    GLOBAL EQUITY FUND -- FRANCES CAMPION. Frances Campion joined the
Sub-Adviser in January 1990 as a Global Equity Fund Manager and is now a
Principal of Morgan Stanley. Her responsibilities include day to day management
of the Global Equity product. Prior to joining the Sub-Adviser, Ms. Campion was
a U.S. equity analyst with Lombard Odier Limited where she had responsibility
for the management of global portfolios. Ms. Campion has ten years global
investment experience. She is a graduate of University College, Dublin.
 
    GLOBAL EQUITY ALLOCATION FUND -- BARTON M. BIGGS, MADHAV DHAR, FRANCINE J.
BOVICH AND ANN D. THIVIERGE. Barton Biggs has been Chairman and a director of
the Sub-Adviser since 1980 and a Managing Director of Morgan Stanley since 1975.
He is also a director of Morgan Stanley Group Inc. and a director and chairman
of various registered investment companies to which the Sub-Adviser and certain
of its affiliates provide investment advisory services. Mr. Biggs holds a B.A.
from Yale University and an M.B.A. from New York University. Information about
Madhav Dhar is included under the Emerging Markets Fund above. Francine Bovich
joined the Sub-Adviser as a Principal in 1993. She is responsible for portfolio
management and communication of the Sub-Adviser's asset allocation strategy to
institutional investor clients. Previously, Ms. Bovich was a Principal and
Executive Vice President of Westwood Management Corp. ("Westwood"), a registered
investment adviser. Before joining Westwood, she was a Managing Director of
Citicorp Investment Management, Inc. (now Chancellor Capital Management), where
she was responsible for the Institutional
 
                                       41
<PAGE>
Investment Management group. Ms. Bovich began her investment career with
Banker's Trust Company. She holds a B.A. in Economics from Connecticut College
and an M.B.A. in Finance from New York University. Ann Thivierge is a Principal
of the Sub-Adviser. She is a member of the Sub-Adviser's asset allocation
committee, primarily representing the Total Fund Management team since its
inception in 1991. Prior to joining the Sub-Adviser in 1986, she spent two years
at Edgewood Management Company, a privately held investment management firm. Ms.
Thivierge holds a B.A. in International Relations from James Madison College,
Michigan State University, and an M.B.A. in Finance from New York University.
Mr. Biggs, Mr. Dhar, Ms. Bovich and Ms. Thivierge have had primary
responsibility for managing the Fund since it commenced operations.
 
    INTERNATIONAL MAGNUM FUND -- FRANCINE J. BOVICH. Information about Francine
Bovich is included under the Global Equity Allocation Fund above. Ms. Bovich has
had primary responsibility for managing the Fund since it commenced operations.
 
    JAPANESE EQUITY FUND -- DOMINIC CALDECOTT AND KUNIHIKO SUGIO. Mr. Caldecott
is responsible for research and stock selection in the Pacific Basin and has
been primarily responsible for managing the Fund's assets since it commenced
operations. He has ten years professional experience, primarily in Tokyo, Hong
Kong and Seoul. Prior to joining the Sub-Adviser and Morgan Stanley, he worked
with GT Management Group in Tokyo and Hong Kong, specializing in Pacific Basin
investment management. He became a Vice President of the Sub-Adviser and Morgan
Stanley in 1987, a principal in 1989, and a Managing Director in 1991. He is
responsible for a number of Pacific Basin investment programs for clients of
Morgan Stanley. Mr. Caldecott is a graduate of New College, Oxford, England.
Kunihiko Sugio joined the Sub-Adviser in December 1993 as a Vice President and
manages dedicated Japanese equity portfolios. He has been primarily responsible
for managing the Fund's assets since it commenced operations. Prior to joining
Morgan Stanley, he worked with Baring International Investment Management,
Tokyo, where he was a Director and fund manager. He graduated from Wakayama
Kokuritsu University.
 
    LATIN AMERICAN FUND -- ROBERT L. MEYER AND ANDY SKOV. Robert Meyer and Andy
Skov share primary responsibility for managing the Fund's assets. Robert Meyer
joined the Sub-Adviser in 1989 and is now a Managing Director of the Sub-Adviser
and Morgan Stanley. Born in Argentina, Mr. Meyer received a B.A. in Economics
and Political Science from Yale University and a J.D. from Harvard Law School.
Mr. Meyer is also a Chartered Financial Analyst. Andy Skov joined the
Sub-Adviser in 1994 as a Portfolio Manager. Currently, he is a Vice President of
the Sub-Adviser. Prior to joining the Sub-Adviser, he worked in the Latin
America group at Bankers Trust in corporate finance, research and sales; two of
those years he spent in Argentina. He graduated from the University of
California at Berkeley with a B.A. (Phi Beta Kappa) in Political Science and
Economics Development.
 
    ADMINISTRATOR.  The Administrator also provides the Company with
administrative services pursuant to an administration agreement (the
"Administration Agreement"). The services provided under the Administration
Agreement are subject to the supervision of the officers and Board of Directors
of the Company and include day-to-day administration of matters related to the
corporate existence of the Company, maintenance of its records, preparation of
reports, supervision of the Company's arrangements with its custodian and
assistance in the preparation of the Company's registration statements under
federal and state laws. The Administration Agreement also provides that the
Administrator through its agents will provide the Company dividend disbursing
and transfer agent services. For its services under the Administration
Agreement, the Company pays the Administrator a monthly fee which on an annual
basis equals 0.25% of the average daily net assets of the Funds.
 
                                       42
<PAGE>
    Under a sub-administration agreement between the Administrator and The Chase
Manhattan Bank ("Chase"), Chase Global Funds Services Company ("CGFSC"), a
corporate affiliate of Chase, provides certain administrative services to the
Company. The Administrator supervises and monitors such administrative services
provided by CGFSC. The services provided under the sub-administration agreement
are subject to the supervision of the Board of Directors of the Company. The
Board of Directors of the Company has approved the provision of services
described above pursuant to the sub-administration agreement as being in the
best interests of the Company. CGFSC's business address is 73 Tremont Street,
Boston, Massachusetts 02108-3913. For additional information on the
Administration Agreement, see "Management of the Company" in the Statement of
Additional Information.
 
    ADMINISTRATORS FOR THE LATIN AMERICAN FUND.  The Latin American Fund has
entered into an administration agreement (the "Chilean Administration
Agreement") with Bice Chileconsult Agente de Valores S.A. (the "Chilean
Administrator"), a Chilean corporation, pursuant to which the Chilean
Administrator acts as the Fund's legal representative in Chile. Under the
Chilean Administration Agreement, the Chilean Administrator performs various
services for the Fund, including making and obtaining all exchange control
filings and approvals required for the Fund to effect investment and other
transactions in Chile and to remit moneys and other assets outside of Chile,
obtaining from the relevant authorities in Chile all confirmations or consents
relating to the tax status of the Fund and all tax rebates and other payments
which may be due to the Fund, and performing all other administrative duties in
Chile required by Chilean law or Chilean authorities through instructions or
regulations to be performed. For its services, the Chilean Administrator is paid
an annual fee by the Fund equal to the greater of 0.125% of the Fund's average
weekly net assets invested in Chile or $20,000, paid monthly. Unless terminated
by the Company's Board of Directors upon 60 days' prior written notice, or by
the Chilean Administrator upon 90 days' prior written notice, the Chilean
Administration Agreement will continue automatically from year to year.
 
    The Latin American Fund is required under Brazilian law to have a local
administrator in Brazil. Unibanco-Uniao (the "Brazilian Administrator"), a
Brazilian corporation, acts as the Fund's Brazilian administrator pursuant to an
agreement with the Fund (the "Brazilian Administration Agreement"). Under the
Brazilian Administration Agreement, the Brazilian Administrator performs various
services for the Fund, including effecting the registration of the Fund's
foreign capital with the Central Bank of Brazil, effecting all foreign exchange
transactions related to the Fund's investments in Brazil and obtaining all
approvals required for the Fund to make remittances of income and capital gains
and for the repatriation of the Company's investments pursuant to Brazilian law.
For its services, the Brazilian Administrator is paid an annual fee equal to
0.115% of the Fund's average weekly net assets invested in Brazil, paid monthly.
The principal office of the Brazilian Administrator is located at Avenida
Eusebio Matoso, 891, Sao Paulo, S.P., Brazil. The Brazilian Administration
Agreement is terminable upon six months' notice by either party. The Brazilian
Administrator may be replaced only by an entity authorized to act as a joint
manager of a managed portfolio of bonds and securities under Brazilian law.
 
    The Latin American Fund is required under Colombian law to have a local
administrator in Colombia. CitiTrust S.A. (the "Colombian Administrator"), a
Colombian Trust Company, acts as the Fund's Colombian administrator pursuant to
an agreement with the Fund (the "Colombian Agreement"). Under the Colombian
Agreement, the Colombian Administrator performs various services for the Fund,
including effecting the registration of the Fund's foreign capital with the
Central Bank of Colombia, effecting all foreign exchange
 
                                       43
<PAGE>
transactions related to the Fund's investments in Colombia and obtaining all
approvals required for the Fund to make remittances of income and capital gains
and for the repatriation of the Fund's investments pursuant to Colombian law.
For its services, the Colombian Administrator is paid an annual fee of $1,000
plus .20% per transaction. The principal office of the Colombian Administrator
is located at Sociedad Fiduciaria International S.A., 8-89, Piso 2, Santa Fe de
Bogota, Colombia. The Colombian Agreement is terminable upon 30 days' notice by
either party. The Colombian Administrator may be replaced only by an entity
authorized to act as a joint manager of a managed portfolio of bonds and
securities under Colombian law.
 
    DIRECTORS AND OFFICERS.  Pursuant to the Company's Articles of
Incorporation, the Board of Directors decides upon matters of general policy and
reviews the actions of the Company's Adviser, Administrator and Distributor. The
Officers of the Company conduct and supervise its daily business operations.
 
    DISTRIBUTOR.  Van Kampen American Capital Distributors, Inc. ("VKAC
Distributors," or the "Distributor") serves as the distributor of the shares of
the Company. Under its distribution agreement (the "Distribution Agreement")
with the Company, VKAC Distributors sells shares of the Company upon the terms
and at the current offering price described in this Prospectus. VKAC
Distributors is not obligated to sell any specific number of shares of the
Company.
 
    The Company currently offers Class A shares, Class B shares and Class C
shares of the Funds other than the money market funds. The Funds that are money
market funds offer only a single class of shares. The Company may in the future
offer one or more classes of shares for the Funds that may have CDSCs or initial
sales charges or other distribution charges or a combination thereof different
from those of the classes currently offered.
 
    The Board of Directors of the Company has approved and adopted the
Distribution Agreement for the Company and a Plan for each class of the Funds
pursuant to Rule 12b-1 under the 1940 Act (each a "Plan" and together, the
"Plans"). Under each Plan, the Distributor is entitled to receive from each Fund
a distribution fee, which is accrued daily and paid quarterly, at a maximum rate
of 0.75% of the Class B shares and Class C shares of the Fund, on an annualized
basis of the average daily net assets of such classes. The actual amount of such
compensation is agreed upon by the Company's Board of Directors and by the
Distributor. With respect to Class B shares, the Distributor expects to utilize
substantially all of its fee to reimburse itself for commissions paid to
investment dealers, banks or financial services firms that provide distribution
services (each, a "Participating Dealer"). With respect to the Class C shares,
the Distributor expects to reallocate substantially all of its fee to such
Participating Dealers. The Distributor may, in its discretion, voluntarily waive
from time to time all or any portion of its distribution fee and the Distributor
is free to make additional payments out of its own assets to promote the sale of
Fund shares. Class A shares, Class B shares and Class C shares authorizes the
payment of service fee at an annual rate of 0.25% on an annualized basis of the
average daily net assets of such class of shares of the Funds as compensation
the Distributor for shareholder services. In addition to such payments, the
Adviser may use its advisory fees or other resources to pay expenses associated
with activities which might be construed to be financing the sale of the Fund's
shares, including payments to third parties that provide assistance in the
distribution effort (in addition to selling shares and providing shareholder
services).
 
    The Plans obligate the Funds to accrue and pay to the Distributor the fee
agreed to under its Distribution Agreement. The Plans do not obligate the Funds
to reimburse the Distributor for the actual expenses Morgan Stanley may incur in
fulfilling its obligations under the Plan. Thus, under each Plan, even if the
Distributor's actual expenses exceed the fee payable to it thereunder at any
given time, the Funds will not be obligated to pay
 
                                       44
<PAGE>
more than that fee. If actual expenses are less than the fee it receives, the
Distributor will retain the full amount of the fee.
 
    Each Plan for a class of Company shares, under the terms of Rule 12b-1, will
remain in effect only if approved at least annually by the Company's Board of
Directors, including those directors who are not "interested persons" of the
Company as that term is defined in the 1940 Act and who have no direct or
indirect financial interest in the operation of a Plan or in any agreements
related thereto ("12b-1 Directors"). Each Plan may be terminated at any time by
a vote of a majority of the 12b-1 Directors or by a vote of a majority of the
outstanding voting securities of the applicable class of the Funds. The fee set
forth above will be paid by the appropriate class to the Distributor unless and
until a Plan is terminated or not renewed. The Company intends to operate each
Plan in accordance with its terms and the NASD Conduct Rules concerning sales
charges.
 
    PAYMENTS TO FINANCIAL INSTITUTIONS.  The Adviser or its affiliates may
compensate certain financial institutions for the continued investment of their
customers' assets in the Funds pursuant to the advice of such financial
institutions. These payments will be made directly by the Adviser or its
affiliates from their assets, and will not be made from the assets of the
Company or by the assessment of a sales charge on shares. Such financial
institutions may also perform certain shareholder or recordkeeping services that
would otherwise be performed by CGFSC. The Adviser may elect to enter into a
contract to pay the financial institutions for such services.
 
    EXPENSES.  The Fund is responsible for payment of certain other fees and
expenses (including professional fees, custodial fees and printing and mailing
costs) specified in the Administration and Distribution Agreements.
 
                               PURCHASE OF SHARES
 
GENERAL
 
    The Company offers three classes of shares to the public on a continuous
basis through the Distributor as principal underwriter, which is located at One
Parkview Plaza, Oakbrook Terrace, Illinois 60181. Shares are also offered
through members of the NASD who are acting as securities dealers ("dealers") and
NASD members or eligible non-NASD members who are acting as brokers or agents
for investors ("brokers"). The term "dealers" and "brokers" are sometimes
referred to herein as "Participating Dealers."
 
    Initial investments must be at least $500 for each class of shares, and
subsequent investments must be at least $25 for each class of shares. The $500
minimums may be waived by the Distributor for plans involving periodic
investments. Shares of the Company may be sold in foreign countries where
permissible. The Company and the Distributor reserve the right to refuse any
order for the purchase of shares. The Company also reserves the right to suspend
the sale of the Company's shares in response to conditions in the securities
markets or for other reasons.
 
    Shares of the Company may be purchased on any business day through
Participating Dealers. Shares may also be purchased by completing the
application accompanying this Prospectus and forwarding the application, through
the Participating Dealer, to the shareholder service agent, ACCESS Investor
Services, Inc., a wholly-owned subsidiary of Van Kampen American Capital, Inc.
("ACCESS"). When purchasing shares of the Company, investors must specify
whether the purchase is for Class A shares, Class B shares or Class C shares.
 
    Shares are offered at the next determined net asset value per share, plus a
front-end or contingent deferred sales charge depending on the class of shares
chosen by the investor, as shown in the tables herein. Net asset
 
                                       45
<PAGE>
value per share for each class is determined once daily as of the close of
trading on the New York Stock Exchange (the "NYSE") (currently 4:00 p.m.,
Eastern Time) each day the NYSE is open. Net asset value per share for each
class is determined by dividing the value of the Fund's securities, cash and
other assets (including accrued interest) attributable to such class less all
liabilities (including accrued expenses) attributable to such class by the total
number of shares of the class outstanding.
 
    Generally, the net asset values per share of the Class A shares, Class B
shares and Class C shares are expected to be substantially the same. Under
certain circumstances, however, the per share net asset values of the Class A
shares, Class B shares and Class C shares may differ from one another,
reflecting the daily expense accruals of the distribution and the higher
transfer agency fees applicable with respect to the Class B shares and Class C
shares and the differential in the dividends paid on the classes of shares. The
price paid for shares purchased is based on the next calculation of net asset
value (plus sales charges, where applicable) after an order is received by a
Participating Dealer provided such order is transmitted to the Distributor prior
to the Distributor's close of business on such day. Orders received by
Participating Dealers after the close of the NYSE are priced based on the net
asset value calculated after the next day's close provided they are received by
the Distributor prior to the Distributor's close of business on such day. It is
the responsibility of Participating Dealers to transmit orders received by them
to the Distributor so they will be received prior to such time. Orders of less
than $500 are mailed by the Participating Dealer and processed at the offering
price next calculated after acceptance by ACCESS.
 
    Each class of shares represents an interest in the same portfolio of
investments, has the same rights and is identical in all respects, except that
(i) Class B shares and Class C shares bear the expenses of the deferred sales
arrangement and any expenses (including the distribution fee and incremental
transfer agency costs) resulting from such sales arrangement, (ii) generally,
each class has exclusive voting rights with respect to approvals of the Rule
12b-1 distribution plan to which its distribution fee or service fee is paid and
(iii) Class B shares are subject to a conversion feature. Each class has
different exchange privileges and certain different shareholder service options
available. The net income attributable to Class B shares and Class C shares and
the dividends payable on Class B shares and Class C shares will be reduced by
the amount of the distribution fee and incremental transfer agency expenses
associated with such class of shares. Sales personnel of Participating Dealers
distributing the Company's shares and other persons entitled to receive
compensation for selling such shares may receive differing compensation for
selling Class A shares, Class B shares or Class C shares.
 
    In deciding which class of shares to purchase, investors should take into
consideration their investment goals, present and anticipated purchase amounts,
time horizons and temperments. Investors should consider whether, during the
anticipated life of their investment in the Fund, the accumulated distribution
fees and contingent deferred sales charges on Class B shares prior to conversion
or Class C shares would be less than the initial sales charge on Class A shares
purchased at the same time, and to what extent such differential would be offset
by the higher dividends per share on Class A shares. To assist investors in
making this determination, the table under the caption "Fund Expenses" sets
forth examples of the charges applicable to each class of shares. In this
regard, Class A shares may be more beneficial to the investor who qualifies for
reduced initial sales charges or purchases shares at net asset value, as
described herein under "Purchase of Shares -- Class A Shares." For these
reasons, it is presently the policy of the Distributor not to accept any order
of $500,000 or more for Class B shares or any order of $1 million or more for
Class C shares as it ordinarily would be more beneficial for such investor to
purchase Class A shares.
 
                                       46
<PAGE>
    Class A shares are not subject to an ongoing distribution fee and,
accordingly, receive correspondingly higher dividends per share. However,
because initial sales charges are deducted at the time of purchase for accounts
under $1 million, investors in Class A shares do not have all their funds
invested initially and, therefore, initially own fewer shares. Other investors
might determine that it is more advantageous to purchase either Class B shares
or Class C shares and have all their funds invested initially, although
remaining subject to a contingent deferred sales charge. Ongoing distribution
fees on Class B shares and Class C shares will be offset to the extent of the
additional funds originally invested and any return realized on those funds.
However, there can be no assurance as to the return, if any, which will be
realized on such additional funds. For investments held for ten years or more,
the relative value upon liquidation of the three classes tends to favor Class A
or Class B shares, rather than Class C shares.
 
    Class A shares may be appropriate for investors who prefer to pay the sales
charge up front, want to take advantage of the reduced sales charges available
on larger investments, wish to maximize their current income from the start,
prefer not to pay redemption charges and/or have a longer-term investment
horizon. Class B shares may be appropriate for investors who wish to avoid a
front-end sales charge, put 100% of their investment dollars to work
immediately, and/or have a longer-term investment horizon. Class C shares may be
appropriate for investors who wish to avoid a front-end sales charge, put 100%
of their investment dollars to work immediately, have a shorter-term investment
horizon and/or desire a short contingent deferred sales charge schedule.
 
    The distribution expenses incurred by the Distributor in connection with the
sale of the shares will be reimbursed, in the case of Class A shares, from the
proceeds of the initial sales charge and, in the case of Class B shares and
Class C shares, from the proceeds of the ongoing distribution fee and any
contingent deferred sales charge incurred upon redemption within five years or
one year, respectively, of purchase. Sales personnel of broker-dealers
distributing the Fund's shares and other persons entitled to receive
compensation for selling such shares may receive differing compensation for
selling such shares. Investors should understand that the purpose and function
of the contingent deferred sales charge and ongoing distribution fee with
respect to Class B shares and Class C shares are the same as those of the
initial sales charge with respect to Class A shares. See "Distribution Plans."
 
    The Distributor may from time to time implement programs under which a
Participating Dealer's sales force may be eligible to win nominal awards for
certain sales efforts or under which the Distributor will reallow to any
Participating Dealer that sponsors sales contests or recognition programs
conforming to criteria established by the Distributor, or participates in sales
programs sponsored by the Distributor, an amount not exceeding the total
applicable sales charges on the sales generated by the Participating Dealer at
the public offering price during such programs. Other programs provide, among
other things and subject to certain conditions, for certain favorable
distribution arrangements for shares of the Company. Also, the Distributor in
its discretion may from time to time, pursuant to objective criteria established
by the Distributor, pay fees to, and sponsor business seminars for, qualifying
authorized dealers for certain services or activities which are primarily
intended to result in sales of shares of the Company. Fees may include payment
for travel expenses, including lodging, incurred in connection with trips taken
by invited registered representatives and members of their families to locations
within or outside of the United States for meetings or seminars of a business
nature. Such fees paid for such services and activities with respect to a Fund
will not exceed in the aggregate 1.25% of the average total daily net assets of
the Fund on an annual basis. All of the foregoing payments are made by the
 
                                       47
<PAGE>
Distributor out of its own assets. These programs will not change the price an
investor will pay for shares or the amount that a Fund will receive from such
sale.
 
CLASS A SHARES
 
    The public offering price of Class A shares is the next determined net asset
value plus a sales charge, as set forth herein.
 
SALES CHARGE TABLE
 
<TABLE>
<CAPTION>
                                                                                                  REALLOWED TO DEALERS
                                                               AS % OF      AS % OF NET AMOUNT      (AS % OF OFFERING
SIZE OF INVESTMENT                                         OFFERING PRICE        INVESTED                PRICE)
- ---------------------------------------------------------  ---------------  -------------------  -----------------------
<S>                                                        <C>              <C>                  <C>
Less than $50,000........................................          5.75               6.10                   5.00
$50,000 but less than $100,000...........................          4.75               4.99                   4.00
$100,000 but less than $250,000..........................          3.75               3.90                   3.00
$250,000 but less than $500,000..........................          2.75               2.83                   2.25
$500,000 but less than $1,000,000........................          2.00               2.04                   1.75
$1,000,000 or more*......................................         *                  *                      *
</TABLE>
 
- ------------------
 
* No sales charge is payable at the time of purchase on investments of $1
  million or more, although for such investments the Fund imposes a contingent
  deferred sales charge of 1.00% in the event of certain redemptions within one
  year of the purchase. A commission will be paid to brokers, dealers or
  financial intermediaries who initiate and are responsible for purchases of $1
  million or more as follows: 1.00 % on sales to $2 million, plus 0.80% on the
  next million, plus 0.50% on the excess over $3 million. See "Purchase of
  Shares -- Purchase of Class B Shares" and "-- Purchase of Class C Shares" for
  additional information with respect to contingent deferred sales charges.
 
    In addition to the reallowances from the applicable public offering price
described herein, the Distributor may, from time to time, pay or allow
additional reallowances or promotional incentives, in the form of cash or other
compensation, to Participating Dealers that sell shares of the Company.
Participating Dealers which are reallowed all or substantially all of the sales
charges may be deemed to be underwriters for purposes of the Securities Act of
1933, as amended. The Distributor may also pay financial institutions (which may
include banks) and other industry professionals that provide services to
facilitate transactions in shares of the Company for their clients a transaction
fee up to the level of the reallowance allowable to Participating Dealers
described herein. Such financial institutions, other industry professionals and
Participating Dealers are hereinafter referred to as "Service Organizations."
Banks are currently prohibited under the Glass-Steagall Act from providing
certain underwriting or distribution services. If banking firms were prohibited
from acting in any capacity or providing any of the described services, the
Distributor would consider what action, if any, would be appropriate.
 
    The Distributor does not believe that termination of a relationship with a
bank would result in any material adverse consequences to the Company. State
securities laws regarding registration of banks and other financial institutions
may differ from the interpretations of federal law expressed herein and banks
and other financial institutions may be required to register as dealers pursuant
to certain state laws.
 
QUANTITY DISCOUNTS
 
    Investors purchasing Class A shares may, under certain circumstances, be
entitled to pay reduced sales charges. The circumstances under which such
investors may pay reduced sales charges are described below.
 
                                       48
<PAGE>
    Investors or their Participating Dealers must notify the Company whenever a
quantity discount is applicable to purchases. Upon such notification, an
investor will receive the lowest applicable sales charge. Quantity discounts may
be modified or terminated at any time. For more information about quantity
discounts, investors should contact their Participating Dealer or the
Distributor.
 
    A person eligible for a reduced sales charge includes an individual, their
spouse and children under 21 years of age, and any corporation, partnership or
sole proprietorship which is 100% owned, either alone or in combination, by any
of the foregoing; a trustee or other fiduciary purchasing for a single trust
estate or single fiduciary account, or a "company" as defined in Section 2(a)(8)
of the 1940 Act.
 
    As used herein, "Participating Funds" refers to certain open-end investment
companies advised by the Adviser or Van Kampen American Capital Asset Management
Inc. and distributed by the Distributor as determined from time to time by the
Company's Board of Directors.
 
    VOLUME DISCOUNTS.  The size of investment shown in the preceding tables
applies to the total dollar amount being invested by any person in shares of a
Fund or in any combination of shares of the Fund and shares of other
Participating Funds, although other Participating Funds may have different sales
charges.
 
    CUMULATIVE PURCHASE DISCOUNT.  The size of investment shown in the preceding
tables may also be determined by combining the amount being invested in shares
of the Participating Funds plus the current offering price of all shares of the
Participating Funds which have been previously purchased and are still owned.
 
    LETTER OF INTENT.  A Letter of Intent provides an opportunity for an
investor to obtain a reduced sales charge by aggregating investments over a
13-month period to determine the sales charge as outlined in the preceding
table. The size of investment shown in the preceding tables also includes
purchases of shares of the Participating Funds over a 13-month period based on
the total amount of intended purchases plus the value of all shares of the
Participating Funds previously purchased and still owned. An investor may elect
to compute the 13-month period starting up to 90 days before the date of
execution of a Letter of Intent. Each investment made during the period receives
the reduced sales charge applicable to the total amount of the investment goal.
If the goal is not achieved within the period, the investor must pay the
difference between the charges applicable to the purchases made and the charges
previously paid. The initial purchase must be for an amount equal to at least 5%
of the minimum total purchased amount of the level selected. If trades not
initially made under a Letter of Intent subsequently qualify for a lower sales
charge through the 90-day back-dating provisions, an adjustment will be made at
the expiration of the Letter of Intent to give effect to the lower charge. Such
adjustments in sales charge will be used to purchase additional shares for the
shareholder at the applicable discount category. Additional information is
contained in the application form accompanying this Prospectus.
 
OTHER PURCHASE PROGRAMS
 
    Purchasers of Class A shares may be entitled to reduced initial sales
charges in connection with unit trust reinvestment programs and purchases by
registered representatives of selling firms or purchases by persons affiliated
with the Company or the Distributor. The Company reserves the right to modify or
terminate these arrangements at any time.
 
    UNIT INVESTMENT TRUST REINVESTMENT PROGRAMS.  The Company permits
unitholders of unit investment trusts to reinvest distributions from such trusts
in Class A shares of the Company at net asset value with no minimum initial or
subsequent investment requirement if the administrator of an investor's unit
investment
 
                                       49
<PAGE>
trust program meets certain uniform criteria relating to cost savings by the
Company and the Distributor. The total sales charge for all other investments
made from unit trust distributions will be 1.00% of the offering price (1.01% of
net asset value). Of this amount, the Distributor will pay to the Participating
Dealer, if any, through which such participation in the qualifying program was
initiated 0.50% of the offering price as a dealer concession or agency
commission. Persons desiring more information with respect to this program,
including the applicable terms and conditions thereof, should contact their
Participating Dealer or the Distributor.
 
    The administrator of such a unit investment trust must have an agreement
with the Distributor pursuant to which the administrator will (1) submit a
single bulk order and make payment with a single remittance for all investments
in a Fund during each distribution period by all investors who choose to invest
in the Fund through the program and (2) provide ACCESS with appropriate backup
data for each participating investor in a computerized format fully compatible
with ACCESS' processing system.
 
    As further requirements for obtaining these special benefits, the Company
also requires that all dividends and other distributions by a Fund be reinvested
in additional shares without any systematic withdrawal program. There will be no
minimum for reinvestments from unit investment trusts. The Company will send
account activity statements to such participants on a monthly basis only, even
if their investments are made more frequently. The Company reserves the right to
modify or terminate this program at any time.
 
    NAV PURCHASE OPTIONS.  Class A shares of a Fund may be purchased at net
asset value, upon written assurance that the purchase is made for investment
purposes and that the shares will not be resold except through redemption by the
Fund, by:
 
        (1) Current or retired Trustees/Directors of funds advised by an Adviser
    and such persons' families and their beneficial accounts.
 
        (2) Current or retired directors, officers and employees of MSGI or
    VK/AC Holding, Inc. and any of their subsidiaries, employees of an
    investment subadviser to any fund described in (1) above or an affiliate of
    such subadviser, and such persons' families and their beneficial accounts.
 
        (3) Directors, officers, employees and registered representatives of
    financial institutions that have a selling group agreement with the
    Distributor and their spouses and children under 21 years of age when
    purchasing for any accounts they beneficially own, or, in the case of any
    such financial institution, when purchasing for retirement plans for such
    institution's employees.
 
        (4) Registered investments advisers, trust companies and bank trust
    departments investing on their own behalf or on behalf of their clients
    provided that the aggregate amount invested in a Fund alone, or in any
    combination of shares of the Fund and shares of other Participating Funds as
    described herein under "Purchase of Shares -- Class A Shares -- Volume
    Discounts," during the 13-month period commencing with the first investment
    pursuant hereto equals at least $1 million. The Distributor may pay
    Participating Dealers through which purchases are made an amount up to 0.50%
    of the amount invested, over a 12-month period following such transaction.
 
        (5) Trustees and other fiduciaries purchasing shares for retirement
    plans of organizations with retirement plan assets of $3 million or more and
    which invest in multiple fund families through national wirehouse alliance
    programs. The Distributor may pay commissions of up to 1.00% for such
    purchases.
 
                                       50
<PAGE>
        (6) Accounts as to which a bank or broker-dealer charges an account
    management fee ("wrap accounts"), provided the bank or broker-dealer has a
    separate agreement with the Distributor.
 
        (7) Trusts created under pension, profit sharing or other employee
    benefit plans qualified under Section 401(a) of the Code, or custodial
    accounts held by a bank created pursuant to Section 403(b) of the Code and
    sponsored by non-profit organizations defined under Section 501(c)(3) of the
    Code and assets held by an employer or trustee in connection with an
    eligible deferred compensation plan under Section 457 of the Code. Such
    plans will qualify for purchases at net asset value provided, for plans
    initially establishing accounts with the Distributor in the Participating
    Funds after February 1, 1997, that (1) the initial amount invested in the
    Participating Funds is at least $500,000 or (2) such shares are purchased by
    an employer sponsored plan with more than 100 eligible employees. Such plans
    that have been established with a Participating Fund or have received
    proposals from the Distributor prior to February 1, 1997 based on net asset
    value purchase privileges previously in effect will be qualified to purchase
    shares of the Participating Funds at net asset value for accounts
    established on or before May 1, 1997. Section 403(b) and similar accounts
    for which Van Kampen American Capital Trust Company serves as custodian will
    not be eligible for net asset value purchases based on the aggregate
    investment made by the plan or the number of eligible employee, except under
    certain uniform criteria established by the Distributor from time to time. A
    commission will be paid to dealers who initiate and are responsible for such
    purchases within a rolling twelve month period as follows: 1.00% on sales up
    to $5 million, plus 0.50% on the next $5 million, plus 0.25% on the excess
    over $10 million. For purchases on February 1, 1997 and thereafter, a
    commission will be paid as follows: 1.00% on sales up to $2 million, plus
    0.80% on the next $1 million, plus 0.50% on the next $47 million, plus 0.25%
    on the excess over $50 million.
 
        (8) GROUP PURCHASES. Individuals who are members of a "qualified group".
    For this purpose, a qualified group is one which (i) has been in existence
    for more than six months, (ii) has a purpose other than to acquire shares of
    the Fund or similar investments, (iii) has given and continues to give its
    endorsement or authorization, on behalf of the group, for purchase of shares
    of the Fund and other Participating Funds, (iv) has a membership that the
    authorized dealer can certify as to the group's members and (v) satisfies
    other uniform criteria established by the Distributor for the purpose of
    realizing economies of scale in distributing such shares. A qualified group
    does not include one whose sole organizational nexus, for example, is that
    its participants are credit card holders of the same institution, policy
    holders of an insurance company, customers of a bank or broker-dealer,
    clients of an investment adviser or other similar groups. Shares purchased
    in each group's participant's account in connection with this privilege will
    be subject to a contingent deferred sales charge of one percent in the event
    of redemption within one year of purchase, and a commission will be paid to
    authorized dealers who initiate and are responsible for such sales to each
    individual as follows: 1.00% on sales to $2 million, plus 0.80% on the next
    million and 0.50% on the excess over $3 million.
 
    The term "families" includes a person's spouse, children under 21 years of
age and grandchildren, parents, and a person's spouse's parents.
 
    Purchase orders made pursuant to clause (4) may be placed either through
authorized dealers as described above or directly with ACCESS by the investment
adviser, trust company or bank trust department, provided that ACCESS receives
federal funds for the purchase by the close of business on the next business day
following acceptance of the order. An authorized dealer may charge a transaction
fee for placing an order to purchase
 
                                       51
<PAGE>
shares pursuant to this provision or for placing a redemption order with respect
to such shares. Authorized dealers will be paid a service fee as described
herein under "Distribution Plans" on purchases made as described in (3) through
(8) above.
 
    The Company may terminate, or amend the terms of, offering shares of the
Fund at net asset value to the foregoing groups at any time.
 
RETIREMENT PLANS
 
    Van Kampen American Capital Trust Company ("VK Trust") provides retirement
plan services and documents and can establish investor accounts in IRAs trusteed
by Chase. This includes Simplified Employee Pension ("SEP") Plan, IRA accounts
and prototype documents. Brochures describing such plans and materials for
establishing them are available from VK Trust upon request. The brochures for
plans trusteed by Chase describe the current fees payable to Chase for its
services as trustee. Investors should consult with their own tax advisers before
establishing a retirement plan.
 
PURCHASE OF CLASS B SHARES
 
    Class B shares of the Funds may be purchased at net asset value without an
initial sales charge. However, a CDSC will be imposed on certain Class B shares
redeemed within five years of purchase. The charge is assessed on an amount
equal to the lesser of the then-current market value of the Class B shares
redeemed or the total cost of such shares. Accordingly, the CDSC will not be
applied to dollar amounts representing an increase in the net asset values above
the initial purchase price of the shares being redeemed. In addition, no charge
is assessed on redemptions of Class B shares derived from reinvestment of
dividends or capital gains distributions.
 
    In determining whether the CDSC is applicable to a redemption, the
calculation is made in the manner that results in the lowest possible rate.
Therefore, it is assumed that the redemption is first of any Class B shares in
the shareholder's account that represent reinvested dividends and/or
distributions, and/or of Class B shares held longer than five years after
purchase, and next of Class B shares held the longest during the initial
five-year period after purchase. The amount of the contingent deferred sales
charge, if any, will vary depending on the number of years from the time of
purchase of Class B shares until the redemption of such shares (the "holding
period"). The following table sets forth the rates of the CDSC.
 
CONTINGENT DEFERRED SALES CHARGE
 
<TABLE>
<CAPTION>
                                                                               SALES CHARGE AS
                                                                              PERCENTAGE OF THE
YEAR SINCE PURCHASE                                                             DOLLAR AMOUNT
PAYMENT WAS MADE                                                              SUBJECT TO CHARGE
- ----------------------------------------------------------------------------  -----------------
<S>                                                                           <C>
First.......................................................................           5.00%
Second......................................................................           4.00%
Third.......................................................................           3.00%
Fourth......................................................................           2.50%
Fifth.......................................................................           1.50%
Thereafter..................................................................            None*
</TABLE>
 
- ------------------
 
* As described more fully below, Class B shares automatically convert to Class A
  shares after the eighth year following purchase.
 
                                       52
<PAGE>
    Proceeds from any CDSC are paid to the Distributor and are used by the
Distributor to defray its expenses related to providing distribution-related
services to the Company in connection with the sale of the Class B shares. The
Distributor will make payments to the Participating Dealers that handle the
purchases of such shares at a rate not in excess of 4.00% of the purchase price
of such shares at the time of purchase and expects to pay to Participating
Dealers a portion of its distribution fee under the Plan, as described under
"Management of the Company -- Distributor" above. Additionally, the Distributor
may pay additional promotional incentives, in the form of cash or other
compensation, to authorized dealers that sell Class B shares of the Funds. The
combination of the CDSC and the distribution/service fee facilitates the ability
of the Company to sell the Class B shares without a sales charge being deducted
at the time of purchase.
 
    AUTOMATIC CONVERSION TO CLASS A SHARES.  After the eighth year following
purchase, Class B shares will automatically convert to Class A shares and will
no longer be subject to the higher distribution and service fees. Such
conversion will be on the basis of the relative net asset values of the two
classes, without the imposition of any sales load, fee or other charge. Under
current tax law, the conversion is not a taxable event to the shareholder.
 
    Class B shares may also be purchased through an Automatic Investment Plan as
described below.
 
PURCHASE OF CLASS C SHARES
 
    Class C shares of the Funds may be purchased at the net asset value per
share and such shares are subject to a CDSC at the rate of 1.00% of the lesser
of the current market value of the shares redeemed or the total cost of such
shares for shares that are redeemed within one year of purchase. The Distributor
will make payments to the Participating Dealers that handle the purchases of
such shares at the rate of 1.00% of the purchase price of such shares at the
time of purchase and expects to pay to Participating Dealers most of its
distribution fee, with respect to such shares, under the Rule 12b-1 Plan for
such class of shares, as described under "Management of the Company --
Distributor" above. In determining whether a CDSC is payable, and, if so, the
amount of the fee or charge, it is assumed that shares not subject to such fee
or charge are the first redeemed.
 
    WAIVER OF CDSC.  The CDSC will be waived on the redemption of Class B or
Class C shares (i) following the death or initial determination of disability
(as defined in the Code) of a shareholder; (ii) to the extent that the
redemption represents a minimum required distribution from an IRA or other
retirement plan to a shareholder who has attained the age of 70 1/2; (iii) to
the extent that shares redeemed have been withdrawn from a Systematic Withdrawal
Plan, up to a maximum of 12% per year from a shareholder account based on the
value of the account at the time the Withdrawal Plan is established; or (iv)
effected pursuant to the right of the Company to liquidate a shareholder's
account as described herein under "Redemption of Shares". The waiver with
respect to (i) above is only applicable in cases where the shareholder account
is registered (a) in the name of an individual person, (b) as a joint tenancy
with rights of survivorship, (c) as community property or (d) in the name of a
minor child under the Uniform Gifts or Uniform Transfers to Minors Act. A
shareholder, or his or her representative, must notify the Transfer Agent prior
to the time of redemption if such circumstances exist and the shareholder is
eligible for this waiver. The shareholder is responsible for providing
sufficient documentation to the Transfer Agent to verify the existence of such
circumstances. For information on the imposition and waiver of the CDSC, contact
the Transfer Agent at 1-800-282-4404.
 
AUTOMATIC REINVESTMENT OF DIVIDENDS AND DISTRIBUTIONS
 
    No initial sales charge or CDSC will be payable on the shares of the Funds
or class thereof purchased through the automatic reinvestment of dividends and
distributions on shares of the Funds.
 
                                       53
<PAGE>
REINSTATEMENT PRIVILEGE OF EACH CLASS
 
    A shareholder who has redeemed Class A shares of the Funds may reinvest up
to the full amount received at net asset value at the time of the reinvestment
in Class A shares of the Funds without payment of a sales charge. A shareholder
who has redeemed Class B shares of a Fund and paid a CDSC upon such redemption
may reinvest up to the full amount received upon redemption in Class A shares at
net asset value with no initial sales charge. A shareholder who has redeemed
Class C shares of the Fund and paid a CDSC upon such redemption may reinvest up
to the full amount received upon redemption in Class C shares at net asset value
and not be subject to a CDSC. The reinstatement privilege as to any specific
Class A, Class B or Class C shares must be exercised within 180 days of the
redemption. The Transfer Agent must receive from the shareholder or the
shareholder's Participating Dealer both a written request for reinstatement and
a check or wire which does not exceed the redemption proceeds. The written
request must state that the reinstatement is made pursuant to this reinstatement
privilege. If a loss is realized on the redemption of Class A shares, the
reinstatement may be subject to the "wash sale" rules if made within 30 days of
the redemption, resulting in a postponement of the recognition of such loss for
federal income tax purposes. The reinstatement privilege may be terminated or
modified at any time. Reinstatement at net asset value is also offered to
participants in those eligible retirement plans held or administered by Van
Kampen American Capital Trust Company for repayment of principal (and interest)
on their borrowings. See the Statement of Additional Information for further
discussion of waiver provisions.
 
                              SHAREHOLDER SERVICES
 
    The Company offers a number of shareholder services designed to facilitate
investment in its shares at little or no extra cost to the investor. Below is a
description of such services. Unless otherwise described below, each of these
services may be modified or terminated by the Company at any time.
 
    INVESTMENT ACCOUNT.  ACCESS Investor Services, Inc. ("ACCESS"), transfer
agent for the Company and a wholly-owned subsidiary of Van Kampen American
Capital, Inc. performs bookkeeping, data processing and administration services
related to the maintenance of shareholder accounts. Each shareholder has an
investment account under which shares are held by ACCESS. Except as described
herein, after each share transaction in an account, the shareholder receives a
statement showing the activity in the account. Each shareholder will receive
statements at least quarterly from ACCESS showing any reinvestments of dividends
and capital gains distributions and any other activity in the account since the
preceding statement. Such shareholders also will receive separate confirmations
for each purchase or sale transaction other than reinvestment of dividends and
capital gains distributions and systematic purchases or redemptions. Additions
to an investment account may be made at any time by purchasing shares through
authorized brokers, dealers or financial intermediaries or by mailing a check
directly to ACCESS.
 
    SHARE CERTIFICATES.  Generally, the Company will not issue share
certificates. However, upon written or telephone request to the Company, a share
certificate will be issued, representing shares (with the exception of
fractional shares) of the Company. A shareholder will be required to surrender
such certificates upon redemption or transfer thereof. In addition, if such
certificates are lost the shareholder must write to the Morgan Stanley Fund c/o
ACCESS, P.O. Box 418256, Kansas City, MO 64141-9256, requesting an "affidavit of
loss" and to obtain a Surety Bond in a form acceptable to ACCESS. On the date
the letter is received ACCESS will calculate a fee
 
                                       54
<PAGE>
for replacing the lost certificate equal to no more than 2.00% of the net asset
value of the issued shares and bill the party to whom the replacement
certificate was mailed.
 
    REINVESTMENT PLAN.  A convenient way for investors to accumulate additional
shares is by accepting dividends and capital gains distributions in shares of
the applicable Fund. Such shares are acquired at net asset value (without sales
charge) on the record date of such dividend or distribution. Unless the
shareholder instructs otherwise, the reinvestment plan is automatic. This
instruction may be made by telephone by calling (800) 282-4404 or (800) 772-8889
for the hearing impaired, or in writing to ACCESS. The investor may, on the
initial application or prior to any declaration, instruct that dividends be paid
in cash and capital gains distributions be reinvested at net asset value, or
that both dividends and capital gains distributions be paid in cash. For further
information, see "Dividends and Distributions."
 
    AUTOMATIC INVESTMENT PLAN.  An automatic investment plan is available under
which a shareholder can authorize ACCESS to charge a bank account on a regular
basis to invest pre-determined amounts in the Fund. Additional information is
available from the Distributor or authorized brokers, dealers or financial
intermediaries.
 
    DIVIDEND DIVERSIFICATION.  A shareholder may, upon written request or by
completing the appropriate section of the application form accompanied by this
Prospectus or by calling (800) 282-4404 or (800) 772-8889 for the hearing
impaired, elect to have all dividends and other distributions paid on a class of
shares of the Company invested into shares of the same class of any other Fund
so long as a pre-existing account for such class of shares exists for such
shareholder. Both accounts must also be of the same type, either non-retirement
or retirement. Any two non-retirement accounts can be used. If the accounts are
retirement accounts, they must both be for the same class and of the same type
of retirement plan (e.g. IRA, 403(b)(7), 401(k), Keogh) and for the benefit of
the same individual.
 
    If the qualified pre-existing account does not exist, the shareholder must
establish a new account subject to minimum investment and other requirements of
the fund into which distributions would be invested. Distributions are invested
into the selected fund at its net asset value as of the payable date of the
distribution only if shares of such selected fund have been registered for sale
in the investor's state.
 
    RETIREMENT PLANS.  Eligible investors may establish individual retirement
accounts ("IRAs"); SEP; and pension and profit sharing plans; 401(k) plans; or
Section 403(b)(7) plans in the case of employees of public school systems and
certain non-profit organizations. Documents and forms containing detailed
information regarding these plans are available from the Distributor. Van Kampen
American Capital Trust Company serves as custodian under the IRA, 403(b)(7) and
Keogh plans. Details regarding fees, as well as full plan administration for
profit sharing, pension and 401(k) plans, are available from the Distributor.
 
    EXCHANGE PRIVILEGE.  Shares of the Company may be exchanged with shares of
the same class of another Participating Fund, subject to certain limitations.
Before effecting an exchange, shareholders in the Company should obtain and read
a current prospectus of the Participating Funds into which the exchange is to be
made. SHAREHOLDERS MAY ONLY EXCHANGE INTO SUCH OTHER PARTICIPATING FUNDS AS ARE
LEGALLY AVAILABLE FOR SALE IN THEIR STATE.
 
    To be eligible for exchange, shares of a Fund generally must have been
registered in the shareholder's name for at least 30 days prior to an exchange.
Shares of a Fund registered in a shareholder's name for less than 30 days may
only be exchanged upon receipt of prior approval of the Adviser. Under normal
circumstances, it is the policy of the Adviser not to approve such requests.
 
                                       55
<PAGE>
    Class A shares of Funds that generally impose an initial sales charge are
not subject to any sales charge upon exchange into the Funds.
 
    No sales charge is imposed upon the exchange of a Class B share or a Class C
share. The contingent deferred sales charge schedule and conversion schedule
applicable to a Class B share or a Class C share acquired through the exchange
privilege is determined by reference to the Fund from which such share
originally was purchased. The holding period of a Class B share or a Class C
share acquired through the exchange privilege is determined by reference to the
date such exchanged share originally was purchased.
 
    Exchanges of shares are sales and may result in a gain or loss for federal
income tax purposes. If the shares exchanged have been held for less than 91
days, the sales charge paid on such shares is not included in the tax basis of
the exchanged shares, but is carried over and included in the tax basis of the
shares acquired.
 
    A shareholder wishing to make an exchange may do so by sending a written
request to ACCESS or by contacting the telephone transaction line at (800)
282-4404 ((800) 772-8889 for the hearing impaired). A shareholder automatically
has telephone exchange privileges unless otherwise designated in the application
form accompanied by this Prospectus. The exchange will take place at the
relative net asset values of the shares next determined after receipt of such
request with adjustment for any additional sales charge. Any shares exchanged
begin earning dividends on the next business day after the exchange is affected.
Van Kampen American Capital, Inc. and its subsidiaries, including ACCESS
(collectively, "VKAC"), and the Company employ procedures considered by them to
be reasonable to confirm that instructions communicated by telephone are
genuine. Such procedures include requiring certain personal identification
information prior to acting upon telephone instructions, tape recording
telephone communications, and providing written confirmation of instructions
communicated by telephone. If reasonable procedures are employed, a shareholder
agrees that neither the Distributor nor the Company will be liable for following
telephone instructions which it reasonably believes to be genuine. If the
exchanging shareholder does not have an account in the Fund whose shares are
being acquired, a new account will be established with the same registration,
dividend and capital gains options (except dividend diversification options) and
broker, dealer or financial intermediary of record as the account from which
shares are exchanged, unless otherwise specified by the shareholder. In order to
establish a systematic withdrawal plan for the new account or dividend
diversification options for the new account, an exchanging shareholder must file
a specific written request. The Company reserves the right to reject any order
to acquire its shares through exchange. In addition, the Company may restrict or
terminate the exchange privilege at any time on 60 days' notice to its
shareholders of any termination or material amendment.
 
    SYSTEMATIC WITHDRAWAL PLAN.  Any investor whose shares in a single account
total $5,000 or more may establish a quarterly, semi-annual or annual withdrawal
plan. Investors whose shares in a single account total $10,000 or more at the
offering price next computed after receipt of instructions have the additional
option of establishing a monthly withdrawal plan. This plan provides for the
orderly use of the entire account, not only the income but also the principal,
if necessary. Each withdrawal constitutes a redemption of shares on which
taxable gain or loss will be recognized. The plan holder may arrange for
monthly, quarterly, semi-annual, or annual checks in any amount not less than
$25.
 
    The CDSC on Class B and Class C shares is waived for withdrawals under the
Systematic Withdrawal Plan of a maximum 1% per month, 3% per quarter, 6%
semiannually or 12% annually, of the initial value of a shareholder's account.
Under this CDSC waiver policy, amounts withdrawn each month will be paid by
 
                                       56
<PAGE>
redeeming first Class B 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 no Class B
shares not subject to the CDSC are available, or not enough such shares are
available, Class B shares having a CDSC will be redeemed next, beginning with
such shares held for the longest period of time (having the lowest CDSC payable
upon redemption) and continuing with shares held the next longest period of time
until shares held the shortest period of time are redeemed. Under this policy,
the least amount of CDSC will be waived by withdrawals under the Systematic
Withdrawal Plan.
 
    Under the plan, sufficient shares of the Company are redeemed to provide the
amount of the periodic withdrawal payment. Dividends and capital gains
distributions on shares held under the plan are reinvested in additional shares
at the next determined net asset value. If periodic withdrawals continuously
exceed reinvested dividends and capital gains distributions, the shareholder's
original investment will be correspondingly reduced and ultimately exhausted.
Withdrawals made concurrently with purchases of additional shares ordinarily
will be disadvantageous to the shareholder because of the duplication of sales
charges. The Company reserves the right to amend or terminate the systematic
withdrawal program on thirty days' notice to its shareholders.
 
    AUTOMATED CLEARING HOUSE ("ACH") DEPOSITS.  Holders of Class A shares can
use ACH to have redemption proceeds deposited electronically into their bank
accounts. Redemptions transferred to a bank account via the ACH plan are
available to be credited to the account on the second business day following
normal payment. In order to utilize this option, the shareholder's bank must be
a member of Automated Clearing House. In addition, the shareholder must fill out
the appropriate section of the account application. The shareholder must also
include a voided check or deposit slip from the bank account into which
redemptions are to be deposited together with the completed application. Once
ACCESS has received the application and the voided check or deposit slip, such
shareholder's designated bank account, following any redemption, will be
credited with the proceeds of such redemption. Once enrolled in the ACH plan, a
shareholder may terminate participation at any time by writing to ACCESS or by
calling 1-800-282-4404. A shareholder's bank may charge a fee for this transfer.
 
                              REDEMPTION OF SHARES
 
    Shareholders may redeem for cash some or all of their shares without charge
by the Company (other than, any applicable contingent deferred sales charge) at
any time by sending a written request in proper form directly to the Fund c/o
ACCESS, P.O. Box 418256, Kansas City, Missouri 64141-9256, by placing the
redemption request through Participating Dealer or by calling the Company. See
"Purchase of Shares" for a discussion of applicable CDSC levels.
 
    WRITTEN REDEMPTION REQUESTS.  In the case of redemption requests sent
directly to ACCESS, the redemption request should indicate the number of shares
or dollars to be redeemed, the class designation of such shares, the account
number and be signed exactly as the shares are registered. Signatures must
conform exactly to the account registration. If the proceeds of the redemption
would exceed $50,000, or if the proceeds are not to be paid to the record owner
at the record address, or if the record address has changed within the previous
30 days, signature(s) must be guaranteed by one of the following: a bank or
trust company; a broker-dealer; a credit union; a national securities exchange,
registered securities association or clearing agency; a savings and loan
association; or a federal savings bank. If certificates are held for the shares
being redeemed, such certificates must be endorsed for transfer or accompanied
by an endorsed stock power and sent with the
 
                                       57
<PAGE>
redemption request. In the event the redemption is requested by a corporation,
partnership, trust, fiduciary, executor or administrator, and the name and title
of the individual(s) authorizing such redemption is not shown in the account
registration, a copy of the corporate resolution or other legal documentation
appointing the authorized signer and certified within the prior 60 days must
accompany the redemption request. The redemption price is the net asset value
per share next determined after the request is received by ACCESS in proper
form. Payment for shares redeemed (less any sales charge, if applicable) will
ordinarily be made by check mailed within seven business days after acceptance
by ACCESS of the request and any other necessary documents in proper order. Such
payments may be postponed or the right of redemption suspended as provided by
the rules of the SEC. If the shares to be redeemed have been recently purchased
by check, ACCESS may delay mailing a redemption check until it confirms that the
purchase check has cleared, usually a period of up to 15 days. Any gain or loss
realized on the redemption of shares is a taxable event.
 
    DEALER REDEMPTION REQUESTS.  Shareholders may sell shares through their
securities dealer, who will telephone the request to the Distributor. Orders
received from dealers must be at least $500 unless transmitted via the FUNDSERV
network. The redemption price for such shares is the net asset value next
calculated after an order is received, less any applicable CDSC, by a dealer
provided such order is transmitted to the Distributor prior to the Distributor's
close of business on such day. It is the responsibility of dealers to transmit
redemption requests received by them to the Distributor so they will be received
prior to such time. Any change in the redemption price due to failure of the
Distributor to receive a sell order prior to such time must be settled between
the shareholder and dealer. Shareholders must submit a written redemption
request in proper form (as described above under "Written Redemption Requests")
to the dealer within three business days after calling the dealer with the sell
order. Payment for shares redeemed will ordinarily be made by check mailed
within three business days to the dealer.
 
    TELEPHONE REDEMPTION REQUESTS.  The Company permits redemption of shares by
telephone and for redemption proceeds to be sent to the address of record for
the account or to the bank account of record as described below. To establish
such privilege, a shareholder must complete the appropriate section of the
application accompanying this Prospectus or call the Company at (800) 287-4404
or (800) 772-8889 for the hearing impaired, to request that a copy of the
Telephone Redemption Authorization form be sent to them for completion. To
redeem shares, contact the telephone transaction line at (800) 421-5684. The
Distributor and the Company employ procedures considered by them to be
reasonable to confirm that instructions communicated by telephone are genuine.
Such procedures include requiring certain personal identification information
prior to acting upon telephone instructions, tape recording telephone
communications, and providing written confirmation of instructions communicated
by telephone. If reasonable procedures are employed, a shareholder agrees that
neither the Distributor nor the Company will be liable for following
instructions which it reasonably believes to be genuine. The Distributor and the
Company may be liable for any losses due to unauthorized or fraudulent
instructions if reasonable procedures are not followed. Telephone redemptions
may not be available if the shareholder cannot reach ACCESS by telephone,
whether because all telephone lines are busy or for any other reason; in such
case, a shareholder would have to use the Company's other redemption procedures
previously described. Requests received by ACCESS prior to 4:00 p.m., Eastern
Time, on a regular business day will be processed at the net asset value per
share determined that day. These privileges are available for all accounts other
than retirement accounts. The telephone redemption privilege is not available
for shares represented by certificates. If the shares to be redeemed have been
recently purchased by check, ACCESS may delay mailing a redemption check or
wiring redemption proceeds until it confirms that the purchase check has
 
                                       58
<PAGE>
cleared, usually a period of up to 15 days. If an account has multiple owners,
ACCESS may rely on the instructions of any one owner.
 
    For redemptions authorized by telephone, amounts of $50,000 or less may be
redeemed daily if the proceeds are to be paid by check sent to the shareholders'
address of record and amounts of at least $1,000 and up to $1 million may be
redeemed daily if the proceeds are to be paid by wire sent to the shareholder's
bank account of record. The proceeds must be payable to the shareholder(s) of
record. Proceeds from redemptions to be paid by check will ordinarily be mailed
within three business days to the shareholder's address of record. Proceeds from
redemptions to be paid by wire will ordinarily be wired on the next business day
to the shareholder's bank account of record. This privilege is not available if
the address of record has been changed within 30 days prior to a telephone
redemption request. The Company reserves the right at any time to terminate,
limit or otherwise modify this telephone redemption privilege.
 
    REDEMPTION UPON DISABILITY.  The Company will waive the contingent deferred
sales charge on redemptions following the disability of holders of Class B
shares and Class C shares. An individual will be considered disabled for this
purpose if he or she meets the definition thereof in Section 72(m)(7) of the
Code, which in pertinent part defines a person as disabled if such person "is
unable to engage in any substantial gainful activity by reason of any medically
determinable physical or mental impairment which can be expected to result in
death or to be of long-continued and indefinite duration." While the Company
does not specifically adopt the balance of the Code's definition which pertains
to furnishing the Secretary of Treasury with such proof as he or she may
require, the Distributor will require satisfactory proof of disability before it
determines to waive the contingent deferred sales charge on Class B shares and
Class C shares.
 
    In cases of disability, the contingent deferred sales charges on Class B
shares and Class C shares will be waived where the disabled person is either an
individual shareholder or owns the shares as a joint tenant with right of
survivorship or is the beneficial owner of a custodial or fiduciary account, and
where the redemption is made within one year of the initial determination of
disability. This waiver of the contingent deferred sales charge on Class B
shares and Class C shares applies to a total or partial redemption, but only to
redemptions of shares held at the time of the initial determination of
disability.
 
    GENERAL REDEMPTION INFORMATION.  The Company may redeem any shareholder
account with a net asset value on the date of the notice of redemption less than
the minimum investment as specified by the Directors. At least 60 days' advance
written notice of any such involuntary redemption is required and the
shareholder is given an opportunity to purchase the required value of additional
shares at the next determined net asset value without sales charge. Any
applicable contingent deferred sales charge will be deducted from the proceeds
of this redemption. Any involuntary redemption may only occur if the shareholder
account is less than the minimum investment due to shareholder redemptions.
 
    As described herein under "Purchase of Shares," redemptions of Class B
shares or Class C shares are subject to a contingent deferred sales charge. In
addition, a CDSC of 1.00% may be imposed on certain redemptions of Class A
shares made within one year of purchase for investments of $1 million or more
and for certain qualified 401(k) retirement plans. The CDSC incurred upon
redemption is paid to the Distributor in reimbursement for distribution-related
expenses. A custodian of a retirement plan account may charge fees based on the
custodian's fee schedule.
 
                                       59
<PAGE>
    IRA redemption requests should be sent to the IRA custodian to be forwarded
to ACCESS. Where Van Kampen American Capital Trust Company serves as IRA
custodian, special IRA, 403(b)(7), or Keogh redemption forms must be obtained
from and be forwarded to Van Kampen American Trust Company, P.O. Box 944,
Houston, Texas 77001-0944. Contact the custodian for information.
 
    Reinstatement privileges (as otherwise described under "Reinstatement
Privilege of Each Class" above) also extend to participants in eligible
retirement plans held or administered by Van Kampen American Capital Trust
Company who repay the principal and interest on borrowings from such plans.
 
    FOR SHARES HELD IN BROKER STREET NAME, YOU CANNOT REQUEST REDEMPTION BY
TELEPHONE OR BY MAIL; SUCH SHARES MAY BE REDEEMED ONLY BY CONTACTING YOUR
PARTICIPATING DEALER.
 
TRANSFER OF REGISTRATION
 
    You may transfer the registration of any of your Company shares to another
person by writing to the Fund c/o ACCESS, P.O. Box 418256, Kansas City, Missouri
64141-9256. As in the case of redemptions, the written request must be received
in "good order" before any transfer can be made. Shares held in broker street
name may be transferred only by contacting your Participating Dealer.
 
                              VALUATION OF SHARES
 
    Net asset value is calculated separately for each class of a Fund. The net
asset value per share of each class of shares of a Fund is determined by
dividing the total fair market value of the investments and other assets
attributable to such classes of shares, less all liabilities attributable to
such class of shares, by the total number of outstanding shares of such classes
of shares. Net asset value per share of a Fund is determined as of the regular
close of the NYSE (currently 4:00 p.m. Eastern Time) on each day that the NYSE
is open for business. Securities listed on a securities exchange for which
market quotations are available are valued at their closing price. If no closing
price is available, such securities will be valued at the last quoted sale price
on the day the valuation is made. Price information on listed securities is
taken from the exchange where the security is primarily traded. Unlisted
securities and listed securities not traded on the valuation date for which
market quotations are readily available are valued at the average of the mean
between the current bid and asked prices obtained from reputable brokers.
 
    Bonds and other fixed income securities are valued according to the broadest
and most representative market, which will ordinarily be the over-the-counter
market. Net asset value includes interest on fixed income securities, which is
accrued daily. In addition, bonds and other fixed income securities may be
valued on the basis of prices provided by a pricing service when such prices are
believed to reflect the fair market value of such securities. The prices
provided by a pricing service are determined without regard to bid or last sale
prices but take into account institutional size trading in similar groups of
securities and any developments related to the specific securities. Securities
not priced in this manner are valued at the most recent quoted bid price, or,
when stock exchange valuations are used, at the closing price, or if that is
unavailable, the latest quoted sale price on the day of valuation. If there is
no such reported sale, the latest quoted bid price will be used. Debt securities
purchased with remaining maturities of 60 days or less are valued at amortized
cost, if it approximates market value. In the event that amortized cost does not
approximate market value, market prices as determined above will be used. The
"amortized cost" method of valuation does not take into account unrealized gains
or losses. This method involves valuing an instrument at its cost and thereafter
assuming a constant amortization to
 
                                       60
<PAGE>
maturity of any discount or premium, regardless of the impact of fluctuating
interest rates on the market value of the instrument. While this method provides
certainty in valuation, it may result in periods during which value, as
determined by amortized cost, is higher or lower than the price each Fund would
receive if it sold the instrument.
 
    The value of other assets and securities for which no quotations are readily
available (including illiquid and unlisted foreign securities) and those
securities for which it is inappropriate to determine prices in accordance with
the above procedures are determined in good faith at fair value using methods
determined by the Board of Directors. For purposes of calculating net asset
value per share, all assets and liabilities initially expressed in foreign
currencies will be converted into U.S. Dollars at the mean of the bid price and
asked price of such currencies against the U.S. Dollar as quoted by a major
bank.
 
    Although the legal rights of Class A, Class B and Class C shares will be
identical, the different expenses borne by each class will result in different
net asset values and dividends. Dividends will differ by approximately the
amount of the distribution expenses that have accrued for each class. The
respective net asset values of Class B shares and Class C shares will generally
be lower than the net asset value of Class A shares as a result of the larger
distribution fee charged to Class B and Class C shares.
 
                             PORTFOLIO TRANSACTIONS
 
    The Adviser selects the brokers or dealers that will execute the purchases
and sales of investment securities for the Funds. The Adviser may, consistent
with NASD rules, place portfolio orders with qualified broker-dealers who
recommend the Funds to their clients or who act as agents in the purchase of
shares of the Funds for their clients.
 
    Subject to the overriding objective of obtaining the best execution of
orders, the Adviser may allocate a portion of the Company's portfolio brokerage
transactions to Morgan Stanley & Co. Incorporated ("Morgan Stanley"), an
affiliate of the Adviser, or broker affiliates of Morgan Stanley under
procedures adopted by the Board of Directors. For such portfolio transactions,
the commissions, fees or other remuneration received by Morgan Stanley or such
affiliates must be reasonable and fair compared to the commissions, fees or
other remuneration paid to other brokers for comparable transactions involving
similar securities being purchased or sold during a comparable period of time.
 
    Although the objective of each Fund is not to invest for short-term trading,
a Fund will seek to take advantage of trading opportunities as they arise to the
extent they are consistent with the Fund's objectives. Accordingly, investment
securities may be sold from time to time without regard to the length of time
they have been held. Each Fund, other than the Latin American Fund, anticipates
that its annual portfolio turnover rate will not exceed 100% under normal
circumstances but market conditions could result in portfolio activity at a
greater or lesser rate than anticipated. High portfolio turnover involves
correspondingly greater transaction costs which will be borne directly by a
Fund. In addition, high portfolio turnover may result in more capital gains
which would be taxable to the shareholders of the particular Fund.
 
                            PERFORMANCE INFORMATION
 
    The Company may from time to time advertise total return of the Funds. THESE
FIGURES WILL BE BASED ON HISTORICAL EARNINGS AND ARE NOT INTENDED TO INDICATE
FUTURE PERFORMANCE. The "total return" shows what an
 
                                       61
<PAGE>
investment in a Fund would have earned over a specified period of time (such as
one, three, five or ten years) assuming that all distributions and dividends by
the Fund were reinvested on the reinvestment dates during the period. Total
return does not take into account any federal or state income taxes consequences
to shareholders subject to tax. The Company may also include comparative
performance information in advertising or marketing the Funds' shares. Such
performance information may include data from Lipper Analytical Services, Inc.
and Morgan Stanley Capital International.
 
    The respective performance figures for Class B shares and Class C shares of
a Fund will generally be lower than those for Class A shares because of the
larger distribution fee charged to Class B shares and Class C shares.
 
PERFORMANCE OF INVESTMENT SUB-ADVISER
 
    MSAM manages a portfolio of Morgan Stanley Institutional Fund, Inc. ("MSIF")
which served as the model for the Global Equity Fund. The portfolio of MSIF (the
"MSIF Portfolio") has substantially the same investment objective and policies
as the Global Equity Fund. In addition, the Adviser and MSAM intend the Global
Equity Fund and the corresponding MSIF Portfolio to be managed by the same
personnel and to continue to have closely similar investment strategies,
techniques and characteristics. Past investment performance of the MSIF
Portfolio, as shown in the table below, may be relevant to your consideration of
investment in the Global Equity Fund. The investment performance of the MSIF
Portfolio is not necessarily indicative of future performance of the Global
Equity Fund. Also, the operating expenses of the Global Equity Fund will be
different from, and may be higher than, the operating expenses of the MSIF
Portfolio. The investment performance of the MSIF Portfolio is provided merely
to indicate the experience of MSAM in managing similar investment portfolios.
 
    The data set forth below under the heading "Return With Sales Charge" is
adjusted, (i) with respect to the Class A shares, to take into account a 5.75%
sales charge applicable to purchases of Class A shares of the Global Equity
Fund; (ii) with respect to Class B shares, to take into account the applicable
CDSC that is imposed if Class B shares of the Global Equity Fund are redeemed
within the year of their purchase indicated; and (iii) with respect to the Class
C shares, to take into account a 1.00% CDSC that is imposed if Class C shares of
the Global Equity Fund are redeemed within one year of their purchase. The data
set forth below under the heading "Return Without Sales Charge" is not adjusted
to take into account such sales charges.
 
       TOTAL RETURN FOR THE MSIF GLOBAL EQUITY PORTFOLIO'S CLASS A SHARES
              (A SEPARATE MUTUAL FUND FROM THE GLOBAL EQUITY FUND)
                    FOR THE PERIOD ENDED SEPTEMBER 30, 1996
       (ADJUSTED TO REFLECT STATED SALES LOADS OF THE GLOBAL EQUITY FUND)
<TABLE>
<CAPTION>
RETURN WITH SALES CHARGE                                                                 1 YEAR    SINCE INCEPTION(1)
- -------------------------------------------------------------------------------------  ----------  -------------------
<S>                                                                                    <C>         <C>
Class A (of 5.75%)...................................................................       8.44%          12.34%
Class B (of 5.00%)...................................................................       9.19%          13.09%
Class C (of 1.00%)...................................................................      13.19%          18.09%
 
<CAPTION>
RETURN WITHOUT SALES CHARGE
- -------------------------------------------------------------------------------------
<S>                                                                                    <C>         <C>
Class A..............................................................................      14.19%          18.09%
Class B..............................................................................      14.19%          18.09%
Class C..............................................................................      14.19%          18.09%
</TABLE>
 
- ------------------
 
(1) Commenced Operations on July 15, 1992.
 
                                       62
<PAGE>
    The past performance of the MSIF Global Equity Portfolio is no guarantee of
the future performance of the Global Equity Fund.
 
                          DIVIDENDS AND DISTRIBUTIONS
 
    Shareholders will automatically be credited with all dividends and
distributions in additional shares at net asset value, without payment of any
initial sales charge of the Funds, except that, upon written notice to the
Company or by checking off the appropriate box in the Distribution Option
Section on the New Account Application, a shareholder may elect to receive
dividends and/or distributions in cash. Shares received through reinvestment of
dividends and/or distributions will not be subject to any CDSC upon their
redemption.
 
    Each Fund expects to distribute substantially all of its net investment
income in the form of annual dividends. Net realized gains, if any, will be
distributed annually. Confirmations of the purchase of shares of a Fund through
the automatic reinvestment of income dividends and capital gains distributions
will be provided, pursuant to Rule 10b-10(b) under the Securities Exchange Act
of 1934, as amended, on the next quarterly client statement following such
purchase of shares. Consequently, confirmations of such purchases will not be
provided at the time of completion of such purchases, as might otherwise be
required by Rule 10b-10.
 
    Any undistributed net investment income and undistributed realized gains
increase a Fund's net assets for the purpose of calculating net asset value per
share. Therefore, on the "ex-dividend" or "ex-distribution" date, the net asset
value per share excludes the dividend or distribution (i.e., is reduced by the
per share amount of the dividend or distribution). Dividends and distributions
paid shortly after the purchase of shares by an investor, although in effect a
return of capital, are taxable to shareholders subject to tax.
 
    Because of the higher distribution fee, higher shareholder servicing fee,
and any other expenses that may be attributable to the Class B shares and Class
C shares of the Funds, the net income attributable to and the dividends payable
on Class B shares and Class C shares of the Funds will be lower than the net
income attributable to and the dividends payable on Class A shares of the Funds.
As a result, the net asset value per share of the classes of the Funds will
differ at times. Expenses of the Company allocated to a particular class of
shares of the Fund will be borne on a pro rata basis by each outstanding share
of that class.
 
                                     TAXES
 
TAX STATUS OF THE FUNDS
 
    The following summary of certain federal income tax consequences is based on
current tax laws and regulations, which may be changed by legislative, judicial
or administrative action. See also the tax sections in the Statement of
Additional Information.
 
    No attempt has been made to present a detailed explanation of the federal,
state or local income tax treatment of the Funds or their shareholders.
Accordingly, shareholders are urged to consult their tax advisors regarding
specific questions as to federal, state and local income taxes.
 
    Each of the Funds is generally treated as a separate entity for federal
income tax purposes, and thus the provisions of the Internal Revenue Code of
1986, as amended (the "Code") generally will be applied to each Fund separately,
rather than to the Company as a whole. Net long-term and short-term capital
gains, net income and operating expenses therefore will be determined separately
for each Fund.
 
    Each Fund intends to qualify for the special tax treatment afforded
"regulated investment companies" ("RICs") under Subchapter M of the Code so that
it will be relieved of federal income tax on that part of its net
 
                                       63
<PAGE>
investment income and net capital gain (the excess of net long-term capital gain
over net short-term capital loss less any available capital loss carryforward)
which is distributed to its shareholders.
 
TAX STATUS OF DISTRIBUTIONS
 
    Each Fund distributes substantially all of its net investment income
(including, for this purpose, net short-term capital gain), to its shareholders.
Dividends paid by a Fund from its net investment income will be taxable to the
shareholders of the Fund as ordinary income, whether received in cash or in
additional shares, if the shareholder is subject to tax. Dividends paid by a
Fund attributable to dividends received from shares of domestic corporations
will qualify for the dividends-received deduction for corporations.
 
    Distributions of net capital gains are taxable to shareholders subject to
tax as long-term capital gains, regardless of how long the shareholder has held
a Fund's shares. Capital gains distributions are not eligible for the corporate
dividends-received deduction. The Funds will make annual reports to shareholders
of the federal income tax status of all distributions.
 
    Each Fund intends to make sufficient distributions or deemed distributions
of its ordinary income and net capital gains prior to the end of each calendar
year to avoid liability for federal excise tax.
 
    Dividends and other Distributions declared in October, November and December
by a Fund payable as of a record date in such month and paid at any time during
January of the following year are treated as having been paid by the Fund and
received by the shareholders on December 31 of the year declared.
 
    The sale, exchange or redemption of shares may result in taxable gain or
loss to the selling, exchanging or redeeming shareholder, depending upon whether
the fair market value of the redemption proceeds exceeds or is less than the
Shareholder's adjusted basis in the redeemed, exchanged or sold shares. If
capital gain distributions have been made with respect to shares that are sold
at a loss after being held for six months or less, then the loss is treated as a
long-term capital loss to the extent of the capital gain distributions.
Shareholders may also be subject to state and local taxes on distributions from
the Funds.
 
    THE TAX DISCUSSION SET FORTH ABOVE IS INCLUDED HEREIN FOR GENERAL
INFORMATION ONLY. PROSPECTIVE INVESTORS AND SHAREHOLDERS SHOULD CONSULT THEIR
OWN TAX ADVISERS WITH RESPECT TO THE TAX CONSEQUENCES TO THEM OF AN INVESTMENT
IN THE FUNDS.
 
                              GENERAL INFORMATION
 
DESCRIPTION OF COMMON STOCK
 
    The Company was organized as a Maryland corporation on August 14, 1992. The
Amended Articles of Incorporation currently permit the Company to issue 27.375
billion shares of common stock, par value $.001 per share. Pursuant to the
Company's By-Laws, the Board of Directors may increase the number of shares the
Company is authorized to issue without the approval of the shareholders of the
Company. The Board of Directors has the power to designate one or more classes
of shares of common stock and to classify and reclassify any unissued shares
with respect to such classes.
 
    The shares of the Funds, when issued, will be fully paid, nonassessable,
fully transferable and redeemable at the option of the holder. The shares have
no preference as to conversion, exchange, dividends, retirement or other
features and have no preemptive rights. The shares of the Funds have
non-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. Under Maryland law, the Company is not required to hold
an annual meeting
 
                                       64
<PAGE>
of its shareholders unless required to do so under the 1940 Act. Any person or
organization owning 25% or more of the outstanding shares of a Fund may be
presumed to "control" (as that term is defined in the 1940 Act) such Fund. As of
December 11, 1996, Charles Schwab & Co., Exclusive Benefit of its Customers, 101
Montgomery Street, San Francisco, CA 94104, was presumed to "control" the
Emerging Markets Fund and Morgan Stanley Group Inc., 1221 Avenue of the
Americas, New York, NY 10020, was presumed to "control" the International Magnum
Fund based solely on its ownership of 25% or more of the outstanding voting
shares of such Funds.
 
REPORTS TO SHAREHOLDERS
 
    The Company will send to its shareholders annual and semi-annual reports;
the financial statements appearing in annual reports are audited by independent
accountants.
 
    In addition, the Company or the Transfer Agent, will send to each
shareholder having an account directly with the Company a quarterly statement
showing transactions in the account, the total number of shares owned, and any
dividends or distributions paid. In addition, when a transaction occurs in a
shareholder's account, the Company or the Transfer Agent will send the
shareholder a confirmation statement showing the same information.
 
CUSTODIAN
 
    Domestic securities and cash are held by Chase, which is not an affiliate of
the Adviser or the Distributor. Morgan Stanley Trust Company, Brooklyn, New York
("Morgan Stanley Trust"), acts as the Company's custodian for foreign assets
held outside the United States and employs subcustodians who were approved by
the Directors of the Company in accordance with regulations of the SEC for the
purpose of providing custodial services for such assets. Morgan Stanley Trust
may also hold certain domestic assets for the Company. Morgan Stanley Trust is
an affiliate of the Adviser and the Distributor. For more information on the
custodians, see "General Information--Custody Arrangements" in the Statement of
Additional Information.
 
DIVIDEND DISBURSING AND TRANSFER AGENT
 
    ACCESS, P.O. Box 418256, Kansas City, Missouri 64141-9256, acts as dividend
disbursing and transfer agent for the Company.
 
INDEPENDENT ACCOUNTANTS
 
    Price Waterhouse LLP, 1177 Avenue of the Americas, New York, NY 10036,
serves as independent accountants for the Company and audits its annual
financial statements.
 
                                       65
<PAGE>
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<PAGE>
                                   APPENDIX A
                     DESCRIPTION OF CORPORATE BOND RATINGS
 
MOODY'S INVESTORS SERVICE, INC. -- CORPORATE BOND RATINGS:
 
    Aaa -- Bonds which are rated Aaa are judged to be the best quality. They
carry the smallest degree of investment risk and are generally referred to as
"gilt-edge." Interest payments are protected by a large or by an exceptionally
stable margin, and principal is secure. While the various protective elements
are likely to change, such changes as can be visualized are most unlikely to
impair the fundamentally strong position of such issues.
 
    Aa -- Bonds which are rated Aa are judged to be of high quality by all
standards. Together with the Aaa group they comprise what are generally known as
high grade bonds. They are rated lower than the best bonds because margins of
protection may not be as large as in Aaa securities or fluctuation of protective
elements may be of greater amplitude or there may be other elements present
which make the long-term risks appear somewhat larger than in Aaa securities.
 
    Moody's applies numerical modifiers 1, 2 and 3 in the Aa and A rating
categories. The modifier 1 indicates that the security ranks at a higher end of
the rating category, modifier 2 indicates a mid-range rating and the modifier 3
indicates that the issue ranks at the lower end of the rating category.
 
    A -- Bonds which are rated A possess many favorable investment attributes
and are to be considered as upper medium grade obligations. Factors giving
security to principal and interest are considered adequate but elements may be
present which suggest a susceptibility to impairment sometime in the future.
 
    Baa -- Bonds which are rated Baa are considered as medium grade obligations,
i.e., they are neither highly protected nor poorly secured. Interest payments
and principal security appear adequate for the present but certain protective
elements may be lacking or may be characteristically unreliable over any great
length of time. Such bonds lack outstanding investment characteristics and in
fact have speculative characteristics as well.
 
    Ba -- Bonds which are rated Ba are judged to have speculative elements;
their future cannot be considered as well assured. Often the protection of
interest and principal payments may be very moderate, and thereby not well
safeguarded during both good and bad times over the future. Uncertainty of
position characterizes bonds in this class.
 
    B -- Bonds which are rated B generally lack characteristics of the desirable
investment. Assurance of interest and principal payments or of maintenance of
other terms of the contract over any long period of time may be small.
 
    Caa -- Bonds which are rated Caa are of poor standing. Such issues may be in
default or there may be present elements of danger with respect to principal or
interest.
 
    Ca -- Bonds which are rated Ca represent obligations which are speculative
in a high degree. Such issues are often in default or have other marked
shortcomings.
 
    C -- Bonds which are rated C are the lowest rated class of bonds, and issues
so rated can be regarded as having extremely poor prospects of ever attaining
any real investment standing.
 
                                      A-1
<PAGE>
STANDARD & POOR'S RATINGS GROUP -- CORPORATE BOND RATINGS:
 
    AAA -- Bonds rated AAA have the highest rating assigned by Standard & Poor's
to a debt obligation and indicate an extremely strong capacity to pay principal
and interest.
 
    AA -- Bonds rated AA have a very strong capacity to pay interest and repay
principal and differ from the highest rated issues only to a small degree.
 
    A -- Bonds rated A have a strong capacity to pay interest and repay
principal although they are somewhat more susceptible to the adverse effects of
changes in circumstances and economic conditions than bonds in higher rated
categories.
 
    BBB -- Debt rated BBB is regarded as having an adequate capacity to pay
interest and repay principal. Whereas it normally exhibits adequate protection
parameters, adverse economic conditions or changing circumstances are more
likely to lead to a weakened capacity to pay interest and repay principal for
debt in this category than for debt in higher rated categories.
 
    BB, B, CCC, CC -- Debt rated BB, B, CCC and CC is regarded, on balance, as
predominantly speculative with respect to capacity to pay interest and repay
principal in accordance with the terms of the obligation. BB indicates the
lowest degree of speculation and CC the highest degree of speculation. While
such debt will likely have some quality and protective characteristics, these
are outweighed by large uncertainties or major risk exposures to adverse
conditions.
 
    C -- The rating C is reserved for income bonds on which no interest is being
paid.
 
    D -- Debt rated D is in default, and payment of interest and/or repayment of
principal is in arrears.
 
                                      A-2
<PAGE>
- -------------------------------------------
- -------------------------------------------
- -------------------------------------------
- -------------------------------------------
 
  NO DEALER, SALES REPRESENTATIVE OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO
GIVE ANY INFORMATION OR TO MAKE ANY REPRESENTATIONS, OTHER THAN THOSE CONTAINED
IN THIS PROSPECTUS, IN CONNECTION WITH THE OFFER MADE BY THIS PROSPECTUS AND, IF
GIVEN OR MADE, SUCH OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON
AS HAVING BEEN AUTHORIZED BY THE COMPANY OR THE DISTRIBUTOR. THIS PROSPECTUS
DOES NOT CONSTITUTE AN OFFER BY THE COMPANY OR THE DISTRIBUTOR TO SELL OR A
SOLICITATION OF AN OFFER TO BUY ANY OF THE SECURITIES OFFERED HEREBY IN ANY
JURISDICTION TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR
SOLICITATION IN SUCH JURISDICTION.
 
                           --------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>                                                                   <C>
                                                                      PAGE
                                                                      -----
Fund Expenses.........................................................    2
 
Prospectus Summary....................................................   11
 
Investment Objective and Policies.....................................   15
 
Additional Investment Information.....................................   27
 
Investment Limitations................................................   39
 
Management of the Company.............................................   39
 
Purchase of Shares....................................................   45
 
Shareholder Services..................................................   54
 
Redemption of Shares..................................................   57
 
Valuation of Shares...................................................   60
 
Portfolio Transactions................................................   61
 
Performance Information...............................................   61
 
Dividends and Distributions...........................................   63
 
Taxes.................................................................   63
 
General Information...................................................   64
 
Appendix A............................................................  A-1
</TABLE>
 
                                 MORGAN STANLEY
                               ASIAN GROWTH FUND
                             EMERGING MARKETS FUND
                               GLOBAL EQUITY FUND
                         GLOBAL EQUITY ALLOCATION FUND
                           INTERNATIONAL MAGNUM FUND
                              JAPANESE EQUITY FUND
                              LATIN AMERICAN FUND
 
                               PORTFOLIOS OF THE
                                 MORGAN STANLEY
                                   FUND, INC.
 
                                ---------------
                                   PROSPECTUS
                                ---------------
 
                               INVESTMENT ADVISER
 
                              VAN KAMPEN AMERICAN
                               CAPITAL INVESTMENT
                                 ADVISORY CORP.
 
                             INVESTMENT SUB-ADVISER
 
                                 MORGAN STANLEY
                             ASSET MANAGEMENT INC.
 
                                  DISTRIBUTOR
 
                              VAN KAMPEN AMERICAN
 
                           CAPITAL DISTRIBUTORS, INC.
 
- ------------------------------------
- ------------------------------------
- ------------------------------------
- ------------------------------------
<PAGE>
- --------------------------------------------------------------------------------
                              P R O S P E C T U S
 -----------------------------------------------------------------------------
                        MORGAN STANLEY MONEY MARKET FUND
                   MORGAN STANLEY TAX-FREE MONEY MARKET FUND
            MORGAN STANLEY GOVERNMENT OBLIGATIONS MONEY MARKET FUND
                               PORTFOLIOS OF THE
                           MORGAN STANLEY FUND, INC.
                  P.O. BOX 418256, KANSAS CITY, MISSOURT 64141
                      FOR INFORMATION CALL 1-800-282-4404
                               ------------------
 
    Morgan Stanley Fund, Inc. (the "Company") is an open-end management
investment company, or mutual fund, which consists of twenty-two diversified and
non-diversified investment portfolios. This prospectus (the "Prospectus")
describes the shares of the Morgan Stanley Money Market Fund, the Morgan Stanley
Tax-Free Money Market Fund and the Morgan Stanley Government Obligations Money
Market Fund (collectively, the "Money Market Funds" and each a "Fund"). The
Company is designed to make available to retail investors the expertise of
Morgan Stanley Asset Management Inc., the investment adviser (the "Adviser") and
administrator (the "Administrator"). Shares are available through Van Kampen
American Capital Distributors, Inc. ("VKAC Distributors" or the "Distributor")
and investment dealers, banks and financial services firms that provide
distribution, administrative or shareholder services ("Participating Dealers").
The Tax-Free Money Market Fund is not currently offering shares.
 
    The Money Market Funds are subject to certain special risk factors. For
information about these risk factors, see "Prospectus Summary -- Risk Factors."
 
    INVESTMENTS IN THE MONEY MARKET FUNDS ARE NEITHER INSURED NOR GUARANTEED BY
THE U.S. GOVERNMENT. THERE IS NO ASSURANCE THAT A FUND WILL BE ABLE TO MAINTAIN
A STABLE NET ASSET VALUE OF $1.00 PER SHARE.
 
    This Prospectus is designed to set forth concisely the information about the
Money Market Funds that a prospective investor should know before investing and
it should be retained for future reference. The Company offers additional
portfolios which are described in other prospectuses and under "Prospectus
Summary" below. The Company currently offers the following Funds: (i) GLOBAL AND
INTERNATIONAL EQUITY -- Morgan Stanley Asian Growth, Morgan Stanley Emerging
Markets, Morgan Stanley Global Equity, Morgan Stanley Global Equity Allocation,
Morgan Stanley International Magnum and Morgan Stanley Latin American Funds;
(ii) U.S. EQUITY -- Morgan Stanley Aggressive Equity, Morgan Stanley American
Value, Morgan Stanley Equity Growth, Morgan Stanley Mid Cap Growth, Morgan
Stanley U.S. Real Estate and Morgan Stanley Value Funds; (iii) GLOBAL FIXED
INCOME -- Morgan Stanley Emerging Markets Debt, Morgan Stanley Global Fixed
Income, Morgan Stanley High Yield and Morgan Stanley Worldwide High Income
Funds; and (iv) MONEY MARKET -- Morgan Stanley Government Obligations Money
Market and Morgan Stanley Money Market Funds. Additional information about the
Company is contained in a "Statement of Additional Information," dated January
1, 1997, which is incorporated herein by reference. The Statement of Additional
Information and the prospectuses pertaining to the other portfolios of the
Company are available upon request and without charge by writing or calling the
Company at the address and telephone number set forth above.
 
    THE MONEY MARKET FUNDS' SHARES ARE NOT DEPOSITS, OBLIGATIONS OR ACCOUNTS
(COMPANY OR OTHERWISE) OF, OR ENDORSED OR GUARANTEED BY, ANY BANK OR ANY OF ITS
AFFILIATES OR CORRESPONDENTS, NOR ARE THEY FEDERALLY INSURED BY THE FEDERAL
DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY.
INVESTMENTS IN THE COMPANY INVOLVE RISK, INCLUDING POSSIBLE LOSS OF PRINCIPAL.
 
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.
 
                THE DATE OF THIS PROSPECTUS IS JANUARY 2, 1997.
<PAGE>
                                 FUND EXPENSES
 
    The following table illustrates all expenses and fees that a shareholder of
a Fund may incur:
 
<TABLE>
<CAPTION>
                                                                         GOVERNMENT
                                                             TAX-FREE    OBLIGATIONS
                                                 MONEY        MONEY        MONEY
                                                 MARKET       MARKET       MARKET
SHAREHOLDER TRANSACTION EXPENSES                  FUND         FUND         FUND
- ---------------------------------------------  ----------   ----------   ----------
<S>                                            <C>          <C>          <C>
Maximum Sales Load Imposed on Purchases......     None         None         None
Maximum Sales Load Imposed on Reinvested
 Dividends...................................     None         None         None
Maximum Deferred Sales Load..................     None         None         None
Redemption Fees..............................     None         None         None
Exchange Fees................................     None         None         None
Annual Fund Operating Expenses
 (as a percentage of average net assets)
Investment Advisory Fee (after expense
 reimbursement and/or fee waiver) (1)........     .36%         .14%         .41%
12b-1 Fees (after fee waivers) (1)...........     .35%         .35%         .25%
Other Expenses...............................     .27%         .46%         .29%
Total Operating Expenses (after expense
 reimbursement and/or fee waiver)............     .98%         .95%         .95%
</TABLE>
 
- ------------------
(1) The Adviser and the Distributor will voluntarily waive a portion of their
    respective fees and/or reimburse fund expenses until such time as they
    determine that the particular Fund's performance is competitive with other
    comparable funds without such waivers. However, such fee waivers are
    voluntary and may be terminated at any time. There can be no assurances that
    any future waivers will not vary from the figures reflected in the expense
    table. Absent fee waivers, investment advisory fees would be 0.45% and 12b-1
    fees would be 0.50% for each Fund and total operating expenses would be
    1.22% for the Money Market Fund, 1.41% for the Tax-Free Money Market Fund
    and 1.24% for the Government Obligations Money Market Fund. (Investment
    advisory fees are contractually reduced when average daily net assets exceed
    $250 million. (See "Management of the Company".)) The percentages shown
    above representing annual fund operating expenses are based on net operating
    expenses for the PCS Money Market Portfolio (the "Predecessor Money Market
    Portfolio"), the predecessor portfolio to the Money Market Fund, and for the
    PCS Government Obligations Money Market Portfolio (the "Predecessor
    Government Obligations Money Market Portfolio"), the predecessor portfolio
    to the Government Obligations Money Market Fund, for the fiscal year ended
    June 30, 1996. The expenses for the Tax-Free Money Market Fund, which is not
    in operation, are estimates based on an estimated average net asset level
    for the first year of $50,000,000.
 
    The purpose of the above table is to assist the investor in understanding
the various expenses that an investor in any of the Money Market Funds will bear
directly or indirectly. "Other Expenses" include, among others, Directors' fees
and expenses, amortization of organizational costs, filing fees, professional
fees, and the costs for reports to shareholders. Due to the continuous nature of
Rule 12b-1 fees, long-term shareholders may pay more than the equivalent of the
maximum front-end sales charges otherwise permitted by the Conduct Rules of the
National Association of Securities Dealers, Inc. (the "NASD").
 
                                       2
<PAGE>
    The following example illustrates the expenses that you would pay on a
$1,000 investment, assuming (1) a 5% annual rate of return and (2) redemption at
the end of each time period. (If it is assumed there are no redemptions, the
expenses are the same.)
 
<TABLE>
<CAPTION>
                                                                                  GOVERNMENT
                                                                        TAX-FREE  OBLIGATIONS
                                                              MONEY      MONEY      MONEY
                                                              MARKET     MARKET     MARKET
                                                             FUND (1)     FUND     FUND (1)
                                                            ---------- ---------- ----------
<S>                                                         <C>        <C>        <C>
1 Year...................................................... $   10    $   10     $   10
3 Years.....................................................     31        30         30
5 Years.....................................................     54      *            53
10 Years....................................................    120      *           117
</TABLE>
 
- --------------
(1)  The projected expenses are based upon the respective operating histories of
     the Predecessor Money Market Portfolio and the Predecessor Government
     Obligations Money Market Portfolio.
 
*    Because the Tax-Free Money Market Fund was not operational as of the date
     of this Prospectus, the Company has not projected expenses beyond the
     three-year period shown.
 
    THIS EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE
EXPENSES OR PERFORMANCE. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE
SHOWN. The Adviser in its discretion may terminate voluntary fee waivers and/or
reimbursements at any time. Absent the waiver of fees or reimbursement of
expenses, the amounts in the example above would be greater.
 
                                       3
<PAGE>
                              FINANCIAL HIGHLIGHTS
 
    The following tables provide financial highlights for the PCS Money Market
Portfolio and PCS Government Obligations Money Market Portfolio (the
"Predecessor Portfolios"), the predecessors of the Morgan Stanley Money Market
Fund and Morgan Stanley Government Obligations Money Market Fund, respectively,
for each of the periods presented. The audited financial highlights for the
shares for the fiscal year ended June 30, 1996 are part of the Company's
financial statements which appear in the PCS Cash Fund, Inc.'s June 30, 1996
Annual Report to Shareholders and in the Company's Statement of Additional
Information. The Predecessor Portfolios' financial highlights for each of the
periods presented have been derived from financial statements audited by Coopers
& Lybrand L.L.P., whose unqualified report thereon also appears in the Statement
of Additional Information. Additional performance information for the shares of
the Predecessor Portfolios is included in the Annual Report. The Annual Report
and the financial statements therein, along with the Statement of Additional
Information, are available at no cost from the Company at the address and
telephone number noted on the cover page of this Prospectus. The following
financial highlights should be read in conjunction with the financial statements
and notes thereto.
 
                                       4
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                             MONEY MARKET PORTFOLIO
 
<TABLE>
<CAPTION>
                                                                                                             FOR THE PERIOD
                                                                                                             AUGUST 4, 1989
                                                                                                             (COMMENCEMENT
                                                 FOR THE FISCAL YEAR ENDED JUNE 30                           OF OPERATIONS)
                         ---------------------------------------------------------------------------------    TO JUNE 30,
                            1996          1995          1994          1993          1992          1991            1990
<S>                      <C>           <C>           <C>           <C>           <C>           <C>           <C>
- ---------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF PERIOD...  $  1.00       $  1.00       $  1.00       $  1.00       $  1.00       $  1.00          $  1.00
                         -----------   -----------   -----------   -----------   -----------   -----------      -------
INCOME FROM INVESTMENT
 OPERATIONS:
  Net Investment
   Income..............    .0463         .0446         .0246         .0243         .0402         .0652            .0690
  Net Realized Gains on
   Investments.........   (.0006)        .0001            --         .0001            --            --               --
                         -----------   -----------   -----------   -----------   -----------   -----------      -------
LESS DIVIDENDS TO
 SHAREHOLDERS FROM:
  Net Investment
   Income..............   (.0463)       (.0446)       (.0246)       (.0243)       (.0402)       (.0652)          (.0690)
  Net Realized Gains...       --        (.0001)           --        (.0001)           --            --               --
                         -----------   -----------   -----------   -----------   -----------   -----------      -------
NET ASSET VALUE, END OF
 PERIOD................  $  1.00       $  1.00       $  1.00       $  1.00       $  1.00       $  1.00          $  1.00
                         -----------   -----------   -----------   -----------   -----------   -----------      -------
                         -----------   -----------   -----------   -----------   -----------   -----------      -------
TOTAL RETURN...........     4.72%         4.55%         2.49%         2.47%         4.11%         6.72%            7.12%(c)
                         -----------   -----------   -----------   -----------   -----------   -----------      -------
                         -----------   -----------   -----------   -----------   -----------   -----------      -------
Ratio of Expenses to
 Average Net Assets....      .98%(b)       .98%(b)       .98%(b)       .98%(b)       .98%(b)       .98%(b)          .98%(a)(b)
Ratio of Net Investment
 Income to Average Net
 Assets................     4.65%(b)      4.45%(b)      2.45%(b)      2.44%(b)      3.97%(b)      6.40%(b)         7.53%(a)(b)
Net Assets at End of
 Period (000)..........  $170,973      $171,515      $176,599      $156,310      $190,034      $140,594         $76,463
- ------------------------------------------------------------------------------------------------------------------
</TABLE>
 
(a) Annualized.
 
(b) Without voluntary fee waiver of advisory and distribution fees, the ratios
    of expenses to average net assets would have been 1.22%, 1.18%, 1.19%,
    1.20%, 1.27%, 1.27% and 1.48% (annualized), respectively. The ratio of net
    investment income to average net assets would have been 4.41%, 4.25%, 2.24%,
    2.22%, 3.68%, 6.11% and 7.03% (annualized), respectively.
 
                                       5
<PAGE>
                         FINANCIAL HIGHLIGHTS CONTINUED
                 GOVERNMENT OBLIGATIONS MONEY MARKET PORTFOLIO
 
<TABLE>
<CAPTION>
                                                                                                          FOR THE PERIOD
                                                                                                          MARCH 12, 1992
                                                                                                          (COMMENCEMENT
                                                            FOR THE FISCAL YEAR ENDED JUNE 30             OF OPERATIONS)
                                                  -----------------------------------------------------    TO JUNE 30,
                                                     1996          1995          1994          1993            1992
<S>                                               <C>           <C>           <C>           <C>           <C>
- ------------------------------------------------------------------------------------------------------------------------
NET ASSET VALUE, BEGINNING OF PERIOD............  $  1.00       $  1.00       $  1.00       $  1.00          $  1.00
                                                  -----------   -----------   -----------   -----------   --------------
INCOME FROM INVESTMENT OPERATIONS:
  Net Investment Income.........................    .0464         .0448         .0243         .0246            .0094
  Net Realized Gains on Investments.............   (.0011)           --         .0011         .0002               --
                                                  -----------   -----------   -----------   -----------   --------------
LESS DIVIDENDS TO SHAREHOLDERS FROM:
  Net Investment Income.........................   (.0464)       (.0448)       (.0243)       (.0246)          (.0094)
  Net Realized Gains............................   (.0001)           --         .0011        (.0002)              --
                                                  -----------   -----------   -----------   -----------   --------------
NET ASSET VALUE, END OF PERIOD..................  $  1.00       $  1.00       $  1.00       $  1.00          $  1.00
                                                  -----------   -----------   -----------   -----------   --------------
                                                  -----------   -----------   -----------   -----------   --------------
TOTAL RETURN....................................     4.72%         4.58%         2.45%         2.51%            .094%(c)
                                                  -----------   -----------   -----------   -----------   --------------
                                                  -----------   -----------   -----------   -----------   --------------
Ratio of Expenses to Average Net Assets.........      .95%(b)       .95%(b)       .95%(b)       .95%(b)          .95%(a)(b)
Ratio of Net Investment Income to Average Net
 Assets.........................................     4.68%(b)      4.61%(b)      2.40%(b)      2.50%(b)         3.07%(a)(b)
Net Assets at End of Period (000)...............  $145,978      $67,705       $102,551      $101,736        $269,627
- ------------------------------------------------------------------------------------------------------------------
</TABLE>
 
(a) Annualized.
 
(b) Without voluntary fee waiver of advisory and distribution fees, the ration
    of expenses to average net assets would have been 1.24%, 1.12%, 1.22%, 1.19%
    and 1.29% annualized and the ratio of net investment income to average net
    assets would have been 4.39%, 4.44%, 2.13%, 2.26% and 2.73% annualized.
 
(c) Not annualized. Total return, if on an annualized basis, would have been
    3.16% for the Government Obligations Money Market Portfolio.
 
                                       6
<PAGE>
                               PROSPECTUS SUMMARY
 
THE COMPANY
 
    The Company currently consists of twenty-two Funds which are designed to
offer investors a range of investment choices with Morgan Stanley Asset
Management Inc. ("MSAM") and its affiliate, Miller Anderson & Sherrerd, LLP
("MAS"), providing services as Advisers and Administrators and Van Kampen
American Capital Distributors, Inc. ("VKAC Distributors") providing services as
Distributor. MAS serves as the Adviser and Administrator for the Mid Cap Growth
Fund and the Value Fund, which are described in a separate prospectus. MSAM
serves as the Adviser and Administrator for all of the other Funds listed below.
Each Fund has its own investment objective and policies designed to meet its
specific goals. For ease of reference the words "Morgan Stanley," which begin
the name of each Fund, are not included in the Funds named below. The investment
objective of each Fund described in this Prospectus is as follows:
 
    - The MONEY MARKET FUND seeks to provide as high a level of current interest
      income as is consistent with maintaining liquidity and stability of
      principal.
 
    - The TAX-FREE MONEY MARKET FUND seeks to provide as high a level of current
      interest income exempt from regular federal income taxes as is consistent
      with maintaining liquidity and stability of principal.
 
    - The GOVERNMENT OBLIGATIONS MONEY MARKET FUND seeks to provide as high a
      level of current interest income as is consistent with maintaining
      liquidity and stability of principal.
 
    The other Funds are described in other prospectuses which may be obtained
from the Company at the address and telephone number noted on the cover page of
this Prospectus. The objectives of the Company's other Funds are listed below:
 
GLOBAL AND INTERNATIONAL EQUITY FUNDS:
 
    - The ASIAN GROWTH FUND seeks long-term capital appreciation through
      investment primarily in equity securities of Asian issuers, excluding
      Japan.
 
    - The EMERGING MARKETS FUND seeks long-term capital appreciation by
      investing primarily in equity securities of emerging country issuers.
 
    - The EUROPEAN EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of European issuers.
 
    - The GLOBAL EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of issuers throughout the world, including
      U.S. issuers.
 
    - The GLOBAL EQUITY ALLOCATION FUND seeks long-term capital appreciation by
      investing in equity securities of U.S. and non-U.S. issuers in accordance
      with country weightings determined by the Adviser and with stock selection
      within each country designed to replicate a broad market index.
 
    - The INTERNATIONAL MAGNUM FUND seeks long-term capital appreciation by
      investing primarily in equity securities of non-U.S. issuers in accordance
      with EAFE country weightings determined by the Adviser.
 
                                       7
<PAGE>
    - The JAPANESE EQUITY FUND seeks long-term capital appreciation by investing
      primarily in equity securities of Japanese issuers.
 
    - The LATIN AMERICAN FUND seeks long-term capital appreciation by investing
      primarily in equity securities of Latin American issuers and investing in
      debt securities issued or guaranteed by Latin American governments or
      governmental entities.
 
U.S. EQUITY FUNDS:
 
    - The AGGRESSIVE EQUITY FUND seeks capital appreciation by investing
      primarily in a non-diversified portfolio of corporate equity and
      equity-linked securities.
 
    - The AMERICAN VALUE FUND seeks high total return by investing in
      undervalued equity securities of small-to medium-sized corporations.
 
    - The EQUITY GROWTH FUND seeks long-term capital appreciation by investing
      in growth-oriented equity securities of medium and large capitalization
      companies.
 
    - The GROWTH AND INCOME FUND seeks capital appreciation and current income
      by investing primarily in equity and equity-linked securities.
 
    - The MID CAP GROWTH FUND seeks to achieve long-term capital growth by
      investing primarily in common stocks and other equity securities of
      smaller and medium size companies which are deemed by the Adviser to offer
      long-term growth potential.
 
    - The U.S. REAL ESTATE FUND seeks to provide above-average current income
      and long-term capital appreciation by investing primarily in equity
      securities of companies in the U.S. real estate industry, including real
      estate investment trusts.
 
    - The VALUE FUND seeks to achieve above-average total return over a market
      cycle of three to five years, consistent with reasonable risk, by
      investing primarily in a diversified portfolio of common stocks and other
      equity securities which are deemed by the Adviser to be relatively
      undervalued based on various measures such as price/earnings ratios and
      price/book ratios.
 
GLOBAL FIXED INCOME FUNDS:
 
    - The EMERGING MARKETS DEBT FUND seeks high total return by investing
      primarily in debt securities of government, government-related and
      corporate issuers located in emerging countries.
 
    - The GLOBAL FIXED INCOME FUND seeks to produce an attractive real rate of
      return while preserving capital by investing in fixed income securities of
      issuers throughout the world, including U.S. issuers.
 
    - The HIGH YIELD FUND seeks to maximize total return by investing in a
      diversified portfolio of high yield fixed income securities that offer a
      yield above that generally available on debt securities in the four
      highest rating categories of the recognized rating services.
 
                                       8
<PAGE>
    - The WORLDWIDE HIGH INCOME FUND seeks high current income consistent with
      relative stability of principal and, secondarily, capital appreciation, by
      investing primarily in a portfolio of high yielding fixed income
      securities of issuers located throughout the world.
 
    - The GROWTH AND INCOME, JAPANESE EQUITY, EUROPEAN EQUITY AND TAX-FREE MONEY
      MARKET FUNDS ARE CURRENTLY NOT BEING OFFERED.
 
INVESTMENT MANAGEMENT
 
    Morgan Stanley Asset Management Inc. ("MSAM," the "Adviser" and the
"Administrator"), a wholly-owned subsidiary of Morgan Stanley Group Inc.
("MSGI") which, together with its affiliated asset management companies, had
approximately $103.5 billion in assets under management as an investment manager
or as a fiduciary adviser at September 30, 1996, acts as investment adviser to
each of the Funds, except the Mid Cap Growth and Value Funds. See "Management of
the Company Investment Adviser" and "-- Administrator." On October 31, 1996,
MSGI purchased the parent company of Van Kampen American Capital, Inc., which in
turn is the parent company of VKAC Distributors. Van Kampen American Capital,
Inc. is the fourth largest non-proprietary mutual fund provider in the United
States with approximately $59 billion in assets under management or supervision
as of September 30, 1996.
 
RISK FACTORS
 
    The investment policies of each Fund entail certain risks and considerations
of which an investor should be aware. Investments in the Funds are neither
insured nor guaranteed by the U.S. Government, and there is no assurance that a
Fund will be able to maintain a stable net asset value of $1.00 per share. The
Money Market and Government Obligations Money Market Funds, to the extent set
forth under "Investment Objectives and Policies," may engage in the following
investment practices: the use of repurchase agreements and reverse repurchase
agreements; the purchase of mortgage-backed securities; the purchase of
securities on a "when-issued" basis; and the purchase of securities on a
"forward commitment" basis. The Money Market Fund may also invest in securities
of foreign issuers, which are subject to certain risks not typically associated
with U.S. securities. All of these transactions involve certain special risks,
as set forth under "Investment Objectives and Policies."
 
HOW TO INVEST
 
    Shares of each of the Money Market Funds are offered at net asset value.
Share purchases may be made through VKAC Distributors, through Participating
Dealers or by sending payments directly to the Company. The minimum initial
investment is $500 for each class of the Fund, except that the minimum initial
investment amount is reduced for certain categories of investors. The minimum
for subsequent investments is $25, except that there is no minimum for automatic
reinvestment of dividends and distributions. See "Purchase of Shares."
 
HOW TO REDEEM
 
    Shares of each Fund may be redeemed at any time at the net asset value per
share of the Fund next determined after receipt of the redemption request. The
redemption price may be more or less than the purchase price. If a shareholder
reduces his/her total investment in shares of a Fund to less than $500, the
entire investment may be subject to involuntary redemption. See "Redemption of
Shares."
 
                                       9
<PAGE>
                       INVESTMENT OBJECTIVES AND POLICIES
 
    The investment objective of each Fund is described below, together with the
policies the Fund employs in its efforts to achieve its objective. Each Fund's
investment objective is a fundamental policy which may not be changed by the
Fund without the approval of a majority of the Fund's outstanding voting
securities. The investment policies described below are not fundamental policies
and may be changed without shareholder approval. There is no assurance that a
Fund will attain its objective. For more information about certain investment
practices common to two or more of the Money Market Funds and applicable quality
requirements, see "Additional Investment Information."
 
THE MONEY MARKET FUND
 
    The Money Market Fund's investment objective is to provide as high a level
of current interest income as is consistent with maintaining liquidity and
stability of principal. Obligations held by the Money Market Fund will have
remaining maturities of 397 days or less (except that portfolio securities which
are subject to repurchase agreements may bear maturities exceeding 397 days). In
pursuing its investment objective, the Money Market Fund invests in a broad
range of U.S. dollar-denominated instruments, such as government, bank and
commercial obligations, that may be available in the money markets and that
satisfy strict credit quality standards imposed by the Fund in accordance with
applicable law ("Money Market Instruments"). The following descriptions
illustrate the types of Money Market Instruments in which the Money Market Fund
invests.
 
    BANK OBLIGATIONS.  The Fund may purchase bank obligations, such as
certificates of deposit, bankers' acceptances and time deposits, including U.S.
dollar-denominated instruments issued or supported by the credit of U.S. or
foreign banks or savings institutions having total assets at the time of
purchase in excess of $1 billion. The Fund may invest substantially in U.S.
dollar-denominated obligations of foreign banks or foreign branches of U.S.
banks where the Adviser deems the instrument to present minimal credit risks and
to otherwise satisfy applicable quality standards. Such investments may
nevertheless entail risks that are different from those of investments in
domestic obligations of U.S. banks due to differences in political, regulatory
and economic systems and conditions. These risks may include future unfavorable
political and economic developments, possible withholding taxes on interest
income, seizure or nationalization of foreign deposits, currency controls,
interest limitations, or other governmental restrictions which might affect the
payment of principal or interest on the securities held in the Fund.
Additionally, these institutions may be subject to less stringent reserve
requirements and to different accounting, auditing, reporting and recordkeeping
requirements than those applicable to domestic branches of U.S. banks. The Fund
may also make interest-bearing savings deposits in commercial and savings banks
in amounts not in excess of 5% of its total assets.
 
    COMMERCIAL PAPER.  The Fund may purchase commercial paper rated (at the time
of purchase) "A-1" or "A-1+" by Standard & Poor's Ratings Group ("S&P") or
"Prime-1" by Moody's Investors Service, Inc. ("Moody's") or when deemed
advisable by the Adviser and to the extent permitted under applicable
regulations, limited amounts of issues rated "A-2" or "Prime-2" by S&P or
Moody's, respectively that the Adviser believes to be of high quality. The Fund
may also purchase commercial paper not rated by S&P or Moody's provided that
such paper is determined by the Adviser to be of comparable quality pursuant to
guidelines approved by the Company's Board of Directors. The applicable
short-term corporate ratings are described in the Appendix to the Statement of
Additional Information.
 
                                       10
<PAGE>
    UNITED STATES GOVERNMENT OBLIGATIONS.  The Money Market Fund may invest in
obligations issued or guaranteed by the United States Government, including
United States Treasury securities and other securities backed by the full faith
and credit of the United States, such as obligations of the Government National
Mortgage Association ("GNMA"), the Farmers Home Administration and the
Export-Import Bank. The Fund may also invest in obligations issued or guaranteed
by United States Government agencies or instrumentalities, such as the Federal
Farm Credit System and the Federal Home Loan Banks, where the Fund must look
principally to the issuing or guaranteeing agency for ultimate repayment. For a
more complete discussion of United States Government Obligations, see the
description of the Government Obligations Money Market Fund.
 
    MUNICIPAL OBLIGATIONS.  "Municipal Obligations" are obligations issued by or
on behalf of states, territories and possessions of the United States, the
District of Columbia and their political subdivisions, agencies,
instrumentalities and authorities. The Fund may invest without limitation in
high quality, short-term Municipal Obligations issued by state and local
governmental issuers, the interest on which may be taxable or tax-exempt for
federal income tax purposes, when deemed appropriate by the Adviser in light of
the Fund's investment objective, and provided that such obligations carry yields
that are competitive with those of other types of Money Market Instruments of
comparable quality. For a more complete discussion of Municipal Obligations, see
the description of the Tax-Free Money Market Fund. In addition, the Fund may
acquire "stand-by commitments" with respect to Municipal Obligations held in its
portfolio. Under a stand-by commitment, a dealer would agree to purchase at the
Fund's option specified Municipal Obligations at a specified price. The
acquisition of a stand-by commitment may increase the cost, and thereby reduce
the yield, of the Municipal Obligation to which such commitment relates. The
Fund will acquire stand-by commitments solely to facilitate portfolio liquidity
and does not intend to exercise its rights thereunder for trading purposes.
 
THE TAX-FREE MONEY MARKET FUND
 
    The Tax-Free Money Market Fund's investment objective is to provide as high
a level of current interest income exempt from regular federal income taxes as
is consistent with maintaining liquidity and stability of principal. The
Tax-Free Money Market Fund invests substantially all of its assets in a
diversified portfolio of high quality, short-term Municipal Obligations, the
interest on which, in the opinion of bond counsel or counsel to the issuer, as
the case may be, is exempt from the regular federal income tax. It is a
fundamental policy of the Fund that under normal market conditions, at least 80%
of the net assets of the Tax-Free Money Market Fund will be invested in
short-term Municipal Obligations, the interest on which is exempt from regular
federal income tax and is not an item of tax preference for noncorporate
shareholders for purposes of the alternative minimum tax ("Tax-Exempt
Interest"). All portfolio investments must satisfy strict credit quality
standards imposed by the Company in accordance with applicable law.
 
    MUNICIPAL OBLIGATIONS.  The Fund invests in short-term Municipal Obligations
which are determined by the Adviser to present minimal credit risks and to
otherwise satisfy applicable quality standards pursuant to guidelines
established by the Company's Board of Directors and which at the time of
purchase are considered to be "first-tier" securities e.g., rated "AAA" or
higher by S&P or "Aaa" or higher by Moody's in the case of bonds; rated "SP-1"
by S&P or "MIG-1" by Moody's in the case of notes; rated "VMIG-1" by Moody's in
the case of variable rate demand notes; or rated "A-1" or "A-1+" by S&P or
"Prime-1" by Moody's in the case of tax-exempt commercial paper. The Fund may
also purchase securities that are not rated by S&P or Moody's at the time of
 
                                       11
<PAGE>
purchase provided that the securities are determined to be of comparable quality
by the Adviser pursuant to guidelines approved by the Company's Board of
Directors. The applicable Municipal Obligations ratings are described in the
Appendix to the Statement of Additional Information.
 
    The Fund may hold uninvested cash reserves pending investment during
temporary defensive periods or if, in the opinion of the Adviser, suitable
obligations bearing Tax-Exempt Interest are unavailable. There is no percentage
limitation on the amount of assets which may be held uninvested during temporary
defensive periods. Uninvested cash reserves will not earn income.
 
    The two principal classifications of Municipal Obligations are "general
obligation" securities and "revenue" securities. General obligation securities
are secured by the issuer's pledge of its full faith, credit and taxing power
for the payment of principal and interest. Revenue securities are payable only
from the revenues derived from a particular facility or class of facilities or,
in some cases, from the proceeds of a special excise tax or other specific
excise tax or other specific revenue source such as the user of the facility
being financed. Revenue securities include private activity bonds which are not
payable from the unrestricted revenues of the issuer. Consequently, the credit
quality of private activity bonds is usually directly related to the credit
standing of the corporate user of the facility involved. Municipal Obligations
may also include "moral obligation" bonds, which are normally issued by special
purpose public authorities. If the issuer of moral obligation bonds is unable to
meet its debt service obligations from current revenues, it may draw on a
reserve fund, the restoration of which is a moral commitment but not a legal
obligation of the state or municipality which created the issuer. Municipal
Obligations may include variable rate demand notes, which are described below
under "Additional Investment Information."
 
    Current federal tax law limits the types and volume of bonds qualifying for
the federal income tax exemption of interest. Such limitations may have an
effect on the ability of the Fund to purchase sufficient amounts of tax-exempt
securities. In addition, interest on certain bonds, although exempt from the
regular federal income tax, may be subject to alternative minimum tax. See the
discussion below under "Taxes" and the Statement of Additional Information.
 
    Although the Tax-Free Money Market Fund may invest more than 25% of its net
assets in (i) Municipal Obligations whose issuers are in the same state, (ii)
Municipal Obligations the interest on which is paid solely from revenues of
similar projects and (iii) private activity bonds bearing Tax-Exempt Interest,
it does not currently intend to do so on a regular basis. To the extent the
Tax-Free Money Market Fund's assets are concentrated in Municipal Obligations
that are payable from the revenues of similar projects or are issued by issuers
located in the same state, the Fund will be subject to the peculiar risks
presented by the laws and economic conditions relating to such states or
projects to a greater extent than it would be if its assets were not so
concentrated.
 
THE GOVERNMENT OBLIGATIONS MONEY MARKET FUND
 
    The Government Obligations Money Market Fund's investment objective is to
provide as high a level of current interest income as is consistent with
maintaining liquidity and stability of principal. It seeks to achieve such
objective by investing at least 65% of its net assets, under normal market
conditions, in short-term U.S. Treasury bills, notes and other obligations
issued or guaranteed by the U.S. Government, its agencies or instrumentalities,
and entering into repurchase agreements relating to such obligations. Purchases
of portfolio securities must satisfy strict credit quality standards imposed by
the Fund in accordance with applicable law.
 
                                       12
<PAGE>
The types of U.S. Government obligations in which the Fund may invest include a
variety of U.S. Treasury obligations, which differ only in their interest rates,
maturities, and time of issuance, and obligations issued or guaranteed by the
U.S. Government, its agencies or instrumentalities, including mortgage-backed
securities. Obligations of certain agencies and instrumentalities of the U.S.
Government, such as GNMA and the Export-Import Bank of the United States, are
supported by the full faith and credit of the U.S. Treasury; others, such as
those of the Federal National Mortgage Association ("FNMA"), are supported by
the right of the issuer to borrow from the Treasury; others, such as those of
the Student Loan Marketing Association, are supported by the discretionary
authority of the U.S. Government to purchase the agency's obligations; still
others, such as those of the Federal Farm Credit Banks or the Federal Home Loan
Mortgage Corporation, are supported only by the credit of the instrumentality.
No assurance can be given that the U.S. Government would provide financial
support to U.S. Government-sponsored agencies or instrumentalities if it is not
obligated to do so under law. The Fund will invest in the obligations of such
agencies or instrumentalities only when the Adviser believes that the credit
risk with respect thereto is minimal and that applicable quality standards have
been satisfied.
 
    Securities issued or guaranteed by the U.S. Government, its agencies and
instrumentalities have historically involved little risk of loss of principal if
held to maturity. However, due to fluctuations in interest rates, the market
value of such securities may vary during the period a shareholder owns shares
representing an interest in the Fund. Certain government securities held by the
Fund may have remaining maturities exceeding 397 days if such securities provide
for adjustments in their interest rates not less frequently than annually and
the adjustments are sufficient to cause the securities to have market values,
after adjustment, which approximate their par values.
 
                       ADDITIONAL INVESTMENT INFORMATION
 
ILLIQUID SECURITIES AND RESTRICTED SECURITIES
 
    Each Fund may invest up to 10% of the value of its net assets in illiquid
securities. Illiquid securities include repurchase agreements with maturities
greater than seven days and securities that are restricted from sale to the
public without registration ("Restricted Securities") under the Securities Act
of 1933, as amended (the "1933 Act"), other than Restricted Securities that can
be offered and sold to qualified institutional buyers under Rule 144A under the
1933 Act ("144A Securities") or commercial paper sold without restriction
pursuant to Section 4(2) of the 1933 Act ("4(2) Commercial Paper") if such 144A
Securities or 4(2) Commercial Paper are determined to be liquid pursuant to
procedures approved by the Company's Board of Directors. Each Fund may invest in
144A Securities and 4(2) Commercial Paper determined to be liquid pursuant to
such procedures. The Board of Directors has delegated to the Adviser, subject to
the supervision of the Board of Directors, the daily function of determining and
monitoring the liquidity of 144A Securities. 144A Securities may become illiquid
if qualified institutional buyers are not interested in acquiring the
securities.
 
LOANS OF PORTFOLIO SECURITIES
 
    Each of the Money Market and Government Obligations Money Market Funds may
lend its securities to brokers, dealers, domestic and foreign banks or other
financial institutions for the purpose of increasing its net investment income.
These loans must be secured continuously by cash or equivalent collateral or by
a letter of credit at least equal to the market value of the securities loaned
plus accrued interest. As with other extensions of credit, there are risks of
delay in recovery or even loss of rights in collateral should the borrower of
the portfolio
 
                                       13
<PAGE>
securities fail financially. The Funds will not enter into securities loan
transactions exceeding in the aggregate 33 1/3% of the market value of a Fund's
total assets. For more detailed information about securities lending, see
"Investment Objectives and Policies" in the Statement of Additional Information.
 
MORTGAGE-BACKED SECURITIES
 
    The Money Market and Government Obligations Money Market Funds may invest in
mortgage-backed securities. Mortgage loans made by banks, savings and loan
institutions, and other lenders are often assembled into pools, the interests in
which are issued and guaranteed by an agency or instrumentality of the U.S.
Government, though not necessarily by the U.S. Government itself. Interests in
such pools are what this Prospectus calls "mortgage-backed securities."
 
    One such type of mortgage-backed security in which the Funds may invest is a
GNMA Certificate. GNMA Certificates are backed as to the timely payment of
principal and interest by the full faith and credit of the U.S. Government.
Another type is a FNMA Certificate. Principal and interest payments on FNMA
Certificates are guaranteed only by FNMA itself, not by the full faith and
credit of the U.S. Government. A third type of mortgage-backed security in which
such Funds may invest is a Federal Home Loan Mortgage Association ("FHLMC")
Participation Certificate. This type of security is guaranteed by FHLMC as to
timely payment of principal and interest but, like a FNMA security it is not
guaranteed by the full faith and credit of the U.S. Government. For a further
discussion of GNMA, FNMA and FHLMC, see "Mortgage-Related Debt Securities" in
the Statement of Additional Information.
 
    Each of the mortgage-backed securities described above is characterized by
monthly payments to the security holder, reflecting the monthly payments made by
the mortgagors of the underlying mortgage loans. The payments to the security
holders (such as a Fund), like the payments on the underlying loans, represent
both principal and interest. Although the underlying mortgage loans are for
specified periods of time, such as twenty or thirty years, the borrowers can,
and typically do, repay them sooner. Thus, the security holders frequently
receive prepayments of principal, in addition to the principal which is part of
the regular monthly payments. A borrower is more likely to prepay a mortgage
which bears a relatively high rate of interest. This means that, in times of
declining interest rates, some of a Fund's higher yielding securities might be
repaid and thereby converted to cash and the Fund will be forced to accept lower
interest rates when that cash is used to purchase additional securities. A Fund
normally will not distribute principal payments (whether regular or prepaid) to
its shareholders. Interest received by each Fund will, however, be distributed
to shareholders in the form of dividends.
 
REPURCHASE AGREEMENTS
 
    The Money Market and Government Obligations Money Market Funds may enter
into repurchase agreements with brokers, dealers or banks that meet the credit
guidelines of the Company's Board of Directors. In a repurchase agreement, a
Fund buys a security from a seller that has agreed to repurchase it at a
mutually agreed upon date and price, reflecting the interest rate effective for
the term of the agreement. The term of these agreements is usually from
overnight to one week and never exceeds one year. A repurchase agreement may be
viewed as a fully collateralized loan of money by a Fund to the seller. A Fund
always receives securities as collateral with a market value at least equal to
the purchase price, including accrued interest, and this value is maintained
during the term of the agreement. If the seller defaults and the collateral
value declines, a Fund
 
                                       14
<PAGE>
might incur a loss. If bankruptcy proceedings are commenced with respect to the
seller, the Fund's realization upon the collateral may be delayed or limited.
The aggregate of certain repurchase agreements and certain other investments is
limited as set forth under "Investment Limitations."
 
REVERSE REPURCHASE AGREEMENTS
 
    The Money Market and Government Obligations Money Market Funds may enter
into reverse repurchase agreements with brokers, dealers, banks or other
financial institutions that have been determined by the Adviser to be
creditworthy. In a reverse repurchase agreement, a Fund sells a security and
agrees to repurchase it at a mutually agreed upon date and price, reflecting the
interest rate effective for the term of the agreement. It may also be viewed as
the borrowing of money by the Fund. A Fund's investment of the proceeds of a
reverse repurchase agreement is a speculative factor known as leverage. A Fund
will enter into a reverse repurchase agreement only if the interest income from
investment of the proceeds is expected to be greater than the interest expense
of the transaction and the proceeds are invested for a period no longer than the
term of the agreement. A Fund will maintain with the Custodian a separate
account with a segregated portfolio of cash or other liquid securities in an
amount at least equal to its purchase obligations under these agreements
(including accrued interest). If interest rates rise during a reverse repurchase
agreement, it may adversely affect a Fund's ability to maintain a stable net
asset value. In the event that the buyer of securities under a reverse
repurchase agreement files for bankruptcy or becomes insolvent, the buyer or its
trustee or receiver may receive an extension of time to determine whether to
enforce a Fund's repurchase obligation, and the Fund's use of proceeds of the
agreement may effectively be restricted pending such decision. The aggregate of
these agreements is limited as set forth under "Investment Limitations."
 
    STAND-BY COMMITMENTS.  The Money Market and Tax-Free Money Market Funds may
each acquire "stand-by commitments" with respect to Municipal Obligations held
in its portfolio. Under a stand-by commitment, a dealer would agree to purchase
at a Fund's option specified Municipal Obligations at a specified price. The
acquisition of a stand-by commitment may increase the cost, and thereby reduce
the yield, of the Municipal Obligations to which such commitment relates. A Fund
will acquire stand-by commitments solely to facilitate portfolio liquidity and
does not intend to exercise its rights thereunder for trading purposes.
 
    VARIABLE RATE DEMAND NOTES.  The Money Market and Tax-Free Money Market
Funds may purchase variable rate demand notes, which are unsecured instruments
that permit the indebtedness thereunder to vary and provide for periodic
adjustment in the interest rate. Although the notes are not normally traded and
there may be no active secondary market in the notes, a Fund will be able (at
any time or during the specified periods not exceeding 397 days, depending upon
the note involved) to demand payment of the principal of a note. The notes are
frequently not rated by credit rating agencies, but notes not rated by S&P or
Moody's purchased by a Fund will have been determined by the Adviser to be of
comparable quality at the time of the purchase to rated instruments purchasable
by the Fund. Where necessary to ensure that a note is of sufficiently high
quality, a Fund will require that the issuer's obligation to pay the principal
of the note be backed by an unconditional bank letter or line of credit,
guarantee or commitment to lend. While there may be no active secondary market
with respect to a particular variable rate demand note purchased by a Fund, the
Fund may, upon the notice specified in the note, demand payment of the principal
of the note at any time or during specified periods not exceeding 397 days,
depending upon the instrument involved. The absence of such an active secondary
market, however, could make it difficult for a Fund to dispose of a variable
rate demand note if the issuer defaulted on its payment obligation or during the
periods that the Fund is not entitled to exercise its demand rights. A Fund
could, for this
 
                                       15
<PAGE>
or other reasons, suffer a loss to the extent of the default. A Fund will invest
in variable rate demand notes only when the Adviser deems the investment to
involve minimal credit risk and to otherwise satisfy applicable quality
standards. The Adviser also monitors the continuing creditworthiness of issuers
of such notes to determine whether a Fund should continue to hold such notes.
 
WHEN-ISSUED AND DELAYED DELIVERY SECURITIES
 
    The Money Market Fund and Government Obligations Money Market Fund may
purchase securities on a when-issued or delayed delivery basis. In such
transactions, instruments are bought with payment and delivery taking place in
the future in order to secure what is considered to be an advantageous yield or
price at the time of the transaction. Delivery of and payment for these
securities may take as long as a month or more after the date of the purchase
commitment but will take place no more than 120 days after the trade date. A
Fund will maintain with the Custodian a separate account with a segregated
portfolio of cash or liquid securities in an amount at least equal to these
commitments. The payment obligation and the interest rates that will be received
are each fixed at the time a Fund enters into the commitment, and no interest
accrues to the Fund until settlement. Thus, it is possible that the market value
at the time of settlement could be higher or lower than the purchase price if
the general level of interest rates has changed. It is a current policy of each
Fund not to enter into when-issued commitments or delayed delivery securities
exceeding, in the aggregate, 25% of the Fund's net assets other than the
obligations created by these commitments.
 
    QUALITY INFORMATION.  The Money Market Funds utilize the amortized cost
method of valuation in accordance with regulations issued by the SEC. See
"Valuation of Shares." Accordingly, each Fund will limit its portfolio
investments to those instruments which present minimal credit risks and which
are of eligible quality, as determined by the Adviser under the supervision of
the Board of Directors and in accordance with regulations of the SEC, as such
regulations may from time to time be amended. Eligible quality for this purpose
means a security (i) rated in one of the two highest rating categories by at
least two nationally recognized statistical rating organizations ("NRSROs")
assigning a rating to the security or issuer or, if only one rating organization
assigned a rating, by that rating organization or (ii) if unrated, determined to
be of comparable quality by the Adviser under the supervision of the Board of
Directors. Each of the Government Obligations Money Market and Money Market
Funds will not invest more than 5% of its total assets in securities of issuers
having the second highest rating from any NRSRO; and these Funds will not invest
more than the greater of one percent of its total assets or $1 million in
securities issued by an issuer, having at the time of acquisition or roll over,
the second highest rating from any NRSRO. The Tax-Exempt Money Market Fund will
not invest more than 5% of its total assets in conduit securities (not subject
to unconditional demand features) of issuers having the second highest rating
from any NRSRO. Additionally, the Tax-Exempt Money Market Fund will not invest
more than the greater of one percent of its total assets or $1 million in
conduit securities (not subject to unconditional demand features) of an issuer
which, at the time of acquisition or roll over, has the second highest rating
from an NRSRO. Among the criteria adopted by the Board of Directors, a Fund will
not purchase any bank or corporate obligation unless it is rated at least Aa or
Prime-1 by Moody's or AA, A-1+ or A-1 by S&P or, if not rated by S&P or Moody's,
it is determined to be of comparable quality by the Adviser under the
supervision of the Board of Directors. Ratings, however, are not the only
criteria utilized under the procedures adopted by the Board of Directors. For a
more detailed discussion of other quality requirements applicable to the Fund,
see "Description of Securities and Ratings" in the Statement of Additional
Information.
 
                                       16
<PAGE>
    These quality standards must be satisfied at the time an investment is made.
In the event that an investment held by the Fund is assigned a lower rating or
ceases to be rated, the Adviser, under the supervision of the Board of
Directors, will promptly reassess whether such security presents minimal credit
risks and whether the Fund should continue to hold the security in its
portfolio. If a portfolio security no longer presents minimal credit risks, is
in default or its rating is downgraded to below the second highest rating
category, the Fund will dispose of the security as soon as reasonably
practicable unless the Board of Directors determines that to do so is not in the
best interests of the Fund.
 
                             INVESTMENT LIMITATIONS
 
    Each Fund is a diversified investment company under the Investment Company
Act of 1940, as amended (the "1940 Act"), and is subject to the following
limitations: (a) as to 75% of its total assets, the Fund may not invest more
than 5% of its total assets in the securities of any one issuer, except
obligations of the U.S. Government, its agencies and instrumentalities, and (b)
the Fund may not own more than 10% of the outstanding voting securities of any
one issuer. Under regulations applicable to money Market Funds, however, a Fund
may invest more than 5% of its assets in any one issuer of "first tier"
securities for no more than three days.
 
    The Money Market Funds also operate under certain investment restrictions
that are deemed fundamental policies and may be changed by a Fund only with the
approval of the holders of a majority of the Fund's outstanding shares. In
addition to other restrictions listed in the Statement of Additional
Information, a Fund may not (i) enter into repurchase agreements with more than
seven days to maturity if, as a result, more than 10% of the market value of its
total assets would be invested in these agreements and other investments for
which market quotations are not readily available or which are otherwise
illiquid; or (ii) invest more than 25% of the Fund's total assets in securities
of companies in any one industry, except that there is no limitation with
respect to investments in securities issued or guaranteed by the U.S.
Government, its agencies or instrumentalities or, for the Money Market Fund,
obligations of U.S. banks or their domestic branches.
 
                           MANAGEMENT OF THE COMPANY
 
    INVESTMENT ADVISER.  Morgan Stanley Asset Management Inc. (the "Adviser") is
the investment adviser and administrator of the Company and each of its Money
Market Funds. The Adviser provides investment advice and portfolio management
services pursuant to an investment advisory agreement (the "Investment Advisory
Agreement") and, subject to the supervision of the Company's Board of Directors,
makes each of the Fund's investment decisions, arranges for the execution of
portfolio transactions and generally manages each of the Fund's investments. The
Adviser is entitled to receive from each Fund an annual management fee, payable
monthly, equal to the percentages of average daily net assets set forth in the
table below. However, the Adviser will waive a portion of its fees and/or
reimburse expenses of a Fund, if necessary, if such fees or expenses would cause
total annual operating expenses of the Fund to exceed the maximum set forth in
"Fund Expenses."
 
<TABLE>
<CAPTION>
                                                                                   ASSETS ABOVE
                                                                   ASSETS UP TO   $250 MILLION UP  ASSETS EXCEEDING
                                                                   $250 MILLION   TO $500 MILLION    $500 MILLION
                                                                   -------------  ---------------  -----------------
<S>                                                                <C>            <C>              <C>
Money Market Fund................................................        0.45%           0.40%             0.35%
Tax-Free Money Market Fund.......................................        0.45%           0.40%             0.35%
Government Obligations Money Market Fund.........................        0.45%           0.40%             0.35%
</TABLE>
 
                                       17
<PAGE>
    The Adviser, with principal offices at 1221 Avenue of the Americas, New
York, NY 10020, conducts a worldwide portfolio management business. It provides
a broad range of portfolio management services to customers in the United States
and abroad. At September 30, 1996, the Adviser together with its affiliated
asset management companies managed investments totaling approximately $103.5
billion, including approximately $86.5 billion under active management and $17
billion as Named Fiduciary or Fiduciary Adviser. See "Management of the Company
- -- Investment Advisory and Administrative Agreements" in the Statement of
Additional Information.
 
    On October 31, 1996, MSGI purchased the parent company of Van Kampen
American Capital, Inc., which in turn is the parent company of VKAC
Distributors. Van Kampen American Capital, Inc. is the fourth largest
non-proprietary mutual fund provider in the United States with approximately $59
billion in assets under management or supervision as of September 30, 1996.
 
    The Money Market Funds have adopted a plan of distribution pursuant to Rule
12b-1 (the "Plan") under the 1940 Act. Under the Plan, which is described in
more detail under "Distributor" below, the Distributor is entitled to receive
from each Money Market Fund payments of 0.50% of such Fund's annual average net
assets. The Plan recognizes that, in addition to such payments, the Adviser may
use its advisory fees or other resources to pay expenses associated with
activities which might be construed to be financing the sale of these Money
Market Funds' shares. The Plan provides that the Adviser may make payments from
these sources to third parties, such as consultants that provide assistance in
the distribution effort (in addition to selling shares and providing shareholder
services).
 
    ADMINISTRATOR.  The Administrator also provides the Company with
administrative services pursuant to an administration agreement (the
"Administration Agreement"). The services provided under the Administration
Agreement are subject to the supervision of the officers and Board of Directors
of the Company and include day-to-day administration of matters related to the
corporate existence of the Company, maintenance of its records, preparation of
reports, supervision of the Company's arrangements with its custodian and
assistance in the preparation of the Company's registration statements under
federal and state laws. The Administration Agreement also provides that the
Administrator through its agents will provide the Company dividend disbursing
and transfer agent services. For its services as Administrator under the
Administration Agreement, the Company pays the Administrator a monthly fee which
on an annual basis equals 0.10% of the first $200 million of the Funds' average
daily net assets, 0.075% on the next $200 million of average daily net assets,
0.05% on the next $200 million of average daily net assets, and 0.03% on the
average daily net assets over $600 million of each Fund.
 
    Under an agreement between the Administrator and The Chase Manhattan Bank
("Chase"), Chase Global Funds Services Company ("CGFSC"), a corporate affiliate
of Chase, provides certain administrative services to the Company. The
Administrator supervises and monitors such administrative services provided by
CGFSC. The services provided under the administration agreement are subject to
the supervision of the Board of Directors of the Company. The Board of Directors
of the Company has approved the provision of services described above pursuant
to the Administration Agreement as being in the best interests of the Company.
PFPC, Inc., under an agreement with the Administrator, will perform as
sub-transfer agent and dividend disbursing agent for Prime Resource Account
holders. ACCESS, under an agreement with the Administrator, will perform as
sub-transfer agent and dividend disbursing agent for all other shareholders. For
additional information on the Administration Agreement, see "Management of the
Company" in the Statement of Additional Information.
 
                                       18
<PAGE>
    DIRECTORS AND OFFICERS.  Pursuant to the Company's Articles of
Incorporation, the Board of Directors decides upon matters of general policy and
reviews the actions of the Company's Adviser, Administrator and Distributor. The
Officers of the Company conduct and supervise its daily business operations.
 
    DISTRIBUTOR.  Van Kampen American Capital, Inc. ("VKAC Distributors" or the
"Distributor") serves as the Distributor of the shares of the Company. Under its
distribution agreement (the "Distribution Agreement") with the Company, VKAC
Distributors sells shares of the Company upon the terms and at the current
offering price described in this Prospectus. VKAC Distributors is not obligated
to sell any specific number of shares of the Company.
 
    Each Fund currently offers only one class of shares. The Company may in the
future offer one or more classes of shares for each Fund that may have different
sales charges or other distribution charges or a combination thereof than the
class currently offered.
 
    The Board of Directors of the Company has approved and adopted the
Distribution Agreement for the Company and a Plan for the Money Market Funds
pursuant to Rule 12b-1 under the 1940 Act. Under the Plan, the Distributor is
entitled to receive from these Money Market Funds a distribution fee, which is
accrued daily and paid monthly, of 0.50% for each of the Money Market Funds on
an annualized basis of the average daily net assets of such Fund. The
Distributor expects to reallocate most of its fee to investment dealers, banks
or financial services firms that provide distribution, administrative or
shareholder services ("Participating Dealer"). The actual amount of such
compensation is agreed upon by the Company's Board of Directors and by the
Distributor. The Distributor may, in its discretion, voluntarily waive from time
to time all or any portion of its distribution fee and the Distributor is free
to make additional payments out of its own assets to promote the sale of Company
shares.
 
    The Plan obligates the Money Market Funds to accrue and pay to the
Distributor the fee agreed to under its Distribution Agreement. The Plan does
not obligate the Money Market Funds to reimburse VKAC Distributors for the
actual expenses VKAC Distributors may incur in fulfilling its obligations under
the Plan. Thus, under the Plan, even if VKAC Distributors' actual expenses
exceed the fee payable to it thereunder at any given time, the Money Market
Funds will not be obligated to pay more than that fee. If VKAC Distributors'
actual expenses are less than the fee it receives, VKAC Distributors will retain
the full amount of the fee.
 
    The Plan, under the terms of Rule 12b-1, will remain in effect only if
approved at least annually by the Company's Board of Directors, including those
directors who are not "interested persons" of the Company as that term is
defined in the 1940 Act and who have no direct or indirect financial interest in
the operation of the Plan or in any agreements related thereto ("12b-1
Directors"). The Plan may be terminated at any time by a vote of a majority of
the 12b-1 Directors or by a vote of a majority of the outstanding voting
securities of the applicable class of a Fund. The fee set forth above will be
paid by the Fund to VKAC Distributors unless and until the Plan is terminated or
not renewed. The Company intends to operate the Plan in accordance with its
terms and the NASD Rules concerning sales charges.
 
    PAYMENTS TO FINANCIAL INSTITUTIONS.  The Adviser or its affiliates may
compensate certain financial institutions for the continued investment of their
customers' assets in the Money Market Funds pursuant to the advice of such
financial institutions. These payments will be made directly by the Adviser or
its affiliates from their assets, and will not be made from the assets of the
Company or by the assessment of a sales charge on shares.
 
                                       19
<PAGE>
Such financial institutions may also perform certain shareholder or
recordkeeping services that would otherwise be performed by CGFSC. The Adviser
may elect to enter into a contract to pay the financial institutions for such
services.
 
    EXPENSES.  The Money Market Funds are responsible for payment of certain
other fees and expenses (including professional fees, custodial fees and
printing and mailing costs) specified in the Administration and Distribution
Agreements.
 
                               PURCHASE OF SHARES
 
    GENERAL.  The Company offers one class of shares to the public on a
continuous basis through the Distributor as principal underwriter, which is
located at One Parkview Plaza, Oakbrook Terrace, Illinois 60181. Shares are also
offered through members of the NASD who are acting as securities dealers
("dealers") and NASD members or eligible non-NASD members who are acting as
brokers or agents for investors ("brokers"). The term "dealers" and "brokers"
are sometimes referred to herein as "Participating Dealers." Shares are also
offered through Morgan Stanley & Co. to Prime Resource Account Holders.
 
    Shares are sold without a front-end sales load on a continuous basis by the
Distributor. The minimum initial investment is $500, except that the minimum
initial investment amount for individual retirement accounts ("IRAs") is $250.
The minimum for subsequent investments is $25 and there is no minimum for
automatic reinvestment of dividends and distributions. The Distributor may waive
the $500 minimum in its sole discretion. The Company in its sole discretion may
accept or reject any order for purchases of shares.
 
                  PURCHASES BY PRIME RESOURCE ACCOUNT HOLDERS
 
    GENERAL.  Prime Resource Account Holders are account holders who open a
prime resource account with the Distributor. A prime resource account is a cash
management account offering such features as check writing privileges, automatic
sweep of all cash balances into a Money Market Fund and a Visa Gold credit card.
Pursuant to the sweep feature, Prime Resource Account Holders will be permitted
to purchase shares of the Money Market Funds. Prime resource accounts are
available only to clients of broker-dealers who use the Morgan Stanley & Co. as
their clearing firm. Investors may purchase shares through an account maintained
by the investor with his brokerage firm (the "Account").
 
    All payments for initial and subsequent investments should be in U.S.
Dollars. Purchases will be effected at the net asset value next determined after
PFPC, Inc. (the "Sub-Transfer Agent"), has received a purchase order in proper
form and the Company's custodian has Federal Funds immediately available to it.
 
    PURCHASES THROUGH A PRIME RESOURCE ACCOUNT.  Share purchases may be effected
through an investor's Account with his broker through procedures established in
connection with the requirements of Accounts at such broker.
 
    In such event, beneficial ownership of shares will be recorded by the broker
and will be reflected in the Account statements provided by the broker to such
investors. A broker may impose minimum investor Account requirements. Although a
broker does not impose a sales charge for purchases of shares, depending on the
terms of an investor's Account with his broker, the broker may charge an
investor's Account fees for automatic
 
                                       20
<PAGE>
investment and other service provided to the Account. Information concerning
Account requirements, services and charges should be obtained from an investor's
broker. This Prospectus should be read in conjunction with any information
received from a broker.
 
    A broker may offer investors maintaining Accounts the ability to purchase
shares under an automatic purchase program (a "Purchase Program") established by
a participating broker. An investor who participates in a Purchase Program will
have his "free-credit" cash balances in his Account automatically invested in
shares of the Fund which he has designated (the "Designated Fund") under the
Purchase Program. The frequency of investments and the minimum investment
requirement will be established by the broker and the Company. In addition, the
broker may require a minimum amount of cash and/or securities to be deposited in
an Account for participants in its Purchase Program. The description of the
particular broker's Purchase Program should be read for details, and any
inquiries concerning an Account under a Purchase Program should be directed to
the broker. A participant in a Purchase Program may change the designation Fund
at any time by so instructing his broker.
 
    If a broker makes special arrangements under which orders for shares are
received by the Sub-Transfer Agent prior to 12:00 noon (Eastern Time) on any day
that the New York Stock Exchange (the "NYSE") and Federal Reserve Banks are open
for business (a "Business Day"), and the broker guarantees that payment for such
shares will be made in Federal Funds to the Company's custodian prior to 4:00
p.m. (Eastern Time), on the same day, such purchase orders will be effective,
and shares will be purchased at the offering price in effect, as of 12:00 p.m.
(Eastern Time) on the date the purchase order is received by the Sub-Transfer
Agent. Purchase orders received after 12:00 p.m. (Eastern Time) and prior to
4:00 p.m. (Eastern Time), on any Business Day for which payment in Federal Funds
has been received by 4:00 p.m. (Eastern Time), will be effective, and shares
will be purchased at the offering price in effect, as of 4:00 p.m. (Eastern
Time) the same day.
 
    FOR PRIME RESOURCE ACCOUNT HOLDERS, INFORMATION ON EACH MONEY MARKET FUND
CAN BE OBTAINED BY CALLING THE SUB-TRANSFER AGENT AT 1-800-533-7719.
 
                      PURCHASES BY ALL OTHER SHAREHOLDERS
 
    GENERAL.  Shares of the Company may be purchased on any business day through
Participating Dealers. Shares may also be purchased by completing the
application accompanying this Prospectus and forwarding the application, through
the Participating Dealer, to the shareholder service agent, ACCESS Investor
Services, Inc., a wholly-owned subsidiary of Van Kampen American Capital, Inc.
("ACCESS").
 
    The price paid for shares purchased is based on the next calculation of net
asset value after an order is received by a Participating Dealer and transmitted
to the Distributor. If the Distributor receives a purchase order prior to 12:00
noon (Eastern Time) and receives payment in Federal funds prior to 4:00 p.m.
(Eastern Time) on any day that the New York Stock Exchange (the "NYSE") and
Federal Reserve Banks are open for business (a "Business Day"), shares will be
purchased at the offering price in effect, as of 12:00 p.m. (Eastern Time) on
the date the purchase order is received by a Participating Dealer. Purchase
orders received after 12:00 p.m. (Eastern Time) and prior to 4:00 p.m. (Eastern
Time), on any Business Day for which payment in Federal Funds has been received
by 4:00 p.m. (Eastern Time), will be effective, and shares will be purchased at
the offering price in effect, as of 4:00 p.m. (Eastern Time) the same day
provided such order is transmitted to the Distributor prior to the Distributor's
close of business on such day. Orders received by Participating Dealers
 
                                       21
<PAGE>
after the close of the NYSE are priced based on the net asset value calculated
after the next day's close provided they are received by the Distributor prior
to the Distributor's close of business on such day. It is the responsibility of
Participating Dealers to transmit orders received by them to the Distributor so
they will be received prior to such time. Orders of less than $500 are mailed by
the Participating Dealer and processed at the offering price next calculated
after acceptance by ACCESS.
 
OTHER PURCHASE INFORMATION
 
    Orders for the purchase of shares of the Money Market Funds become effective
on the Business Day that Federal Funds are received, and the purchase will be
effected at the net asset value next computed after receipt of Federal Funds.
Purchase of shares of the Money Market Funds by check is credited to your
account at the price next determined after receipt of Federal Funds on the day
of receipt and will begin receiving dividends the following day. If you purchase
shares of a Fund directly, you must make payment by check or Federal Funds to
effect your purchase of the shares and obtain the price for the shares as
described above. Purchasing shares of a Fund is different from placing a trade
for securities at a given price and having a certain number of days in which to
make settlement or payment for the securities.
 
    To ensure that checks are collected by the Company, withdrawals of
investments made by check are not presently permitted until the Company's
depository bank has made fully available for withdrawal the check amount used to
purchase Company shares, which generally will be within 15 days. As a condition
of this offering, if a purchase is canceled due to nonpayment or because your
check does not clear, you will be responsible for any loss the Company and/or
its agents incur. If you are already a shareholder, the Company may redeem
shares from your account(s) to reimburse the Company and/or its agents for any
loss. In addition, you may be prohibited or restricted from making future
purchases in the Company.
 
    SHAREHOLDER SERVICES RELATED TO PURCHASES (Shareholders Other Than Prime
Resource Account Holders). The Company offers a number of shareholder services
designed to facilitate investment in its shares at little or no extra cost to
the investor. Below is a description of such services. Unless otherwise
described below, each of these services may be modified or terminated by the
Company at any time.
 
    INVESTMENT ACCOUNT.  ACCESS Investor Services, Inc. ("ACCESS"), transfer
agent for the Company and a wholly-owned subsidiary of Van Kampen American
Capital, Inc. performs bookkeeping, data processing and administration services
related to the maintenance of shareholder accounts. Each shareholder has an
investment account under which shares are held by ACCESS. Except as described
herein, after each share transaction in an account, the shareholder receives a
statement showing the activity in the account. Each shareholder will receive
statements at least quarterly from ACCESS showing any reinvestments of dividends
and capital gains distributions and any other activity in the account since the
preceding statement. Such shareholders also will receive separate confirmations
for each purchase or sale transaction other than reinvestment of dividends and
capital gains distributions and systematic purchases or redemptions. Additions
to an investment account may be made at any time by purchasing shares through
authorized brokers, dealers or financial intermediaries or by mailing a check
directly to ACCESS.
 
    REINVESTMENT PLAN.  A convenient way for investors to accumulate additional
shares is by accepting dividends and capital gains distributions in shares of
the applicable Fund. Such shares are acquired at net asset value on the record
date of such dividend or distribution. Unless the shareholder instructs
otherwise, the reinvestment plan is automatic. This instruction may be made by
telephone by calling (800) 282-4404 or
 
                                       22
<PAGE>
(800) 772-8889 for the hearing impaired, or in writing to ACCESS. The investor
may, on the initial application or prior to any declaration, instruct that
dividends be paid in cash and capital gains distributions be reinvested at net
asset value, or that both dividends and capital gains distributions be paid in
cash. For further information, see "Dividends and Distributions."
 
    AUTOMATIC INVESTMENT PLAN.  An automatic investment plan is available under
which a shareholder can authorize ACCESS to charge a bank account on a regular
basis to invest pre-determined amounts in the Fund. Additional information is
available from the Distributor or authorized brokers, dealers or financial
intermediaries.
 
    DIVIDEND DIVERSIFICATION.  A shareholder may, upon written request or by
completing the appropriate section of the application form accompanied by this
Prospectus or by calling (800) 282-4404 or (800) 772-8889 for the hearing
impaired, elect to have all dividends and other distributions paid on a class of
shares of the Company invested into shares of the same class of any other Fund,
so long as a pre-existing account for such class of shares exists for such
shareholder. Both accounts must also be of the same type, either non-retirement
or retirement. Any two non-retirement accounts can be used. If the accounts are
retirement accounts, they must both be for the same class and of the same type
of retirement plan (e.g. IRA, 403(b)(7), 401(k), Keogh) and for the benefit of
the same individual.
 
    If the qualified pre-existing account does not exist, the shareholder must
establish a new account subject to minimum investment and other requirements of
the fund into which distributions would be invested. Distributions are invested
into the selected fund at its net asset value as of the payable date of the
distribution only if shares of such selected fund have been registered for sale
in the investor's state.
 
    FOR SHAREHOLDERS, OTHER THAN PRIME RESOURCE ACCOUNT HOLDERS, INFORMATION ON
EACH MONEY MARKET FUND CAN BE OBTAINED BY CALLING THE TRANSFER AGENT AT
1-800-282-4404.
 
                              REDEMPTION OF SHARES
          REDEMPTIONS BY MORGAN STANLEY PRIME RESOURCE ACCOUNT HOLDERS
 
REDEMPTION PROCEDURES
 
    Redemption orders are effected at the net asset value per share next
determined after receipt of the order in proper form by the Sub-Transfer Agent.
Investors may redeem all or some of their shares in accordance with one of the
procedures described below.
 
    REDEMPTION OF SHARES IN A PRIME RESOURCE ACCOUNT.  An investor who
beneficially owns shares may redeem such shares in his Account in accordance
with instructions and limitations pertaining to his Account by contacting his
broker. If such notice is received by the Sub-Transfer Agent by 12:00 noon
(Eastern Time) on any Business Day, the redemption will be effective as of 12:00
noon (Eastern Time) on that day. Payment of the redemption proceeds will be made
after 12:00 noon (Eastern Time) on the day the redemption is effected, provided
that the Custodian Bank is open for business. If the Custodian Bank is not open,
payment will be made on the next bank business day. If the redemption request is
received after 12:00 noon but before 4:00 p.m. (Eastern Time), the redemption
will be effected as of 4:00 p.m. (Eastern Time) on that day and payment of the
redemptions proceeds will be made after 12:00 noon (Eastern Time) on the next
Business Day after the
 
                                       23
<PAGE>
redemption is effected, provided that the Custodian Bank is open for business.
If the Custodian Bank is not open, payment will be made on the next bank
business day. If all shares are redeemed, all accrued but unpaid dividends on
those shares will be paid with the redemption proceeds.
 
    An investor's brokerage firm will also redeem each day a sufficient number
of shares of the Designated Fund to cover debit balances created by transactions
in the Account or instructions for cash disbursements. Fund shares will be
redeemed on the same day that a transaction occurs that results in such a debit
balance or charge.
 
    Each brokerage firm reserves the right to waive or modify criteria for
participation in an Account or to terminate participation in an Account for any
reason.
 
    REDEMPTION BY CHECK.  Upon request, the Company will provide any Prime
Resource Account Holder with forms of drafts ("checks") payable through PNC
Bank, N.A. (the "Custodian Bank"). These checks may be made payable to the order
of anyone. The minimum amount of a check is $500. An investor wishing to use
this check writing redemption procedure should complete specimen signature
cards, and then forward such signature cards to the investor's broker or in
accordance with the broker's instructions. Upon receipt, the Sub-Transfer Agent
will then arrange for the checks to be honored by the Custodian Bank. Investors
who own shares through an Account should contact their brokers for signature
cards. Investors with joint accounts may elect to have checks honored with a
single signature. Check redemptions will be subject to the Custodian Bank's
rules governing checks. An investor will be able to stop payment on a check
redemption. The Company or Sub-Transfer Agent may terminate this redemption
service at any time, and shall not incur any liability for honoring checks, for
effecting redemptions to pay checks, or for returning checks which have not been
accepted.
 
    When a check is presented to the Bank for clearance, the Bank, as the
investor's agent, will cause the Company to redeem a sufficient number of full
and fractional shares owned by the investor to cover the amount of the check.
This procedure enables the investor to continue to receive dividends on those
shares equaling the amount being redeemed by check until such time as the check
is presented to the Bank. Checks may not be presented for cash payment at the
offices of the Bank because, under 1940 Act rules, redemptions may be effected
only at the redemption price next determined after the redemption requested is
presented to the Transfer Agent or Sub-Transfer Agent. This limitation does not
affect checks used for the payment of bills or to obtain cash at other banks.
 
                      REDEMPTION BY ALL OTHER SHAREHOLDERS
 
    Shareholders may redeem for cash some or all of their shares without charge
by the Company at any time by sending a written request in proper form directly
to the Fund c/o ACCESS, P.O. Box 418256, Kansas City, Missouri 64141-9256, by
placing the redemption request through Participating Dealer or by calling the
Company.
 
    WRITTEN REDEMPTION REQUESTS.  In the case of redemption requests sent
directly to ACCESS, the redemption request should indicate the number of shares
or dollars to be redeemed, the account number and be signed exactly as the
shares are registered. Signatures must conform exactly to the account
registration. If the proceeds of the redemption would exceed $50,000, or if the
proceeds are not to be paid to the record owner at the record address, or if the
record address has changed within the previous 30 days, signature(s) must be
guaranteed by one of the following: a bank or trust company; a broker-dealer; a
credit union; a national securities exchange, registered securities association
or clearing agency; a savings and loan association; or a federal savings
 
                                       24
<PAGE>
bank. If certificates are held for the shares being redeemed, such certificates
must be endorsed for transfer or accompanied by an endorsed stock power and sent
with the redemption request. In the event the redemption is requested by a
corporation, partnership, trust, fiduciary, executor or administrator, and the
name and title of the individual(s) authorizing such redemption is not shown in
the account registration, a copy of the corporate resolution or other legal
documentation appointing the authorized signer and certified within the prior 60
days must accompany the redemption request. The redemption price is the net
asset value per share next determined after the request is received by ACCESS in
proper form. Payment for shares redeemed will ordinarily be made by check mailed
within seven business days after acceptance by ACCESS of the request and any
other necessary documents in proper order. Such payments may be postponed or the
right of redemption suspended as provided by the rules of the SEC. If the shares
to be redeemed have been recently purchased by check, ACCESS may delay mailing a
redemption check until it confirms that the purchase check has cleared, usually
a period of up to 15 days. Any gain or loss realized on the redemption of shares
is a taxable event.
 
    DEALER REDEMPTION REQUESTS.  Shareholders may sell shares through their
securities dealer, who will telephone the request to the Distributor. Orders
received from dealers must be at least $500 unless transmitted via the FUNDSERV
network. The redemption price for such shares is the net asset value next
calculated after an order is received by a dealer provided such order is
transmitted to the Distributor prior to the Distributor's close of business on
such day. It is the responsibility of dealers to transmit redemption requests
received by them to the Distributor so they will be received prior to such time.
Any change in the redemption price due to failure of the Distributor to receive
a sell order prior to such time must be settled between the shareholder and
dealer. Shareholders must submit a written redemption request in proper form (as
described above under "Written Redemption Requests") to the dealer within three
business days after calling the dealer with the sell order. Payment for shares
redeemed will ordinarily be made by check mailed within three business days to
the dealer.
 
    TELEPHONE REDEMPTION REQUESTS.  The Company permits redemption of shares by
telephone and for redemption proceeds to be sent to the address of record for
the account or to the bank account of record as described below. To establish
such privilege, a shareholder must complete the appropriate section of the
application accompanying this Prospectus or call the Company at (800) 282-4404
or (800) 772-8889 for the hearing impaired, to request that a copy of the
Telephone Redemption Authorization form be sent to them for completion. To
redeem shares, contact the telephone transaction line at (800) 421-5684. The
Distributor and the Company employ procedures considered by them to be
reasonable to confirm that instructions communicated by telephone are genuine.
Such procedures include requiring certain personal identification information
prior to acting upon telephone instructions, tape recording telephone
communications, and providing written confirmation of instructions communicated
by telephone. If reasonable procedures are employed, a shareholder agrees that
neither the Distributor nor the Company will be liable for following
instructions which it reasonably believes to be genuine. The Distributor and the
Company may be liable for any losses due to unauthorized or fraudulent
instructions if reasonable procedures are not followed. Telephone redemptions
may not be available if the shareholder cannot reach ACCESS by telephone,
whether because all telephone lines are busy or for any other reason; in such
case, a shareholder would have to use the Company's other redemption procedures
previously described. Requests received by ACCESS prior to 4:00 p.m., Eastern
Time, on a regular business day will be processed at the net asset value per
share determined that day. These privileges are available for all accounts other
than retirement accounts. The telephone redemption privilege is not available
for shares represented by certificates. If the shares to be redeemed have been
recently purchased by check, ACCESS may
 
                                       25
<PAGE>
delay mailing a redemption check or wiring redemption proceeds until it confirms
that the purchase check has cleared, usually a period of up to 15 days. If an
account has multiple owners, ACCESS may rely on the instructions of any one
owner.
 
    For redemptions authorized by telephone, amounts of $50,000 or less may be
redeemed daily if the proceeds are to be paid by check sent to the shareholders'
address of record and amounts of at least $1,000 and up to $1 million may be
redeemed daily if the proceeds are to be paid by wire sent to the shareholder's
bank account of record. The proceeds must be payable to the shareholder(s) of
record. Proceeds from redemptions to be paid by check will ordinarily be mailed
within three business days to the shareholder's address of record. Proceeds from
redemptions to be paid by wire will ordinarily be wired on the next business day
to the shareholder's bank account of record. This privilege is not available if
the address of record has been changed within 30 days prior to a telephone
redemption request. The Company reserves the right at any time to terminate,
limit or otherwise modify this telephone redemption privilege.
 
    GENERAL REDEMPTION INFORMATION.  The Company may redeem any shareholder
account with a net asset value on the date of the notice of redemption less than
the minimum investment as specified by the Directors. At least 60 days' advance
written notice of any such involuntary redemption is required and the
shareholder is given an opportunity to purchase the required value of additional
shares at the next determined net asset value. Any involuntary redemption may
only occur if the shareholder account is less than the minimum investment due to
shareholder redemptions.
 
    IRA redemption requests should be sent to the IRA custodian to be forwarded
to ACCESS. Where Van Kampen American Capital Trust Company serves as IRA
Custodian, special IRA, 403(b)(7), or Keogh redemption forms must be obtained
from and be forwarded to Van Kampen American Capital Trust Company, P.O. Box
944, Houston, Texas 77001-0944. Contact the custodian for information.
 
    FOR SHARES HELD IN BROKER STREET NAME, YOU CANNOT REQUEST REDEMPTION BY
TELEPHONE OR BY MAIL; SUCH SHARES MAY BE REDEEMED ONLY BY CONTACTING YOUR
PARTICIPATING DEALER.
 
    SHARE CERTIFICATES.  Generally, the Company will not issue share
certificates. However, upon written or telephone request to the Company, a share
certificate will be issued, representing shares (with the exception of
fractional shares) of the Company. A shareholder will be required to surrender
such certificates upon redemption or transfer thereof. In addition, if such
certificates are lost the shareholder must write to the Morgan Stanley Fund c/o
ACCESS, P.O. Box 418256, Kansas City, MO 64141-9256, requesting an "affidavit of
loss" and to obtain a Surety Bond in a form acceptable to ACCESS. On the date
the letter is received ACCESS will calculate a fee for replacing the lost
certificate equal to no more than 2.00% of the net asset value of the issued
shares and bill the party to whom the replacement certificate was mailed.
 
SYSTEMATIC WITHDRAWAL PLAN
 
    A shareholder, other than a Prime Resource Account Holder, whose shares in a
single account total $10,000 or more at the offering price next computed after
receipt of instructions may establish a monthly, quarterly, semi-annual or
annual withdrawal plan. This plan provides for the orderly use of the entire
account, not only the income but also the principal, if necessary. Each
withdrawal constitutes a redemption of shares on which taxable gain or loss will
be recognized. The plan holder may arrange for monthly, quarterly, semi-annual,
or annual checks in any amount not less than $25.
 
                                       26
<PAGE>
    Under the plan, sufficient shares of the Company are redeemed to provide the
amount of the periodic withdrawal payment. Dividends and capital gains
distributions on shares held under the plan are reinvested in additional shares
at the next determined net asset value. If periodic withdrawals continuously
exceed reinvested dividends and capital gains distributions, the shareholder's
original investment will be correspondingly reduced and ultimately exhausted.
The Company reserves the right to amend or terminate the systematic withdrawal
program on thirty days' notice to its shareholders.
 
    AUTOMATED CLEARING HOUSE ("ACH") DEPOSITS.  A shareholder, other than a
Prime Resource Account Holder, can use ACH to have redemption proceeds deposited
electronically into their bank accounts. Redemptions transferred to a bank
account via the ACH plan are available to be credited to the account on the
second business day following normal payment. In order to utilize this option,
the shareholder's bank must be a member of Automated Clearing House. In
addition, the shareholder must fill out the appropriate section of the account
application. The shareholder must also include a voided check or deposit slip
from the bank account into which redemptions are to be deposited together with
the completed application. Once ACCESS has received the application and the
voided check or deposit slip, such shareholder's designated bank account,
following any redemption, will be credited with the proceeds of such redemption.
Once enrolled in the ACH plan, a shareholder may terminate participation at any
time by writing to ACCESS or by calling (800) 282-4404. A shareholder's bank may
charge a fee for this transfer.
 
                              SHAREHOLDER SERVICES
 
TRANSFER OF REGISTRATION
 
    You may transfer the registration of any of your Company shares to another
person by writing to the Fund
c/o ACCESS, P.O. Box 418256, Kansas City, Missouri 64141-9256. As in the case of
redemptions, the written request must be received in "good order" before any
transfer can be made. Shares held in broker street name may be transferred only
by contacting your Participating Dealer.
 
    RETIREMENT PLANS.  Eligible investors may establish individual retirement
accounts ("IRAs"); SEP; and pension and profit sharing plans; 401(k) plans; or
Section 403(b)(7) plans in the case of employees of public school systems and
certain non-profit organizations. Documents and forms containing detailed
information regarding these plans are available from the Distributor. Van Kampen
American Capital Trust Company serves as custodian under the IRA, 403(b)(7) and
Keogh plans. Details regarding fees, as well as full plan administration for
profit sharing, pension and 401(k) plans, are available from the Distributor.
 
    EXCHANGE PRIVILEGE.  Shares of the Company may be exchanged with shares of
another Money Market Fund, subject to certain limitations. SHAREHOLDERS MAY ONLY
EXCHANGE INTO SUCH OTHER FUNDS AS ARE LEGALLY AVAILABLE FOR SALE IN THEIR STATE.
 
    To be eligible for exchange, shares of a Fund generally must have been
registered in the shareholder's name for at least 30 days prior to an exchange.
Shares of a Fund registered in a shareholder's name for less than 30 days may
only be exchanged upon receipt of prior approval of the Adviser. Under normal
circumstances, it is the policy of the Adviser not to approve such requests.
 
                                       27
<PAGE>
    Exchanges of shares are sales and may result in a gain or loss for federal
income tax purposes. If the shares exchanged have been held for less than 91
days, the sales charge paid on such shares is not included in the tax basis of
the exchanged shares, but is carried over and included in the tax basis of the
shares acquired.
 
    A shareholder wishing to make an exchange may do so by sending a written
request to ACCESS or by contacting the telephone transaction line at (800)
421-5684 or (800) 772-8889 for the hearing impaired. A shareholder automatically
has telephone exchange privileges unless otherwise designated in the application
form accompanied by this Prospectus. The exchange will take place at the
relative net asset values of the shares next determined after receipt of such
request. Any shares exchanged begin earning dividends on the next business day
after the exchange is affected. Van Kampen American Capital and its
subsidiaries, including ACCESS (collectively, "VKAC"), and the Company employ
procedures considered by them to be reasonable to confirm that instructions
communicated by telephone are genuine. Such procedures include requiring certain
personal identification information prior to acting upon telephone instructions,
tape recording telephone communications, and providing written confirmation of
instructions communicated by telephone. If reasonable procedures are employed, a
shareholder agrees that neither the Distributor nor the Company will be liable
for following telephone instructions which it reasonably believes to be genuine.
If the exchanging shareholder does not have an account in the Fund whose shares
are being acquired, a new account will be established with the same
registration, dividend and capital gains options (except dividend
diversification options) and broker, dealer or financial intermediary of record
as the account from which shares are exchanged, unless otherwise specified by
the shareholder. In order to establish a systematic withdrawal plan for the new
account or dividend diversification options for the new account, an exchanging
shareholder must file a specific written request. The Company reserves the right
to reject any order to acquire its shares through exchange. In addition, the
Company may restrict or terminate the exchange privilege at any time on 60 days'
notice to its shareholders of any termination or material amendment.
 
VALUATION OF SHARES
 
    The net asset value per share of each of the Money Market Funds is
determined at 12:00 p.m. (Eastern Time) and 4:00 p.m. (Eastern Time) on the days
on which the NYSE and the Custodian Bank are open. For the purpose of
calculating the Fund's net asset value per share, securities are valued by the
"amortized cost" method of valuation, which does not take into account
unrealized gains or losses. This involves valuing an instrument at its cost and
thereafter assuming a constant amortization to maturity of any discount or
premium, regardless of the impact of fluctuating interest rates on the market
value of the instrument. While this method provides certainty in valuation, it
may result in periods during which value, as determined by amortized cost, is
higher or lower than the price the Fund would receive if it sold the instrument.
 
                            PERFORMANCE INFORMATION
 
    From time to time the Money Market Funds may advertise "yield," and may
advertise "effective yield." Yield figures are based on historical performance
and are not intended to indicate future performance. The "yield" of such Funds
refers to the income generated by an investment in the Funds over a seven-day
period and the income generated over the seven-day period is then "annualized."
That is, the amount of income generated by the investment during that week is
assumed to be generated each week over a 52-week period and is shown as a
percentage of the investment. The "effective yield" is calculated similarly but,
when annualized, the income earned on an investment in a Fund is assumed to be
reinvested. The "effective yield" will be slightly higher than
 
                                       28
<PAGE>
the "yield" because of the compounding effect of this assumed reinvestment. The
Tax-Free Money Market Fund may also quote its "tax-equivalent yield" from time
to time. The tax-equivalent yield shows the level of taxable yield needed to
produce an after-tax equivalent to the Fund's tax-free yield. This is done by
increasing the Fund's yield (calculated as above) by the amount necessary to
reflect the payment of federal income tax at a stated tax rate. For further
information concerning these figures, see "Performance Information" in the
Statement of Additional Information. The Fund may also use comparative
performance information from time to time in marketing Fund shares, including
data from Lipper Analytical Services, Inc. and/or Donoghue's Money Fund Report.
 
    For information on each Fund's seven-day yield call the Transfer Agent at
1-800-282-4404.
 
                          DIVIDENDS AND DISTRIBUTIONS
 
    Shareholders will automatically be credited with all dividends and
distributions in additional shares at net asset value, except that, upon written
notice to the Company or by checking off the appropriate box in the Distribution
Option Section on the New Account Application, a shareholder may elect to
receive dividends and/ or distributions in cash.
 
    For the Money Market Funds, net investment income is computed and dividends
declared as of 1:00 p.m. (Eastern Time) on each day. Such dividends are payable
to Fund shareholders of record as of 12:00 p.m. (Eastern Time) on that day, if
the Company and the Custodian Bank are open for business. This means that
shareholders whose purchase orders become effective as of 12:00 p.m. (Eastern
Time) receive the dividend for that day and shareholders whose purchase orders
become effective as of 4:00 p.m. (Eastern Time) receive the dividend for the
following day. Dividends declared for Saturdays, Sundays and holidays are
payable to shareholders of record as of 4:00 p.m. (Eastern Time) on the last
preceding day the Company and the Custodian Bank were open for business. Net
realized gains, if any, after reduction for any available tax loss carry forward
may be distributed annually.
 
    It is an objective of management to maintain the price per share of each
Money Market Fund as computed for the purpose of sales and redemptions at
exactly $1.00. In the event the Directors determine that a deviation from the
$1.00 per share price may exist which may result in a material dilution or other
unfair results to investors or existing shareholders, they will take corrective
action they regard as necessary and appropriate, including the sale of
instruments from the Fund prior to maturity to realize gains or losses,
shortening average portfolio maturity, withholding dividends, making a special
capital distribution, or redemptions of shares in kind.
 
                                     TAXES
 
TAX STATUS OF THE FUNDS
 
    The following summary of certain federal income tax consequences is based on
current tax laws and regulations, which may be changed by legislative, judicial
or administrative action. See also the tax sections in the Statement of
Additional Information.
 
    No attempt has been made to present a detailed explanation of the federal,
state or local income tax treatment of a Fund or its shareholders. Accordingly,
shareholders are urged to consult their tax advisors regarding specific
questions as to federal, state and local income taxes.
 
                                       29
<PAGE>
    Each Fund is treated as a separate entity for federal income tax purposes,
and thus the provisions of the Internal Revenue Code of 1986, as amended (the
"Code"), generally will be applied to each Fund separately, rather than to the
Company as a whole. Net long-term and short-term capital gains, net income and
operating expenses therefore will be determined separately for each Fund.
 
    Each Fund intends to qualify for the special tax treatment afforded
"regulated investment companies" ("RICs") under Subchapter M of the Code so that
it will be relieved of federal income tax on that part of its net investment
income and net capital gain (the excess of net long-term capital gain over net
short-term capital loss) which is distributed to its shareholders.
 
TAX STATUS OF DISTRIBUTIONS
 
    Each Fund distributes substantially all of its net investment income
(including, for this purpose, net short-term capital gain), to its shareholders.
Dividends paid by the Money Market Fund and Government Obligations Money Market
Fund from their respective net investment income will be taxable to the
shareholders of such Fund as ordinary income, whether received in cash or in
additional shares, if the shareholder is subject to tax. Such dividends paid by
a Fund generally will not qualify for the dividends-received deduction to
corporations.
 
    Distributions of net capital gains (i.e., net long-term capital gains in
excess of net short-term capital losses and any available capital loss
carryforward) are taxable to shareholders subject to tax as long-term capital
gains, regardless of how long the shareholder has held the Fund's shares.
Capital gains distributions are not eligible for the corporate
dividends-received deduction. Each Fund will make annual reports to shareholders
of the federal income tax status of all distributions.
 
    The Tax-Free Money Market Fund intends to qualify to pay "exempt interest
dividends" by satisfying the Code's requirement that at the close of each
quarter of its taxable year at least 50% of the value of its total assets
consists of securities the interest on which is exempt from federal income tax.
So long as this and certain other requirements are satisfied, the Fund's "exempt
interest dividends" will be exempt from regular federal income tax. Investors in
this Fund should note, however, that in certain circumstances such amounts,
while exempt from regular federal income tax, are subject to alternative minimum
tax. In addition, this Fund may not be an appropriate investment for persons who
are "substantial users" of facilities financed by industrial development or
private activity bonds. See the Statement of Additional Information for a
description of the application of the alternative minimum tax and certain other
collateral tax consequences.
 
    Current federal income tax law limits the types and volume of bonds
qualifying for the federal income tax exemption of interest, which may affect
the ability of the Tax-Free Money Market Fund to purchase sufficient amounts of
tax-exempt securities to qualify to pay "exempt interest dividends." Investors
should note that interest on indebtedness incurred or continued by shareholders
to purchase or carry shares of the Tax-Free Money Market Fund will not be
deductible for federal income tax purposes.
 
    The Tax-Free Money Market Fund will determine annually the percentages of
its net investment income which are exempt form the regular federal income tax
and will apply such percentages uniformly to all distributions declared from net
investment income during that year. These percentages may differ significantly
form the actual percentages for any particular day.
 
                                       30
<PAGE>
    Shareholders may also be subject to state and local taxes on distributions
from the Company. Shareholders are advised to consult their own tax advisers
with respect to tax consequences to them of an investment in the Company.
 
    Dividends and other distributions declared in October, November and December
by a Fund payable as of a record date in such month and paid at any time during
January of the following year are treated as having been paid by a Fund and
received by the shareholders on December 31 of the year declared.
 
    THE TAX DISCUSSION SET FORTH ABOVE IS INCLUDED HEREIN FOR GENERAL
INFORMATION ONLY. PROSPECTIVE INVESTORS AND SHAREHOLDERS SHOULD CONSULT THEIR
OWN TAX ADVISERS WITH RESPECT TO THE TAX CONSEQUENCES TO THEM OF AN INVESTMENT
IN A FUND.
 
                              GENERAL INFORMATION
 
DESCRIPTION OF COMMON STOCK
 
    The Company was organized as a Maryland corporation on August 14, 1992. The
Amended Articles of Incorporation currently permit the Company to issue 21.75
billion shares of common stock, par value $.001 per share. Pursuant to the
Company's By-Laws, the Board of Directors may increase the number of shares the
Company is authorized to issue without the approval of the shareholders of the
Company. The Board of Directors has the power to designate one or more classes
of shares of common stock and to classify and reclassify any unissued shares
with respect to such classes.
 
    The shares of the Funds, when issued, will be fully paid, nonassessable,
fully transferable and redeemable at the option of the holder. The shares have
no preference as to conversion, exchange, dividends, retirement or other
features and have no preemptive rights. The shares of the Funds have
non-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. Under Maryland law, the Company is not required to hold
an annual meeting of its shareholders unless required to do so under the 1940
Act. A Director may be removed by shareholders at a special meeting called upon
written request of shareholders owning at least 10% of the outstanding shares of
the Company. Any person or organization owning 25% or more of the outstanding
shares of a Fund may be presumed to "control" (as that term is defined in the
1940 Act) such Fund. As of December 11, 1996, PFPC, Inc., 400 Bellevue Parkway,
Wilmington, DE 19809, was presumed to "control" the Money Market Fund and
Government Obligations Money Market Fund based solely on its ownership of 25% or
more of the outstanding voting shares of such Funds.
 
REPORTS TO SHAREHOLDERS
 
    The Company and/or its agents will send to shareholders of the Company
annual and semi-annual reports; the financial statements appearing in annual
reports are audited by independent accountants. Shareholder inquiries for Prime
Resource Accounts should be directed to the Sub-Transfer Agent, PFPC, Inc., P.O.
Box 8950, Delaware 19899. Shareholder inquiries for all other accounts should be
directed to the Transfer Agent, Chase Global Funds Services Company, P.O. Box
2798, Boston, Massachusetts 02208-2798.
 
                                       31
<PAGE>
CUSTODIAN
 
    PNC Bank, N.A. acts as custodian for each of the Money Market Funds. For
more information on the Company's custodians, see "General Information --
Custody Arrangements" in the Statement of Additional Information.
 
DIVIDEND DISBURSING, TRANSFER AGENT AND SUB-TRANSFER AGENT
 
    Chase Global Funds Services Company, 73 Tremont Street, Boston,
Massachusetts 02108-3913, acts as dividend disbursing and transfer agent for the
Company. PFPC, Inc., an indirect wholly-owned subsidiary of PNC Financial Corp.,
a multi-bank holding company, serves as sub-transfer agent for Morgan Stanley
Prime Resource Account shareholders. PFPC's address is 400 Bellevue Parkway,
Wilmington, Delaware 19809. ACCESS, a wholly-owned subsidiary of VKAC
Distributors, serves as sub-transfer agent for all other shareholders. ACCESS's
address is P.O. Box 418256, Kansas City, Missouri 64141.
 
INDEPENDENT ACCOUNTANTS
 
    Price Waterhouse LLP, 1177 Avenue of the Americas, New York, NY 10036,
serves as independent accountants for the Company and audits its annual
financial statements.
 
                                       32
<PAGE>
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  NO DEALER, SALES REPRESENTATIVE OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO
GIVE ANY INFORMATION OR TO MAKE ANY REPRESENTATIONS, OTHER THAN THOSE CONTAINED
IN THIS PROSPECTUS, IN CONNECTION WITH THE OFFER MADE BY THIS PROSPECTUS AND, IF
GIVEN OR MADE, SUCH OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON
AS HAVING BEEN AUTHORIZED BY THE COMPANY OR THE DISTRIBUTOR. THIS PROSPECTUS
DOES NOT CONSTITUTE AN OFFER BY THE COMPANY OR THE DISTRIBUTOR TO SELL OR A
SOLICITATION OF AN OFFER TO BUY ANY OF THE SECURITIES OFFERED HEREBY IN ANY
JURISDICTION TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER OR
SOLICITATION IN SUCH JURISDICTION.
 
                           --------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<S>                                                                   <C>
                                                                      PAGE
                                                                      -----
Fund Expenses.........................................................    2
Financial Highlights..................................................    4
Prospectus Summary....................................................    7
Investment Objectives and Policies....................................   10
Additional Investment Information.....................................   13
Investment Limitations................................................   17
Management of the Company.............................................   17
Purchase of Shares....................................................   20
Redemption of Shares..................................................   23
Shareholder Services..................................................   27
Performance Information...............................................   28
Dividends and Distributions...........................................   29
Taxes.................................................................   29
General Information...................................................   31
</TABLE>
 
                                 MORGAN STANLEY
                               MONEY MARKET FUND
 
                           TAX-FREE MONEY MARKET FUND
 
                             GOVERNMENT OBLIGATIONS
                               MONEY MARKET FUND
 
                               PORTFOLIOS OF THE
                                 MORGAN STANLEY
                                   FUND, INC.
 
                                ---------------
                                   PROSPECTUS
                                ---------------
 
                               INVESTMENT ADVISER
 
                                 MORGAN STANLEY
                             ASSET MANAGEMENT INC.
 
                                  DISTRIBUTOR
 
                              VAN KAMPEN AMERICAN
 
                           CAPITAL DISTRIBUTORS, INC.
 
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