MUNDER FUNDS INC
497, 2000-07-03
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<PAGE>

                                                            CLASS A AND B SHARES










[MUNDER LOGO]
                                                                      Prospectus


                                                                   JUNE 29, 2000

                                                            MUNDER FUND OF FUNDS
                                    (formerly Munder All-Season Aggressive Fund)










                                    As with all mutual funds, the Securities and
                                         Exchange Commission has not approved or
                                disapproved these securities nor passed upon the
                                accuracy or adequacy of this prospectus. It is a
                                            criminal offense to state otherwise.
<PAGE>

Table Of Contents

<TABLE>
 <C> <S>
 2   Risk/Return Summary
 3   Who May Want To Invest
 5   Fees And Expenses
 6   More About The Fund
 6   Glossary
 7   Asset Allocation Chart
 8   Description Of The Underlying Funds
 10  Principal Investment Strategies And Risks
 11  Other Investment Strategies And Risks Of The Fund And Underlying Funds
 14  Disclaimers
 15  Your Investment
 15  How To Reach The Fund
 15  Purchasing Shares
 16  Exchanging Shares
 16  Redeeming Shares
 17  Additional Policies For Purchases, Exchanges And Redemptions
 18  Shareholder Privileges
 19  Distribution Arrangements
 19  Share Class Selection
 19  Applicable Sales Charge
 21  CDSC
 22  12b-1 Fees
 22  Other Information
 23  Pricing of Fund Shares
 23  Distributions
 24  Federal Tax Considerations
 24  Taxes On Distributions
 24  Taxes On Sales Or Exchanges
 24  Other Considerations
 25  Management
 25  Investment Advisor
 25  Portfolio Managers
 26  Financial Highlights
</TABLE>

Back Cover For Additional Information
<PAGE>

Risk/Return Summary
--------------------------------------------------------------------------------

This Risk/Return Summary briefly describes the goals and principal investment
strategies of the Munder Fund of Funds (formerly Munder All-Season Aggressive
Fund) and the principal risks of investing in the Fund. For further information
on these and the Fund's other investment strategies and risks, please read the
section entitled "More About the Fund." Certain terms used in this prospectus
are defined in the Glossary.

 Fund of Funds

 The Fund is a fund of funds, which
 means that it invests almost all
 of its assets in other mutual
 funds, rather than in individual
 securities. The Fund invests its
 assets in a variety of other
 Munder Funds, referred to as
 "underlying funds."

 The risks of investing in the Fund
 are dependent on which underlying
 funds the Funds invest in, and to
 what extent. In addition, the
 investment performance of the Fund
 is directly related to the
 performance of the underlying
 funds in which it invests.


 Investment Approach of the Underlying Funds

 . The underlying equity funds
   represented in the Fund vary
   from growth to value styles of
   investing, from larger to
   smaller company stocks and from
   domestic to international
   equities.


Goal

The Fund's goal is to provide long-term capital appreciation.

Principal Investment Strategies

As a fund of funds, the Fund pursues its goal by investing a majority of its
assets in underlying funds that invest primarily in equity securities.

The Fund may also invest a portion of its assets in underlying funds that
invest primarily in money market instruments.

The advisor may periodically adjust the Fund's asset allocation among
underlying funds in response to changing economic and market conditions. The
typical allocation is expected to be: 95% Equity Funds and 5% Money Market
Funds.

The Fund's indirect, stock holdings will be a combination of large-cap, mid-cap
and small-cap U.S. stocks as well as foreign stocks.

In the "More About the Fund" section, you will find a description of the
underlying funds and a chart showing the percentage of its assets that the Fund
may invest in each underlying fund.

Principal Risks

All investments have some degree of risk which will affect the value of a
portfolio's investment, its investment performance and the price of its shares.
As a result, you may lose money if you invest in the Fund.

An investment in the Fund is not a bank deposit and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other
governmental agency.

                                       2
<PAGE>

Among the principal risks of investing in the Fund are:

 . Stock Market Risk. The value of the securities in which the Fund invests may
  decline in response to developments affecting particular companies and/or
  general economic conditions. Price changes may be temporary or last for
  extended periods. For example, stock prices have historically risen and
  fallen in periodic cycles. In addition, the value of the Fund's investments
  may decline if the particular companies the Fund invests in do not perform
  well.

 . Foreign Securities Risk. Investments by an underlying fund in foreign
  securities may experience greater and more rapid changes in value than U.S.
  securities. Foreign securities are generally more volatile and less liquid
  than U.S. securities, in part because of greater political and economic risks
  and because there is less public information available about foreign
  companies. Issuers of foreign securities are generally not subject to the
  same degree of regulation as are U.S. issuers. The reporting, accounting and
  auditing standards of foreign countries may differ, in some cases
  significantly, from U.S. standards.

 . Currency Risk. A decline in the value of foreign currencies relative to the
  U.S. dollar will reduce the value of an underlying fund's portfolio
  securities denominated in those currencies.

 . Smaller Company Stock Risk. The stocks of small or medium-size companies may
  have more risks than those of larger companies. Small or medium-size
  companies often have narrower markets and more limited managerial and
  financial resources than larger, more established companies. As a result,
  they may be more sensitive to changing economic conditions, which could
  increase the volatility of an underlying fund's portfolio. In addition, small
  company stocks typically are traded in lower volume making them more
  difficult to sell.

 . Sector Risk. Certain underlying funds may concentrate its investments in a
  particular industry sector. Adverse economic, business or political
  developments affecting that industry sector could have a major effect on the
  value of the underlying fund's investments.

Who May Want to Invest

The Fund may be appropriate for investors who:

 . Seek long-term growth of capital.

 . Can tolerate short-term fluctuations in the financial markets.

                                       3
<PAGE>

Performance

The bar chart and table below give some indication of the risk of an investment
in the Fund. The bar chart shows the Fund's performance for each calendar year
since inception. The table shows how the Fund's average annual total returns
for different calendar periods over the life of the Fund compare to those of a
broad based securities market index.

When you consider this information, please remember the Fund's performance in
past years is not necessarily an indication of how the Fund will perform in the
future.

The annual returns in the bar chart       Average Annual Total Returns
are for the Fund's Class A Shares         (for the periods ended December 31,
and do not reflect sales loads. If        1999)
sales loads were reflected, returns
would be less than those shown.
<TABLE>
                                          ----------------------------------------
<CAPTION>
                                                                         Since
                                                     1 Year            Inception*
                                          ----------------------------------------
                         <S>                         <C>               <C>
                         Class A                     15.88%               5.57%
                         Class B                     17.37%              13.46%
                         Wilshire 5000 Index**       23.56%              21.73%***
                          Class B                                        11.37%***
</TABLE>

                                           --------
                                          *  The inception dates for the Class
                                             A shares and Class B shares are
                                             10/7/97 and 1/14/98,
                                             respectively.
                                          ** The Wilshire 5000 Equity Index
                                             measures the performance of all
                                             U.S. headquartered equity
                                             securities with readily available
                                             price data. Over 7,000
                                             capitalization weighted security
                                             returns are used to adjust the
                                             index.
                                          ***Index return from 9/31/97 for
                                             Class A shares and 1/31/98 for
                                             Class B shares.

                                          The average annual total returns
                                          reflect imposition of the maximum
                                          front-end or contingent deferred
                                          sales charge and conversion of Class
                                          B shares to Class A shares after the
                                          applicable period.
Total Return
(per calendar year)

[BAR CHART]

1998                       3.56%
1999                      22.59%

Year-to-date through March 31, 2000:
11.86%

<TABLE>
<S>                                   <C>                                                  <C>
Best Quarter:                         Q 4 1999                                              20.83%
Worst Quarter:                        Q 3 1998                                             (16.27)%
</TABLE>

                                       4
<PAGE>

Fees And Expenses

The tables below describe the fees and expenses that you may pay if you buy and
hold shares the Funds. Please note that the following information does not
include fees that institutions may charge for services they provide to you.

<TABLE>
<CAPTION>
                                                              Class A   Class B
                                                              Shares    Shares
Shareholder Fees (fees paid directly from your investment)    -------   -------
<S>                                                           <C>       <C>
Maximum Sales Charge (Load) Imposed on Purchases (as a % of
 offering price)............................................   5.5%(a)    None
Maximum Deferred Sales Charge (Load)(as a % of the lesser of
 original purchase price or redemption proceeds)............   None(b)   5%(c)
Sales Charge (Load) Imposed on Reinvested Dividends.........   None       None
Redemption Fees.............................................   None       None
Exchange Fees...............................................   None       None
</TABLE>

Annual Fund Operating Expenses (expenses that are paid from Fund assets) as a %
of net assets

<TABLE>
<CAPTION>
                                                                 Class A Class B
                                                                 Shares  Shares
                                                                 ------- -------
<S>                                                              <C>     <C>
Management Fees.................................................  None    None
Distribution and/or Service (12b-1) Fees........................  0.30%   1.00%
Other Expenses..................................................  0.25%   0.25%
                                                                  ----    ----
Total Annual Fund Operating Expenses(1).........................  0.55%   1.25%
                                                                  ====    ====
</TABLE>
--------
(a) The sales charge declines as the amount invested increases.
(b) A contingent deferred sales charge (CDSC) is a one-time fee charged at the
    time of redemption. A 1% CDSC applies to redemptions of Class A shares
    within one year of investment that were purchased with no initial sales
    charge as part of an investment of $1,000,000 or more.
(c) The CDSC payable upon redemption of Class B shares declines over time.

In addition to the expenses shown above, shareholders of the Fund will
indirectly bear their pro rata shares of the annual operating expenses of the
underlying funds. As a result, the investment returns of the Fund will be net
of the expenses of the Underlying Fund. Since the Fund invests in other Munder
Funds, as a shareholder you will pay a higher expense ratio than if you had
purchased shares of an underlying fund directly. The underlying funds' total
annual fund operating expense ratios for the fiscal year ended June 30, 1999
ranged from .32% to 2.45%.

Example

The example is intended to help you compare the cost of investing in the Fund
to the cost of investing in other mutual funds. The example assumes that you
invest $10,000 in the Fund for the time periods indicated. The example also
assumes that your investment has a 5% return each year, that the Fund's
operating expenses remain the same and that all dividends and distributions are
reinvested. Although your actual costs may be higher or lower, based on these
assumptions your costs would be:

<TABLE>
<CAPTION>
                                                    Class A Class B    Class B
                                                    Shares  Shares*    Shares**
                                                    ------- -------    --------
<S>                                                 <C>     <C>        <C>
1 Year............................................. $  644  $  647      $  128
3 Years............................................ $  717  $  733      $  398
5 Years............................................ $  841  $  929      $  688
10 Years........................................... $1,204  $1,143***   $1,143***
</TABLE>
--------
   * Assumes you sold your shares at the end of the time period.
  ** Assumes you stayed in the Fund.
 *** Reflects conversion of Class B shares to Class A shares (which pay lower
     ongoing expenses) approximately six years after the date of original
     purchase.

                                       5
<PAGE>

More About The Fund
--------------------------------------------------------------------------------

This section describes the underlying funds in which the Fund may invest. It
also discusses the risks of investing in the Fund, which are dependent upon
which underlying funds the Fund invests in, and to what extent. Further,
included in this section is a chart that shows the maximum percentage of its
assets that the Fund may invest in each underlying fund. Please note that the
underlying funds may also invest in securities and are subject to restrictions
and additional risks which are described in the Statement of Additional
Information.

The Glossary below explains certain terms used throughout this prospectus.

Glossary

Types Of Securities

Equity securities include common stocks, preferred stocks, securities
convertible into common stocks, and rights and warrants to subscribe for the
purchase of common stocks. Equity securities may be listed on a stock exchange
or NASDAQ National Market System or unlisted. Warrants are rights to purchase
securities at a specified time at a specified price.

Convertible Securities.  A convertible security is a bond or preferred stock
that may be converted (exchanged) into the common stock of the issuing company
within a specified time period for a specified number of shares. Convertible
securities offer the underlying funds a way to participate in the capital
appreciation of the common stock into which the securities are convertible,
while earning higher current income than is available from the common stock.

Money market instruments are high-quality, short-term instruments including
commercial paper, bankers' acceptances and negotiable certificates of deposit
of banks or savings and loan associations, short-term corporate obligations and
short-term U.S. Government securities.

Rating Agencies and Indices

S&P is Standard & Poor's Rating Services.

S&P 500 is S&P's 500 Composite Stock Price Index, a widely recognized unmanaged
index of U.S. stock market activity.

Other

1940 Act is the Investment Company Act of 1940, as amended.

Internal Revenue Code is the Internal Revenue Code of 1986, as amended.

NAV is the net asset value per share of the Fund. NAV is the value of a single
share of the Fund. The Fund calculates NAV separately for each class. NAV is
calculated by (1) taking the current value of the Fund's total assets allocated
to a particular class of shares, (2) subtracting the liabilities and expenses
charged to that class (3) dividing that amount by the total number of shares of
that class outstanding.

                                       6
<PAGE>

Asset Allocation Chart

The following chart shows the Fund's maximum investment (expressed as a
percentage of each Fund's assets) that the Fund may make in the underlying
funds.

<TABLE>
      <S>                                                                    <C>
      Equity Funds
      Equity Income Fund....................................................  20%
      Focus Growth Fund.....................................................  30%
      Future Technology Fund................................................  15%
      Growth Opportunities Fund.............................................  20%
      Institutional S&P 500 Index Equity Fund...............................  40%
      International Equity Fund.............................................  15%
      International Net Net Fund............................................  10%
      Micro-Cap Equity Fund.................................................  10%
      Multi-Season Growth Fund..............................................  30%
      NetNet Fund...........................................................  10%
      Real Estate Equity Investment Fund....................................  25%
      Small-Cap Value Fund..................................................  35%
      Small Company Growth Fund.............................................  35%
      Framlington Emerging Markets Fund.....................................  15%
      Framlington Global Financial Services Fund............................  15%
      Framlington Healthcare Fund...........................................  10%
      Framlington International Growth Fund.................................  15%

      Other Munder Equity Funds.............................................  20%

      Money Market Funds
      Cash Investment Fund..................................................  15%
      Money Market Fund.....................................................  10%
      U.S. Treasury Money Market Fund.......................................  10%
</TABLE>

                                       7
<PAGE>

Description of Underlying Funds

Equity Funds


Equity Income Fund
The Fund's goal is to provide capital appreciation and current income. The Fund
pursues its goal by investing primarily in dividend-paying equity securities
and fixed income securities which are convertible into or exchangeable for
common stock. The advisor generally selects large, well-known companies that it
believes have favorable prospects for dividend growth and capital appreciation.
The Fund will seek to produce a current yield greater than the S&P 500.

Focus Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities which the
advisor believes are undervalued compared to stocks of other companies in the
same industry. The Fund generally invests in companies with market
capitalizations of at least $1 billion. The Fund diversifies its assets by
industry in approximately the same weightings as those of the Russell 1000
Growth Index.

Future Technology Fund
The Fund's goal is to provide capital appreciation. The Fund pursues its goal
by investing at least 65% of its assets in common stocks of technology-related
companies. Technology-related companies are companies that develop,
manufacture, or distribute technology, communications and Internet-related
products and services. The Fund may also invest in the stocks of companies that
should benefit commercially from technological advances. The Fund invests in
both established companies and in new or unseasoned companies, including
companies making initial public offerings.

Growth Opportunities Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in the equity securities of
companies with market capitalizations between $500 million and $10 billion. Its
style, which focuses on both growth prospects and valuation, is known as GARP
(Growth at a Reasonable Price) and seeks to produce attractive returns during
various market environments.

Institutional S&P 500 Index Equity Fund
The Fund's goal is to provide performance and income that is comparable to the
S&P 500. The S&P 500 is an index of 500 stocks that emphasizes large
capitalization companies. The Fund pursues its goal by normally holding a
substantial amount of its assets in securities of at least 400 of the stocks in
the S&P 500. The Fund is managed through the use of a "quantitative" or
"indexing" investment approach and tries to mirror the composition and
performance of the S&P 500 through statistical procedures. The Fund will try to
achieve a correlation between the performance of its portfolio and that of the
S&P 500 of at least .95. A correlation of 1.0 would mean that the changes in
the Fund's price mirror exactly the changes in the S&P 500.

International Equity Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing primarily in foreign securities, including American
Depositary Receipts. The Fund mostly invests in mature markets, but may also
invest in emerging markets. The Fund emphasizes companies with a market
capitalization of at least $250 million.

International Netnet Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by using a growth strategy to invest primarily in foreign companies
engaged in the Internet or Intranet related business. Under normal market
conditions, the Fund will invest at least 65% of its total assets in equity
securities of foreign companies that are engaged in the research, design,
development, manufacturing or engaged to a significant extent in the business
of distributing products, processes or services for use with the Internet or
Intranet related businesses.

Micro-Cap Equity Fund
The Fund's goal is to provide capital appreciation. The Fund pursues its goal
by investing at least 65% of its assets in equity securities of micro-
capitalization companies having market capitalizations within the range of the
companies in the Wilshire Micro-Cap Index. There is no limit on the length of
operating history for the companies in which the Fund may invest. The Fund may
invest without limit in initial public offerings of small capitalization
companies. In addition, the Fund may invest up to 35% of its assets in equity
securities of medium and larger capitalization companies, including initial
public offerings of such companies.

                                       8
<PAGE>

Multi-Season Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities. The Fund
generally invests in equity securities of companies with market capitalizations
over $1 billion. Its style, which focuses on both growth prospects and
valuation, is known as GARP (Growth at a Reasonable Price) and seeks to produce
attractive returns during various market environments.

NetNet Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing primarily in companies engaged in the Intranet and
Internet related business. Under normal market conditions, the Fund will invest
at least 65% of its total assets in equity securities of companies that are
engaged in research, design, development, manufacturing or engaged to a
significant extent in the business of distributing products, processes or
services for use with Internet or Intranet related businesses.

Real Estate Equity Investment Fund
The Fund's goal is to provide both capital appreciation and current income. The
Fund pursues its goal by investing at least 65% of its total assets in equity
securities of U.S. companies which are principally engaged in the real estate
industry.

Small-Cap Value Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of small
capitalization companies having market capitalizations within the range of the
companies in the Russell 2000 Index. The advisor will concentrate on companies
that it believes are undervalued.

Small Company Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing, under normal market conditions, at least 65% of its
assets in equity securities of small capitalization companies with market
capitalizations below $1.5 billion.

Framlington Emerging Markets Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of
companies in emerging market countries, as defined by the World Bank, the
International Finance Corporation, the United Nations or the European Bank for
Reconstruction and Development. It may also invest in foreign securities of
companies located in countries with mature markets.

Framlington Global Financial Services Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of U.S.
and foreign companies which are principally engaged in the financial services
industry and companies providing services primarily within the financial
services industry. The Fund focuses specifically on companies which are likely
to benefit from growth or consolidation in the financial services industry. The
Fund may invest in securities of companies located in countries with mature
markets and in those with emerging markets.

Framlington Healthcare Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing in equity securities of companies providing healthcare
and medical services and products worldwide. Currently, most of these companies
are located in the United States. The Fund's investments may include foreign
securities of companies located in countries with mature markets and in those
with emerging markets.

Framlington International Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of
issuers located in at least three foreign countries. The Fund may invest in
companies located in countries with mature markets and in those with emerging
markets.

Money Market Funds


Cash Investment Fund
The Fund's primary goal is to provide as high a level of current interest
income as is consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing in a broad range of U.S. dollar-
denominated money market instruments. The Fund invests solely in U.S. dollar-
denominated debt securities with remaining maturities of 13 months or less and
maintains an average dollar-weighted portfolio maturity of 90 days or less.

                                       9
<PAGE>

Institutional Money Market Fund
The Fund's primary goal is to provide as high a level of current interest
income as is consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing in a broad range of U.S. dollar-
denominated money market instruments. The Fund invests solely in U.S. dollar-
denominated debt securities with remaining maturities of 13 months or less and
maintains an average dollar-weighted portfolio maturity of 90 days or less.

U.S. Treasury Money Market Fund
The Fund's goal is to provide as high a level of current interest income as is
consistent with maintaining liquidity and stability of principal. The Fund
pursues its goal by investing its assets solely in short-term bills and notes,
issued by the U.S. Treasury (including "stripped" securities) and in repurchase
agreements relating to such obligations. The Fund invests solely in U.S.
dollar-denominated debt securities with remaining maturities of 13 months or
less and maintains an average dollar-weighted portfolio maturity of 90 days or
less.

Principal Investment Strategies and Risks

Foreign Investment Risk. Certain underlying funds may invest in foreign
securities. Foreign securities include investments in non-U.S. dollar-
denominated securities traded outside of the United States and dollar-
denominated securities of foreign issuers traded in the United States. Foreign
securities also include American Depository Receipts ("ADRs"), European
Depository Receipts ("EDRs") and Global Depository Receipts ("GDRs"). ADRs are
U.S. dollar-denominated receipts representing shares of foreign-based
corporations. ADRs are issued by U.S. banks or trust companies, and entitle the
holder to all dividends and capital gains that are paid out on the underlying
foreign shares. EDRs and GDRs are receipts issued by non-U.S. financial
institutions that often trade on foreign exchanges. They represent ownership in
an underlying foreign or U.S. security and are generally denominated in a
foreign currency.

  Special Risks. Foreign securities involve special risks and costs.
  Investment in the securities of foreign governments involves the risk that
  foreign governments may default on their obligations or may otherwise not
  respect the integrity of their debt.

  Investments in foreign securities may involve higher costs than investment
  in U.S. securities, including higher transaction and custody costs as well
  as the imposition of taxes by foreign governments. Foreign investments may
  also involve risks associated with the level of currency exchange rates,
  less complete financial information about the issuers, less market
  liquidity, more market volatility and political instability. Future
  political and economic developments, the possible imposition of withholding
  taxes on dividend income, the possible seizure or nationalization of
  foreign holdings, the possible establishment of exchange controls or
  freezes on the convertibility of currency, or the adoption of other
  governmental restrictions might adversely affect an investment in foreign
  securities. Additionally, foreign issuers may be subject to less stringent
  regulation, and to different accounting, auditing and recordkeeping
  requirements.

  Currency exchange rates may fluctuate significantly over short periods of
  time causing an underlying fund's net asset value to fluctuate as well. A
  decline in the value of a foreign currency relative to the U.S. dollar will
  reduce the value of a foreign currency-denominated security. To the extent
  that an underlying fund is invested in foreign securities while also
  maintaining currency positions, it may be exposed to greater combined risk.
  The underlying funds' respective net currency positions may expose them to
  risks independent of their securities positions.

  Additional risks are involved when investing in countries with emerging
  economies or securities markets. In general, the securities markets of
  these countries are less liquid, are subject to greater price volatility,
  have smaller market capitalizations and may have problems with securities
  registration and custody. In addition, because the securities settlement
  procedures are less developed in these countries, an underlying fund may be
  required to deliver securities before receiving payment and may also be
  unable to complete transactions during market disruptions. As a result of
  these and other risks, investments in these countries generally present a
  greater risk of loss to the Fund.

                                       10
<PAGE>

  A further risk of investing in foreign securities is the risk that an
  underlying fund may be adversely affected by the conversion of certain
  European currencies into the Euro. This conversion, which is underway, is
  scheduled to be completed in the year 2002. However, problems with the
  conversion process and delays could increase volatility in world capital
  markets and affect European capital markets in particular.

Investments in Financial Services Companies by Framlington Global Financial
Services Fund. Financial services companies are subject to extensive
governmental regulation which may limit both the financial commitments they can
make, and the interest rates and fees they can charge. Insurance companies may
be subject to severe price competition.

Investments in the Healthcare Industry by Framlington Healthcare Fund. The
Framlington Healthcare Fund will invest most of its assets in the healthcare
industry, which is particularly affected by rapidly changing technology and
extensive government regulation, including cost containment measures.

Investments in the Real Estate Industry by Real Estate Equity Investment
Fund. The Real Estate Equity Investment Fund will invest primarily in the real
estate industry and may invest more than 25% of its assets in any one sector of
the real estate industry. As a result, the Real Estate Equity Investment Fund
will be particularly vulnerable to declines in real estate prices and new
construction rates.

Investments by the NetNet Fund. The NetNet Fund will invest primarily in
companies engaged in Internet and Intranet related activities. The value of
such companies is particularly vulnerable to rapidly changing technology,
extensive government regulation and relatively high risks of obsolescence
caused by scientific and technological advances. The value of the Fund's shares
may fluctuate more than shares of a fund investing in a broader range of
industries.

Investments in the Technology Industry by Future Technology Fund. The Future
Technology Fund will invest most of its assets in the technology industry,
which is particularly affected by rapidly changing technology product cycles,
government regulation and competition. Technology stocks, especially those of
smaller, less-seasoned companies, tend to be more volatile than the overall
market.

Short-Term Trading. The underlying funds may engage in short-term trading,
including initial public offerings.

  Special Risks. A high rate of portfolio turnover (100% or more) could
  produce higher trading costs and taxable distributions, which could detract
  from a Fund's performance.

Defensive Investing. The Fund and each underlying fund (except the
Institutional S&P 500 Index Equity Fund) may invest all or any portion of its
assets in short-term obligations as a temporary defensive measure in response
to adverse market or economic conditions.

  Special Risks. If the Fund or one or more underlying funds adopts a
  defensive strategy, the Fund may not achieve its investment objective.

Other Investment Strategies and Risks of the Fund and Underlying Funds

Borrowing and Reverse Repurchase Agreements. The Fund and underlying funds can
borrow money from banks and enter into reverse repurchase agreements with banks
and other financial institutions. Reverse repurchase agreements involve the
sale of securities held by the Fund (or underlying fund) subject to the Fund's
(or underlying fund) agreement to repurchase them at a mutually agreed upon
date and price (including interest).

  Investment Strategy. The Fund (or underlying fund) may borrow money in an
  amount up to 5% of its assets for temporary emergency purposes and in an
  amount up to 33 1/3% of its assets to meet redemptions. This is a
  fundamental policy which can be changed only by shareholders.

  Special Risks. Borrowings and reverse repurchase agreements by the Fund (or
  underlying fund) may involve leveraging. If the securities held by the Fund
  (or underlying fund) decline in value while these transactions are
  outstanding, the Fund's net asset value will decline in value by
  proportionately more than the decline in value of the securities. In
  addition, reverse repurchase agreements involve

                                       11
<PAGE>

  the risks that the interest income earned by the Fund (or underlying fund)
  (from the investment of the proceeds) will be less than the interest
  expense of the transaction, that the market value of the securities sold by
  the Fund (or underlying fund) will decline below the price the Fund (or
  underlying fund) is obligated to pay to repurchase the securities, and that
  the securities may not be returned to the Fund (or underlying fund).

Derivative Risk. Some underlying funds may purchase certain "derivative"
instruments. Derivatives are financial contracts whose value is based on an
underlying security, a currency exchange rate, an interest rate or a market
index. Many types of instruments representing a wide range of potential risks
and rewards are derivatives, including futures contracts options on futures
contracts, options, forward currency contracts and structured debt obligations
(including collateralized mortgage obligations and other types of asset-backed
securities, "stripped" securities and various floating rate instruments).

  Investment Strategy. Derivatives can be used for hedging (attempting to
  reduce risk by offsetting one investment position with another) or
  speculation (taking a position in the hope of increasing return). The
  underlying funds may, but are not required to, use derivatives for hedging
  purposes or for the purpose of remaining fully invested or maintaining
  liquidity. The underlying funds will not use derivatives for speculative
  purposes.

  Special Risks. The use of derivative instruments exposes a Fund to
  additional risks and transaction costs. Risks of derivative instruments
  include: (1) the risk that interest rates, securities prices and currency
  markets will not move in the direction that a portfolio manager
  anticipates; (2) imperfect correlation between the price of derivative
  instruments and movements in the prices of the securities, interest rates
  or currencies being hedged; (3) the fact that skills needed to use these
  strategies are different than those needed to select portfolio securities;
  (4) the possible absence of a liquid secondary market for any particular
  instrument and possible exchange imposed price fluctuation limits, either
  of which may make it difficult or impossible to close out a position when
  desired; (5) the risk that adverse price movements in an instrument can
  result in a loss substantially greater than the underlying fund's initial
  investment in that instrument (in some cases, the potential loss is
  unlimited); (6) particularly in the case of privately-negotiated
  instruments, the risk that the counterparty will not perform its
  obligations, which could leave the underlying fund worse off than if it had
  not entered into the position; and (7) the inability to close our certain
  hedged positions to avoid adverse tax consequences.

Forward Currency Exchange Contracts. A forward currency exchange contract is an
obligation to exchange one currency for another on a future date at a specified
exchange rate.

  Investment Strategy. Forward currency exchange contracts may be used for
  hedging purposes and to help reduce the risks and volatility caused by
  changes in foreign currency exchange rates. Foreign currency exchange
  contracts will be used at the discretion of the advisor or sub-advisor, and
  no underlying fund is required to hedge its foreign currency positions.

  Special Risks. Forward currency contracts are privately negotiated
  transactions, and can have substantial price volatility. When used for
  hedging purposes, they tend to limit any potential gain that may be
  realized if the value of an underlying fund's foreign holdings increases
  because of currency fluctuations.

Futures Contracts and Related Options. A futures contract is a type of
derivative instrument that obligates the holder to buy or sell an asset in the
future at an agreed upon price. When an underlying fund purchases an option on
a futures contract, it has the right to assume a position as a purchaser or
seller of a futures contract at a specified exercise price during the option
period. When an underlying fund sells an option on a futures contract, it
becomes obligated to purchase or sell a futures contract if the option is
exercised.

  Investment Strategy. The underlying funds may invest in futures contracts
  and options on futures contracts on domestic or foreign

                                       12
<PAGE>

  exchanges or boards of trade. These instruments may be used for hedging
  purposes, to maintain liquidity to meet potential shareholder redemptions,
  to invest cash balances or dividends, or to minimize trading costs.

  An underlying fund will not purchase or sell a futures contract unless,
  after the transaction, the sum of the aggregate amount of margin deposits
  on its existing futures positions and the amount of premiums paid for
  related options used for non-hedging purposes is 5% or less of the
  underlying fund's total assets.

  Special Risks. Futures contracts and related options present the following
  risks: imperfect correlation between the change in market value of an
  underlying fund's securities and the price of futures contracts and
  options; the possible inability to close a futures contract when desired;
  losses due to unanticipated market movements, which are potentially
  unlimited; and the possible inability of the advisor or sub-advisor to
  correctly predict the direction of securities prices, interest rates,
  currency exchange rates and other economic factors.

Illiquid Securities. Illiquid securities include private placements or other
securities that are subject to legal or contractual restrictions on resale or
for which there is no readily available market.

  Investment Strategy. Each underlying fund may invest up to 15% of its net
  assets in securities that are illiquid.

  Special Risks. To the extent that an underlying fund invests in illiquid
  securities, the underlying fund risks not being able to sell the securities
  at the time and the price that it would like. The underlying fund may have
  to lower the price, sell substitute securities or forego an investment
  opportunity, each of which may cause a loss to the underlying fund.

Options. An option is a type of derivative instrument that gives the holder the
right (but not the obligation) to buy (a "call") or sell (a "put") an asset in
the future at an agreed upon price prior to the expiration date of the option.

  Investment Strategy. The underlying funds may write (sell) covered call
  options, buy put options, buy call options and write secured put options
  for hedging purposes. Options may relate to particular securities, foreign
  or domestic securities indices, financial instruments or foreign
  currencies.

  Special Risks. The value of options can be highly volatile, and their use
  can result in loss if the advisor or sub-advisor is incorrect in its
  expectation of price fluctuations. The successful use of options for
  hedging purposes also depends in part on the ability of the advisor or sub-
  advisor to predict future price fluctuations and the degree of correlation
  between the options and securities markets.

Securities Lending. In order to generate additional income, each underlying
fund may lend securities on a short-term basis to qualified institutions. By
reinvesting any cash collateral it receives in these transactions, the
underlying fund could realize additional income gains or losses.

  Investment Strategy. Securities lending may represent no more than 25% of
  the value of an underlying fund's total assets (including the loan
  collateral).

  Special Risks. The main risk when lending securities is that if the
  borrower fails to return the securities or the invested collateral has
  declined in value, the underlying fund could lose money.

Temporary Investments. Short-term obligations refer to U.S. Government
securities, high-quality money market instruments and repurchase agreements
with maturities of 13 months or less. Generally, these obligations are
purchased to provide stability and liquidity to a Fund or underlying fund.

  Investment Strategy. The Fund or underlying fund may invest a portion of
  its assets in short-term obligations pending investment or to meet
  anticipated redemption requests.

  Special Risks. The Fund or underlying fund may not achieve its investment
  objective when its asset are invested in short-term obligations.

Variable and Floating Rate Instruments. Variable and floating rate instruments
have interest rates that are periodically adjusted either at set intervals or
that

                                       13
<PAGE>

float at a margin above a generally recognized index rate. These instruments
include variable amount master demand notes.

Special Risks. Variable and floating rate instruments are subject to the same
risks as fixed income investments, particularly interest rate and credit risk.
Because there is no active secondary market for certain variable and floating
rate instruments, they may be more difficult to sell if the issuer defaults on
its payment obligations or during periods when an underlying fund is not
entitled to exercise its demand rights. As a result, the underlying fund could
suffer a loss with respect to these instruments.

Disclaimers

The Institutional S&P 500 Index Equity Fund is not sponsored, endorsed, sold or
promoted by S&P, nor does S&P guarantee the accuracy and/or completeness of the
S&P 500(R) Index or any data included therein. S&P makes no warranty, express
or implied, as to the results to be obtained by the Fund, owners of the Fund,
any person or any entity from the use of the S&P 500(R) Index or any data
included therein. S&P makes no express or implied warranties and expressly
disclaims all such warranties of merchantability or fitness for a particular
purpose for use with respect to the S&P(R) Index or any data included therein.

                                       14
<PAGE>

Your Investment
-------------------------------------------------------------------------------

This section describes how to do business with the Funds.

How To Reach The Funds

By telephone: 1-800-438-5789
           Call for shareholder services.

By mail:   The Munder Funds
           c/o PFPC Global Fund Services
           P.O. Box 60428
           King of Prussia, PA 19406-0428

Purchasing Shares

Purchase Price of Shares
Class A shares of a Fund are sold at the NAV next determined after a purchase
order is received in proper form plus any applicable sales charge. Please see
"Distribution Arrangements" below for information about sales charges.

Class B shares of a Fund are sold at NAV next determined after a purchase
order is received in proper form.

Broker-dealers or financial advisors (other than the Funds' distributor) may
charge you additional fees for shares you purchase through them.

Policies for Purchasing Shares

Investment minimums
 . Initial: $250
 . Subsequent: $50
 . Automatic Investment Plan: $50

Purchases over $250,000 must be for Class A shares.

Timing of orders
Purchase orders must be received by the Funds' distributor, transfer agent or
authorized dealer before the close of regular trading on the New York Stock
Exchange (normally, 4:00 p.m. Eastern time). Purchase orders received after
that time will be accepted as of the next business day.

Methods for Purchasing Shares
Investors may purchase shares:

 . By Broker and/or Financial Advisor. Any broker or financial advisor
  authorized by the Fund's distributor can sell you shares of the Fund. Please
  note that brokers may charge you fees for their services.

 . By Mail. You may open an account by completing, signing and mailing the
  attached account application form and a check or other negotiable bank draft
  (payable to The Munder Funds) for $250 or more to: The Munder Funds, c/o
  PFPC Global Fund Services, P.O. Box 60428, King of Prussia, Pennsylvania
  19406-0428. Be sure to specify on your account application form the class of
  shares being purchased. If the class is not specified, your purchase will
  automatically be invested in Class A shares. For additional investments,
  send a letter stating the Fund and share class you wish to purchase, your
  name and your account number with a check for $50 or more to the address
  listed above. We do not accept third party checks.

 . By Wire. To open a new account, you should call the Fund at (800) 438-5789
  to obtain an account number and complete wire instructions prior to wiring
  any funds. Within seven days of purchase, you must send a completed account
  application form containing your certified taxpayer identification number to
  the Fund's transfer agent at The Munder Funds, c/o PFPC Global Fund
  Services, P.O. Box 60428, King of Prussia, Pennsylvania 19406-0428. Wire
  instructions must state the Fund name, share class, your registered name and
  your account number. Your bank wire should be sent through the Federal
  Reserve Bank Wire System to:

  Boston Safe Deposit and Trust Company
  Boston, MA
  ABA# 011001234
  DDA# 16-798-3
  Account No.:

 You may make additional investments at any time using the wire procedures
 described above. Note that banks may charge fees for transmitting wires.

 . You may purchase shares through the Automatic Investment Plan.

 . You may purchase shares through the Reinvestment Privilege.

                                      15
<PAGE>

Exchanging Shares

Policies for Exchanging Shares
 . You may exchange Fund shares for shares of the same class of other Munder
  Funds based on their relative net asset values.

 . You may acquire shares of the Fund by exchanging shares of the same class of
  other Munder Funds.

 . You may also acquire Class A shares of the Fund by exchanging Class K shares
  of other Munder Funds. Class A shares of the Fund acquired in this manner may
  be exchanged for Class K shares of other Munder Funds, but they may not be
  exchanged for Class A shares of other Munder Funds.

 . Class A shares of a Munder money market fund that were (1) acquired through
  the use of the exchange privilege and (2) can be traced back to a purchase of
  shares in one or more Munder Funds for which a sales charge was paid, can be
  exchanged for Class A shares of the Fund.

 . Class B shares will continue to age from the date of the original purchase
  and will retain the same CDSC rate as they had before the exchange.

 . You must meet the minimum purchase requirements for the Munder Fund of that
  you purchase by exchange.

 . If you are exchanging into shares of a Munder Fund with a higher sales
  charge, you must pay the difference at the time of the exchange.

 . A share exchange is a taxable event and, accordingly, you may realize a
  taxable gain or loss.

 . Before making an exchange request, read the prospectus of the Munder Fund you
  wish to purchase by exchange. You can obtain a prospectus for any Munder Fund
  by contacting your broker or calling the Munder Funds at (800) 438-5789.

 . Brokers or financial advisors may charge you a fee for handling exchanges.

 . We may change, suspend or terminate the exchange privilege at any time. You
  will be given notice of any material modifications except where notice is not
  required.

Methods for Exchanging Shares
 . Exchanges By Telephone. You may give exchange instructions by telephone to
  the Fund at (800) 438-5789. You may not exchange shares by telephone if you
  hold share certificates. We reserve the right to reject any telephone
  exchange request and to place restrictions on telephone exchanges.

 . Exchanges By Mail. You may send exchange orders to your broker, your
  financial advisor or you may send them directly to the Fund's transfer agent
  at The Munder Funds, c/o PFPC Global Fund Services, P.O. Box 60428, King of
  Prussia, Pennsylvania 19406-0428.

Redeeming Shares

Redemption Price
We will redeem shares at the NAV next determined after we receive the
redemption request in proper form. We will reduce the amount you receive by the
amount of any applicable contingent deferred sales charge (CDSC).

Please see "Distribution Arrangements" below for information about CDSCs.

Policies for Redeeming Shares
 . For your protection, a medallion signature guarantee is required for the
  following redemption requests: (a) redemption proceeds greater than $50,000;
  (b) redemption proceeds not being made payable to the recordowner of the
  account; (c) redemption proceeds not being mailed to the address of record on
  the account; (d) if the redemption proceeds are being transferred to another
  Munder Fund account with a different registration; (e) change in ownership or
  registration of the account or (f) changes to banking information without a
  voided check being supplied. When the Fund requires a signature guarantee, a
  medallion signature guarantee must be provided. A medallion signature
  guarantee may be obtained from a domestic bank or trust company, broker,
  dealer, clearing agency, savings association, or other financial institution
  which is participating in a medallion program recognized by the Securities
  Transfer Association. The three recognized medallion programs are Securities
  Transfer Agents Medallion Program (STAMP), Stock Exchanges Medallion Program
  (SEMP) and New York Stock Exchange, Inc. Medallion Signature Program (NYSE
  MSP). Signature guarantees from financial institutions which are

                                       16
<PAGE>

 not participating in one of these programs will not be accepted.

Methods for Redeeming Shares
You may redeem shares of the Fund in several ways:

 . By Mail. You may mail your redemption request to: The Munder Funds, c/o PFPC
  Global Fund Services, P.O. Box 60428, King of Prussia, Pennsylvania 19406-
  0428. The redemption request should state the name of the Fund, share class,
  account number, amount of redemption, account name and where to send the
  proceeds. All account owners must sign.

 . By Telephone. You can redeem your shares by contacting your broker, your
  financial advisor or calling the Fund at (800) 438-5789. There is no minimum
  requirement for telephone redemptions.

 If you are redeeming at least $1,000 of shares and you have authorized
 expedited redemption on your account application form, simply call the Fund
 prior to 4:00 p.m. (Eastern time), and request the redemption proceeds be
 mailed to the commercial bank, registered broker-dealer or financial advisor
 you designated on your account application form. We will send your redemption
 proceeds to you on the next business day. We reserve the right at any time to
 change or impose fees for this expedited redemption procedure.

 During periods of unusual economic or market activity, you may experience
 difficulties or delays in effecting telephone redemptions. In such cases you
 should consider placing your redemption request by mail.

 . You may redeem shares through the Automatic Withdrawal Plan.

Additional Policies For Purchases, Exchanges And Redemptions

 . We consider orders to be in "proper form" when all required documents are
  properly completed, signed and received.

 . The Fund reserves the right to reject any purchase order.

 . At any time, the Fund may change any of its purchase or redemption
  procedures, and may suspend the sale of its shares.

 . The Fund may delay sending redemption proceeds for up to seven days, or
  longer if permitted by the Securities and Exchange Commission.

 . We will typically send redemption amounts to you within seven business days
  after you redeem shares. We may hold redemption amounts from the sale of
  shares you purchased by check until the purchase check has cleared, which may
  be as long as 15 days.

 . To limit the Fund's expenses, we no longer issue share certificates.

 . The Fund may temporarily stop redeeming shares if:

 . the New York Stock Exchange is closed;

 . trading on the New York Stock Exchange is restricted;

 . an emergency exists and the Fund cannot sell its assets or accurately
  determine the value of its assets; or

 . the Securities and Exchange Commission orders the Fund to suspend
  redemptions.

 . The Fund reserves the right to make payment for redeemed shares wholly or in
  part by giving the redeeming shareholder portfolio securities. The
  shareholder may pay transaction costs to dispose of these securities.

 . We record all telephone calls for your protection and take measures to
  identify the caller. As long as the Fund's transfer agent takes reasonable
  measures to authenticate telephone requests on an investor's account, neither
  the Fund, the Fund's distributor nor the transfer agent will be held
  responsible for any losses resulting from unauthorized transactions.

 . We may redeem your account if its value falls below $250 as a result of
  redemptions (but not as a result of a decline in NAV). You will be notified
  in writing and allowed 60 days to increase the value of your account to the
  minimum investment level.

 . If you purchased shares directly from the Fund, the Fund's transfer agent
  will send you confirmations of the opening of an account and of all
  subsequent purchases, exchanges or

                                       17
<PAGE>

 redemptions in the account. If your account has been set up by a broker or
 other investment professional, account activity will be detailed in their
 statements to you.

 . The exchange privilege is not intended as a vehicle for short-term trading.
  Excessive exchange activity may interfere with portfolio management and have
  an adverse effect on all shareholders. The Fund and its distributor reserve
  the right to refuse any purchase or exchange request that could adversely
  affect the fund or its operations, including those from any individual or
  group who, in the Fund's view, is likely to engage in excessive trading or
  any order considered market-timing activity. If the Fund refuses a purchase
  or exchange request and the shareholder deems it necessary to redeem their
  account, any CDSC as permitted by the prospectus will be applicable.

 Additionally, in no event will any Fund permit more than six exchanges into
 or out of the Fund in any one-year period per account, tax identification
 number, social security number or related investment group. The Munder Money
 Market Funds are exempt from this policy.

Shareholder Privileges

Automatic Investment Plan (AIP). Under the AIP you may arrange for periodic
investments in the Fund through automatic deductions from a checking or savings
account. To enroll in the AIP you should complete the AIP application form or
call the Fund at (800) 438-5789. The minimum pre-authorized investment amount
is $50. You may discontinue the AIP at any time. We may discontinue the AIP on
30 days' written notice to you.

Reinvestment Privilege. For 60 days after you sell shares of the Fund, you may
reinvest your redemption proceeds in shares of the same class of the SAME Fund
at NAV. Any CDSC you paid on the amount you are reinvesting will be credited to
your account. You may use this privilege once in any given twelve-month period
with respect to your shares of the Fund. You or your broker must notify the
Fund's transfer agent in writing at the time of reinvestment in order to
eliminate the sales charge on your reinvestment.

Automatic Withdrawal Plan (AWP). If you have an account value of $2,500 or more
in the Fund, you may redeem shares on a monthly, quarterly, semi-annual or
annual basis. The minimum withdrawal is $50. We usually process withdrawals on
the 20th day of the month and promptly send you your redemption amount. You may
enroll in the AWP by completing the AWP application form available through the
Funds' transfer agent. To participate in the AWP you must have your dividends
automatically reinvested and may not hold share certificates. You may change or
cancel the AWP at any time upon notice to the Fund's transfer agent. You should
not buy Class A shares (and pay a sales charge) while you participate in the
AWP and you must pay any applicable CDSC when you redeem shares.

                                       18
<PAGE>

Distribution Arrangements
--------------------------------------------------------------------------------
Share Class Selection

The Fund offers Class A and Class B shares. Each class has its own cost
structure, allowing you to choose the one that best meets your requirements
given the amount of your purchase and the intended length of your investment.
You should consider both ongoing annual expenses and initial sales charge or
CDSC in estimating the costs of investing in a particular class of shares.

Class A shares
 . Front end sales charge. There are several ways to reduce these sale charges.

 . Lower annual expenses than Class B shares.

Class B shares

 . No front end sales charge. All your money goes to work for you right away.

 . Higher annual expenses than Class A shares.

 . A CDSC on shares you sell within six years of purchase.

 . Automatic conversion to Class A shares approximately six years after
  issuance, thus reducing future annual expenses.

 . CDSC is waived for certain redemptions.

The Fund also issues Class Y shares, which have different sales charges,
expense levels and performance. Class Y shares are available to limited types
of investors. Call (800) 438-5789 to obtain more information about Class Y
shares.

Applicable Sales Charge--Class A Shares

You can purchase Class A shares at NAV plus an initial sales charge. The sales
charge as a percentage of your investment decreases as the amount you invest
increases. The current sales charge rates and commissions paid to selected
dealers as follows:

<TABLE>
<CAPTION>
                                                  Sales Charge as     Dealer
                                                  a Percentage of   Reallowance
                                                  ----------------     as a
                                                              Net  Percentage of
                                                     Your    Asset the Offering
                                                  Investment Value     Price
                                                  ---------- ----- -------------
<S>                                               <C>        <C>   <C>
Less than $25,000................................   5.50%    5.82%         5.00%
$25,000 but less than $50,000....................   5.25%    5.54%         4.75%
$50,000 but less than $100,000...................   4.50%    4.71%         4.00%
$100,000 but less than $250,000..................   3.50%    3.63%         3.25%
$250,000 but less than $500,000..................   2.50%    2.56%         2.25%
$500,000 but less than $1,000,000................   1.50%    1.52%         1.25%
$1,000,000 or more...............................   None*    None* (see below)**
</TABLE>
--------
   * No initial sales charge applies on investments of $1 million or more.
     However, a CDSC of 1% is imposed on certain redemptions within one year of
     purchase.
  ** The Distributor will pay a 1% commission to dealers who initiate and are
     responsible for purchases of $1 million or more.

Sales Charge Waivers--General
We will waive the initial sales charge on Class A shares for the following
types of purchasers (the word "advisor" in the following refers to Munder
Capital Management the advisor to the Munder Funds):

1. individuals with an investment account or relationship with the advisor;

2. full-time employees and retired employees of the advisor or its affiliates,
employees of the Funds' service providers and immediate family members of such
persons;

3. registered broker-dealers or financial advisors that have entered into
selling agreements with the Fund's distributor, for their own accounts or for
retirement plans for their employees or sold to registered representatives for
full-time employees (and their families) that certify to the distributor at the
time of purchase that such purchase is for their own account (or for the
benefit of their families);

4. certain qualified employee benefit plans as described below;

5. individuals who reinvest a distribution from a qualified retirement plan for
which the advisor serves as investment advisor;

                                       19
<PAGE>

6. individuals who reinvest the proceeds of redemptions from Class Y Shares of
another Munder Fund, within 60 days of redemption;

7. banks and other financial institutions that have entered into agreements
with the Munder Funds to provide shareholder services for customers (including
customers of such banks and other financial institutions, and the immediate
family members of such customers);

8. fee-based financial planners or employee benefit plan consultants acting for
the accounts of their clients;

9. employer sponsored retirement plans which are administered by Universal
Pensions, Inc. (UPI Plans); and

10. employer sponsored 401(k) plans that are administered by Merrill Lynch
Group Employee Services (Merrill Lynch Plans) which meet the criteria described
below under "Sales Charge Waivers--Qualified Employer Sponsored Retirement
Plans."

Sales Charge Waivers--Qualified Employer Sponsored Retirement Plans
We will waive the initial sales charge on purchases of Class A shares by
employer sponsored retirement plans that are qualified under Section 401(a) or
Section 403(b) of the Internal Revenue Code (each, a Qualified Employee Benefit
Plan) and that (1) invest $1,000,000 or more in Class A shares offered by the
Munder Funds or (2) have at least 75 eligible plan participants.

In addition, we will waive the CDSC of 1% charged on certain redemptions within
one year of purchase for Qualified Employee Benefit Plan purchases that meet
the above criteria. A 1% commission will be paid by the distributor to dealers
and other entities (as permitted by applicable Federal and state law) who
initiate and are responsible for Qualified Employee Benefit Plan purchases that
meet the above criteria. This sales charge waiver does not apply to Simplified
Employee Pension Plans (SEPs), Individual Retirement Accounts (IRAs), UPI Plans
and Merrill Lynch Plans.

UPI Plans. We also will waive (i) the initial sales charge on Class A shares
purchased by UPI Plans for employees participating in an employer-sponsored or
administered retirement program operating under Section 408A of the Internal
Revenue Code and (ii) the CDSC of 1% imposed on certain redemptions within one
year of purchase for these accounts. The distributor will pay a 1% commission
to dealers and others (as permitted by applicable Federal and state law) who
initiate and are responsible for UPI Plan purchases.

Merrill Lynch Plans. We will waive the initial sales charge for all investments
by Merrill Lynch Plans if

(i) the Plan is recordkept on a daily valuation basis by Merrill Lynch Group
    Employee Services (Merrill Lynch) and, on the date the plan sponsor signs
    the Merrill Lynch Recordkeeping Service Agreement, the Plan has $3 million
    or more in assets invested in broker/dealer funds not advised or managed by
    Merrill Lynch Asset Management, L.P. (MLAM) that are made available
    pursuant to a Services Agreement between Merrill Lynch and the Fund's
    distributor and in funds advised or managed by MLAM (collectively, the
    Applicable Investments); or

(ii) the Plan is recordkept on a daily valuation basis by an independent
     recordkeeper whose services are provided through a contract or alliance
     arrangement with Merrill Lynch, and on the date the plan sponsor signs the
     Merrill Lynch Recordkeeping Service Agreement, the Plan has $3 million or
     more in assets, excluding money market funds, invested in Applicable
     Investments; or

(iii) the Plan has 500 or more eligible employees, as determined by the Merrill
      Lynch plan conversion manager, on the date the plan sponsor signs the
      Merrill Lynch Recordkeeping Service Agreement.

For further information on sales charge waivers, call (800) 438-5789.

Sales Charge Reductions
You may qualify for reduced sales charges in the following cases:

 . Letter of Intent. If you intend to purchase at least $25,000 of Class A
  shares of the Fund you may wish to complete the Letter of Intent section of
  your account application form. By doing so, you agree to invest a certain
  amount over a 13-month period. You would pay a sales charge on any Class A
  shares you purchase during the 13

                                       20
<PAGE>

 months based on the total amount to be invested under the Letter of Intent.
 You can apply any investments you made in any of the Munder Funds during the
 preceding 90-day period toward fulfillment of the Letter of Intent (although
 there will be no refund of sales charges you paid during the 90-day period).
 You should inform the Fund's transfer agent that you have a Letter of Intent
 each time you make an investment.

 You are not obligated to purchase the amount specified in the Letter of
 Intent. If you purchase less than the amount specified, however, you must pay
 the difference between the sales charge paid and the sales charge applicable
 to the purchases actually made. The Fund's custodian will hold such amount in
 escrow. The custodian will pay the escrowed funds to your account at the end
 of the 13 months unless you do not complete your intended investment.

 . Quantity Discounts. You may combine purchases of Class A shares that are made
  by you, your spouse, your children under age 21 and your IRA when calculating
  the sales charge. You must notify your broker, your financial advisor or the
  Fund's transfer agent to qualify.

 . Right of Accumulation. You may add the value of any other Class A shares of
  non-money market Munder Funds you already own to the amount of your next
  Class A share investment for purposes of calculating the sales charge at the
  time of the current purchase. You must notify your broker, your financial
  advisor or the Funds' transfer agent to qualify.

Certain brokers or financial advisors may not offer these programs or may
impose conditions or fees to use these programs. You should consult with your
broker prior to purchasing the Funds' shares.

For further information on sales charge reductions, call (800) 438-5789.

Cdsc

You pay a CDSC when you redeem:

 . Class A shares that were bought as part of an investment of at least $1
  million within one year of buying them;

 . Class B shares within six years of buying them.

These time periods include the time you held Class B shares of another Munder
Fund which you may have exchanged for Class B shares of the Fund you are
redeeming.

The CDSC schedule for Class B shares is set forth below. Consult the Statement
of Additional Information for the CDSC schedule for Class B shares acquired
through an exchange of shares purchased on or before June 27, 1995. The CDSC is
based on the original NAV at the time of your investment or the NAV at the time
of redemption, whichever is lower. Shares purchased through reinvestment of
distributions are not subject to CDSC.

<TABLE>
<CAPTION>
Years Since Purchase                                                       CDSC
--------------------                                                       -----
<S>                                                                        <C>
First..................................................................... 5.00%
Second.................................................................... 4.00%
Third..................................................................... 3.00%
Fourth.................................................................... 3.00%
Fifth..................................................................... 2.00%
Sixth..................................................................... 1.00%
Seventh and thereafter.................................................... 0.00%
</TABLE>

If you sell some but not all of your shares, certain shares not subject to CDSC
(i.e., shares purchased with reinvested dividends) will be redeemed first,
followed by shares subject to the lowest CDSC (typically shares held for the
longest time).

For example, assume an investor purchased 1,000 shares at $10 a share (for a
total cost of $10,000). Three years later, the shares have a net asset value of
$12 per share and during that time, the investor acquired 100 additional shares
through dividend reinvestment. If the investor then makes one redemption of 500
shares (resulting in proceeds of $6,000, 500 shares x $12 per share), the first
100 shares redeemed will not be subject to the CDSC because they were acquired
through reinvestment of dividends. With respect to the remaining 400 shares
redeemed, the CDSC is charged at $10 per share (because the original purchase
price of $10 per share is lower than the current net asset value of $12 per
share). Therefore, only $4,000 of the $6,000 such investor received from
selling his or her shares will be subject to the CDSC, at a rate of 3.00% (the
applicable rate in the third year after purchase).

At the time of purchase of Class B shares, the Fund's distributor pays sales
commissions of 4.00% of the purchase price to brokers that initiate and are
responsible for purchases of such Class B shares.

                                       21
<PAGE>

CDSC Waivers
We will waive the CDSC payable upon redemptions for:

 . redemptions made within one year after the death of a shareholder or
  registered joint owner;

 . minimum required distributions made from an IRA or other retirement plan
  account after you reach age 70 1/2;

 . involuntary redemptions made by the Fund;

 . redemptions limited to 10% per year of an account's net asset value if taken
  by Systematic Withdrawal Plan ("SWP"). For example, if your balance on
  December 31st is $10,000 you can redeem up to $1,000 that following year free
  of charge through SWP.

We will waive the CDSC payable upon redemptions of shares which you purchased
after December 1, 1998 (or acquired through an exchange of shares of another
Munder Fund purchased after December 1, 1998) for:

 . redemptions made from an IRA or other individual retirement plan account
  established through Comerica Securities, Inc. after you reach age 59 1/2 and
  after the eighteen month anniversary of the purchase of Fund shares.

Consult the Statement of Additional Information for Class B CDSC waivers which
apply when you redeem shares acquired through an exchange of shares of another
Munder Fund purchased on or before June 27, 1995.

We will waive the CDSC for Class B shares for all redemptions by Merrill Lynch
Plans if:

(i) the Plan is recordkept on a daily valuation basis by Merrill Lynch; or

(ii) the Plan is recordkept on a daily valuation basis by an independent
     recordkeeper whose services are provided through a contract or alliance
     arrangement with Merrill Lynch; or

(iii) the Plan has less than 500 eligible employees, as determined by the
      Merrill Lynch plan conversion manager, on the date the plan sponsor signs
      the Merrill Lynch Recordkeeping Service Agreement.

12b-1 Fees

The Fund has adopted Rule 12b-1 plans with respect to its Class A and Class B
shares that allow the Fund to pay distribution and other fees for the sale of
its shares and for services provided to shareholders. Under the plans, the Fund
may pay up to .25% of the daily net assets of Class A and Class B shares to pay
for certain shareholder services provided by institutions that have agreements
with the Fund's distributor to provide such services. The Fund may also pay up
to .75% of the daily net assets of the Class B shares to finance activities
relating to the distribution of its shares.

Because the fees are paid out of the Fund's assets on an on-going basis, over
time these fees will increase the cost of an investment in the Fund and may
cost a shareholder more than paying other types of sales charges.

Other Information

The advisor may, from time to time, make payments to banks, broker-dealers,
financial advisors or other financial institutions for certain services to the
Fund and/or its shareholders, including sub-administration, sub-transfer agency
and shareholder servicing. The advisor may make such payments out of its own
resources and there are no additional costs to the Fund or its shareholders.

Please note that Comerica Bank, an affiliate of the advisor, receives a fee
from the Fund for providing shareholder services to its customers who own
shares of the Fund.

                                       22
<PAGE>

Pricing Of Fund Shares
--------------------------------------------------------------------------------

The Fund's NAV is calculated on each day the New York Stock Exchange is open.
NAV is the value of a single share of the Fund.

The Fund calculates NAV as of the close of regular trading on the New York
Stock Exchange, normally 4:00 p.m. (Eastern time). If the New York Stock
Exchange closes early, the Fund will accelerate calculation of NAV and
transaction deadlines to that time.

The NAV of each underlying fund is generally based on the market value of the
securities held in the underlying fund. If market values are not available, the
fair value of securities is determined in good faith by, or using procedures
approved by, the boards of directors/trustees of the underlying funds.

Trading in foreign securities may be completed at times that vary from the
closing of the New York Stock Exchange. An underlying fund values foreign
securities at the latest closing price on the exchange on which they are traded
immediately prior to the closing of the New York Stock Exchange. Certain
foreign currency exchange rates may also be determined at the latest rate prior
to the closing of the New York Stock Exchange. Foreign securities quoted in
foreign currencies are translated into U.S. dollars at current rates.
Occasionally, events that affect these values and exchange rates may occur
between the times at which they are determined and the closing of the New York
Stock Exchange. If the advisor believes that such events materially affect the
value of portfolio securities, these securities may be valued at their fair
market value as determined in good faith by, or using procedures approved by,
the underlying funds' boards of directors/trustees.

Distributions
--------------------------------------------------------------------------------

As a shareholder, you are entitled to your share of the Fund's net income and
gains on its investments. The Fund passes substantially all of its earnings
along to its shareholders as distributions. When the Fund earns dividends from
stocks and interest from debt securities and distributes these earnings to
shareholders, it is called a dividend distribution. The Fund realizes capital
gains when it sells securities for a higher price than it paid. When these
gains are distributed to shareholders, it is called a capital gain
distribution.

The Fund pays dividends, if any, at least annually.

The Fund distributes its net realized capital gains, if any, at least annually.

It is possible that the Fund may make a distribution in excess of the Fund's
earnings and profits. You will treat such a distribution as a return of capital
which is applied against and reduces your basis in your shares. You will treat
the excess of any such distribution over your basis in your shares as gain from
a sale or exchange of the shares.

The Fund will pay distributions in additional shares of the same class of that
Fund. If you wish to receive distributions in cash, either, indicate this
request on your account application form or notify the Fund at (800) 438-5789.

                                       23
<PAGE>

Federal Tax Considerations
--------------------------------------------------------------------------------

Investments in the Fund may have tax consequences that you should consider.
This section briefly describes some of the more common federal tax
consequences. A more detailed discussion about the tax treatment of
distributions from the Fund and about other potential tax liabilities,
including backup withholding for certain taxpayers and about tax aspects of
dispositions of shares of the Fund, is contained in the Statement of Additional
Information. You should consult your tax adviser about your own particular tax
situation.

Taxes On Distributions

You will generally have to pay federal income tax on all Fund distributions.
Distributions will be taxed in the same manner whether you receive the
distributions in cash or in additional shares of the Fund. Shareholders not
subject to tax on their income generally will not be required to pay any tax on
distributions.

Distributions that are derived from net long-term capital gains generally will
be taxed as long-term capital gains. Dividend distributions and short-term
capital gains generally will be taxed as ordinary income. The tax you pay on a
given capital gains distribution generally depends on how long the Fund held
the portfolio securities it sold. It does not depend on how long you held your
Fund shares.

Distributions are generally taxable to you in the year in which they are paid,
with one exception: distributions declared in October, November or December,
but not paid until January of the following year, are taxed as though they were
paid on December 31 in the year in which they were declared.

Shareholders generally are required to report all Fund distributions on their
federal income tax returns. Each year the Fund will send you information
detailing the amount of ordinary income and capital gains paid to you for the
previous year.

Taxes On Sales Or Exchanges

If you sell shares of the Fund or exchange them for shares of another Munder
Fund, you generally will be subject to tax on any taxable gain. Taxable gain is
computed by subtracting your tax basis in the shares from the redemption
proceeds (in the case of a sale) or the value of the shares received (in the
case of an exchange). Because your tax basis depends on the original purchase
price and on the price at which any dividends may have been reinvested, you
should be sure to keep account statements so that you or your tax preparer will
be able to determine whether a sale or an exchange will result in a taxable
gain.

Other Considerations

If you buy shares of the Fund just before the Fund makes any distribution, you
will pay the full price for the shares then receive back a portion of the money
you just invested in the form of a taxable distribution.

If you have not provided complete, correct taxpayer information by law, the
Fund must withhold a portion of your distributions and redemption proceeds to
pay federal income taxes.

                                       24
<PAGE>

Management
--------------------------------------------------------------------------------

Investment Advisor

Munder Capital Management ("MCM"), 480 Pierce Street, Birmingham, Michigan
48009 is the investment advisor of each Fund and each underlying fund except
Institutional S&P 500 Index Equity Fund and International Equity Fund. The
advisors provide overall investment management for the Funds. As of March 31,
2000, MCM and its affiliates had approximately $62 billion in assets under
management, of which $39 billion were invested in equity securities, $7 billion
were invested in money market or other short-term instruments, $6 billion were
invested in other fixed income securities, $3 billion were invested in balanced
investment and $7 billion in non-discretionary assets.

World Asset Management ("World"), 255 East Brown Street, Birmingham, Michigan
48009, is the investment advisor of Institutional S&P 500 Index Equity Fund and
International Equity Fund. World is a wholly-owned subsidiary of the advisor.
As of March 31, 2000, World had approximately $22.7 billion in assets under
management, of which $17.6 billion were invested in domestic equity securities,
$4.5 billion were invested in international equity securities and $600 billion
were invested in other fixed income securities.

Framlington Overseas Investment Management Limited, and affiliate of the
advisor, is the sub-advisor of the Framlington Emerging Markets Fund,
Framlington Global Financial Services Fund, Framlington Healthcare Fund and
Framlington International Growth Fund.

Portfolio Managers

A committee of professional portfolio managers employed by MCM makes investment
decision for the Fund.

                                       25
<PAGE>

Financial Highlights
--------------------------------------------------------------------------------

The financial highlights table is intended to help shareholders understand the
Fund's financial performance for the period of the Fund's operations. Certain
information reflects financial results for a single Fund share. The total
returns in the table represent the rate that an investor would have earned (or
lost) on an investment in the Fund (assuming reinvestment of all dividends and
distributions). The information has been audited by Ernst & Young LLP,
independent auditors, whose report, along with the Fund's financial statements,
are included in the annual reports of the Fund, and are incorporated by
reference into the Statement of Additional Information. The information for the
period ended December 31, 1999 is unaudited, is included in the semi-annual
report of the Fund, and is incorporated by reference into the Statement of
Additional Information. You may obtain the semi-annual and annual reports
without charge by calling (800) 438-5789.

<TABLE>
<CAPTION>
                                            Munder Fund of Funds (a)
                          -----------------------------------------------------------------------
                            Period                              Period
                             Ended       Year      Period        Ended        Year       Period
                           12/31/99      Ended     Ended       12/31/99       Ended      Ended
                          (Unaudited)   6/30/99  6/30/98(d)   (Unaudited)    6/30/99   6/30/98(d)
                            Class A     Class A   Class A       Class B      Class B    Class B
                          -----------   -------  ----------   -----------    -------   ----------
<S>                       <C>           <C>      <C>          <C>            <C>       <C>
Net asset value,
 beginning of period....    $13.21      $12.58     $13.23       $13.20       $12.54      $11.40
                            ------      ------     ------       ------       ------      ------
Income from investment
 operations:
Net investment income...      0.03        0.05       0.01        (0.03)       (0.01)      (0.04)
Net realized and
 unrealized gain/(loss)
 on investments.........      1.73        0.74      (0.25)        1.72         0.80        1.18
                            ------      ------     ------       ------       ------      ------
Total from investment
 operations.............      1.76        0.79      (0.24)        1.69         0.79        1.14
                            ------      ------     ------       ------       ------      ------
Less distributions:
Dividends from net
 investment income......     (0.21)      (0.06)     (0.01)       (0.18)           -           -
Distributions in excess
 of net investment
 income.................         -       (0.02)         -            -        (0.04)          -
Distributions from net
 realized gains.........     (0.30)      (0.09)     (0.36)       (0.30)       (0.09)          -
Distributions in excess
 of net realized gains..         -           -      (0.04)       (0.40)           -           -
                            ------      ------     ------       ------       ------      ------
Total distributions.....     (0.51)      (0.17)     (0.41)       (0.48)       (0.13)          -
                            ------      ------     ------       ------       ------      ------
Net asset value, end of
 period.................    $14.45      $13.20     $12.58       $14.41       $13.20      $12.54
                            ------      ------     ------       ------       ------      ------
Total return (c)........     13.63%       6.41%     (1.20)%      13.10%        6.40%      10.00%
                            ------      ------     ------       ------       ------      ------
Ratios to average net
 assets/ supplemental
 data:
Net assets, end of
 period (in 000's)......    $  490      $  344     $  154       $  319       $  222      $  260
Ratio of operating
 expenses to average net
 assets.................      0.66%(b)    0.66%      0.88%(b)     1.36%(b)     1.36%       1.58%(b)
Ratio of net investment
 income/(loss) to
 average net assets.....      0.47%(b)    0.12%      0.09%(b)    (0.23)%(b)   (0.58)%     (0.61)%(b)
Portfolio turnover rate.        24%         73%        55%          24%          73%         55%
Ratio of operating
 expenses to average net
 assets without waivers.      0.91%(b)    0.93%      1.06%(b)     1.61%(b)     1.63%       1.76%(b)
</TABLE>
--------
(a) The Munder Fund of Funds (formerly the Munder All-Season Aggressive Fund)
    Class A Shares and B Shares commenced operations on October 7, 1997 and
    January 9, 1998, respectively.
(b) Annualized.
(c) Total return represents aggregate total return for the period indicated and
    does not reflect any applicable sales charges.
(d) Per share numbers have been calculated using the average shares method.


                                       26
<PAGE>

More information about the Fund is available free upon request, including the
following:

Annual/Semi-Annual Reports

You will receive unaudited semi-annual reports and audited annual reports on a
regular basis from the Fund. In the Fund's annual report, you will find a
discussion of market conditions and investment strategies that significantly
affected the Fund's performance during its last fiscal year. In addition, you
will also receive updated prospectuses or supplements to this prospectus. In
order to eliminate duplicate mailings, the Fund will only send one copy of the
above communications to (1) accounts with the same primary record owner, (2)
joint tenant accounts, (3) tenant in common accounts and (4) accounts which have
the same address.


Statement of Additional Information

Provides more details about the Fund and its policies. A current Statement of
Additional Information is on file with the Securities and Exchange Commission
and is incorporated herein by reference (is legally considered part of this
prospectus).


To Obtain Information:
-------------------------------------------------------------------------------
By telephone
1-800-438-5789

By mail
Write to:
The Munder Funds
c/o PFPC Global Fund Services
P.O. Box 60428
King of Prussia, PA 19406-0428

On the Internet
Text-only versions of fund documents can be viewed online or downloaded from:

     Securities and Exchange Commission
     http://www.sec.gov

You can also obtain copies by visiting the Securities and Exchange Commission's
Public Reference Room in Washington, D.C. (phone 1-202-942-8090) or by sending
your request and a duplicating fee to the Securities and Exchange Commission's
Public Reference Section, Washington, D.C. 20549-0102. You may also obtain
information, after paying a duplicating fee, by electronic request at:
[email protected].

You may also find more information about the Fund on the Internet at:
http://www.munderfunds.com
-------------------------------------------------------------------------------

The Munder Funds, Inc.
SEC file number:  811-7346

PROMFFAB600
Investment Advisor:  Munder Capital Management
Distributor:  Funds Distributor, Inc.
<PAGE>

MUTUAL FUND
      Application                                     [LOGO OF THE MUNDER FUNDS]


PLEASE MAIL YOUR COMPLETE APPLICATION (printed or typed)
ALONG WITH YOUR CHECK TO:  The Munder Funds
                           c/o PFPC Global Fund Services
                           P.O. Box 60428
                           King of Prussia, PA 19406-0428

If you have questions regarding this application, please telephone the Transfer
Agent at 1.800.438.5789

[_] New Account     [_] Change to an Existing Account _________________________

                           1.  ACCOUNT REGISTRATION

--------------------------------------------------------------------------------
Name                                             Social Security Number

--------------------------------------------------------------------------------
Joint Owner (if any)                     (If Joint Tenancy, use Social Security
                                               Number of first joint owner)
OR

Uniform Transfer to Minor:

                                         for:
--------------------------------------------------------------------------------
Custodian Name (one custodian only)      Minor's Name (one minor only)

--------------------------------------------------------------------------------
State (Custodian's State of Residence)          Minor's Social Security Number

OR
   [_] Trust   [_] Corporation   [_] Other (please specify) ____________________

--------------------------------------------------------------------------------
Trust/Corporation Name

--------------------------------------------------------------------------------
Trust Date                                      Tax Identification Number

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


                             2.  MAILING ADDRESS
     (address for reports, dividends, statements and redemption proceeds)

--------------------------------------------------------------------------------
Street                                                 Apt.

--------------------------------------------------------------------------------
City                   State      Zip Code             Telephone Number

--------------------------------------------------------------------------------
Non-Resident Alien:  [_] Yes   [_] No  If Yes, Country of Residence_____________

<PAGE>

        3.  INITIAL INVESTMENT


With as little as $250* you can invest in any Munder Fund. Please be sure to
read the prospectus carefully before investing or sending money. You may
request an additional prospectus by calling 1.800.438.5789.

<TABLE>
<CAPTION>
                                                                              Class C/
NAME OF MUNDER FUND                              Fund Code  Class A  Class B  Class II   Investment Amount
                                                               200     300     400/700
                                                               ---     ---     -------
<S>                                              <C>        <C>      <C>      <C>        <C>
[ ]  Munder Fund of Funds                            52       [ ]     [ ]      N/A       $___________________
[ ]  Munder Balanced Fund                            14       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Focus Growth Fund                        28       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Equity Income Fund                       18       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Future Technology Fund                   33       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Growth Opportunities Fund                32       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Index 500 Fund                           06       [ ]     [ ]      N/A       $___________________
[ ]  Munder International Equity Fund                07       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Int'l NetNet Fund                                         [ ]      [ ]       $___________________
[ ]  Munder Micro-Cap Equity Fund                    29       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Multi-Season Growth Fund                 20       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Real Estate Equity Investment Fund       21       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Small-Cap Value Fund                     30       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Small Company Growth Fund                05       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Framlington Emerging Mrkts. Fund         81       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Framlington Global Fin'l Srvcs Fund      83       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Framlington Healthcare Fund              82       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Framlington Int'l. Growth Fund           80       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Bond Fund                                09       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Intermediate Bond Fund                   08       [ ]     [ ]      [ ]       $___________________
[ ]  Munder International Bond Fund                  25       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Michigan Tax-Free Bond Fund              16       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Tax-Free Bond Fund                       17       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Tax-Free Short-Intrmd. Bond Fund         12       [ ]     [ ]      [ ]       $___________________
[ ]  Munder U.S. Government Income Fund              19       [ ]     [ ]      [ ]       $___________________
[ ]  Munder Cash Investment Fund                     01       [ ]     N/A      N/A       $___________________
[ ]  Money Market Fund+                              22       N/A     N/A      N/A       $___________________
[ ]  Munder Tax-Free Money Market Fund               02       [ ]     N/A      N/A       $___________________
[ ]  Munder U.S. Treasury Money Market Fund          03       [ ]     N/A      N/A       $___________________
[ ]  Other Munder Fund _________________________________      [ ]     [ ]      [ ]       $___________________
                                                             Total Amount Invested       $___________________

</TABLE>
[ ] By Check (Payable to The Munder Funds)
[ ] By Wire. Account Number: ____________ (Account number assigned by Bank from
    which assets were wired.)
* $50 per Fund if the Automatic Investment Plan Option is being established at
  this time (please complete section 6).
+ Available through exchange from other Munder Funds only
<PAGE>

4.  DEALER INFORMATION


FOR DEALER USE ONLY

We hereby authorize PFPC Global Fund Services to act as our agent in connection
with transactions authorized by this Application and agree to notify PFPC Global
Fund Services of any purchase made under a Letter of Intent or Right of
Accumulation.


--------------------------------------------------------------------------------
Dealer's Name                     Main Office Address


--------------------------------------------------------------------------------
Representative's Name             Branch #                 Rep #


--------------------------------------------------------------------------------
Branch Address                                             Telephone #


--------------------------------------------------------------------------------
Authorized Signature of Dealer                             Title



5.  DISTRIBUTION OPTION


DIVIDENDS                                   CAPITAL GAINS

[_] A. Reinvest in additional shares.     [_] A. Reinvest in additional shares.

[_] B. Pay in Cash by Check               [_] B. Pay in Cash by Check

[_] C. Pay in Cash by Electronic Funds    [_] C. Pay in Cash by Electronic Funds
       Transfer to my Bank                       Transfer to my Bank

       Fill out banking information in           Fill out banking information in
       Section 9                                 Section 9



6.  AUTOMATIC INVESTMENT PLAN (OPTIONAL)


[_] YES, I(We) wish to participate in the Automatic Investment Plan (AIP), and
authorize PFPC Global Fund Services, The Munder Funds' transfer agent to perform
the following:

Amount to invest $_________ ($50 minimum)   [_] Monthly  or   [_] Quarterly
[_] 5th or the   [_] 20th of the month


--------------------------------------------------------------------------------
Name of Fund                            Percentage (equal if not indicated)


--------------------------------------------------------------------------------
Name of Fund                            Percentage (equal if not indicated)

     Fill out banking information in Section 9



7.  AUTOMATIC WITHDRAWAL PLAN


[_] YES, I(We) authorize the redemption of shares from my Munder Fund account to
meet withdrawal payments on the 20th of each [_] Monthly or [_] Quarter.


--------------------------------------------------------------------------------
Name of Fund to Redeem Shares From


--------------------------------------------------------------------------------
Amount of Each Withdrawal ($50 minimum)

Payments will be made to (Choose one):   [_] Owner's Address of Record

                                         [_] Owner's Checking/Savings Account

                                         [_] Fill out banking information in
                                             Section 9

                                         [_] Other listed below:


--------------------------------------------------------------------------------
Name and Address

<PAGE>

     8. TELEPHONE REDEMPTION & EXCHANGE AGREEMENT

Please check the box if you want this option.
[ ]  I(We) authorize PFPC Global Fund Services to act upon instructions received
     by telephone from me(us) to redeem or to exchange shares of The Munder
     Funds.
     1. I(We) relieve the Funds or PFPC Global Fund Services of any liability
        for the loss, cost or expense for acting upon such instructions
        reasonably believed to be from me(us).
     2. I(We) assume responsibility for notifying the Funds within seven (7)
        business days if a confirmation for the transaction is not received or
        is incorrect.
     3. If an exchange involves an initial investment into a Fund, the account
        registration will carry the same registration as set forth above.
     4. An exchange deemed to be the initial purchase of a Fund must meet the
        minimum initial investment requirement of $250 per Fund unless the
        shareholder is establishing an Automatic Investment Plan.
     5. Redemption proceeds will be sent only to my account address of record or
        banking wire instructions as established in Section 9.
_______________________________________________________________________________
Name                                   Name
     Fill out banking information in Section 9

     9. BANKING INFORMATION
_______________________________________________________________________________
Bank Name       Address                     [ ] Checking    [ ] Savings Account

_______________________________________________________________________________
ABA Number (Bank Routing Number)        Account Number

_______________________________________________________________________________
Bank Account Registration

[ ] Check if Section 5 (Distribution Option), "Choice C" was completed. I(We)
authorize The Munder Funds to deposit distributions into the account indicated
above.

[ ] Check if Section 6 (Automatic Investment Plan), was completed. Please note
that your bank will clear and process each bank draft and will include it with
your regular statements. However, acceptance of this authorization in
conditional upon approval of your authorization by your bank, which will allow
PFPC Global Fund Services, the transfer agent of The Munder Funds, to act as
your agent with regard to the Automatic Investment Plan (AIP). The AIP will
automatically terminate without notice if any bank draft in not paid upon
presentation by PFPC Global Fund Services, to your bank. The AIP may be modified
or terminated at any time, upon thirty (30)-days written notice.

[ ] Check if Section 7 (Automatic Withdrawal Plan), was completed. Please note
that your bank will clear and process each bank deposit and will include it with
your regular statements. However, acceptance of this authorization in
conditional upon approval of your authorization by your bank, which will allow
PFPC Global Fund Services, the transfer agent of The Munder Funds, to act as
your agent with regard to the Automatic Withdrawal Plan (AWP). The AWP may be
modified or terminated at any time, upon 30-days written notice.

[ ] Check if Section 8 (Telephone Redemption), was completed. I(We) authorize
The Munder Funds to send by Fed wire redemption proceeds to the account
indicated above.

For the purposes of verifying my account number, I have enclosed a blank check
or deposit slip marked "VOID" and have signed the authorization below.
_______________________________________________________________________________
Signature of Depositor  Date    Signature of Joint Depositor (if any)   Date

                 Please Staple Void Check or Deposit Slip Here


                      [SAMPLE OF DEPOSIT SLIP GOES HERE]
<PAGE>

        10.  DOLLAR COST AVERAGING PLAN

[__] YES, I(We) authorize The Munder Funds to exchange from my ____________
(Fund/Account) on a [__] Monthly or [__] Quarterly basis (please choose either
the 5th or the 20th of the month):

$_____________ ($50 minimum) into _________________________________ (Fund Name)

$_____________ ($50 minimum) into _________________________________ (Fund Name)

        11.  CHECKWRITING PRIVILEGES

If you are opening an account for any of The Munder Income and/or Money Market
Funds (Class A Shares only), you are entitled to the checkwriting option.
Redemption checks may be written for amounts of $500 or more. To obtain checks,
please complete the signature card below. All persons named in the Account
Registration in Section 1 must sign the signature card. For Corporate, Trust or
Partnership accounts, only authorized signers must sign. By signing this
signature card, you agree to be subject to the customary rules and regulations
governing checking accounts, as well as instructions and rules of the Fund now
in effect, and as amended from time to time, that pertain to the use of
redemption checks.

Please fill out the following Signature Card to be eligible for Checkwriting and
indicate the Fund(s) for which you are requesting th is service:

_______________________________________________________________________________
Fund(s)

_______________________________________________________________________________
Fund(s)

Authorized Signatures (exactly as it appears in Part 1 of the Application):

_______________________________________________________________________________
Print Name      Signature

_______________________________________________________________________________
Print Name      Signature

_______________________________________________________________________________
Print Name      Signature

Check here if more than one signature is required per check:   [__] 2   [__] 3
Other:______________

        12.  REDUCED SALES CHARGE

[__]  Rights Of Accumulation:  Investors may qualify for reduced sales charges
by aggregating the total purchases of all Munder Class A S hares, excluding
Money Market Funds, to determine the applicable sales charge for current
purchases. To determine the aggregated amou nt of all non-money market funds,
you will need to total the current purchases as well as shares that are already
beneficially owned by the investor for which a sales charge has already been
paid. Please see the prospectus for additional information regarding Rights of
Accumulation.

I apply for the Rights of Accumulation reduced sales charges based on the
following accounts in The Munder Funds.

_______________________________________________________________________________
Name of Fund    Account Number

_______________________________________________________________________________
Name of Fund    Account Number

_______________________________________________________________________________
Name of Fund    Account Number

[__]  Letters Of Intent:  You may qualify for reduced sales charges if you plan
to make additional investments in The Munder Funds within a 13 month period. By
indicating a level of anticipated investment and by signing this application,
you agree to the terms of the L etter of Intent as set forth in the Prospectus,
and as follows: "Although I am not obligated to do so, I intend to invest over
a 13 month period an aggregate amount of at least" (check one):

[__]  $25,000 [__]  $50,000 [__]  $100,000 [__]  $250,000  [__]  $500,000
[__]  $1,000,000
<PAGE>

13.  AUTHORIZATIONS, CERTIFICATIONS AND SIGNATURES

By signing the application, I(we) hereby certify under the penalty of perjury
that the information on this application is true, complete and correct and that:

I(We) understand that this order is subject to acceptance by The Munder Funds.

I(We) agree that The Munder Funds, Funds Distributor, Inc., PFPC Global Fund
Services, Munder Capital Management or any of its affiliates, officers,
directors or employees will not be liable for any loss, expense or cost for
acting upon instructions or inquiries reasonably believed to be genuine. Shares
of the Funds are not insured or guaranteed by the Federal Deposit Insurance
Corporation, the Federal Reserve Board, or any other agency. An investment in
the Funds involves investment risks, including the possible loss of principal.

I(We) represent that I am (we are) of legal age and capacity and have read
the Prospectus(es) for The Munder Funds selected, and agree to its (their)
terms. PFPC Global Fund Services is hereby appointed agent to receive dividends
and distributions for automatic reinvestment unless otherwise directed in
Section 5.

I(We) understand and acknowledge that a sales charge may be levied against the
dollars that I(We) invest in The Munder Funds. (See the Prospectus(es) for
reduced sales charge information.)


_______________________________________________________________________________
Taxpayer Identification Number      Name of Taxpayer Whose Number Appears Above

Taxpayer Identification:

I (the Investor) certify under penalties of perjury that:

(1)  The Social Security Number or taxpayer identification number shown above is
     correct and may be used for any custodial or trust account opened for me
     by The Munder Funds, and

(2)  I (the Investor) am not subject to backup withholding because:

     (a)  I am exempt from Backup Withholding

     (b)  I have not been notified by the Internal Revenue Service ("IRS") that
          I am, as a result of failure to report all interest or dividends, or

     (c)  the IRS has notified me that I am no longer subject to backup
          withholding.

The certification in this paragraph is required from all non-exempt persons to
prevent backup withholding of 31% of all taxable distributions and gross
redemption proceeds under the Federal income tax law.

[_]  Check here if you are subject to backup withholding or have not received a
     notice from the IRS advising you that backup withholding has been
     terminated.

_______________________________________________________________________________
Authorization:

_______________________________________________________________________________
Signature of Owner                 Date               Name

_______________________________________________________________________________
Signature of Owner                 Date               Name

_______________________________________________________________________________

  Shares of The Munder Funds are not deposits or obligations of, or guaranteed
  or endorsed by any bank, and are not federally insured by the Federal Deposit
  Insurance Corporation, the Federal Reserve Board, or any other agency. All
  mutual fund shares involve certain investment risks, including the possible
  loss of principal.
_______________________________________________________________________________

Distributor: Funds Distributor, Inc.                                    APPABC00

<PAGE>

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<PAGE>

                         [THE MUNDER FUNDS LOGO HERE]

                    This page was intentionally left blank
<PAGE>


[LOGO]
  THE
MUNDER
  FUNDS

Investments
  for all seasons

                                                                  CLASS Y SHARES


                                                                      Prospectus
                                                                   June 29, 2000
                                                            MUNDER FUND OF FUNDS
                                     (formerly Munder All-Season Agressive Fund)

                                    As with all mutual funds, the Securities and
                                         Exchange Commission has not approved or
                                disapproved these securities nor passed upon the
                                  accuracy or adequacy of this prospectus. It is
                                          a criminal offense to state otherwise.

<PAGE>

Table Of Contents

<TABLE>
 <C> <S>
 2   Risk/Return Summary
 2   Goal
 2   Principal Investment Strategies
 3   Who May Want To Invest
 4   Performance
 5   Fees And Expenses

 6   More About The Fund
 6   Glossary
 7   Asset Allocation Chart
 8   Description Of The Underlying Funds
 10  Principal Investment Strategies And Risks
 11  Other Investment Strategies And Risks Of The Fund And Underlying Funds
 14  Disclaimers

 15  Your Investment
 15  How To Reach The Fund
 15  Purchasing Shares
 16  Exchanging Shares
 16  Redeeming Shares
 16  Additional Policies For Purchases, Exchanges And Redemptions
 17  Shareholder Privileges

 18  Pricing Of Fund Shares

 18  Distributions

 19  Federal Tax Considerations
 19  Taxes On Distributions
 19  Taxes On Sales Or Exchanges
 19  Other Considerations

 20  Management
 20  Investment Advisor
 20  Portfolio Managers

 21  Financial Highlights

</TABLE>

Back Cover For Additional Information
<PAGE>

Risk/Return Summary
--------------------------------------------------------------------------------

This Risk/Return Summary briefly describes the goals and principal investment
strategies of the Munder Fund of Funds (formerly Munder All- Season Aggressive
Fund) and the principal risks of investing in the Fund. For further information
on these and the Funds' other investment strategies and risks, please read the
section entitled "More About the Fund." Certain terms used in this prospectus
are defined in the Glossary.

 Fund of Funds

 The Fund is a fund of funds, which
 means that it invests almost all
 of its assets in other mutual
 funds, rather than in individual
 securities. The Fund invests its
 assets in a variety of other
 Munder Funds, referred to as
 "underlying funds."

 The risks of investing in the Fund
 are dependent on which underlying
 funds the Fund invests in, and to
 what extent. In addition, the
 investment performance of the Fund
 is directly related to the
 performance of the underlying
 funds in which it invests.


 Investment Approach of the
 Underlying Funds

 . The underlying equity funds
   represented in the Fund vary
   from growth to value styles of
   investing, from larger to
   smaller company stocks and from
   domestic to international
   equities.



Goal

The Fund's goal is to provide long-term capital appreciation.

Principal Investment Strategies

As a fund of funds, the Fund pursues its goal by investing a majority of its
assets in underlying funds that invest primarily in equity securities.

The Fund may also invest a portion of its assets in underlying funds that
invest in money market instruments.

The advisor may periodically adjust the Fund's asset allocation among
underlying funds in response to changing economic and market conditions. The
typical allocation is expected to be: 95% Equity Funds and 5% Money Market
Funds.

The Fund's indirect stock holdings will be a combination of large-cap, mid-cap
and small-cap U.S. stocks as well as foreign stocks.

In the "More About the Fund" section, you will find a description of the
underlying funds and a chart showing the percentage of its assets that the Fund
may invest in each underlying fund.

Principal Risks

All investments have some degree of risk which will affect the value of a
portfolio's investment, its investment performance and the price of its shares.
As a result, you may lose money if you invest in the Fund.

An investment in the Fund is not a bank deposit and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other
governmental agency.

                                       2
<PAGE>

Among the principal risks of investing in the Fund are:

 . Stock Market Risk. The value of the securities in which the Fund invests may
  decline in response to developments affecting particular companies and/or
  general economic conditions. Price changes may be temporary or last for
  extended periods. For example, stock prices have historically risen and
  fallen in periodic cycles. In addition, the value of the Fund's investments
  may decline if the particular companies the Fund invests in do not perform
  well.

 . Foreign Securities Risk. Investments by an underlying fund in foreign
  securities may experience greater and more rapid changes in value than U.S.
  securities. Foreign securities are generally more volatile and less liquid
  than U.S. securities, in part because of greater political and economic risks
  and because there is less public information available about foreign
  companies. Issuers of foreign securities are generally not subject to the
  same degree of regulation as are U.S. issuers. The reporting, accounting and
  auditing standards of foreign countries may differ, in some cases
  significantly, from U.S. standards.

 . Currency Risk. A decline in the value of foreign currencies relative to the
  U.S. dollar will reduce the value of an underlying fund's portfolio
  securities denominated in those currencies.

 . Smaller Company Stock Risk. The stocks of small companies may have more risks
  than those of larger companies. Small companies often have narrower markets
  and more limited managerial and financial resources than larger, more
  established companies. As a result, they may be more sensitive to changing
  economic conditions, which could increase the volatility of an underlying
  fund's portfolio. In addition, small company stocks typically are traded in
  lower volume making them more difficult to sell.

 . Sector Risk. Certain underlying funds may concentrate its investments in a
  particular industry sector. Adverse economic, business or political
  developments affecting that industry sector could have a major effect on the
  value of the underlying fund's investments.

Who May Want to Invest

The Fund may be appropriate for investors who:

 . Seek long-term growth of capital.

 . Can tolerate short-term fluctuations in the financial markets.

                                       3
<PAGE>

Performance

The bar chart and table below give some indication of the risk of an investment
in the Fund. The bar chart shows the Fund's performance in each calendar year
since inception. The table shows how the Fund's average annual total returns
for different calendar periods over the life of the Fund compare to those of a
broad based securities market index.

When you consider this information, please remember a Fund's performance in
past years is not necessarily an indication of how a Fund will perform in the
future.

<TABLE>
<CAPTION>
                         Average Annual Total Return
                         (for the periods ended December 31, 1999)
                                         ------------------------------------------
                                                                           Since
                                                                         Inception
                                                     1 Year              (4/3/97)
                                         ------------------------------------------
                         <S>                         <C>                 <C>
                         Class Y                     22.61%                18.18%
                         Wilshire 5000 Index*        23.56%                28.49%**
</TABLE>
                                         --------
                                         *The Wilshire 5000 Equity Index
                                            measures the performance of all
                                            U.S. headquartered equity
                                            securities with readily available
                                            price data. Our 7,000
                                            capitalization weighted security
                                            are used to adjust the index.
                                         **Index return from 3/31/97.

[BAR CHART]
Total Return
(per calendar year)

1998            3.84%
1999           22.61%

Year-to-date through March 31, 2000: 11.83%

<TABLE>
<S>                                    <C>                                                   <C>
Best Quarter:                          Q4 1999                                                20.97%
Worst Quarter:                         Q3 1998                                               (16.15%)
</TABLE>


                                       4
<PAGE>

Fees And Expenses

The tables below describe the fees and expenses that you may pay if you buy and
hold Class Y shares of the Fund. Please note that the following information
does not include fees that institutions may charge for services they provide to
you.

<TABLE>
<CAPTION>
Shareholder Fees (fees paid directly from your investment)
----------------------------------------------------------
<S>                                                                         <C>
Maximum Sales Charge (Load) Imposed on Purchases........................... None
Sales Charge (Load) Imposed on Reinvested Dividends........................ None
Maximum Deferred Sales Charge (Load)....................................... None
Redemption Fees............................................................ None
Exchange Fees.............................................................. None
</TABLE>

Annual Fund Operating Expenses (expenses that are paid from Fund assets)
as a % of net assets

<TABLE>
<S>                                                                    <C>
Management Fees....................................................... None
Other Expenses........................................................ 0.25%
                                                                       ----
Total Annual Fund Operating Expenses.................................. 0.25%
                                                                       ====
</TABLE>
--------

  In addition to the expenses shown above, shareholders of the Fund will
  indirectly bear their pro rata shares of the annual operating expenses of
  the underlying funds. As a result, the investment returns of the Fund will
  be net of the expenses of the Underlying Funds. Since the Fund invests in
  other Munder Funds, as a shareholder you will pay a higher expense ratio
  than if you had purchased shares of an underlying fund directly. The
  underlying funds' total annual fund operating expense ratios for the fiscal
  year ended June 30, 1999 ranged from .32% to 2.45%.

Example

The example is intended to help you compare the cost of investing in the Fund
to the cost of investing in other mutual funds. The example assumes that you
invest $10,000 in the Fund for the time periods indicated. The example also
assumes that your investment has a 5% return each year, that the Fund's
operating expenses remain the same and that all dividends and distributions are
reinvested. Although your actual costs may be higher or lower, based on these
assumptions your costs would be:

<TABLE>
<CAPTION>
1 Year                 3 Years                               5 Years                               10 Years
------                 -------                               -------                               --------
<S>                    <C>                                   <C>                                   <C>
$26                      $81                                  $141                                   $320
</TABLE>

                                       5
<PAGE>

More About The Fund
--------------------------------------------------------------------------------

This section describes the underlying funds in which the Fund may invest. It
also discusses the risks of investing in the Fund, which are dependent upon
which underlying funds the Fund invests in, and to what extent. Further,
included in this section is a chart that shows the maximum percentage of its
assets that the Fund may invest in each underlying fund. Please note that the
underlying funds may also invest in securities and are subject to restrictions
and additional risks which are described in the Statement of Additional
Information.

The Glossary below explains certain terms used throughout this prospectus.

Glossary

Types Of Securities

Equity securities include common stocks, preferred stocks, securities
convertible into common stocks, and rights and warrants to subscribe for the
purchase of common stocks. Equity securities may be listed on a stock exchange
or NASDAQ National Market System or unlisted. Warrants are rights to purchase
securities at a specified time at a specified price.

Convertible Securities A convertible security is a bond or preferred stock that
may be converted (exchanged) into the common stock of the issuing company
within a specified time period for a specified number of shares. Convertible
securities offer the underlying funds a way to participate in the capital
appreciation of the common stock into which the securities are convertible,
while earning higher current income than is available from the common stock.

Money market instruments are high-quality, short-term instruments including
commercial paper, bankers' acceptances and negotiable certificates of deposit
of banks or savings and loan associations, short-term corporate obligations and
short-term U.S. Government securities.

Rating Agencies and Indices

S&P is Standard & Poor's Rating Services.

S&P 500 is S&P's 500 Composite Stock Price Index, a widely recognized unmanaged
index of U.S. stock market activity.

Other

1940 Act is the Investment Company Act of 1940, as amended.

Internal Revenue Code is the Internal Revenue Code of 1986, as amended.

NAV is the net asset value per share of the Fund. NAV is the value of a single
share of the Fund. The Fund calculates NAV separately for each class. NAV is
calculated by (1) taking the current value of the Fund's total assets allocated
to a particular class of shares, (2) subtracting the liabilities and expenses
charged to that class (3) dividing that amount by the total number of shares of
that class outstanding.

                                       6
<PAGE>

Asset Allocation Chart

The following chart shows the Fund's maximum investment (expressed as a
percentage of each Fund's assets) that the Fund may make in the underlying
funds.

<TABLE>
<S>                                                                          <C>
Equity Funds
Equity Income Fund.......................................................... 20%
Focus Growth Fund........................................................... 30%
Future Technology Fund...................................................... 15%
Growth Opportunities Fund................................................... 20%
Institutional S&P 500 Index Equity Fund..................................... 40%
International Equity Fund................................................... 15%
International NetNet Fund................................................... 10%
Micro-Cap Equity Fund....................................................... 10%
Multi-Season Growth Fund.................................................... 30%
NetNet Fund................................................................. 10%
Real Estate Equity Investment Fund.......................................... 25%
Small-Cap Value Fund........................................................ 35%
Small Company Growth Fund................................................... 35%
Framlington Emerging Markets Fund........................................... 15%
Framlington Global Financial Services Fund.................................. 15%
Framlington Healthcare Fund................................................. 10%
Framlington International Growth Fund....................................... 15%

Other Munder Equity Funds................................................... 20%

Money Market Funds
Cash Investment Fund........................................................ 15%
Institutional Money Market Fund............................................. 10%
U.S. Treasury Money Market Fund............................................. 10%
</TABLE>

                                       7
<PAGE>

Description of Underlying Funds

Equity Funds

Equity Income Fund
The Fund's goal is to provide capital appreciation and current income. The Fund
pursues its goal by investing primarily in dividend-paying equity securities
and fixed income securities which are convertible into or exchangeable for
common stock. The advisor generally selects large, well-known companies that it
believes have favorable prospects for dividend growth and capital appreciation.
The Fund will seek to produce a current yield greater than the S&P 500.

Focus Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities which the
advisor believes are undervalued compared to stocks of other companies in the
same industry. The Fund generally invests in companies with market
capitalizations of at least $1 billion. The Fund diversifies its assets by
industry in approximately the same weightings as those of the Russell 1000
Growth Index.

Future Technology Fund
The Fund's goal is to provide capital appreciation. The Fund pursues its goal
by investing at least 65% of its assets in common stocks of technology-related
companies. Technology-related companies are companies that develop,
manufacture, or distribute technology, communications and Internet-related
products and services. The Fund may also invest in the stocks of companies that
should benefit commercially from technological advances. The Fund invests in
both established companies and in new or unseasoned companies, including
companies making initial public offerings.

Growth Opportunities Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in the equity securities of
companies with market capitalizations between $500 million and $10 billion. Its
style, which focuses on both growth prospects and valuation, is known as GARP
(Growth at a Reasonable Price) and seeks to produce attractive returns during
various market environments.

Institutional S&P 500 Index Equity Fund
The Fund's goal is to provide performance and income that is comparable to the
S&P 500. The S&P 500 is an index of 500 stocks that emphasizes large
capitalization companies. The Fund pursues its goal by normally holding a
substantial amount of its assets in securities of at least 400 of the stocks in
the S&P 500. The Fund is managed through the use of a "quantitative" or
"indexing" investment approach and tries to mirror the composition and
performance of the S&P 500 through statistical procedures. The Fund will try to
achieve a correlation between the performance of its portfolio and that of the
S&P 500 of at least .95. A correlation of 1.0 would mean that the changes in
the Fund's price mirror exactly the changes in the S&P 500.

International Equity Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing primarily in foreign securities, including American
Depositary Receipts. The Fund mostly invests in mature markets, but may also
invest in emerging markets. The Fund emphasizes companies with a market
capitalization of at least $250 million.

International NetNet Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by using a growth strategy to invest primarily in foreign companies
engaged in the Internet or Intranet related business. Under normal market
conditions, the Fund will invest at least 65% of its total assets in equity
securities of foreign companies that are engaged in the research, design,
development, manufacturing or engaged to a significant extent in the business
of distributing products, processes or services for use with the Internet or
Intranet related businesses.

Micro-Cap Equity Fund
The Fund's goal is to provide capital appreciation. The Fund pursues its goal
by investing at least 65% of its assets in equity securities of micro-
capitalization companies having market capitalizations within the range of the
companies in the Wilshire Micro-Cap Index. There is no limit on the length of
operating history for the companies in which the Fund may invest. The Fund may
invest without limit in initial public offerings of small capitalization
companies. In addition, the Fund may invest up to 35% of its assets in equity
securities of medium and larger capitalization companies, including initial
public offerings of such companies.

                                       8
<PAGE>

Multi-Season Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities. The Fund
generally invests in equity securities of companies with market capitalizations
over $1 billion. Its style, which focuses on both growth prospects and
valuation, is known as GARP (Growth at a Reasonable Price) and seeks to produce
attractive returns during various market environments.

NetNet Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing primarily in companies engaged in the Intranet and
Internet related business. Under normal market conditions, the Fund will invest
at least 65% of its total assets in equity securities of companies that are
engaged in research, design, development, manufacturing or engaged to a
significant extent in the business of distributing products, processes or
services for use with Internet or Intranet related businesses.

Real Estate Equity Investment Fund
The Fund's goal is to provide both capital appreciation and current income. The
Fund pursues its goal by investing at least 65% of its total assets in equity
securities of U.S. companies which are principally engaged in the real estate
industry.

Small-Cap Value Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of small
capitalization companies having market capitalizations within the range of the
companies in the Russell 2000 Index. The advisor will concentrate on companies
that it believes are undervalued.

Small Company Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing, under normal market conditions, at least 65% of its
assets in equity securities of small capitalization companies with market
capitalizations below $1.5 billion.

Framlington Emerging Markets Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of
companies in emerging market countries, as defined by the World Bank, the
International Finance Corporation, the United Nations or the European Bank for
Reconstruction and Development. It may also invest in foreign securities of
companies located in countries with mature markets.

Framlington Global Financial Services Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of U.S.
and foreign companies which are principally engaged in the financial services
industry and companies providing services primarily within the financial
services industry. The Fund focuses specifically on companies which are likely
to benefit from growth or consolidation in the financial services industry. The
Fund may invest in securities of companies located in countries with mature
markets and in those with emerging markets.

Framlington Healthcare Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing in equity securities of companies providing healthcare
and medical services and products worldwide. Currently, most of these companies
are located in the United States. The Fund's investments may include foreign
securities of companies located in countries with mature markets and in those
with emerging markets.

Framlington International Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of
issuers located in at least three foreign countries. The Fund may invest in
companies located in countries with mature markets and in those with emerging
markets.

Money Market Funds

Cash Investment Fund
The Fund's primary goal is to provide as high a level of current interest
income as is consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing in a broad range of U.S. dollar-
denominated money market instruments. The Fund invests solely in U.S. dollar-
denominated debt securities with remaining maturities of 13 months or less and
maintains an average dollar-weighted portfolio maturity of 90 days or less.

                                       9
<PAGE>

Institutional Money Market Fund
The Fund's primary goal is to provide as high a level of current interest
income as is consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing in a broad range of U.S. dollar-
denominated money market instruments. The Fund invests solely in U.S. dollar-
denominated debt securities with remaining maturities of 13 months or less and
maintains an average dollar-weighted portfolio maturity of 90 days or less.

U.S. Treasury Money Market Fund
The Fund's goal is to provide as high a level of current interest income as is
consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing its assets solely in short-term bills
and notes, issued by the U.S. Treasury (including "stripped" securities) and in
repurchase agreements relating to such obligations. The Fund invests solely in
U.S. dollar-denominated debt securities with remaining maturities of 13 months
or less and maintains an average dollar-weighted portfolio maturity of 90 days
or less.

Principal Investment Strategies and Risks

Foreign Investment Risk. Certain underlying funds may invest in foreign
securities. Foreign securities include investments in non-U.S. dollar-
denominated securities traded outside of the United States and dollar-
denominated securities of foreign issuers traded in the United States. Foreign
securities also include American Depository Receipts ("ADRs"), European
Depository Receipts ("EDRs") and Global Depository Receipts ("GDRs"). ADRs are
U.S. dollar-denominated receipts representing shares of foreign-based
corporations. ADRs are issued by U.S. banks or trust companies, and entitle the
holder to all dividends and capital gains that are paid out on the underlying
foreign shares. EDRs and GDRs are receipts issued by non-U.S. financial
institutions that often trade on foreign exchanges. They represent ownership in
an underlying foreign or U.S. security and are generally denominated in a
foreign currency.

  Special Risks. Foreign securities involve special risks and costs.
  Investment in the securities of foreign governments involves the risk that
  foreign governments may default on their obligations or may otherwise not
  respect the integrity of their debt.

  Investment in foreign securities may involve higher costs than investment
  in U.S. securities, including higher transaction and custody costs as well
  as the imposition of taxes by foreign governments. Foreign investments may
  also involve risks associated with the level of currency exchange rates,
  less complete financial information about the issuers, less market
  liquidity, more market volatility and political instability. Future
  political and economic developments, the possible imposition of withholding
  taxes on dividend income, the possible seizure or nationalization of
  foreign holdings, the possible establishment of exchange controls or
  freezes on the convertibility of currency, or the adoption of other
  governmental restrictions might adversely affect an investment in foreign
  securities. Additionally, foreign issuers may be subject to less stringent
  regulation, and to different accounting, auditing and recordkeeping
  requirements.

  Currency exchange rates may fluctuate significantly over short periods of
  time causing an underlying fund's net asset value to fluctuate as well. A
  decline in the value of a foreign currency relative to the U.S. dollar will
  reduce the value of a foreign currency-denominated security. To the extent
  that an underlying fund is invested in foreign securities while also
  maintaining currency positions, it may be exposed to greater combined risk.
  The underlying funds' respective net currency positions may expose them to
  risks independent of their securities positions.

  Additional risks are involved when investing in countries with emerging
  economies or securities markets. In general, the securities markets of
  these countries are less liquid, are subject to greater price volatility,
  have smaller market capitalizations and may have problems with securities
  registration and custody. In addition, because the securities settlement
  procedures are less developed in these countries, an underlying fund may be
  required to deliver securities before receiving payment and may also be
  unable to complete transactions during market

                                       10
<PAGE>

  disruptions. As a result of these and other risks, investments in these
  countries generally present a greater risk of loss to the Fund.

  A further risk of investing in foreign securities is the risk that an
  underlying fund may be adversely affected by the conversion of certain
  European currencies into the Euro. This conversion, which is under way, is
  scheduled to be completed in the year 2002. However, problems with the
  conversion process and delays could increase volatility in world capital
  markets and affect European capital markets in particular.

Investments in Financial Services Companies by Framlington Global Financial
Services Fund. Financial services companies are subject to extensive
governmental regulation which may limit both the financial commitments they can
make, and the interest rates and fees they can charge. Insurance companies may
be subject to severe price competition.

Investments in the Healthcare Industry by Framlington Healthcare Fund. The
Framlington Healthcare Fund will invest most of its assets in the healthcare
industry, which is particularly affected by rapidly changing technology and
extensive government regulation, including cost containment measures.

Investments in the Real Estate Industry by Real Estate Equity Investment
Fund. The Real Estate Equity Investment Fund will invest primarily in the real
estate industry and may invest more than 25% of its assets in any one sector of
the real estate industry. As a result, the Real Estate Equity Investment Fund
will be particularly vulnerable to declines in real estate prices and new
construction rates.

Investments by the NetNet Fund. The NetNet Fund will invest primarily in
companies engaged in Internet and Intranet related activities. The value of
such companies is particularly vulnerable to rapidly changing technology,
extensive government regulation and relatively high risks of obsolescence
caused by scientific and technological advances. The value of the Fund's shares
may fluctuate more than shares of a fund investing in a broader range of
industries.

Investments in the Technology Industry by Future Technology Fund. The Future
Technology Fund will invest most of its assets in the technology industry,
which is particularly affected by rapidly changing technology product cycles,
government regulation and competition. Technology stocks, especially those of
smaller, less-seasoned companies, tend to be more volatile than the overall
market.

Short-Term Trading. The underlying funds may engage in short-term trading,
including initial public offerings.

  Special Risks. A high rate of portfolio turnover (100% or more) could
  produce higher trading costs and taxable distributions, which could detract
  from a Fund's performance.

Defensive Investing. The Fund and each underlying fund (except the
Institutional S&P 500 Index Equity Fund) may invest all or any portion of its
assets in short-term obligations as a temporary defensive measure in response
to adverse market or economic conditions.

  Special Risks. If the Fund or one or more underlying funds adopts a
  defensive strategy, the Fund may not achieve its investment objective.

Other Investment Strategies and Risks Of The Fund And Underlying Funds

Borrowing and Reverse Repurchase Agreements. The Fund and underlying funds can
borrow money from banks and enter into reverse repurchase agreements with banks
and other financial institutions. Reverse repurchase agreements involve the
sale of securities held by a Fund (or underlying fund) subject to the Fund's
(or underlying fund) agreement to repurchase them at a mutually agreed upon
date and price (including interest).

  Investment Strategy. The Fund (or underlying fund) may borrow money in an
  amount up to 5% of its assets for temporary emergency purposes and in an
  amount up to 33 1/3% of its assets to meet redemptions. This is a
  fundamental policy which can be changed only by shareholders.

                                       11
<PAGE>

  Special Risks.  Borrowings and reverse repurchase agreements by the Fund
  (or underlying fund) may involve leveraging. If the securities held by the
  Fund (or underlying fund) decline in value while these transactions are
  outstanding, the Fund's net asset value will decline in value by
  proportionately more than the decline in value of the securities. In
  addition, reverse repurchase agreements involve the risks that the interest
  income earned by the Fund (or underlying fund) (from the investment of the
  proceeds) will be less than the interest expense of the transaction, that
  the market value of the securities sold by the Fund (or underlying fund)
  will decline below the price the Fund (or underlying fund) is obligated to
  pay to repurchase the securities, and that the securities may not be
  returned to the Fund (or underlying fund).

Derivative Risk.  Some underlying funds may purchase certain "derivative"
instruments. Derivatives are financial contracts whose value is based on any
underlying security, a currency exchange rate, an interest rate or a market
index. Many types of instruments representing a wide range of potential risks
and rewards are derivatives, including futures contracts options on futures
contracts, options, forward currency contracts and structured debt obligations
(including collateralized mortgage obligations and other types of asset-backed
securities, "stripped" securities and various floating rate instruments).

  Investment Strategy.  Derivatives can be used for hedging (attempting to
  reduce risk by offsetting one investment position with another) or
  speculation (taking a position in the hope of increasing return). The
  underlying funds may, but are not required to, use derivatives for hedging
  purposes or for the purpose of remaining fully invested or maintaining
  liquidity. The underlying funds will not use derivatives for speculative
  purposes.

  Special Risks.  The use of derivative instruments exposes a Fund to
  additional risks and transaction costs. Risks of derivative instruments
  include: (1) the risk that interest rates, securities prices and currency
  markets will not move in the direction that a portfolio manager
  anticipates; (2) imperfect correlation between the price of derivative
  instruments and movements in the prices of the securities, interest rates
  or currencies being hedged; (3) the fact that skills needed to use these
  strategies are different than those needed to select portfolio securities;
  (4) the possible absence of a liquid secondary market for any particular
  instrument and possible exchange imposed price fluctuation limits, either
  of which may make it difficult or impossible to close out a position when
  desired; (5) the risk that adverse price movement in an instrument can
  result in a loss substantially greater that the Funds initial nvestment in
  that instrument (in some leases, the potential loss is unlimited);
  (6) particularly in the case of privately negotiated instruments, the risk
  that the counterparty will not perform its obligations, which could leave
  the Fund worse off that if it had not entered into the position: and (7)
  the inability to close out certain hedged positions to avoid adverse tax
  consequences.

Forward Currency Exchange Contracts. A forward currency exchange contract is an
obligation to exchange one currency for another on a future date at a specified
exchange rate.

  Investment Strategy. Forward currency exchange contracts may be used for
  hedging purposes and to help reduce the risks and volatility caused by
  changes in foreign currency exchange rates. Foreign currency exchange
  contracts will be used at the discretion of the advisor or sub-advisor, and
  no underlying fund is required to hedge its foreign currency positions.

  Special Risks. Forward currency contracts are privately negotiated
  transactions, and can have substantial price volatility. When used for
  hedging purposes, they tend to limit any potential gain that may be
  realized if the value of an underlying fund's foreign holdings increases
  because of currency fluctuations.

Futures Contracts and Related Options. A futures contract is a type of
derivative instrument that obligates the holder to buy or sell an asset in the
future at an agreed upon price. When an underlying fund purchases an option on
a futures contract, it has the right to assume a position as a purchaser or

                                       12
<PAGE>

seller of a futures contract at a specified exercise price during the option
period. When an underlying fund sells an option on a futures contract, it
becomes obligated to purchase or sell a futures contract if the option is
exercised.

  Investment Strategy. The underlying funds may invest in futures contracts
  and options on futures contracts on domestic or foreign exchanges or boards
  of trade. These instruments may be used for hedging purposes, to maintain
  liquidity to meet potential shareholder redemptions, to invest cash
  balances or dividends, or to minimize trading costs.

  An underlying fund will not purchase or sell a futures contract unless,
  after the transaction, the sum of the aggregate amount of margin deposits
  on its existing futures positions and the amount of premiums paid for
  related options used for non-hedging purposes is 5% or less of the
  underlying fund's total assets.

  Special Risks. Futures contracts and related options present the following
  risks: imperfect correlation between the change in market value of an
  underlying fund's securities and the price of futures contracts and
  options; the possible inability to close a futures contract when desired;
  losses due to unanticipated market movements, which are potentially
  unlimited; and the possible inability of the advisor or sub-advisor to
  correctly predict the direction of securities prices, interest rates,
  currency exchange rates and other economic factors.

Illiquid Securities. Illiquid securities include private placements or other
securities that are subject to legal or contractual restrictions on resale or
for which there is no readily available market.

  Investment Strategy. Each underlying fund may invest up to 15% of its net
  assets in securities that are illiquid.

  Special Risks. To the extent that an underlying fund invests in illiquid
  securities, the underlying fund risks not being able to sell the securities
  at the time and the price that it would like. The underlying fund may have
  to lower the price, sell substitute securities or forego an investment
  opportunity, each of which may cause a loss to the underlying fund.

Options. An option is a type of derivative instrument that gives the holder the
right (but not the obligation) to buy (a "call") or sell (a "put") an asset in
the future at an agreed upon price prior to the expiration date of the option.

  Investment Strategy. The underlying funds may write (sell) covered call
  options, buy put options, buy call options and write secured put options
  for hedging purposes. Options may relate to particular securities, foreign
  or domestic securities indices, financial instruments or foreign
  currencies.

  Special Risks. The value of options can be highly volatile, and their use
  can result in loss if the advisor or sub-advisor is incorrect in its
  expectation of price fluctuations. The successful use of options for
  hedging purposes also depends in part on the ability of the advisor or sub-
  advisor to predict future price fluctuations and the degree of correlation
  between the options and securities markets.

Securities Lending.  In order to generate additional income, each underlying
fund may lend securities on a short-term basis to qualified institutions. By
reinvesting any cash collateral it receives in these transactions, the
underlying fund could realize additional income gains or losses.

  Investment Strategy.  Securities lending may represent no more than 25% of
  the value of an underlying fund's total assets (including the loan
  collateral).

  Special Risks. The main risk when lending securities is that if the
  borrower fails to return the securities or the invested collateral has
  declined in value, the underlying fund could lose money.

Temporary Investments. Short-term obligations refer to U.S. Government
securities, high-quality money market instruments and repurchase agreements
with maturities of 13 months or less. Generally, these obligations are
purchased to provide stability and liquidity to the Fund or underlying fund.

  Investment Strategy. The Fund or underlying fund may invest a portion of
  its assets in short-term obligations pending investment or to meet
  anticipated redemption requests.

                                       13
<PAGE>

  Special Risks. The Fund or underlying fund may not achieve its investment
  objective when its asset are invested in short-term obligations.

Variable and Floating Rate Instruments. Variable and floating rate instruments
have interest rates that are periodically adjusted either at set intervals or
that float at a margin above a generally recognized index rate. These
instruments include variable amount master demand notes.

  Special Risks. Variable and floating rate instruments are subject to the
  same risks as fixed income investments, particularly interest rate and
  credit risk. Because there is no active secondary market for certain
  variable and floating rate instruments, they may be more difficult to sell
  if the issuer defaults on its payment obligations or during periods when an
  underlying fund is not entitled to exercise its demand rights. As a result,
  the underlying fund could suffer a loss with respect to these instruments.

Disclaimers
Disclaimers. The Institutional S&P 500 Index Equity Fund is not sponsored,
endorsed, sold or promoted by S&P, nor does S&P guarantee the accuracy and/or
completeness of the S&P 500(R) Index or any data included therein. S&P makes no
warranty, express or implied, as to the results to be obtained by the Fund,
owners of the Fund, any person or any entity from the use of the S&P 500(R)
Index or any data included therein. S&P makes no express or implied warranties
and expressly disclaims all such warranties of merchantability or fitness for a
particular purpose for use with respect to the S&P(R) Index or any data
included therein.

                                       14
<PAGE>

Your Investment
--------------------------------------------------------------------------------

This section describes how to do business with the Fund.

How To Reach The Fund

By telephone: 1-800-438-5789
           Call for account information.

By mail:The Munder Funds
c/o PFPC Global Fund Services
P.O. Box 60428
King of Prussia, PA 19406-0428

Purchasing Shares

Who May Purchase Shares
The following persons may purchase shares of the Fund:

  . fiduciary and discretionary accounts of institutions;

  . institutional investors (including: banks; savings institutions; credit
    unions and other financial institutions; pension, profit sharing and
    employee benefit plans and trusts; insurance companies; investment
    companies; investment advisers, broker-dealers and financial advisors
    acting for their own accounts or for the accounts of their clients);

  . directors, trustees, officers and employees of the Munder Funds, the
    advisor and the Funds' distributor;

  . the advisor's investment advisory clients; and

  . family members of employees of the advisor.

The Fund also issues other classes of shares, which have different sales
charges, expense levels and performance. Call (800) 438-5789 to obtain more
information about the Fund's other classes of shares.

Purchase Price of Shares
Class Y shares of the Fund are sold at the NAV next determined after a purchase
order is received in proper form.

Broker-dealers or financial advisors (other than the Fund's distributor) may
charge you a fee for shares you purchase through them.

Policies for Purchasing Shares

Minimum initial investment
The minimum initial investment by fiduciary and discretionary accounts of
institutions and by institutional investors is $5,000. Other investors are not
subject to any minimum.

There is no minimum for subsequent investments.

Timing of orders
Purchase orders must be received by the Fund's distributor, transfer agent or
authorized dealer before the close of regular trading on the New York Stock
Exchange (normally, 4:00 p.m. Eastern time).

Methods for Purchasing Shares
You can purchase Class Y shares through the Fund's transfer agent or through
the Fund's distributor through arrangements with a broker-dealer, financial
advisor or financial institution.

 . Through a Financial Institution. You may purchase shares through a financial
  institution through procedures established with that institution.
  Confirmations of share purchases will be sent to the institution.

 . By Mail. You may open an account directly through the Fund's transfer agent
  by completing, signing and mailing an account application form and a check or
  other negotiable bank draft (payable to The Munder Funds) to: The Munder
  Funds, c/o PFPC Gobal Fund Services, P.O. Box 60428, King of Prussia,
  Pennsylvania 19406-0428. You can obtain an account application form by
  calling (800) 438-5789. For additional investments, send a letter stating the
  Fund and share class you wish to purchase, your name and your account number
  with a check for $50 or more to the address listed above. We do not accept
  third-party checks.

 . By Wire. You may make additional investments in the Funds by wire. Wire
  instructions must state the Fund name, share class, your registered name and
  your account number. Your bank wire should be sent through the Federal
  Reserve Bank Wire System to:

  Boston Safe Deposit and Trust Company
  Boston, MA
  ABA# 011001234
  DDA# 16-798-3
  Account No.:

                                       15
<PAGE>

 Note that banks may charge fees for transmitting wires.

 . You may purchase shares through the Automatic Investment Plan.

Exchanging Shares

Policies for Exchanging Shares

 . You may exchange your Fund shares for Class Y shares of other Munder Funds
  based on their relative net asset values.

 . You must meet the minimum purchase requirements for the Munder Fund that you
  purchase by exchange.

 . A share exchange may be a taxable event and, accordingly, you may realize a
  taxable gain or loss.

 . Before making an exchange request, read the prospectus of the Munder Fund you
  wish to purchase by exchange. You can obtain a prospectus for any Munder Fund
  by contacting your broker or the Munder Funds at (800) 438-5789.

 . Brokers or financial advisors may charge you a fee for handling exchanges.

 . We may modify or terminate the exchange privilege at any time. You will be
  given notice of any material modifications except where notice is not
  required.

Redeeming Shares

Redemption Price
We will redeem shares at the NAV next determined after we receive the
redemption request in proper form.

Methods for Redeeming Shares

 . You may redeem shares of all Funds through your broker-dealer, financial
  advisor or financial institution.

Policies for Redeeming Shares

 . Shares held by an institution on behalf of its customers must be redeemed in
  accordance with instructions and limitations pertaining to the account at
  that institution.

 . If we receive a redemption order for a Fund before 4:00 p.m. (Eastern time),
  we will normally wire payment to the redeeming institution on the next
  business day.

Additional Policies For Purchases, Exchanges And Redemptions

 . We consider requests to be in "proper form" when all required documents are
   properly completed, signed and received.

 . The Fund reserves the right to reject any purchase order.

 . At any time, the Fund may change any of its purchase, redemption or
   exchange practices, and may suspend the sale of its shares.

 . The Fund may delay sending redemption proceeds for up to seven days, or
   longer if permitted by the Securities and Exchange Commission.

 . To limit the Fund's expenses, we no longer issue share certificates.

 . We will typically send redemption amounts to you within seven business days
   after you redeem shares. We may hold redemption amounts from the sale of
   shares you purchased by check until the purchase check has cleared, which
   may be as long as 15 days.

 . The Fund may temporarily stop redeeming shares if:

 . the New York Stock Exchange is closed;

 . trading on the New York Stock Exchange is restricted;

 . an emergency exists and the Fund cannot sell its assets or accurately
   determine the value of its assets; or

 . the Securities and Exchange Commission orders the Fund to suspend
   redemptions.

 . If accepted by the Fund, investors may purchase shares of that Fund with
   securities which the Fund may hold. The advisor will determine if

                                       16
<PAGE>

  the securities are consistent with the Fund objectives and policies. If
  accepted, the securities will be valued the same way the Fund values
  portfolio securities it already owns. Call the Fund at (800) 438-5789 for
  more information.

 . The Fund reserves the right to make payment for redeemed shares wholly or
   in part by giving the redeeming shareholder portfolio securities. The
   shareholder may pay transaction costs to dispose of these securities.

 . We record all telephone calls for your protection and take measures to
   identify the caller. As long as the Fund's transfer agent takes reasonable
   measures to authenticate telephone requests on an investor's account,
   neither the Fund, the Fund's distributor nor the transfer agent will be
   held responsible for any losses resulting from unauthorized transactions.

 . We may redeem your account if its value falls below $250 as a result of
   redemptions (but not as a result of a decline in net asset value). You will
   be notified in writing and allowed 60 days to increase the value of your
   account to the minimum investment level.

 . If you purchased shares directly through the Fund's transfer agent, the
   transfer agent will send you confirmations of the opening of an account and
   of all subsequent purchases, exchanges or redemptions in the account.
   Confirmations of transactions effected through an institution will be sent
   to the institution.

 . Financial institutions are responsible for transmitting orders and payments
   for their customers on a timely basis.

Shareholder Privileges

Automatic Investment Plan (AIP). Under the AIP you may arrange for periodic
investments in the Fund through automatic deductions from a checking or savings
account. To enroll in the AIP you should complete the AIP application form or
call the Fund at (800) 438-5789. The minimum pre-authorized investment amount
is $50. You may discontinue the AIP at any time. We may discontinue the AIP on
30 days' written notice to you.

                                       17
<PAGE>

Pricing Of Fund Shares
--------------------------------------------------------------------------------

The Fund's NAV is calculated on each day the New York Stock Exchange is open.

The Fund calculates NAV as of the close of regular trading on the New York
Stock Exchange, normally 4:00 p.m. (Eastern time). If the New York Stock
Exchange closes early, the Fund will accelerate calculation of NAV and
transaction deadlines to that time.

The NAV of each underlying fund is generally based on the market value of the
securities held in the underlying fund. If market values are not available, the
fair value of securities is determined in good faith by, or using procedures
approved by, the boards of directors/trustees of the underlying funds.

Trading in foreign securities may be completed at times that vary from the
closing of the New York Stock Exchange. An underlying fund values foreign
securities at the latest closing price on the exchange on which they are traded
immediately prior to the closing of the New York Stock Exchange. Certain
foreign currency exchange rates may also be determined at the latest rate prior
to the closing of the New York Stock Exchange. Foreign securities quoted in
foreign currencies are translated into U.S. dollars at current rates.
Occasionally, events that affect these values and exchange rates may occur
between the times at which they are determined and the closing of the New York
Stock Exchange. If the advisor believes that such events materially affect the
value of portfolio securities, these securities may be valued at their fair
market value as determined in good faith by, or using procedures approved by,
the underlying funds' boards of directors/trustees.

Distributions
--------------------------------------------------------------------------------
As a shareholder, you are entitled to your share of the Fund's net income and
gains on its investments. The Fund passes substantially all of its earnings
along to its shareholders as distributions. When the Fund earns dividends from
stocks and interest from debt securities and distributes these earnings to
shareholders, it is called a dividend distribution. The Fund realizes capital
gains when it sells securities for a higher price than it paid. When these
gains are distributed to shareholders, it is called a capital gain
distribution.

The Fund pays dividends, if any, at least annually.

The Fund distributes its net realized capital gains, if any, at least annually.

It is possible that the Fund may make a distribution in excess of the Fund's
earnings and profits. You will treat such a distribution as a return of capital
which is applied against and reduces your basis in your shares. You will treat
the excess of any such distribution over your basis in your shares as gain from
a sale or exchange of the shares.

The Fund will pay distributions in additional shares of the same class of that
Fund. If you wish to receive distributions in cash, either, indicate this
request on your account application form or notify the Fund at (800) 438-5789.

                                       18
<PAGE>

Federal Tax Considerations
--------------------------------------------------------------------------------
Investments in the Fund may have tax consequences that you should consider.
This section briefly describes some of the more common federal tax
consequences. A more detailed discussion about the tax treatment of
distributions from the Fund and about other potential tax liabilities,
including backup withholding for certain taxpayers and about tax aspects of
dispositions of shares of the Fund, is contained in the Statement of Additional
Information. You should consult your tax adviser about your own particular tax
situation.

Taxes On Distributions

You will generally have to pay federal income tax on all Fund distributions.
Distributions will be taxed in the same manner whether you receive the
distributions in cash or in additional shares of the Fund. Shareholders not
subject to tax on their income generally will not be required to pay any tax on
distributions.

Distributions that are derived from net long-term capital gains generally will
be taxed as long-term capital gains. Dividend distributions and short-term
capital gains generally will be taxed as ordinary income. The tax you pay on a
given capital gains distribution generally depends on how long the Fund held
the portfolio securities it sold. It does not depend on how long you held your
Fund shares.

Distributions are generally taxable to you in the year in which they are paid,
with one exception: distributions declared in October, November or December,
but not paid until January of the following year, are taxed as though they were
paid on December 31 in the year in which they were declared.

Shareholders generally are required to report all Fund distributions on their
federal income tax returns. Each year the Funds will send you information
detailing the amount of ordinary income and capital gains paid to you for the
previous year.

Taxes On Sales Or Exchanges

If you sell shares of the Fund or exchange them for shares of another Munder
Fund, you generally will be subject to tax on any taxable gain. Taxable gain is
computed by subtracting your tax basis in the shares from the redemption
proceeds (in the case of a sale) or the value of the shares received (in the
case of an exchange). Because your tax basis depends on the original purchase
price and on the price at which any dividends may have been reinvested, you
should be sure to keep account statements so that you or your tax preparer will
be able to determine whether a sale or an exchange will result in a taxable
gain.

Other Considerations

If you buy shares of the Fund just before the Fund makes any distribution, you
will pay the full price for the shares then receive back a portion of the money
you just invested in the form of a taxable distribution.

If you have not provided complete, correct taxpayer information by law, the
Fund must withhold a portion of your distributions and redemption proceeds to
pay federal income taxes.

                                       19
<PAGE>

Management
--------------------------------------------------------------------------------

Investment Advisor

Munder Capital Management ("MCM"), 480 Pierce Street, Birmingham, Michigan
48009 is the investment advisor of each Fund and each underlying fund except
Institutional S&P 500 Index Equity Fund and International Equity Fund. The
advisors provide overall investment management for the Funds. As of March 31,
2000, MCM and its affiliates had approximately $62 billion in assets under
management, of which $34 billion were invested in equity securities, $7 billion
were invested in money market or other short-term instruments, $6 billion were
invested in other fixed income securities, $3 billion were invested in balanced
investments and $7 billion in non-discretionary assets.

World Asset Management ("World"), 255 East Brown Street, Birmingham, Michigan
48009, is the investment advisor of Institutional S&P 500 Index Equity Fund and
International Equity Fund. World is a wholly-owned subsidiary of the advisor.
As of March 31, 2000, World had approximately $22.7 billion in assets under
management, of which $17.6 billion were invested in domestic equity securities,
$4.5 billion were invested in international equity securities and $600 million
were invested in other fixed income securities.

Framlington Overseas Investment Management Limited, an affiliate of the
advisor, is the sub-advisor of the Framlington Emerging Markets Fund,
Framlington Global Financial Services Fund, Framlington Healthcare Fund and
Framlington International Growth Fund.

The advisor may, from time to time, make payments to banks, broker-dealers,
financial advisors or other financial institutions for certain services to the
Fund and/or their shareholders, including sub-administration, sub-transfer
agency and shareholder servicing. The advisor may make such payments out of its
own resources and there are no additional costs to the Fund or its
shareholders.

Please note that Comerica Bank, an affiliate of the advisor, receives a fee
from the Fund for providing shareholder services to its customers who own
shares of the Fund.

Portfolio Managers

A committee of professional portfolio managers employed by MCM makes investment
decisions for the Fund.

                                       20
<PAGE>

Financial Highlights
--------------------------------------------------------------------------------

The financial highlights table is intended to help shareholders understand the
Fund's financial performance for the period of the Fund's operations. Certain
information reflects financial results for a single Fund share. The total
returns in the table represent the rate that an investor would have earned (or
lost) on an investment in the Fund (assuming reinvestment of all dividends and
distributions). The information has been audited by Ernst & Young LLP,
independent auditors, whose report, along with the Fund's financial statements,
are included in the annual reports of the Fund, and are incorporated by
reference into the Statement of Additional Information. The information for the
period ended December 31, 1999 is unaudited, is included in the semi-annual
report of the Fund, and is incorporated by reference into the Statement of
Additional Information. You may obtain the semi-annual and annual reports
without charge by calling (800) 438-5789.

<TABLE>
<CAPTION>
                                        Munder Fund of Funds(a)
                                 --------------------------------------------
                                   Period
                                    Ended       Year                  Period
                                  12/31/99      Ended      Year Ended  Ended
                                 (Unaudited)   6/30/99     6/30/98(d) 6/30/97
                                 -----------   -------     ---------- -------
<S>                              <C>           <C>         <C>        <C>
Net asset value, beginning of
 period........................    $ 13.19     $ 12.57      $ 11.35   $10.00
                                   -------     -------      -------   ------
Income from investment opera-
 tions:
Net investment income..........       0.05        0.10         0.05     0.01
Net realized and unrealized
 gain on investments...........       1.71        0.71         1.61     1.34
                                   -------     -------      -------   ------
Total from investment opera-
 tions.........................       1.76        0.81         1.66     1.35
                                   -------     -------      -------   ------
Less distributions:
Dividends from net investment
 income........................      (0.23)      (0.10)       (0.04)      --
Distributions in excess of net
 investment income.............         --       (0.00)(c)       --       --
Distributions from net realized
 capital gains.................      (0.30)      (0.09)       (0.36)      --
Distributions in excess of net
 realized gains................         --          --        (0.04)      --
                                   -------     -------      -------   ------
Total distributions............      (0.53)      (0.19)       (0.44)      --
                                   -------     -------      -------   ------
Net asset value, end of period.    $ 14.42     $ 13.19      $ 12.57   $11.35
                                   =======     =======      =======   ======
Total return(c)................      13.66%       6.63%       15.04%   13.50%
                                   =======     =======      =======   ======
Ratios to average net
 assets/supplemental data:
Net assets, end of period (in
 000's)........................    $66,720     $59,236      $58,780   $1,483
Ratio of operating expenses to
 average net assets............       0.36%(b)    0.36%        0.58%    0.55%(b)
Ratio of net investment income
 to average net assets.........       0.77%(b)    0.41%        0.39%    1.08%(b)
Portfolio turnover rate........         24%         73%          55%       3%
Ratio of operating expenses to
 average net assets without
 expenses reimbursed...........       0.61%(b)    0.63%        0.76%   14.30%(b)
</TABLE>
--------
(a) The Munder Fund of Funds (formerly Munder All-Season Aggressive Fund) Class
    Y Shares commenced operations on April 3, 1997.
(b) Annualized.
(c) Total return represents aggregate total return for the period indicated.
(d) Per share numbers have been calculated using the average shares method.
(e) Amount represents less than $0.01 per share.

                                       21
<PAGE>

More information about the Fund is available free upon request, including the
following:

Annual/Semi-Annual Reports

You will receive unaudited semi-annual reports and audited annual reports on a
regular basis from the Fund. In the Fund's annual report, you will find a
discussion of market conditions and investment strategies that significantly
affected the Fund's performance during its last fiscal year. In addition, you
will also receive updated prospectuses or supplements to this prospectus. In
order to eliminate duplicate mailings, the Fund will only send one copy of the
above communications to (1) accounts with the same primary record owner, (2)
joint tenant accounts, (3) tenant in common accounts and (4) accounts which have
the same address.

Statement Of Additional Information

Provides more details about the Fund and its policies. A current Statement of
Additional Information is on file with the Securities and Exchange Commission
and is incorporated by reference (is legally considered part of this
prospectus).

To Obtain Information:
--------------------------------------------------------------------------------

  By telephone
  1-800-438-5789

  By mail
  Write to:
  The Munder Funds
  c/o PFPC Global Fund Services
  P.O. Box 60428
  King of Prussia, PA 19406-0428

  On the Internet
  Text-only versions of fund documents can be viewed online or downloaded from:
    Securities and Exchange Commission
    http://www.sec.gov

  You can also obtain copies by visiting the Securities and Exchange
  Commission's Public Reference Room in Washington, D.C. (phone 1-202-942-8090)
  or by sending your request and a duplicating fee to the Securities and
  Exchange Commission's Public Reference Section, Washington, D.C. 20549-0102.
  You may also obtain information, after paying a duplicating fee, by electronic
  request at: [email protected]

  You may also find more information about the Fund on the Internet at:
  http://www.munderfunds.com
--------------------------------------------------------------------------------

The Munder Funds, Inc.
SEC file number: 811-7346

PROMFFY600
Investment Advisor: Munder Capital Management
Distributor: Funds Distributor, Inc.
<PAGE>

Application
for new accounts                                                [LOGO]

                                   Class Y &
                                   K shares

PLEASE MAIL YOUR COMPLETE
APPLICATION (printed or typed)
ALONG WITH YOUR CHECK TO:

        The Munder Funds
        c/o PFPC Global Fund Services
        P.O. Box 60428
        King of Prussia, PA 19406-0428

If you have questions regarding this application, please telephone the Transfer
Agent at 1.800.438.5789

[ ]  New Account     [ ]  Change to an Existing Account ______________________

                           1.  ACCOUNT REGISTRATION

-------------------------------------------------------------------------------
Name                                    Social Security Number

-------------------------------------------------------------------------------
Joint Owner (if any)            (If Joint Tenancy, use Social Security Number
                                 of first joint owner)
OR

Uniform Transfer to Minor:
                                             for:
-------------------------------------------------------------------------------
Custodian Name (one custodian only)          Minor's Name (one minor only)


-------------------------------------------------------------------------------
State (Custodian's State of Residence)       Minor's Social Security Number

OR

[ ]  Trust    [ ]  Corporation    [ ]  Other (please specify)
                                                             ------------------

-------------------------------------------------------------------------------
Trust/Corporation Name


-------------------------------------------------------------------------------
Trust Date                                    Trust Identification Number


                             2.  MAILING  ADDRESS
     (address for reports, dividends, statements and redemption proceeds)

-------------------------------------------------------------------------------
Street                                                          Apt.

-------------------------------------------------------------------------------
City                  State         Zip Code               Telephone Number


Non-Resident Alien:   [ ] Yes   [ ] No   If Yes, Country of Residence
<PAGE>

                             3. INITIAL INVESTMENT

Minimum investment for Class Y of $500,000. Please be sure to read the
prospectus carefully before investing or sending money. You may request an
additional prospectus by calling 1.800.438.5789.

<TABLE>
<CAPTION>


NAME OF MUNDER FUND                              Fund Code       Class Y     Class K     Investment Amount
                                                                   000         100
                                                                   ---         ---
<S>                                              <C>             <C>         <C>         <C>
[ ] Munder Fund of Funds                            52             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Balanced Fund                            14             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Focus Growth Fund                        28             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Future Technology Fund                   33             [ ]         N/A       $
                                                                                          -----------------
[ ] Munder Equity Income Fund                       18             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Growth Opportunities Fund                32             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Index 500 Fund                           06             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder International Equity Fund                07             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder International NetNet Fund                               [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Micro-Cap Equity Fund                    29             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Multi-Season Growth Fund                 20             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder NetNet Fund                              26             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Real Estate Equity Investment Fund       21             [ ]         [ ]       $
    ($250,000 minimum investment for Class Y)                                             -----------------
[ ] Munder Small-Cap Value Fund                     30             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Small Company Growth Fund                05             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Framlington Emerging Mrkts. Fund         81             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Framlington Global Fin'l Srvcs Fund      83             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Framlington Healthcare Fund              82             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Framlington Int'l. Growth Fund           80             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Bond Fund                                09             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Intermediate Bond Fund                   08             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder International Bond Fund                  25             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Michigan Tax-Free Bond Fund              16             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Tax-Free Bond Fund                       17             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Tax-Free Short-Intrmd. Bond Fund         12             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder U.S. Government Income Fund              19             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder Cash Investment Fund                     01             [ ]         [ ]       $
                                                                                          -----------------
[ ] Money Market Fund                               22             [ ]         N/A       $
                                                                                          -----------------
[ ] Munder Tax-Free Money Market Fund               02             [ ]         [ ]       $
                                                                                          -----------------
[ ] Munder U.S. Treasury Money Market Fund          03             [ ]         [ ]       $
                                                                                          -----------------
[ ] Other Munder Fund
                     --------------------------                    [ ]         [ ]       $
                                                                                          -----------------
                                                           Total Amount Invested         $
                                                                                          -----------------
[ ] By Check (Payable to The Munder Funds)
[ ] By Wire. Account Number: _____________________________ (Account number assigned by Bank from which assets were wired.)
</TABLE>
<PAGE>

                            4.  DEALER INFORMATION

FOR DEALER USE ONLY
We hereby authorize PFPC Global Fund Services to act as our agent in connection
with transactions authorized by this Application and agree to notify PFPC Global
Fund Services of any purchase made under a Letter of Intent or Right of
Accumulation.


-------------------------------------------------------------------------------
Dealer's Name                        Main Office Address


-------------------------------------------------------------------------------
Representative's Name                Branch #             Rep #


-------------------------------------------------------------------------------
Branch Address                                            Telephone #


-------------------------------------------------------------------------------
Authorized Signature of Dealer                            Title



                            5.  DISTRIBUTION OPTION


DIVIDENDS                                 CAPITAL GAINS
[ ] A. Reinvest in additional shares.     [ ] A. Reinvest in additional shares.
[ ] B. Pay in Cash by Check               [ ] B. Pay in Cash by Check
[ ] C. Pay in Cash by Electronic Funds    [ ] C. Pay in Cash by Electronic Funds

         Transfer to my Bank                         Transfer to my Bank
Fill out banking information in Section 8     Fill out banking information in
                                              Section 8


                   6.  AUTOMATIC INVESTMENT PLAN (Optional)


[ ] YES, I(We) wish to participate in the Automatic Investment Plan (AIP), and
authorize PFPC Global Fund Services, The Munder Funds' transfer agent to perform
the following:

Amount to invest $_________($50 minimum)  [ ]  Monthly  or [ ]  Quarterly
[ ] 5th or the  [ ] 20th of the month


-------------------------------------------------------------------------------
Name of Fund                            Percentage (equal if not indicated)


-------------------------------------------------------------------------------
Name of Fund                            Percentage (equal if not indicated)


  Fill out banking information in Section 8


                 7.  TELEPHONE REDEMPTION & EXCHANGE AGREEMENT

Please check the box if you want this option.
[ ]  I(We) authorize PFPC Global Fund Services to act upon instructions received
     by telephone from me(us) to redeem or to exchange shares of The Munder
     Funds.
     1.  I(We) relieve the Funds or PFPC Global Fund Services of any liability
         for the loss, cost or expense for acting upon such instructions
         reasonably believed to be from me(us).
     2.  I(We) assume responsibility for notifying the Funds within seven (7)
         business days if a confirmation for the transaction is not received or
         is incorrect.
     3.  If an exchange involves an initial investment into a Fund, the account
         registration will carry the same registration as set forth above.
     4.  An exchange deemed to be the initial purchase of a Fund must meet the
         minimum initial investment requirement of $500,000 for Class Y shares
         ($250,000 for Real Estate Equity Fund Class Y shares) unless the
         shareholder is establishing an Automatic Investment Plan.
     5.  Redemption proceeds will be sent only to my account address of record
         or banking wire instructions as established in Section 8.


-------------------------------------------------------------------------------
Name                                              Name
      Fill out banking information in Section 8
<PAGE>

                            8.  BANKING INFORMATION


-------------------------------------------------------------------------------
Bank Name                   Address         [ ] Checking    [ ] Savings Account



-------------------------------------------------------------------------------
ABA Number (Bank Routing Number)          Account Number


-------------------------------------------------------------------------------
Bank Account Registration


[ ]  Check if Section 5 (Distribution Option), "Choice C" was completed.
I(We) authorize The Munder Funds to deposit distributions into the account
indicated above.

[ ]  Check if Section 6 (Automatic Investment Plan), was completed.
Please note that your bank will clear and process each bank draft and will
include it with your regular statements. However, acceptan ce of this
authorization in conditional upon approval of your authorization by your bank,
which will allow PFPC Global Fund Services, the transfer agent of The Munder
Funds, to act as your agent with regard to the Automatic Investment Plan (AIP).
The AIP will autom atically terminate without notice if any bank draft in not
paid upon presentation by PFPC Global Fund Services, to your bank. The AIP may
be modified or terminated at any time, upon thirty (30)-days written notice.

[ ]  Check if Section 7 (Telephone Redemption), was completed.
I(We) authorize The Munder Funds to send by Fed wire redemption proceeds to the
account indicated above.

For the purposes of verifying my account number, I have enclosed a blank check
or deposit slip marked "VOID" and have signed the authorization below.


-------------------------------------------------------------------------------
Signature of Depositor    Date     Signature of Joint Depositor (if any)   Date


                 Please Staple Void Check or Deposit Slip Here


                             [ART WORK GOES HERE]
<PAGE>

                    9.  CHECKWRITING PRIVILEGES (Optional)


If you are opening an account for any of The Munder Income and/or Money Market
Funds, you are entitled to the checkwriting option. Redemption checks may be
written for amounts of $500 or more. To obtain checks, please complete the
signature card below. All persons named in the Account Registration in Section
1 must sign the signature card. For Corporate, Trust or Partnership accounts,
only authorized signers must sign. By signing this signature card, you agree to
be subject to the customary rules and regulations governing checking accounts,
as well as instructions and rules of the Fund now in effect, and as amended from
time to time, that pertain to the use of redemption checks.

Please fill out the following Signature Card to be eligible for Checkwriting and
indicate the Fund(s) for which you are requesting this service:


-------------------------------------------------------------------------------
Fund(s)


-------------------------------------------------------------------------------
Fund(s)
Authorized Signatures (exactly as it appears in Part 1 of the Application):


-------------------------------------------------------------------------------
Print Name                             Signature


-------------------------------------------------------------------------------
Print Name                             Signature


-------------------------------------------------------------------------------
Print Name                             Signature

Check here if more than one signature is required per check:
                                                   [ ] 2   [ ] 3  [ ] Other:

              10.  AUTHORIZATIONS, CERTIFICATIONS AND SIGNATURES


By signing the application, I(we) hereby certify under the penalty of perjury
that the information on this application is true, complete and correct and that:

I(We) understand that this order is subject to acceptance by The Munder Funds.

I(We) agree that The Munder Funds, Funds Distributor, Inc., PFPC Global Fund
Services, Munder Capital Management or any of its affiliates, officers,
directors or employees will not be liable for any loss, expense or cost for
acting upon instructions or inquiries reasonably believed to be genuine. Shares
of the Funds are not insured or guaranteed by the Federal Deposit Insurance
Corporation, the Federal Reserve Board, or any other agency. An investment in
the Funds involves investment risks, including the possible loss of principal.

I(We) represent that I am (we are) of legal age and capacity and have read the
Prospectus(es) for The Munder Funds selected, and agree to its (their) terms.
PFPC Global Fund Services is hereby appointed agent to receive dividends and
distributions for automatic reinvestment unless otherwise directed in Section 5.


-------------------------------------------------------------------------------
Taxpayer Identification Number      Name of Taxpayer Whose Number Appears Above

Taxpayer Identification:

I (the Investor) certify under penalties of perjury that:

(1)  The Social Security Number or taxpayer identification number shown above is
     correct and may be used for and custodial or trust account opened for me by
     The Munder Funds, and

(2)  I (the Investor) am not subject to backup withholding because:

     (a)  I am exempt from Backup Withholding

     (b)  I have not been notified by the Internal Revenue Service ("IRS") that
          I am, as a result of failure to report all interest or dividends, or

     (c)  the IRS has notified me that I am no longer subject to backup
          withholding.

The certification in this paragraph is required from all non-exempt persons to
prevent backup withholding of 31% of all taxable distributions and gross
redemption proceeds under the Federal income tax law.

[ ] Check here if you are subject to backup withholding or have not received a
    notice from the IRS advising you that backup withholding has been
    terminated.
<PAGE>

Authorization:


-------------------------------------------------------------------------------
Signature of Owner      Date    Name


-------------------------------------------------------------------------------
Signature of Owner      Date    Name

I am eligible for class y or class k shares because i certify that i am a/an
(must be filled out):

[ ] Investment Advisory client of Munder Capital Management
                                                           --------------------
                                                            Portfolio Manager

[ ] Current director, trustee, officer or employee of Munder Capital Management,
        the Fund or the Distributor; or

[ ] A family member of the above
                                 ----------------------------------------------
                                 Name of Munder Contact            Relationship

[ ] "Institutional investor" as defined in the prospectus

[ ] Customer of a financial institution that has entered into a shareholder
    service agreement with the Munder Funds


-------------------------------------------------------------------------------
        Institution                                  Advisor's Name

[ ] Other - please explain
                           ----------------------------------------------------

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

I also certify that this purchase is for personal investment purposes and the
shares acquired hereunder shall not be resold except through redemption by the
Fund.

This purchase is being made for myself as outlined in the Fund's prospectus. I
agree to notify you in writing of any change in the forgoing and agree not to
purchase additional fund shares at net asset value unless I am entitled to do so
under the Fund's prospectus. I understand that the privilege to purchase fund
shares at a net asset value may be modified or terminated at any time.

I (we) understand that this order is subject to acceptance by The Munder Funds.

Please sign below exactly as the account is to be registered. Corporation, etc.
indicate titles:

-------------------------------------------------------------------------------
Signature of Owner                  Date               Name


-------------------------------------------------------------------------------
Signature of Owner                  Date               Name


-------------------------------------------------------------------------------
Munder Funds Approval (required)                       Date



-------------------------------------------------------------------------------
Shares of The Munder Funds are not deposits or obligations of, or guaranteed or
endorsed by any bank, and are not federally insured by the Federal Deposit
Insurance Corporation, the Federal Reserve Board, or any other agency. All
mutual fund shares involve certain investment risks, including the possible loss
of principal.
-------------------------------------------------------------------------------

Distributor: Funds Distributor, Inc.                                   APPYK00
<PAGE>

[LOGO]
  THE
MUNDER
  FUNDS

Investments
  for all seasons

                                                              CLASS A & B SHARES



                                                                      Prospectus
                                                                   June 29, 2000
                                             Munder All-Season Conservative Fund
                                                 Munder All-Season Moderate Fund


                                    As with all mutual funds, the Securities and
                                         Exchange Commission has not approved or
                                disapproved these securities nor passed upon the
                                  accuracy or adequacy of this prospectus. It is
                                          a criminal offense to state otherwise.
<PAGE>

Table Of Contents

<TABLE>
 <C> <S>
 2   Risk/Return Summary
 8   Who May Want To Invest
 9   Fees And Expenses
 11  More About The Funds
 11  Glossary
 12  Asset Allocation Chart
 13  Description Of The Underlying funds
 15  Principal Investment Strategies And Risks
 17  Other Investment Strategies And Risks Of The Funds And Underlying Funds
 20  Disclaimers
 21  Your Investment
 21  How To Reach The Funds
 21  Purchasing Shares
 22  Exchanging Shares
 22  Redeeming Shares
 23  Additional Policies For Purchases, Exchanges And Redemptions
 24  Shareholder Privileges
 25  Distribution Arrangements
 25  Share Class Selection
 25  Applicable Sales Charge
 27  CDSC
 28  12b-1 Fees
 28  Other Information
 29  Pricing of Fund Shares
 29  Distributions
 30  Federal Tax Considerations
 30  Taxes On Distributions
 30  Taxes On Sales Or Exchanges
 30  Other Considerations
 31  Management
 31  Investment Advisor
 31  Portfolio Managers
 32  Financial Highlights
</TABLE>

Back Cover For Additional Information
<PAGE>

Risk/Return Summary
--------------------------------------------------------------------------------

This Risk/Return Summary briefly describes the goals and principal investment
strategies of the Funds and the principal risks of investing in the Funds. For
further information on these and the Funds' other investment strategies and
risks, please read the section entitled "More About the Funds." Certain terms
used in this prospectus are defined in the Glossary.

 Fund of Funds

 Each Fund is a fund of funds,
 which means that it invests almost
 all of its assets in other mutual
 funds, rather than in individual
 securities. Each Fund invests its
 assets in a variety of other
 Munder Funds, referred to as
 "underlying funds."

 The risks of investing in the
 Funds are dependent on which
 underlying funds the Funds invest
 in, and to what extent. In
 addition, the investment
 performance of each Fund is
 directly related to the
 performance of the underlying
 funds in which it invests.


 Investment Approach of the Underlying Funds

 . The underlying equity funds
   represented in each Fund vary
   from growth to value styles of
   investing, from larger to
   smaller company stocks and from
   domestic to international
   equities.

 . The underlying fixed income
   funds reflect the advisor's core
   fixed income philosophy:
   interest rate relationships,
   sector weightings and credit
   analysis. Some exposure to
   international bonds may also be
   included.


Conservative Fund

Goal

The Fund's goal is to provide current income with capital appreciation as a
secondary objective.

Principal Investment Strategies

As a fund of funds, the Fund pursues its goal by investing a majority of its
assets in underlying funds that invest primarily in fixed income securities.

The Fund may also invest a portion of its assets in underlying funds that
invest primarily in equity securities or money market instruments.

The advisor may periodically adjust the Fund's asset allocation among
underlying funds in response to changing economic and market conditions. The
typical allocation is expected to be: 70% Fixed Income Funds, 25% Equity Funds
and 5% Money Market Funds.

The Fund's indirect fixed income holdings are a mix of short-, intermediate-
and long-term U.S. government securities, mortgage and other asset-backed
securities, stripped securities and obligations of state, local and foreign
issuers. The average maturity will range from three to 15 years and the
portfolios' holdings will be rated investment grade or better or if unrated are
of comparable quality. The Fund's indirect, stock holdings will be a
combination of large-cap, mid-cap and small-cap U.S. stocks as well as foreign
stocks.

In the "More About the Funds" section, you will find a description of the
underlying funds and a chart showing the percentage of its assets that the Fund
may invest in each underlying fund.

Principal Risks

All investments have some degree of risk which will affect the value of a
portfolio's investment, its investment performance and the price of its shares.
As a result, you may lose money if you invest in the Fund.

An investment in the Fund is not a bank deposit and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other
governmental agency.

                                       2
<PAGE>

Among the principal risks of investing in the Fund are:

 . Interest Rate Risk. Increases in prevailing interest rates will cause fixed-
  income securities held by an underlying fund to decline in value. Longer term
  bonds are generally more sensitive to interest rate changes than shorter term
  bonds. Generally, the longer the average maturity of the bonds held by the
  underlying fund, the more the Fund's share price will fluctuate in response
  to interest rate changes.

 . Credit (or Default) Risk. An issuer of a security may default on its payment
  obligations. Also, an issuer may suffer adverse changes in financial
  condition that could lower the credit quality of a security, leading to
  greater volatility in the price of the security and in shares of the Fund. A
  change in the quality rating of a bond can affect the bond's liquidity and
  make it more difficult for the underlying fund to sell.

 . Prepayment Risk. The fund may experience losses when an issuer exercises its
  right to pay principal on an obligation held by an underlying fund (such as a
  mortgage-backed security) earlier than expected. This may happen during a
  period of declining interest rates. Under these circumstances, the underlying
  fund may be unable to recoup all of its initial investment and will suffer
  from having to reinvest in lower yielding securities. The loss of higher
  yielding securities and the reinvestment at lower interest rates can reduce
  the Fund's income, total return and share price.

Because the mix of underlying funds held by the Fund can change from time to
time, the Fund may be subject to the following additional principal risks at
various times:

 . Stock Market Risk. The value of the securities in which a Fund invests may
  decline in response to general economic conditions. Price changes may be
  temporary or last for extended periods. For example, stock prices have
  historically risen and fallen in periodic cycles. In addition, the value of a
  Fund's investments may decline if the particular companies the Fund invests
  in do not perform well.

 . Foreign Securities Risk. Investments by an underlying fund in foreign
  securities may experience greater and more rapid changes in value than U.S.
  securities. Foreign securities are generally more volatile and less liquid
  than U.S. securities, in part because of greater political and economic risks
  and because there is less public information available about foreign
  companies. Issuers of foreign securities are generally not subject to the
  same degree of regulation as are U.S. issuers. The reporting, accounting and
  auditing standards of foreign countries may differ, in some cases
  significantly, from U.S. standards.

 . Currency Risk. A decline in the value of foreign currencies relative to the
  U.S. dollar will reduce the value of an underlying fund's portfolio
  securities denominated in those currencies.

 . Smaller Company Stock Risk. The stocks of small or medium-size companies may
  have more risks than those of larger companies. Small or medium-size
  companies often have narrower markets and more limited managerial and
  financial resources than larger, more established companies. As a result,
  they may be more sensitive to changing economic conditions, which could
  increase the volatility of an underlying fund's portfolio. In addition, small
  company stocks typically are traded in lower volume making them more
  difficult to sell.

 . Sector Risk. Certain underlying funds may concentrate its investments in a
  particular industry sector. Adverse economic, business or political
  developments affecting that industry sector could have a major effect on the
  value of the underlying fund's investments.

                                       3
<PAGE>

Performance

The bar chart and table below give some indication of the risk of an investment
in the Fund. The bar chart shows the Fund's performance for each calendar year
since inception. The table shows how the Fund's average annual total returns
for different calendar periods over the life of the Fund compare to those of a
broad based securities market index.

When you consider this information, please remember the Fund's performance in
past years is not necessarily an indication of how the Fund will perform in the
future.

The annual returns in the bar chart
are for the Fund's Class B Shares
and do not reflect sales loads. If
sales loads were reflected, returns
would be less than those shown.
<TABLE>
<CAPTION>
                         Average Annual Total Returns
                         (for the periods ended December 31, 1999)
                                          ----------------------------------------
                                                                         Since
                                                    1 Year             Inception*
                                          ----------------------------------------
                         <S>                        <C>                <C>
                         Class A                    (3.73)%              (2.17)%
                         Class B                    (2.88)%               0.62%
                         Lehman Brothers Int.
                         Gov't/Corp. Index**         0.39%                4.10%***
                           Class B                                        2.18%***
</TABLE>

                                          --------
                                          *The inception dates for Class A and
                                             Class B shares are 3/13/98 and
                                             1/14/98, respectively.
                                          **The Lehman Brothers Intermediate
                                             Government/Corporate Bond Index
                                             is a weighted composite of (i)
                                             Lehman Brothers Intermediate
                                             Government Bond Index, which is
                                             comprised of all publicly issued,
                                             non-convertible debt of the U.S.
                                             Government or any agency thereof,
                                             quasi-federal corporations and
                                             corporate debt guaranteed by the
                                             U.S. Government with a maturity
                                             between one and ten years and
                                             (ii) Lehman Brothers Corporate
                                             Bond Index, which is comprised of
                                             all public fixed-rate, non-
                                             convertible investment-grade
                                             domestic corporate debt,
                                             excluding collaterized mortgage
                                             obligations.
                                          ***Index return from 3/31/97 for
                                             Class A shares and 1/31/98 for
                                             Class B shares.

                                          The average annual total returns
                                          reflect imposition of the maximum
                                          front-end or contingent deferred
                                          sales charge and conversion of Class
                                          B shares to Class A shares after the
                                          applicable period.

All-Season Conservative Fund Class B
Total Return
(per calendar year)
[Bar Chart]

1999:     2.09%

Year-to-date through March 31, 2000: 4.47%

<TABLE>
<S>                                    <C>                                                   <C>
Best Quarter:                          Q4 1999                                                4.34%
Worst Quarter:                         Q3 1999                                               (2.34%)
</TABLE>

                                       4
<PAGE>


Moderate Fund

Goal

The Fund's goal is to provide high total return through both capital
appreciation and current income.

Principal Investment Strategies

As a fund of funds, the Fund pursues its goal by investing a majority of its
assets in underlying funds that invest primarily in equity securities and fixed
income securities.

The Fund may also invest a small portion of its assets in underlying money
market funds.

The advisor may periodically adjust the Fund's asset allocation among
underlying funds in response to changing economic and market conditions. The
typical allocation is expected to be: 60% Equity Funds, 35% Fixed Income Funds
and 5% Money Market Funds.

The Fund's indirect stock holdings will be a mix of large-cap, mid-cap and
small-cap U.S. stocks as well as foreign stocks. The Fund's indirect fixed
income holdings are a combination of short-, intermediate- and long-term U.S.
government securities, mortgage and other asset-backed securities, stripped
securities and obligations of state, local and foreign issuers. The average
maturity will range from three to 15 years and the portfolios' holdings will be
rated investment grade or better or if unrated are of comparable quality.

In the "More About the Funds" section, you will find a description of the
underlying funds and a chart showing the percentage of its assets that the Fund
may invest in each underlying fund.

Principal Risks

All investments have some degree of risk which will affect the value of a
portfolio's investment, its investment performance and the price of its shares.
As a result, you may lose money if you invest in the Fund.

An investment in the Fund is not a bank deposit and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other
governmental agency.

Among the principal risks of investing in the Fund are:

 . Stock Market Risk. The value of the securities in which a Fund invests may
  decline in response to general economic conditions. Price changes may be
  temporary or last for extended periods. For example, stock prices have
  historically risen and fallen in periodic cycles. In addition, the value of a
  Fund's investments may decline if the particular companies the Fund invests
  in do not perform well.

 . Foreign Securities Risk. Investments by an underlying fund in foreign
  securities may experience greater and more rapid changes in value than U.S.
  securities. Foreign securities are generally more volatile and less liquid
  than U.S. securities, in part because of greater political and economic risks
  and because there is less public information available about foreign
  companies. Issuers of foreign securities are generally not subject to the
  same degree of regulation as are U.S. issuers. The reporting, accounting and
  auditing standards of foreign countries may differ, in some cases
  significantly, from U.S. standards.

 . Currency Risk. A decline in the value of foreign currencies relative to the
  U.S. dollar will reduce the value of an underlying fund's portfolio
  securities denominated in those currencies.

 . Smaller Company Stock Risk. The stocks of small or medium-size companies may
  have more risks than those of larger companies. Small or medium-size
  companies often have narrower markets and more limited managerial and
  financial resources than larger, more established companies. As a result,
  they may be more sensitive to changing economic conditions, which could
  increase the volatility of an underlying fund's portfolio. In addition, small
  company stocks typically are traded in lower volume making them more
  difficult to sell.

 . Sector Risk. Certain underlying funds may concentrate its investments in a
  particular industry sector. Adverse economic, business or political
  developments affecting that industry sector could have a major effect on the
  value of the underlying fund's investments.

                                       5
<PAGE>

Because the mix of underlying funds held by the Fund can change from time to
time, the Fund may be subject to the following additional principal risks at
various times:

 . Interest Rate Risk. Increases in prevailing interest rates will cause fixed-
  income securities held by an underlying fund to decline in value. Longer
  term bonds are generally more sensitive to interest rate changes than
  shorter term bonds. Generally, the longer the average maturity of the bonds
  held by the underlying fund, the more the Fund's share price will fluctuate
  in response to interest rate changes.

 . Credit (or Default) Risk. An issuer of a security may default on its payment
  obligations. Also, an issuer may suffer adverse changes in financial
  condition that could lower the credit quality of a security, leading to
  greater volatility in the price of the security and in shares of the Fund. A
  change in the quality rating of a bond can affect the bond's liquidity and
  make it more difficult for the underlying fund to sell.

 . Prepayment Risk. The Fund may experience losses when an issuer exercises its
  right to pay principal on an obligation held by an underlying fund (such as
  a mortgage-backed security) earlier than expected. This may happen during a
  period of declining interest rates. Under these circumstances, the
  underlying fund may be unable to recoup all of its initial investment and
  will suffer from having to reinvest in lower yielding securities. The loss
  of higher yielding securities and the reinvestment at lower interest rates
  can reduce the Fund's income, total return and share price.

                                       6
<PAGE>

Performance

The bar chart and table below give some indication of the risk of an investment
in the Fund. The bar chart shows the Fund's performance for each calendar year
since inception. The table shows how the Fund's average annual total returns
for different calendar periods over the life of the Fund compare to those of a
broad based securities market index.

When you consider this information, please remember the Fund's performance in
past years is not necessarily an indication of how the Fund will perform in the
future.

The annual returns in the bar chart       Average Annual Total Returns
are for the Fund's Class A Shares         (for the periods ended December 31,
and do not reflect sales loads. If        1999)
sales loads were reflected, returns
would be less than those shown.
<TABLE>
                                          --------------------------------------
<CAPTION>
                                                                       Since
                                                             1 Year  Inception*
                                          --------------------------------------
                         <S>                                 <C>     <C>
                         Class A                              8.51%    13.12%
                         Class B                              9.12%     9.72%
                         60% S&P 500 Index/40% Lehman Gov't
                          Corp. Index**                      11.76%    21.05%***
                          Class B                                       7.98%***
</TABLE>

                                           --------
                                          *  The inception dates for the Class
                                             A shares and Class B shares are
                                             4/4/97 and 1/14/98, respectively.
                                          ** Standard & Poor's Composite 500
                                             Index is an unmanaged index of
                                             common stock prices. The Lehman
                                             Brothers Government/Corporate
                                             Bond Index is a weighted
                                             composite of (i) Lehman Brothers
                                             Government Bond Index, which is
                                             comprised of all publicly issued,
                                             non-convertible debt of the U.S.
                                             Government or any agency thereof,
                                             quasi-federal corporations, and
                                             corporate debt guaranteed by the
                                             U.S. Government and (ii) Lehman
                                             Brothers Corporate Bond Index,
                                             which is comprised of all public
                                             fixed-rate, non-convertible
                                             investment-grade domestic
                                             corporate debt, excluding
                                             collateralized mortgage
                                             obligations.
                                          ***Index return from 3/31/97 for
                                             Class A shares and 1/31/98 for
                                             Class B shares.

                                          The average annual total returns
                                          reflect imposition of the maximum
                                          front-end or contingent deferred
                                          sales charge and conversion of Class
                                          B shares to Class A shares after the
                                          applicable period.
All-Season Moderate Fund Class A

Total Return
(per calendar year)
[BAR CHART]
1998      6.87%
1999     14.85%

Year-to-date through March 31, 2000:
9.66%

<TABLE>
<S>                                    <C>                                                    <C>
Best Quarter:                          Q 4 1999                                               14.70%
Worst Quarter:                         Q 3 1998                                               (9.74)%
</TABLE>

                                       7
<PAGE>

Who May Want To Invest

The All-Season Conservative Fund may be appropriate for investors who:

 . Seek current income.

 . Seek long term growth without taking undue risk.

The All-Season Moderate Fund may be appropriate for investors who:

 . Seek a balance of both capital appreciation and income.

                                       8
<PAGE>

Fees And Expenses

The tables below describe the fees and expenses that you may pay if you buy and
hold shares the Funds. Please note that the following information does not
include fees that institutions may charge for services they provide to you.

<TABLE>
<CAPTION>
                                                              Class A   Class B
                                                              Shares    Shares
Shareholder Fees (fees paid directly from your investment)    -------   -------
<S>                                                           <C>       <C>
Maximum Sales Charge (Load) Imposed on Purchases (as a % of
 offering price)............................................   5.5%(a)    None
Maximum Deferred Sales Charge (Load)(as a % of the lesser of
 original purchase price or redemption proceeds)............   None(b)   5%(c)
Sales Charge (Load) Imposed on Reinvested Dividends.........   None       None
Redemption Fees.............................................   None       None
Exchange Fees...............................................   None       None
</TABLE>

Annual Fund Operating Expenses (expenses that are paid from Fund assets) as a %
of net assets

<TABLE>
<S>                                                              <C>     <C>
Conservative Fund
<CAPTION>
                                                                 Class A Class B
                                                                 Shares  Shares
                                                                 ------- -------
<S>                                                              <C>     <C>
Management Fees(1)..............................................   .35%    .35%
Distribution and/or Service (12b-1) Fees........................   .30%   1.00%
Other Expenses(1)...............................................  5.61%   5.61%
                                                                  ----    ----
Total Annual Fund Operating Expenses(1).........................  6.26%   6.96%
                                                                  ====    ====

Moderate Fund
<CAPTION>
                                                                 Class A Class B
                                                                 Shares  Shares
                                                                 ------- -------
<S>                                                              <C>     <C>
Management Fees(1)..............................................   .35%    .35%
Distribution and/or Service (12b-1) Fees........................   .30%   1.00%
Other Expenses(1)...............................................  1.89%   1.89%
                                                                  ----    ----
Total Annual Fund Operating Expenses(1).........................  2.54%   3.24%
                                                                  ====    ====
</TABLE>
--------
(a) The sales charge declines as the amount invested increases.
(b) A contingent deferred sales charge (CDSC) is a one-time fee charged at the
    time of redemption. A 1% CDSC applies to redemptions of Class A shares
    within one year of investment that were purchased with no initial sales
    charge as part of an investment of $1,000,000 or more.
(c) The CDSC payable upon redemption of Class B shares declines over time.
(1) For the fiscal year ended June 30, 1999, the advisor voluntarily waived a
    portion of its management fees and voluntarily reimbursed certain operating
    expenses. As a result of these voluntary fee waivers and expense
    reimbursements, the actual management fees, operating expenses and total
    annual fund operating expenses paid by the Funds were: .10%, .31% and .71%,
    respectively, for Class A shares and .10%, .31% and 1.41%, respectively,
    for Class B shares of the Conservative Fund; and .10%, .26% and .66%,
    respectively, for Class A shares and .10%, .26% and 1.36%, respectively,
    for Class B shares of the Moderate Fund. The advisor may terminate the fee
    waivers and/or expense reimbursements at any time.

In addition to the expenses shown above, shareholders of the Funds will
indirectly bear their pro rata shares of the annual operating expenses of the
underlying funds. As a result, the investment returns of the Funds will be net
of the expenses of the Underlying Funds. Since the Funds invest in other Munder
Funds, as a shareholder you will pay a higher expense ratio than if you had
purchased shares of an underlying fund directly. The underlying funds' total
annual fund operating expense ratios for the fiscal year ended June 30, 1999
ranged from .32% to 2.45%.

                                       9
<PAGE>

Example

The examples are intended to help you compare the cost of investing in each
Fund to the cost of investing in other mutual funds. The examples assume that
you invest $10,000 in each Fund for the time periods indicated. The examples
also assume that your investment has a 5% return each year, that each Fund's
operating expenses remain the same and that all dividends and distributions are
reinvested. Although your actual costs may be higher or lower, based on these
assumptions your costs would be:

<TABLE>
<S>                                                 <C>     <C>        <C>
Conservative Fund
<CAPTION>
                                                    Class A Class B    Class B
                                                    Shares  Shares*    Shares**
                                                    ------- -------    --------
<S>                                                 <C>     <C>        <C>
1 Year............................................. $1,146  $1,185      $  695
3 Years............................................ $2,308  $2,327      $2,045
5 Years............................................ $3,439  $3,430      $3,430
10 Years........................................... $6,143  $6,149***   $6,149***

Moderate Fund
<CAPTION>
                                                    Class A Class B    Class B
                                                    Shares  Shares*    Shares**
                                                    ------- -------    --------
<S>                                                 <C>     <C>        <C>
1 Year............................................. $  796  $  837      $  328
3 Years............................................ $1,301  $1,318      $1,002
5 Years............................................ $1,832  $1,808      $1,700
10 Years........................................... $3,279  $3,246***   $3,246***
</TABLE>
--------
   * Assumes you sold your shares at the end of the time period.
  ** Assumes you stayed in the Fund.
 *** Reflects conversion of Class B shares to Class A shares (which pay lower
     ongoing expenses) approximately six years after the date of original
     purchase.

                                       10
<PAGE>

More About The Funds
--------------------------------------------------------------------------------

This section describes the underlying funds in which the Funds may invest. It
also discusses the risks of investing in the Funds, which are dependent upon
which underlying funds the Funds invest in, and to what extent. Further,
included in this section is a chart that shows the maximum percentage of its
assets that a Fund may invest in each underlying fund. Please note that the
underlying funds may also invest in securities and are subject to restrictions
and additional risks which are described in the Statement of Additional
Information.

The Glossary below explains certain terms used throughout this prospectus.

Glossary

Types Of Securities

Equity securities include common stocks, preferred stocks, securities
convertible into common stocks, and rights and warrants to subscribe for the
purchase of common stocks. Equity securities may be listed on a stock exchange
or NASDAQ National Market System or unlisted. Warrants are rights to purchase
securities at a specified time at a specified price.

Fixed income securities are securities that pay interest at set times at either
fixed, floating or variable rates, or which are issued at a discount to their
principal amount instead of making periodic interest payments. Fixed income
securities include corporate bonds, debentures and other similar corporate debt
instruments, zero coupon bonds and variable amount master demand notes.

Convertible Securities.  A convertible security is a bond or preferred stock
that may be converted (exchanged) into the common stock of the issuing company
within a specified time period for a specified number of shares. Convertible
securities offer the underlying funds a way to participate in the capital
appreciation of the common stock into which the securities are convertible,
while earning higher current income than is available from the common stock.

U.S. Government securities are securities issued or guaranteed by the U.S.
Government, its agencies or instrumentalities. These securities include U.S.
Treasury bills, U.S. Treasury notes, U.S. Treasury bonds and obligations of the
Federal Home Loan Corporation, Federal National Mortgage Association and
Government National Mortgage Association.

Money market instruments are high-quality, short-term instruments including
commercial paper, bankers' acceptances and negotiable certificates of deposit
of banks or savings and loan associations, short-term corporate obligations and
short-term U.S. Government securities.

Rating Agencies and Indices

Moody's is Moody's Investor Services, Inc.

Duff & Phelps is Duff & Phelps Credit Rating Co.

Fitch is Fitch IBCA, Inc.

S&P is Standard & Poor's Rating Services.

S&P 500 is S&P's 500 Composite Stock Price Index, a widely recognized unmanaged
index of U.S. stock market activity.

Other

1940 Act is the Investment Company Act of 1940, as amended.

Internal Revenue Code is the Internal Revenue Code of 1986, as amended.

NAV is the net asset value per share of a Fund. NAV is the value of a single
share of a Fund. Each Fund calculates NAV separately for each class. NAV is
calculated by (1) taking the current value of a Fund's total assets allocated
to a particular class of shares, (2) subtracting the liabilities and expenses
charged to that class (3) dividing that amount by the total number of shares of
that class outstanding.
                                       11
<PAGE>

Asset Allocation Chart

The following chart shows the Fund's maximum investment (expressed as a
percentage of each Fund's assets) that each Fund may make in the underlying
funds.

<TABLE>
<CAPTION>
                                                           Conservative Moderate
                                                               Fund       Fund
                                                           ------------ --------
      <S>                                                  <C>          <C>
      Equity Funds
      Equity Income Fund..................................     10%        15%
      Focus Growth Fund...................................     10%        20%
      Future Technology Fund..............................      5%        10%
      Growth Opportunities Fund...........................     10%        15%
      Institutional S&P 500 Index Equity Fund.............     20%        30%
      International Equity Fund...........................      5%        10%
      International NetNet Fund...........................     10%        10%
      Micro-Cap Equity Fund...............................     10%        10%
      Multi-Season Growth Fund............................     20%        30%
      NetNet Fund.........................................      5%         5%
      Real Estate Equity Investment Fund..................     10%        20%
      Small-Cap Value Fund................................     10%        20%
      Small Company Growth Fund...........................     20%        30%
      Framlington Emerging Markets Fund...................      5%        10%
      Framlington Global Financial Services Fund..........      5%        10%
      Framlington Healthcare Fund.........................      5%         5%
      Framlington International Growth Fund...............      5%        10%
      Income Funds
      Bond Fund...........................................     80%        50%
      Intermediate Bond Fund..............................     80%        50%
      International Bond Fund.............................     30%        20%
      U.S. Government Income Fund.........................     60%        40%
      Money Market Funds
      Cash Investment Fund................................     15%        15%
      Money Market Fund...................................     10%        10%
      U.S. Treasury Money Market Fund.....................     10%        10%
</TABLE>

                                       12
<PAGE>

Description of Underlying Funds

Equity Funds


Focus Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities which the
advisor believes are undervalued compared to stocks of other companies in the
same industry. The Fund generally invests in companies with market
capitalizations of at least $1 billion. The Fund diversifies its assets by
industry in approximately the same weightings as those of the Russell 1000
Growth Index.

Future Technology Fund
The Fund's goal is to provide capital appreciation. The Fund pursues its goal
by investing at least 65% of its assets in common stocks of technology-related
companies. Technology-related companies are companies that develop,
manufacture, or distribute technology, communications and Internet-related
products and services. The Fund may also invest in the stocks of companies that
should benefit commercially from technological advances. The Fund invests in
both established companies and in new or unseasoned companies, including
companies making initial public offerings.

Equity Income Fund
The Fund's goal is to provide capital appreciation and current income. The Fund
pursues its goal by investing primarily in dividend-paying equity securities
and fixed income securities which are convertible into or exchangeable for
common stock. The advisor generally selects large, well-known companies that it
believes have favorable prospects for dividend growth and capital appreciation.
The Fund will seek to produce a current yield greater than the S&P 500.

Growth Opportunities Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in the equity securities of
companies with market capitalizations between $500 million and $10 billion. Its
style, which focuses on both growth prospects and valuation, is known as GARP
(Growth at a Reasonable Price) and seeks to produce attractive returns during
various market environments.

Institutional S&P 500 Index Equity Fund
The Fund's goal is to provide performance and income that is comparable to the
S&P 500. The S&P 500 is an index of 500 stocks that emphasizes large
capitalization companies. The Fund pursues its goal by normally holding a
substantial amount of its assets in securities of at least 400 of the stocks in
the S&P 500. The Fund is managed through the use of a "quantitative" or
"indexing" investment approach and tries to mirror the composition and
performance of the S&P 500 through statistical procedures. The Fund will try to
achieve a correlation between the performance of its portfolio and that of the
S&P 500 of at least .95. A correlation of 1.0 would mean that the changes in
the Fund's price mirror exactly the changes in the S&P 500.

International Equity Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing primarily in foreign securities, including American
Depositary Receipts. The Fund mostly invests in mature markets, but may also
invest in emerging markets. The Fund emphasizes companies with a market
capitalization of at least $250 million.

International Netnet Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by using a growth strategy to invest primarily in foreign companies
engaged in the Internet or Intranet related business. Under normal market
conditions, the Fund will invest at least 65% of its total assets in equity
securities of foreign companies that are engaged in the research, design,
development, manufacturing or engaged to a significant extent in the business
of distributing products, processes or services for use with the Internet or
Intranet related businesses.

Micro-Cap Equity Fund
The Fund's goal is to provide capital appreciation. The Fund pursues its goal
by investing at least 65% of its assets in equity securities of micro-
capitalization companies having market capitalizations within the range of the
companies in the Wilshire Micro-Cap Index. There is no limit on the length of
operating history for the companies in which the Fund may invest. The Fund may
invest without limit in initial public offerings of small capitalization
companies. In addition, the Fund may invest up to 35% of its assets in equity
securities of medium and larger capitalization companies, including initial
public offerings of such companies.

                                       13
<PAGE>

Multi-Season Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities. The Fund
generally invests in equity securities of companies with market capitalizations
over $1 billion. Its style, which focuses on both growth prospects and
valuation, is known as GARP (Growth at a Reasonable Price) and seeks to produce
attractive returns during various market environments.

NetNet Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing primarily in companies engaged in the Intranet and
Internet related business. Under normal market conditions, the Fund will invest
at least 65% of its total assets in equity securities of companies that are
engaged in research, design, development, manufacturing or engaged to a
significant extent in the business of distributing products, processes or
services for use with Internet or Intranet related businesses.

Real Estate Equity Investment Fund
The Fund's goal is to provide both capital appreciation and current income. The
Fund pursues its goal by investing at least 65% of its total assets in equity
securities of U.S. companies which are principally engaged in the real estate
industry.

Small-Cap Value Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of small
capitalization companies having market capitalizations within the range of the
companies in the Russell 2000 Index. The advisor will concentrate on companies
that it believes are undervalued.

Small Company Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing, under normal market conditions, at least 65% of its
assets in equity securities of small capitalization companies with market
capitalizations below $1.5 billion.

Framlington Emerging Markets Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of
companies in emerging market countries, as defined by the World Bank, the
International Finance Corporation, the United Nations or the European Bank for
Reconstruction and Development. It may also invest in foreign securities of
companies located in countries with mature markets.

Framlington Global Financial Services Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of U.S.
and foreign companies which are principally engaged in the financial services
industry and companies providing services primarily within the financial
services industry. The Fund focuses specifically on companies which are likely
to benefit from growth or consolidation in the financial services industry. The
Fund may invest in securities of companies located in countries with mature
markets and in those with emerging markets.

Framlington Healthcare Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing in equity securities of companies providing healthcare
and medical services and products worldwide. Currently, most of these companies
are located in the United States. The Fund's investments may include foreign
securities of companies located in countries with mature markets and in those
with emerging markets.

Framlington International Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of
issuers located in at least three foreign countries. The Fund may invest in
companies located in countries with mature markets and in those with emerging
markets.

Income Funds


Bond Fund
The Fund's primary goal is to provide a high level of current income. Its
secondary goal is capital appreciation. The Fund pursues its goals by investing
at least 65% of its total assets in a broad range of bonds and other fixed
income securities. The Fund's dollar-weighted average maturity will generally
range between six and fifteen years. The Fund will purchase only fixed income
securities that are rated
                                       14
<PAGE>

investment grade or better, or if unrated, are of comparable quality.

Intermediate Bond Fund
The Fund's goal is to provide a competitive rate of return which, over time,
exceeds the rate of inflation and the return provided by money market
instruments. The Fund pursues its goals by investing at least 65% of its total
assets in a broad range of bonds and other fixed income securities. The Fund's
dollar-weighted average maturity will generally range between three and eight
years. The Fund will purchase only fixed income securities that are rated
investment grade or better, or if unrated, are of comparable quality.

International Bond Fund
The Fund's goal is to realize a competitive total return through a combination
of current income and capital appreciation. The Fund pursues its goal by
investing at least 65% of its total assets in a broad range of bonds and other
fixed income securities of foreign issuers. The Fund will invest in the
securities of issuers in at least three foreign countries. The Fund's dollar-
weighted average maturity will generally range between three and fifteen years.
The Fund may invest a portion of its assets in domestic obligations, including
U.S. Government securities and obligations of domestic banks and corporations.

U.S. Government Income Fund
The Fund's goal is to provide high current income. The Fund pursues its goal by
investing at least 65% of its total assets in a broad range of U.S. Government
securities and repurchase agreements relating to such securities. The Fund's
dollar-weighted average maturity generally will range between six and fifteen
years.

Money Market Funds


Cash Investment Fund
The Fund's primary goal is to provide as high a level of current interest
income as is consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing in a broad range of U.S. dollar-
denominated money market instruments. The Fund invests solely in U.S. dollar-
denominated debt securities with remaining maturities of 13 months or less and
maintains an average dollar-weighted portfolio maturity of 90 days or less.

Institutional Money Market Fund
The Fund's primary goal is to provide as high a level of current interest
income as is consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing in a broad range of U.S. dollar-
denominated money market instruments. The Fund invests solely in U.S. dollar-
denominated debt securities with remaining maturities of 13 months or less and
maintains an average dollar-weighted portfolio maturity of 90 days or less.

U.S. Treasury Money Market Fund
The Fund's goal is to provide as high a level of current interest income as is
consistent with maintaining liquidity and stability of principal. The Fund
pursues its goal by investing its assets solely in short-term bills and notes,
issued by the U.S. Treasury (including "stripped" securities) and in repurchase
agreements relating to such obligations. The Fund invests solely in U.S.
dollar-denominated debt securities with remaining maturities of 13 months or
less and maintains an average dollar-weighted portfolio maturity of 90 days or
less.

Principal Investment Strategies and Risks

Foreign Investment Risk. Certain underlying funds may invest in foreign
securities. Foreign securities include investments in non-U.S. dollar-
denominated securities traded outside of the United States and dollar-
denominated securities of foreign issuers traded in the United States. Foreign
securities also include American Depository Receipts ("ADRs"), European
Depository Receipts ("EDRs") and Global Depository Receipts ("GDRs"). ADRs are
U.S. dollar-denominated receipts representing shares of foreign-based
corporations. ADRs are issued by U.S. banks or trust companies, and entitle the
holder to all dividends and capital gains that are paid out on the underlying
foreign shares. EDRs and GDRs are receipts issued by non-U.S. financial
institutions that often trade on foreign exchanges. They represent ownership in
an underlying foreign or U.S. security and are generally denominated in a
foreign currency.

  Special Risks. Foreign securities involve special risks and costs.
  Investment in the securities of foreign governments involves the risk that
  foreign governments may default on their obligations or may otherwise not
  respect the integrity of their debt.

                                       15
<PAGE>

  Investments in foreign securities may involve higher costs than investment
  in U.S. securities, including higher transaction and custody costs as well
  as the imposition of taxes by foreign governments. Foreign investments may
  also involve risks associated with the level of currency exchange rates,
  less complete financial information about the issuers, less market
  liquidity, more market volatility and political instability. Future
  political and economic developments, the possible imposition of withholding
  taxes on dividend income, the possible seizure or nationalization of
  foreign holdings, the possible establishment of exchange controls or
  freezes on the convertibility of currency, or the adoption of other
  governmental restrictions might adversely affect an investment in foreign
  securities. Additionally, foreign issuers may be subject to less stringent
  regulation, and to different accounting, auditing and recordkeeping
  requirements.

  Currency exchange rates may fluctuate significantly over short periods of
  time causing an underlying fund's net asset value to fluctuate as well. A
  decline in the value of a foreign currency relative to the U.S. dollar will
  reduce the value of a foreign currency-denominated security. To the extent
  that an underlying fund is invested in foreign securities while also
  maintaining currency positions, it may be exposed to greater combined risk.
  The underlying funds' respective net currency positions may expose them to
  risks independent of their securities positions.

  Additional risks are involved when investing in countries with emerging
  economies or securities markets. In general, the securities markets of
  these countries are less liquid, are subject to greater price volatility,
  have smaller market capitalizations and may have problems with securities
  registration and custody. In addition, because the securities settlement
  procedures are less developed in these countries, an underlying fund may be
  required to deliver securities before receiving payment and may also be
  unable to complete transactions during market disruptions. As a result of
  these and other risks, investments in these countries generally present a
  greater risk of loss to the Fund.

  A further risk of investing in foreign securities is the risk that an
  underlying fund may be adversely affected by the conversion of certain
  European currencies into the Euro. This conversion, which is underway, is
  scheduled to be completed in the year 2002. However, problems with the
  conversion process and delays could increase volatility in world capital
  markets and affect European capital markets in particular.

Investment Grade Credit Risk. A security is considered investment grade if, at
the time of purchase, it is rated:

 . BBB or higher by S&P;

 . Baa or higher by Moody's;

 . BBB or higher by Duff & Phelps; or

 . BBB or higher by Fitch.

A security will be considered investment grade if it receives one of the above
ratings, even if it receives a lower rating from other rating organizations.

  Investment Strategy. Except as stated in the next section, fixed income and
  convertible securities purchased by the underlying funds will generally be
  rated at least investment grade. The underlying funds may also invest in
  unrated securities if the advisor or sub-advisor believes they are
  comparable in quality.

  Special Risks. Although securities rated "BBB" by S&P, Duff & Phelps or
  Fitch, or "Baa" by Moody's are considered investment grade, they have
  certain speculative characteristics. Therefore, they may be subject to a
  higher risk of default than obligations with higher ratings. Subsequent to
  its purchase by an underlying fund, a rated security may cease to be rated
  or its rating may be reduced below the minimum rating required for purchase
  by the underlying fund. The adviser or sub-advisor will consider such an
  event in determining whether the underlying fund should continue to hold
  the security.

Investments in Financial Services Companies by Framlington Global Financial
Services Fund. Financial services companies are subject to extensive
governmental regulation which may limit

                                       16
<PAGE>

both the financial commitments they can make, and the interest rates and fees
they can charge. Insurance companies may be subject to severe price
competition.

Investments in the Healthcare Industry by Framlington Healthcare Fund. The
Framlington Healthcare Fund will invest most of its assets in the healthcare
industry, which is particularly affected by rapidly changing technology and
extensive government regulation, including cost containment measures.

Investments in the Real Estate Industry by Real Estate Equity Investment
Fund. The Real Estate Equity Investment Fund will invest primarily in the real
estate industry and may invest more than 25% of its assets in any one sector of
the real estate industry. As a result, the Real Estate Equity Investment Fund
will be particularly vulnerable to declines in real estate prices and new
construction rates.

Investments by the NetNet Fund. The NetNet Fund will invest primarily in
companies engaged in Internet and Intranet related activities. The value of
such companies is particularly vulnerable to rapidly changing technology,
extensive government regulation and relatively high risks of obsolescence
caused by scientific and technological advances. The value of the Fund's shares
may fluctuate more than shares of a fund investing in a broader range of
industries.

Investments in the Technology Industry by Future Technology Fund. The Future
Technology Fund will invest most of its assets in the technology industry,
which is particularly affected by rapidly changing technology product cycles,
government regulation and competition. Technology stocks, especially those of
smaller, less-seasoned companies, tend to be more volatile than the overall
market.

Short-Term Trading. The underlying funds may engage in short-term trading,
including initial public offerings.

  Special Risks. A high rate of portfolio turnover (100% or more) could
  produce higher trading costs and taxable distributions, which could detract
  from a Fund's performance.

Defensive Investing. Each Fund and underlying fund (except the Index 500 Fund)
may invest all or any portion of its assets in short-term obligations as a
temporary defensive measure in response to adverse market or economic
conditions.

  Special Risks. If a Fund or one or more underlying funds adopts a defensive
  strategy, the Fund may not achieve its investment objective.

Other Investment Strategies and Risks Of The Funds and Underlying Funds

Asset-Backed Securities. Asset-backed securities are debt securities backed by
mortgages, installment sales contract and credit card receivables. The
securities are sponsored by entities such as government agencies, banks,
financial companies and commercial or industrial companies. In effect, these
securities "pass through" the monthly payments that individual borrowers make
on their mortgage or other assets net of any fees paid to the issuers. Examples
of these include guaranteed mortgage pass-through certificates, collateralized
mortgage obligations ("CMOs") and real estate mortgage investment conduits
("REMICs").

  Special Risks. In addition to credit and market risk, asset-backed
  securities involve repayment risk because the underlying assets (loans) may
  be prepaid at any time. The value of these securities may also change
  because of actual or perceived changes in the creditworthiness of the
  originator, the servicing agent, the financial institution providing the
  credit support, or the counterparty. Like other fixed income securities,
  when interest rates rise the value of an asset-backed security generally
  will decline. However, when interest rates decline, the value of an asset-
  backed security with prepayment features may not increase as much as that
  of other fixed income securities. In addition, non-mortgage asset-backed
  securities involve certain risks not presented by mortgage-backed
  securities. Primarily, these securities do not have the benefit of the same
  security interest in the underlying collateral.

Borrowing and Reverse Repurchase Agreements. The Funds and underlying funds can
borrow money from banks and enter into reverse repurchase agreements with banks
and other financial

                                       17
<PAGE>

institutions. Reverse repurchase agreements involve the sale of securities held
by a Fund (or underlying fund) subject to the Fund's (or underlying fund)
agreement to repurchase them at a mutually agreed upon date and price
(including interest).

  Investment Strategy. Each Fund (or underlying fund) may borrow money in an
  amount up to 5% of its assets for temporary emergency purposes and in an
  amount up to 33 1/3% of its assets to meet redemptions. This is a
  fundamental policy which can be changed only by shareholders.

  Special Risks. Borrowings and reverse repurchase agreements by a Fund (or
  underlying fund) may involve leveraging. If the securities held by the Fund
  (or underlying fund) decline in value while these transactions are
  outstanding, the Fund's net asset value will decline in value by
  proportionately more than the decline in value of the securities. In
  addition, reverse repurchase agreements involve the risks that the interest
  income earned by the Fund (or underlying fund) (from the investment of the
  proceeds) will be less than the interest expense of the transaction, that
  the market value of the securities sold by the Fund (or underlying fund)
  will decline below the price the Fund (or underlying fund) is obligated to
  pay to repurchase the securities, and that the securities may not be
  returned to the Fund (or underlying fund).

Derivative Risk. Some underlying funds may purchase certain "derivative"
instruments. Derivatives are financial contracts whose value is based on an
underlying security, a currency exchange rate, an interest rate or a market
index. Many types of instruments representing a wide range of potential risks
and rewards are derivatives, including futures contracts options on futures
contracts, options, forward currency contracts and structured debt obligations
(including collateralized mortgage obligations and other types of asset-backed
securities, "stripped" securities and various floating rate instruments).

  Investment Strategy. Derivatives can be used for hedging (attempting to
  reduce risk by offsetting one investment position with another) or
  speculation (taking a position in the hope of increasing return). The
  underlying funds may, but are not required to, use derivatives for hedging
  purposes or for the purpose of remaining fully invested or maintaining
  liquidity. The underlying funds will not use derivatives for speculative
  purposes.

  Special Risks. The use of derivative instruments exposes a Fund to
  additional risks and transaction costs. Risks of derivative instruments
  include: (1) the risk that interest rates, securities prices and currency
  markets will not move in the direction that a portfolio manager
  anticipates; (2) imperfect correlation between the price of derivative
  instruments and movements in the prices of the securities, interest rates
  or currencies being hedged; (3) the fact that skills needed to use these
  strategies are different than those needed to select portfolio securities;
  (4) the possible absence of a liquid secondary market for any particular
  instrument and possible exchange imposed price fluctuation limits, either
  of which may make it difficult or impossible to close out a position when
  desired; (5) the risk that adverse price movements in an instrument can
  result in a loss substantially greater than the underlying fund's initial
  investment in that instrument (in some cases, the potential loss is
  unlimited); (6) particularly in the case of privately-negotiated
  instruments, the risk that the counterparty will not perform its
  obligations, which could leave the underlying fund worse off than if it had
  not entered into the position; and (7) the inability to close our certain
  hedged positions to avoid adverse tax consequences.

Forward Currency Exchange Contracts. A forward currency exchange contract is an
obligation to exchange one currency for another on a future date at a specified
exchange rate.

  Investment Strategy. Forward currency exchange contracts may be used for
  hedging purposes and to help reduce the risks and volatility caused by
  changes in foreign currency exchange rates. Foreign currency exchange
  contracts will be used at the discretion of the advisor or sub-advisor, and
  no underlying fund is required to hedge its foreign currency positions.

  Special Risks. Forward currency contracts are privately negotiated
  transactions, and can have substantial price volatility. When used for
                                       18
<PAGE>

  hedging purposes, they tend to limit any potential gain that may be
  realized if the value of an underlying fund's foreign holdings increases
  because of currency fluctuations.

Futures Contracts and Related Options. A futures contract is a type of
derivative instrument that obligates the holder to buy or sell an asset in the
future at an agreed upon price. When an underlying fund purchases an option on
a futures contract, it has the right to assume a position as a purchaser or
seller of a futures contract at a specified exercise price during the option
period. When an underlying fund sells an option on a futures contract, it
becomes obligated to purchase or sell a futures contract if the option is
exercised.

  Investment Strategy. The underlying funds may invest in futures contracts
  and options on futures contracts on domestic or foreign exchanges or boards
  of trade. These instruments may be used for hedging purposes, to maintain
  liquidity to meet potential shareholder redemptions, to invest cash
  balances or dividends, or to minimize trading costs.

  An underlying fund will not purchase or sell a futures contract unless,
  after the transaction, the sum of the aggregate amount of margin deposits
  on its existing futures positions and the amount of premiums paid for
  related options used for non-hedging purposes is 5% or less of the
  underlying fund's total assets.

  Special Risks. Futures contracts and related options present the following
  risks: imperfect correlation between the change in market value of an
  underlying fund's securities and the price of futures contracts and
  options; the possible inability to close a futures contract when desired;
  losses due to unanticipated market movements, which are potentially
  unlimited; and the possible inability of the advisor or sub-advisor to
  correctly predict the direction of securities prices, interest rates,
  currency exchange rates and other economic factors.

Illiquid Securities. Illiquid securities include private placements or other
securities that are subject to legal or contractual restrictions on resale or
for which there is no readily available market.

  Investment Strategy. Each underlying fund may invest up to 15% of its net
  assets in securities that are illiquid.

  Special Risks. To the extent that an underlying fund invests in illiquid
  securities, the underlying fund risks not being able to sell the securities
  at the time and the price that it would like. The underlying fund may have
  to lower the price, sell substitute securities or forego an investment
  opportunity, each of which may cause a loss to the underlying fund.

Options. An option is a type of derivative instrument that gives the holder the
right (but not the obligation) to buy (a "call") or sell (a "put") an asset in
the future at an agreed upon price prior to the expiration date of the option.

  Investment Strategy. The underlying funds may write (sell) covered call
  options, buy put options, buy call options and write secured put options
  for hedging purposes. Options may relate to particular securities, foreign
  or domestic securities indices, financial instruments or foreign
  currencies.

  Special Risks. The value of options can be highly volatile, and their use
  can result in loss if the advisor or sub-advisor is incorrect in its
  expectation of price fluctuations. The successful use of options for
  hedging purposes also depends in part on the ability of the advisor or sub-
  advisor to predict future price fluctuations and the degree of correlation
  between the options and securities markets.

Securities Lending. In order to generate additional income, each underlying
fund may lend securities on a short-term basis to qualified institutions. By
reinvesting any cash collateral it receives in these transactions, the
underlying fund could realize additional income gains or losses.

  Investment Strategy. Securities lending may represent no more than 25% of
  the value of an underlying fund's total assets (including the loan
  collateral).

  Special Risks. The main risk when lending securities is that if the
  borrower fails to return the securities or the invested collateral has
  declined in value, the underlying fund could lose money.

Stripped Securities. These securities are issued by the U.S. Government (or
agency or instrumentality), foreign governments or banks and other financial
institutions. They entitle the holder to receive either interest payments or
principal payments that have been "stripped" from a debt obligation. These

                                       19
<PAGE>

obligations include participations in trusts that hold U.S. Treasury or agency
securities.

  Special Risks. Stripped securities are very sensitive to changes in
  interest rates and to the rate of principal repayments. A rapid or
  unexpected increase in mortgage prepayments could severely depress the
  price of certain stripped mortgage-backed securities and adversely affect
  an underlying fund's total returns.

Temporary Investments. Short-term obligations refer to U.S. Government
securities, high-quality money market instruments and repurchase agreements
with maturities of 13 months or less. Generally, these obligations are
purchased to provide stability and liquidity to a Fund or underlying fund.

  Investment Strategy. Each Fund or underlying fund may invest a portion of
  its assets in short-term obligations pending investment or to meet
  anticipated redemption requests.

  Special Risks. A Fund or underlying fund may not achieve its investment
  objective when its asset are invested in short-term obligations.

Variable and Floating Rate Instruments. Variable and floating rate instruments
have interest rates that are periodically adjusted either at set intervals or
that float at a margin above a generally recognized index rate. These
instruments include variable amount master demand notes.

Special Risks. Variable and floating rate instruments are subject to the same
risks as fixed income investments, particularly interest rate and credit risk.
Because there is no active secondary market for certain variable and floating
rate instruments, they may be more difficult to sell if the issuer defaults on
its payment obligations or during periods when an underlying fund is not
entitled to exercise its demand rights. As a result, the underlying fund could
suffer a loss with respect to these instruments.

Zero Coupon Bonds. These are securities issued at a discount from their face
value because interest payments are typically postponed until maturity.

  Special Risks. The market prices of zero coupon bonds generally are more
  volatile than the market prices of interest-bearing securities and are
  likely to respond to a greater degree to changes in interest rates than
  interest-bearing securities having similar maturities and credit quality.
  An underlying fund's investments in zero coupon bonds may require the
  underlying fund to sell some of its portfolio securities to generate
  sufficient cash to satisfy certain income distribution requirements.

Disclaimers

The Institutional S&P 500 Index Equity Fund is not sponsored, endorsed, sold or
promoted by S&P, nor does S&P guarantee the accuracy and/or completeness of the
S&P 500(R) Index or any data included therein. S&P makes no warranty, express
or implied, as to the results to be obtained by the Fund, owners of the Fund,
any person or any entity from the use of the S&P 500(R) Index or any data
included therein. S&P makes no express or implied warranties and expressly
disclaims all such warranties of merchantability or fitness for a particular
purpose for use with respect to the S&P(R) Index or any data included therein.
                                       20
<PAGE>

Your Investment
-------------------------------------------------------------------------------

This section describes how to do business with the Funds.

How To Reach The Funds

By telephone: 1-800-438-5789
           Call for shareholder services.

By mail:   The Munder Funds
           c/o PFPC Global Fund Services
           P.O. Box 60428
           King of Prussia, PA 19406-0428.

Purchasing Shares

Purchase Price of Shares
Class A shares of a Fund are sold at the NAV next determined after a purchase
order is received in proper form plus any applicable sales charge. Please see
"Distribution Arrangements" below for information about sales charges.

Class B shares of a Fund are sold at NAV next determined after a purchase
order is received in proper form.

Broker-dealers or financial advisors (other than the Funds' distributor) may
charge you additional fees for shares you purchase through them.

Policies for Purchasing Shares

Investment minimums
 . Initial: $250
 . Subsequent: $50
 . Automatic Investment Plan: $50

Purchases over $250,000 must be for Class A shares.

Timing of orders
Purchase orders must be received by the Funds' distributor, transfer agent or
authorized dealer before the close of regular trading on the New York Stock
Exchange (normally, 4:00 p.m. Eastern time). Purchase orders received after
that time will be accepted as of the next business day.

Methods for Purchasing Shares
Investors may purchase shares:

 . By Broker and/or Financial Advisor. Any broker or financial advisor
  authorized by the Funds' distributor can sell you shares of the Funds.
  Please note that brokers or financial advisors may charge you fees for their
  services.

 . By Mail. You may open an account by completing, signing and mailing the
  attached account application form and a check or other negotiable bank draft
  (payable to The Munder Funds) for $250 or more to: The Munder Funds, c/o
  PFPC Global Fund Services, P.O. Box 60428, King of Prussia, Pennsylvania
  19406-0428. Be sure to specify on your account application form the class of
  shares being purchased. If the class is not specified, your purchase will
  automatically be invested in Class A shares. For additional investments,
  send a letter stating the Fund and share class you wish to purchase, your
  name and your account number with a check for $50 or more to the address
  listed above. We do not accept third party checks.

 . By Wire. To open a new account, you should call the Funds at (800) 438-5789
  to obtain an account number and complete wire instructions prior to wiring
  any funds. Within seven days of purchase, you must send a completed account
  application form containing your certified taxpayer identification number to
  the Funds' transfer agent at The Munder Funds, c/o PFPC Global Fund
  Services, P.O. Box 60428, King of Prussia, Pennsylvania 19406-0428. Wire
  instructions must state the Fund name, share class, your registered name and
  your account number. Your bank wire should be sent through the Federal
  Reserve Bank Wire System to:

  Boston Safe Deposit and Trust Company
  Boston, MA
  ABA# 011001234
  DDA# 16-798-3
  Account No.:

 You may make additional investments at any time using the wire procedures
 described above. Note that banks may charge fees for transmitting wires.

 . You may purchase shares through the Automatic Investment Plan.

 . You may purchase shares through the Reinvestment Privilege.

                                      21
<PAGE>

Exchanging Shares

Policies for Exchanging Shares
 . You may exchange Fund shares for shares of the same class of other Munder
  Funds based on their relative net asset values.

 . You may acquire shares of Funds by exchanging shares of the same class of
  other Munder Funds.

 . You may also acquire Class A shares of the Funds by exchanging Class K shares
  of other Munder Funds. Class A shares of the Funds acquired in this manner
  may be exchanged for Class K shares of other Munder Funds, but they may not
  be exchanged for Class A shares of other Munder Funds.

 . Class A shares of a Munder money market fund that were (1) acquired through
  the use of the exchange privilege and (2) can be traced back to a purchase of
  shares in one or more Munder Funds for which a sales charge was paid, can be
  exchanged for Class A shares of a Fund.

 . Class B shares will continue to age from the date of the original purchase
  and will retain the same CDSC rate as they had before the exchange.

 . You must meet the minimum purchase requirements for the Munder Fund of that
  you purchase by exchange.

 . If you are exchanging into shares of a Munder Fund with a higher sales
  charge, you must pay the difference at the time of the exchange.

 . A share exchange is a taxable event and, accordingly, you may realize a
  taxable gain or loss.

 . Before making an exchange request, read the prospectus of the Munder Fund you
  wish to purchase by exchange. You can obtain a prospectus for any Munder Fund
  by contacting your broker or calling the Munder Funds at (800) 438-5789.

 . Brokers or financial advisors may charge you a fee for handling exchanges.

 . We may change, suspend or terminate the exchange privilege at any time. You
  will be given notice of any material modifications except where notice is not
  required.

Methods for Exchanging Shares
 . Exchanges By Telephone. You may give exchange instructions by telephone to
  the Funds at (800) 438-5789. You may not exchange shares by telephone if you
  hold share certificates. We reserve the right to reject any telephone
  exchange request and to place restrictions on telephone exchanges.

 . Exchanges By Mail. You may send exchange orders to your broker, your
  financial advisor or you may send them directly to the Funds' transfer agent
  at The Munder Funds, c/o PFPC Global Fund Services, P.O. Box 60428, King of
  Prussia, Pennsylvania 19406-0428.

Redeeming Shares

Redemption Price
We will redeem shares at the NAV next determined after we receive the
redemption request in proper form. We will reduce the amount you receive by the
amount of any applicable contingent deferred sales charge (CDSC).

Please see "Distribution Arrangements" below for information about CDSCs.

Policies for Redeeming Shares
 . For your protection, a medallion signature guarantee is required for the
  following redemption requests: (a) redemption proceeds greater than $50,000;
  (b) redemption proceeds not being made payable to the recordowner of the
  account; (c) redemption proceeds not being mailed to the address of record on
  the account; (d) if the redemption proceeds are being transferred to another
  Munder Fund account with a different registration; (e) change in ownership or
  registration of the account or (f) changes to banking information without a
  voided check being supplied. When a Fund requires a signature guarantee, a
  medallion signature guarantee must be provided. A medallion signature
  guarantee may be obtained from a domestic bank or trust company, broker,
  dealer, clearing agency, savings association, or other financial institution
  which is participating in a medallion program recognized by the Securities
  Transfer Association. The three recognized medallion programs are Securities
  Transfer Agents Medallion Program (STAMP), Stock Exchanges Medallion Program
  (SEMP) and

                                       22
<PAGE>

 New York Stock Exchange, Inc. Medallion Signature Program (NYSE MSP).
 Signature guarantees from financial institutions which are not participating
 in one of these programs will not be accepted.

Methods for Redeeming Shares
You may redeem shares of the Funds in several ways:

 . By Mail. You may mail your redemption request to: The Munder Funds, c/o PFPC
  Global Fund Services, P.O. Box 60428, King of Prussia, Pennsylvania 19406-
  0428. The redemption request should state the name of the Fund, share class,
  account number, amount of redemption, account name and where to send the
  proceeds. All account owners must sign.

 . By Telephone. You can redeem your shares by contacting your broker, your
  financial advisor or calling the Funds at (800) 438-5789. There is no minimum
  requirement for telephone redemptions.

 If you are redeeming at least $1,000 of shares and you have authorized
 expedited redemption on your account application form, simply call the Funds
 prior to 4:00 p.m. (Eastern time), and request the redemption proceeds be
 mailed to the commercial bank, registered broker-dealer or financial advisor
 you designated on your account application form. We will send your redemption
 proceeds to you on the next business day. We reserve the right at any time to
 change or impose fees for this expedited redemption procedure.

 During periods of unusual economic or market activity, you may experience
 difficulties or delays in effecting telephone redemptions. In such cases you
 should consider placing your redemption request by mail.

 . You may redeem shares through the Automatic Withdrawal Plan.

Additional Policies For Purchases, Exchanges And Redemptions

 . We consider orders to be in "proper form" when all required documents are
  properly completed, signed and received.

 . The Funds reserve the right to reject any purchase order.

 . At any time, the Funds may change any of their purchase or redemption
  procedures, and may suspend the sale of their shares.

 . The Funds may delay sending redemption proceeds for up to seven days, or
  longer if permitted by the Securities and Exchange Commission.

 . We will typically send redemption amounts to you within seven business days
  after you redeem shares. We may hold redemption amounts from the sale of
  shares you purchased by check until the purchase check has cleared, which may
  be as long as 15 days.

 . To limit the Funds' expenses, we no longer issue share certificates.

 . A Fund may temporarily stop redeeming shares if:

  . the New York Stock Exchange is closed;

  . trading on the New York Stock Exchange is restricted;

  . an emergency exists and the Fund cannot sell its assets or accurately
    determine the value of its assets; or

  . the Securities and Exchange Commission orders the Funds to suspend
    redemptions.

 . The Funds reserve the right to make payment for redeemed shares wholly or in
  part by giving the redeeming shareholder portfolio securities. The
  shareholder may pay transaction costs to dispose of these securities.

 . We record all telephone calls for your protection and take measures to
  identify the caller. As long as the Funds' transfer agent takes reasonable
  measures to authenticate telephone requests on an investor's account, neither
  the Funds, the Funds' distributor nor the transfer agent will be held
  responsible for any losses resulting from unauthorized transactions.

 . We may redeem your account if its value falls below $250 as a result of
  redemptions (but not as a result of a decline in NAV). You will be notified
  in writing and allowed 60 days to increase the value of your account to the
  minimum investment level.

 . If you purchased shares directly from the Funds, the Funds' transfer agent
  will send you confirmations of the opening of an account and of all
  subsequent purchases, exchanges or

                                       23
<PAGE>

 redemptions in the account. If your account has been set up by a broker,
 financial advisor or other investment professional, account activity will be
 detailed in their statements to you.

 . The exchange privilege is not intended as a vehicle for short-term trading.
  Excessive exchange activity may interfere with portfolio management and have
  an adverse effect on all shareholders. Each Fund and its distributor reserve
  the right to refuse any purchase or exchange request that could adversely
  affect the fund or its operations, including those from any individual or
  group who, in the Fund's view, is likely to engage in excessive trading or
  any order considered market-timing activity. If a Fund refuses a purchase or
  exchange request and the shareholder deems it necessary to redeem their
  account, any CDSC as permitted by the prospectus will be applicable.

 Additionally, in no event will any Fund permit more than six exchanges into
 or out of a Fund in any one-year period per account, tax identification
 number, social security number or related investment group. The Munder Money
 Market Funds are exempt from this policy.

Shareholder Privileges

Automatic Investment Plan (AIP). Under the AIP you may arrange for periodic
investments in a Fund through automatic deductions from a checking or savings
account. To enroll in the AIP you should complete the AIP application form or
call the Funds at (800) 438-5789. The minimum pre-authorized investment amount
is $50. You may discontinue the AIP at any time. We may discontinue the AIP on
30 days' written notice to you.

Reinvestment Privilege. For 60 days after you sell shares of a Fund, you may
reinvest your redemption proceeds in shares of the same class of the SAME Fund
at NAV. Any CDSC you paid on the amount you are reinvesting will be credited to
your account. You may use this privilege once in any given twelve-month period
with respect to your shares of a Fund. You, your broker or financial advisor
must notify the Funds' transfer agent in writing at the time of reinvestment in
order to eliminate the sales charge on your reinvestment.

Automatic Withdrawal Plan (AWP). If you have an account value of $2,500 or more
in a Fund, you may redeem shares on a monthly, quarterly, semi-annual or annual
basis. The minimum withdrawal is $50. We usually process withdrawals on the
20th day of the month and promptly send you your redemption amount. You may
enroll in the AWP by completing the AWP application form available through the
Funds' transfer agent. To participate in the AWP you must have your dividends
automatically reinvested and may not hold share certificates. You may change or
cancel the AWP at any time upon notice to the Funds' transfer agent. You should
not buy Class A shares (and pay a sales charge) while you participate in the
AWP and you must pay any applicable CDSC when you redeem shares.

                                       24
<PAGE>

Distribution Arrangements
--------------------------------------------------------------------------------
Share Class Selection

Each Fund offers Class A and Class B shares. Each class has its own cost
structure, allowing you to choose the one that best meets your requirements
given the amount of your purchase and the intended length of your investment.
You should consider both ongoing annual expenses and initial sales charge or
CDSC in estimating the costs of investing in a particular class of shares.

Class A shares
 . Front end sales charge. There are several ways to reduce these sale charges.

 . Lower annual expenses than Class B shares.

Class B shares

 . No front end sales charge. All your money goes to work for you right away.

 . Higher annual expenses than Class A shares.

 . A CDSC on shares you sell within six years of purchase.

 . Automatic conversion to Class A shares approximately six years after
  issuance, thus reducing future annual expenses.

 . CDSC is waived for certain redemptions.

Each Fund also issues Class Y shares, which have different sales charges,
expense levels and performance. Class Y shares are available to limited types
of investors. Call (800) 438-5789 to obtain more information about Class Y
shares.

Applicable Sales Charge--Class A Shares

You can purchase Class A shares at NAV plus an initial sales charge. The sales
charge as a percentage of your investment decreases as the amount you invest
increases. The current sales charge rates and commissions paid to selected
dealers as follows:

<TABLE>
<CAPTION>
                                                  Sales Charge as     Dealer
                                                  a Percentage of   Reallowance
                                                  ----------------     as a
                                                              Net  Percentage of
                                                     Your    Asset the Offering
                                                  Investment Value     Price
                                                  ---------- ----- -------------
<S>                                               <C>        <C>   <C>
Less than $25,000................................   5.50%    5.82%         5.00%
$25,000 but less than $50,000....................   5.25%    5.54%         4.75%
$50,000 but less than $100,000...................   4.50%    4.71%         4.00%
$100,000 but less than $250,000..................   3.50%    3.63%         3.25%
$250,000 but less than $500,000..................   2.50%    2.56%         2.25%
$500,000 but less than $1,000,000................   1.50%    1.52%         1.25%
$1,000,000 or more...............................   None*    None* (see below)**
</TABLE>
--------
   * No initial sales charge applies on investments of $1 million or more.
     However, a CDSC of 1% is imposed on certain redemptions within one year of
     purchase.
  ** The Distributor will pay a 1% commission to dealers who initiate and are
     responsible for purchases of $1 million or more.

Sales Charge Waivers--General
We will waive the initial sales charge on Class A shares for the following
types of purchasers (the word "advisor" in the following refers to Munder
Capital Management the advisor to the Munder Funds):

1. individuals with an investment account or relationship with the advisor;

2. full-time employees and retired employees of the advisor or its affiliates,
employees of the Funds' service providers and immediate family members of such
persons;

3. registered broker-dealers or financial advisors that have entered into
selling agreements with the Fund's distributor, for their own accounts or for
retirement plans for their employees or sold to registered representatives for
full-time employees (and their families) that certify to the distributor at the
time of purchase that such purchase is for their own account (or for the
benefit of their families);

4. certain qualified employee benefit plans as described below;

5. individuals who reinvest a distribution from a qualified retirement plan for
which the advisor serves as investment advisor;

                                       25
<PAGE>

6. individuals who reinvest the proceeds of redemptions from Class Y Shares of
another Munder Fund, within 60 days of redemption;

7. banks and other financial institutions that have entered into agreements
with the Munder Funds to provide shareholder services for customers (including
customers of such banks and other financial institutions, and the immediate
family members of such customers);

8. fee-based financial planners or employee benefit plan consultants acting for
the accounts of their clients;

9. employer sponsored retirement plans which are administered by Universal
Pensions, Inc. (UPI Plans); and

10. employer sponsored 401(k) plans that are administered by Merrill Lynch
Group Employee Services (Merrill Lynch Plans) which meet the criteria described
below under "Sales Charge Waivers--Qualified Employer Sponsored Retirement
Plans."

Sales Charge Waivers--Qualified Employer Sponsored Retirement Plans
We will waive the initial sales charge on purchases of Class A shares by
employer sponsored retirement plans that are qualified under Section 401(a) or
Section 403(b) of the Internal Revenue Code (each, a Qualified Employee Benefit
Plan) and that (1) invest $1,000,000 or more in Class A shares offered by The
Munder Funds or (2) have at least 75 eligible plan participants.

In addition, we will waive the CDSC of 1% charged on certain redemptions within
one year of purchase for Qualified Employee Benefit Plan purchases that meet
the above criteria. A 1% commission will be paid by the distributor to dealers
and other entities (as permitted by applicable Federal and state law) who
initiate and are responsible for Qualified Employee Benefit Plan purchases that
meet the above criteria. This sales charge waiver does not apply to Simplified
Employee Pension Plans (SEPs), Individual Retirement Accounts (IRAs), UPI Plans
and Merrill Lynch Plans.

UPI Plans. We also will waive (i) the initial sales charge on Class A shares
purchased by UPI Plans for employees participating in an employer-sponsored or
administered retirement program operating under Section 408A of the Internal
Revenue Code and (ii) the CDSC of 1% imposed on certain redemptions within one
year of purchase for these accounts. The distributor will pay a 1% commission
to dealers and others (as permitted by applicable Federal and state law) who
initiate and are responsible for UPI Plan purchases.

Merrill Lynch Plans. We will waive the initial sales charge for all investments
by Merrill Lynch Plans if

(i) the Plan is recordkept on a daily valuation basis by Merrill Lynch Group
    Employee Services (Merrill Lynch) and, on the date the plan sponsor signs
    the Merrill Lynch Recordkeeping Service Agreement, the Plan has $3 million
    or more in assets invested in broker/dealer funds not advised or managed by
    Merrill Lynch Asset Management, L.P. (MLAM) that are made available
    pursuant to a Services Agreement between Merrill Lynch and the Fund's
    distributor and in funds advised or managed by MLAM (collectively, the
    Applicable Investments); or

(ii) the Plan is recordkept on a daily valuation basis by an independent
     recordkeeper whose services are provided through a contract or alliance
     arrangement with Merrill Lynch, and on the date the plan sponsor signs the
     Merrill Lynch Recordkeeping Service Agreement, the Plan has $3 million or
     more in assets, excluding money market funds, invested in Applicable
     Investments; or

(iii) the Plan has 500 or more eligible employees, as determined by the Merrill
      Lynch plan conversion manager, on the date the plan sponsor signs the
      Merrill Lynch Recordkeeping Service Agreement.

For further information on sales charge waivers, call (800) 438-5789.

Sales Charge Reductions
You may qualify for reduced sales charges in the following cases:

 . Letter of Intent. If you intend to purchase at least $25,000 of Class A
  shares of the Funds you may wish to complete the Letter of Intent section of
  your account application form. By doing so, you agree to invest a certain
  amount over a 13-month period. You would pay a sales charge on any Class A
  shares you purchase during the 13

                                       26
<PAGE>

 months based on the total amount to be invested under the Letter of Intent.
 You can apply any investments you made in any of the Munder Funds during the
 preceding 90-day period toward fulfillment of the Letter of Intent (although
 there will be no refund of sales charges you paid during the 90-day period).
 You should inform the Funds' transfer agent that you have a Letter of Intent
 each time you make an investment.

 You are not obligated to purchase the amount specified in the Letter of
 Intent. If you purchase less than the amount specified, however, you must pay
 the difference between the sales charge paid and the sales charge applicable
 to the purchases actually made. The Funds' custodian will hold such amount in
 escrow. The custodian will pay the escrowed funds to your account at the end
 of the 13 months unless you do not complete your intended investment.

 . Quantity Discounts. You may combine purchases of Class A shares that are made
  by you, your spouse, your children under age 21 and your IRA when calculating
  the sales charge. You must notify your broker, your financial advisor or the
  Funds' transfer agent to qualify.

 . Right of Accumulation. You may add the value of any other Class A shares of
  non-money market Munder Funds you already own to the amount of your next
  Class A share investment for purposes of calculating the sales charge at the
  time of the current purchase. You must notify your broker, your financial
  advisor or the Funds' transfer agent to qualify.

Certain brokers or financial advisors may not offer these programs or may
impose conditions or fees to use these programs. You should consult with your
broker or your financial advisor prior to purchasing the Funds' shares.

For further information on sales charge reductions, call (800) 438-5789.

Cdsc

You pay a CDSC when you redeem:

 . Class A shares that were bought as part of an investment of at least $1
  million within one year of buying them;

 . Class B shares within six years of buying them.

These time periods include the time you held Class B shares of another Munder
Fund which you may have exchanged for Class B shares of the Fund you are
redeeming.

The CDSC schedule for Class B shares is set forth below. Consult the Statement
of Additional Information for the CDSC schedule for Class B shares acquired
through an exchange of shares purchased on or before June 27, 1995. The CDSC is
based on the original NAV at the time of your investment or the NAV at the time
of redemption, whichever is lower. Shares purchased through reinvestment of
distributions are not subject to CDSC.

<TABLE>
<CAPTION>
Years Since Purchase                                                       CDSC
--------------------                                                       -----
<S>                                                                        <C>
First..................................................................... 5.00%
Second.................................................................... 4.00%
Third..................................................................... 3.00%
Fourth.................................................................... 3.00%
Fifth..................................................................... 2.00%
Sixth..................................................................... 1.00%
Seventh and thereafter.................................................... 0.00%
</TABLE>

If you sell some but not all of your shares, certain shares not subject to CDSC
(i.e., shares purchased with reinvested dividends) will be redeemed first,
followed by shares subject to the lowest CDSC (typically shares held for the
longest time).

For example, assume an investor purchased 1,000 shares at $10 a share (for a
total cost of $10,000). Three years later, the shares have a net asset value of
$12 per share and during that time, the investor acquired 100 additional shares
through dividend reinvestment. If the investor then makes one redemption of 500
shares (resulting in proceeds of $6,000, 500 shares x $12 per share), the first
100 shares redeemed will not be subject to the CDSC because they were acquired
through reinvestment of dividends. With respect to the remaining 400 shares
redeemed, the CDSC is charged at $10 per share (because the original purchase
price of $10 per share is lower than the current net asset value of $12 per
share). Therefore, only $4,000 of the $6,000 such investor received from
selling his or her shares will be subject to the CDSC, at a rate of 3.00% (the
applicable rate in the third year after purchase).

At the time of purchase of Class B shares, the Funds' distributor pays sales
commissions of 4.00% of the purchase price to brokers that initiate and are
responsible for purchases of such Class B shares.

                                       27
<PAGE>

CDSC Waivers
We will waive the CDSC payable upon redemptions for:

 . redemptions made within one year after the death of a shareholder or
  registered joint owner;

 . minimum required distributions made from an IRA or other retirement plan
  account after you reach age 70 1/2;

 . involuntary redemptions made by the Fund;

 . redemptions limited to 10% per year of an account's net asset value if taken
  by Systematic Withdrawal Plan ("SWP"). For example, if your balance on
  December 31st is $10,000 you can redeem up to $1,000 that following year free
  of charge through SWP.

We will waive the CDSC payable upon redemptions of shares which you purchased
after December 1, 1998 (or acquired through an exchange of shares of another
Munder Fund purchased after December 1, 1998) for:

 . redemptions made from an IRA or other individual retirement plan account
  established through Comerica Securities, Inc. after you reach age 59 1/2 and
  after the eighteen month anniversary of the purchase of Fund shares.

Consult the Statement of Additional Information for Class B CDSC waivers which
apply when you redeem shares acquired through an exchange of shares of another
Munder Fund purchased on or before June 27, 1995.

We will waive the CDSC for Class B shares for all redemptions by Merrill Lynch
Plans if:

(i) the Plan is recordkept on a daily valuation basis by Merrill Lynch; or

(ii) the Plan is recordkept on a daily valuation basis by an independent
     recordkeeper whose services are provided through a contract or alliance
     arrangement with Merrill Lynch; or

(iii) the Plan has less than 500 eligible employees, as determined by the
      Merrill Lynch plan conversion manager, on the date the plan sponsor signs
      the Merrill Lynch Recordkeeping Service Agreement.

12b-1 Fees

The Funds have adopted Rule 12b-1 plans with respect to their Class A and Class
B shares that allow the Funds to pay distribution and other fees for the sale
of its shares and for services provided to shareholders. Under the plans, the
Funds may pay up to .25% of the daily net assets of Class A and Class B shares
to pay for certain shareholder services provided by institutions that have
agreements with the Funds' distributor to provide such services. The Funds may
also pay up to .75% of the daily net assets of the Class B shares to finance
activities relating to the distribution of its shares.

Because the fees are paid out of each Fund's assets on an on-going basis, over
time these fees will increase the cost of an investment in a Fund and may cost
a shareholder more than paying other types of sales charges.

Other Information

The advisor may, from time to time, make payments to banks, broker-dealers,
financial advisors or other financial institutions for certain services to the
Funds and/or their shareholders, including sub-administration, sub-transfer
agency and shareholder servicing. The advisor may make such payments out of its
own resources and there are no additional costs to the Funds or their
shareholders.

Please note that Comerica Bank, an affiliate of the advisor, receives a fee
from the Funds for providing shareholder services to its customers who own
shares of the Funds.

                                       28
<PAGE>

Pricing Of Fund Shares
--------------------------------------------------------------------------------

Each Fund's NAV is calculated on each day the New York Stock Exchange is open.
NAV is the value of a single share of a Fund.

The Funds calculate NAV as of the close of regular trading on the New York
Stock Exchange, normally 4:00 p.m. (Eastern time). If the New York Stock
Exchange closes early, the Funds will accelerate calculation of NAV and
transaction deadlines to that time.

The NAV of each underlying fund is generally based on the market value of the
securities held in the underlying fund. If market values are not available, the
fair value of securities is determined in good faith by, or using procedures
approved by, the boards of directors/trustees of the underlying funds.

Trading in foreign securities may be completed at times that vary from the
closing of the New York Stock Exchange. An underlying fund values foreign
securities at the latest closing price on the exchange on which they are traded
immediately prior to the closing of the New York Stock Exchange. Certain
foreign currency exchange rates may also be determined at the latest rate prior
to the closing of the New York Stock Exchange. Foreign securities quoted in
foreign currencies are translated into U.S. dollars at current rates.
Occasionally, events that affect these values and exchange rates may occur
between the times at which they are determined and the closing of the New York
Stock Exchange. If the advisor believes that such events materially affect the
value of portfolio securities, these securities may be valued at their fair
market value as determined in good faith by, or using procedures approved by,
the underlying funds' boards of directors/trustees.

Distributions
--------------------------------------------------------------------------------

As a shareholder, you are entitled to your share of a Fund's net income and
gains on its investments. Each Fund passes substantially all of its earnings
along to its shareholders as distributions. When a Fund earns dividends from
stocks and interest from debt securities and distributes these earnings to
shareholders, it is called a dividend distribution. A Fund realizes capital
gains when it sells securities for a higher price than it paid. When these
gains are distributed to shareholders, it is called a capital gain
distribution.

Each Fund pays dividends, if any, at least annually.

Each Fund distributes its net realized capital gains, if any, at least
annually.

It is possible that a Fund may make a distribution in excess of the Fund's
earnings and profits. You will treat such a distribution as a return of capital
which is applied against and reduces your basis in your shares. You will treat
the excess of any such distribution over your basis in your shares as gain from
a sale or exchange of the shares.

Each Fund will pay distributions in additional shares of the same class of that
Fund. If you wish to receive distributions in cash, either, indicate this
request on your account application form or notify the Funds at (800) 438-5789.

                                       29
<PAGE>

Federal Tax Considerations
--------------------------------------------------------------------------------

Investments in a Fund may have tax consequences that you should consider. This
section briefly describes some of the more common federal tax consequences. A
more detailed discussion about the tax treatment of distributions from the
Funds and about other potential tax liabilities, including backup withholding
for certain taxpayers and about tax aspects of dispositions of shares of the
Funds, is contained in the Statement of Additional Information. You should
consult your tax adviser about your own particular tax situation.

Taxes On Distributions

You will generally have to pay federal income tax on all Fund distributions.
Distributions will be taxed in the same manner whether you receive the
distributions in cash or in additional shares of the Fund. Shareholders not
subject to tax on their income generally will not be required to pay any tax on
distributions.

Distributions that are derived from net long-term capital gains generally will
be taxed as long-term capital gains. Dividend distributions and short-term
capital gains generally will be taxed as ordinary income. The tax you pay on a
given capital gains distribution generally depends on how long the Fund held
the portfolio securities it sold. It does not depend on how long you held your
Fund shares.

Distributions are generally taxable to you in the year in which they are paid,
with one exception: distributions declared in October, November or December,
but not paid until January of the following year, are taxed as though they were
paid on December 31 in the year in which they were declared.

Shareholders generally are required to report all Fund distributions on their
federal income tax returns. Each year the Funds will send you information
detailing the amount of ordinary income and capital gains paid to you for the
previous year.

Taxes On Sales Or Exchanges

If you sell shares of a Fund or exchange them for shares of another Munder
Fund, you generally will be subject to tax on any taxable gain. Taxable gain is
computed by subtracting your tax basis in the shares from the redemption
proceeds (in the case of a sale) or the value of the shares received (in the
case of an exchange). Because your tax basis depends on the original purchase
price and on the price at which any dividends may have been reinvested, you
should be sure to keep account statements so that you or your tax preparer will
be able to determine whether a sale or an exchange will result in a taxable
gain.

Other Considerations

If you buy shares of a Fund just before the Fund makes any distribution, you
will pay the full price for the shares then receive back a portion of the money
you just invested in the form of a taxable distribution.

If you have not provided complete, correct taxpayer information by law, the
Funds must withhold a portion of your distributions and redemption proceeds to
pay federal income taxes.

                                       30
<PAGE>

Management
--------------------------------------------------------------------------------

Investment Advisor

Munder Capital Management ("MCM"), 480 Pierce Street, Birmingham, Michigan
48009 is the investment advisor of each Fund and each underlying fund except
Institutional S&P 500 Index Equity Fund and International Equity Fund. The
advisors provide overall investment management for the Funds. As of March 31,
2000, MCM and its affiliates had approximately $62 billion in assets under
management, of which $39 billion were invested in equity securities, $7 billion
were invested in money market or other short-term instruments, $6 billion were
invested in other fixed income securities, $3 billion were invested in balanced
investment and $7 billion in non-discretionary assets.

World Asset Management ("World"), 255 East Brown Street, Birmingham, Michigan
48009, is the investment advisor of Institutional S&P 500 Index Equity Fund and
International Equity Fund. World is a wholly-owned subsidiary of the advisor.
As of March 31, 2000, World had approximately $22.7 billion in assets under
management, of which $17.6 billion were invested in domestic equity securities,
$4.5 billion were invested in international equity securities and $600 billion
were invested in other fixed income securities.

Framlington Overseas Investment Management Limited, and affiliate of the
advisor, is the sub-advisor of the Framlington Emerging Markets Fund,
Framlington Global Financial Services Fund, Framlington Healthcare Fund and
Framlington International Growth Fund.

During the fiscal year ended June 30, 1999, the advisor voluntarily waived a
portion of the advisory fees for each Fund. Each Fund paid an advisory fee at
an annual rate of 0.10% of each Fund's average daily net assets (after
waivers). As a result, the payments shown for the Funds were less than the
contractual advisory fees of .35% of each Fund's average daily net assets.

Portfolio Managers

A committee of professional portfolio managers employed by MCM makes investment
decision for the Funds.

                                       31
<PAGE>

Financial Highlights
--------------------------------------------------------------------------------

The financial highlights table is intended to help shareholders understand each
Fund's financial performance for the period of the Fund's operations. Certain
information reflects financial results for a single Fund share. The total
returns in the table represent the rate that an investor would have earned (or
lost) on an investment in a Fund (assuming reinvestment of all dividends and
distributions). The information has been audited by Ernst & Young LLP,
independent auditors, whose report, along with each Fund's financial
statements, are included in the annual reports of the Funds, and are
incorporated by reference into the Statement of Additional Information. The
information for the period ended December 31, 1999 is unaudited. You may obtain
the semi-annual and annual reports without charge by calling (800) 438-5789.

<TABLE>
<CAPTION>
                                                Conservative Fund (a)
                                                   Class A Shares
                                        ----------------------------------------
                                          Period
                                           Ended        Year      Period
                                        12/31/99(d)    Ended      Ended
                                        (Unaudited)  6/30/99(d) 6/30/98(d)
                                        -----------  ---------- ----------
<S>                                     <C>          <C>        <C>          <C>
Net asset value, beginning of period..     $8.91       $11.10     $11.10
                                           -----       ------     ------
Income from investment operations:
Net investment income.................      0.15         0.25       0.14
Net realized and unrealized
 gain/(loss) on investments...........      0.01        (0.40)     (0.04)
                                           -----       ------     ------
Total from investment operations......      0.16        (0.15)      0.10
                                           -----       ------     ------
Less distributions:
Dividends from net investment income..     (0.23)       (1.33)     (0.10)
Distributions in excess of net invest-
 ment income..........................         -        (0.05)         -
Distributions from net realized gains.         -        (0.66)         -
                                           -----       ------     ------
Total distributions...................     (0.23)       (2.04)     (0.10)
                                           -----       ------     ------
Net asset value, end of period........     $8.84       $ 8.91     $11.10
                                           -----       ------     ------
Total return(c).......................      1.83%       (0.98%)     0.91%
                                           =====       ======     ======
Ratios to average net
 assets/supplemental data:
Net assets, end of period (in 000's)..     $ 243       $  190     $    1
Ratio of operating expenses to average
 net assets...........................      0.72%(b)     0.71%      0.93%(b)
Ratio of net investment income to av-
 erage net assets.....................      3.48%(b)     2.79%      4.46%(b)
Portfolio turnover rate...............        86%         167%        31%
Ratio of operating expenses to average
 net assets without waivers...........     11.02%(b)     6.26%     23.99%(b)
</TABLE>
--------
(a) The Munder All-Season Conservative Fund Class A Shares commenced operations
    on March 13, 1998.
(b)Annualized.
(c) Total return represents aggregate total return for the period indicated and
    does not reflect any applicable sales charges.
(d) Per share numbers have been calculated using the average shares method.

                                       32
<PAGE>

<TABLE>
<CAPTION>
                                                Conservative Fund (a)
                                                   Class B Shares
                                        ----------------------------------------
                                          Period
                                           Ended        Year      Period
                                        12/31/99(d)    Ended      Ended
                                        (Unaudited)  6/30/99(d) 6/30/98(d)
                                        -----------  ---------- ----------
<S>                                     <C>          <C>        <C>          <C>
Net asset value, beginning of period..     $8.94       $11.10     $10.74
                                           -----       ------     ------
Income from investment operations:
Net investment income.................      0.12         0.21       0.19
Net realized and unrealized
 gain/(loss) on investments...........      0.04        (0.38)      0.23
                                           -----       ------     ------
Total from investment operations......      0.16        (0.17)      0.42
                                           -----       ------     ------
Less distributions:
Dividends from net investment income..     (0.20)       (0.22)     (0.06)
Distributions in excess of net invest-
 ment income..........................         -        (1.11)         -
Distributions from net realized gains.         -        (0.66)         -
                                           -----       ------     ------
Total distributions...................     (0.20)       (1.99)     (0.06)
                                           -----       ------     ------
Net asset value, end of period........     $8.90       $ 8.94     $11.10
                                           -----       ------     ------
Total return(c).......................      1.80%       (1.17%)     3.91%
                                           =====       ======     ======
Ratios to average net
 assets/supplemental data:
Net assets, end of period (in 000's)..     $ 139       $  199     $  208
Ratio of operating expenses to average
 net assets...........................      1.42%(b)     1.41%      1.63%(b)
Ratio of net investment income to av-
 erage net assets.....................      2.78%(b)     2.21%      3.76%(b)
Portfolio turnover rate...............        86%         167%        31%
Ratio of operating expenses to average
 net assets without waivers...........     11.74%(b)     6.96%     24.69%(b)
</TABLE>
--------
(a) The Munder All-Season Conservative Fund Class B Shares commenced operations
    on January 14, 1998.
(b)Annualized.
(c) Total return represents aggregate total return for the period indicated and
    does not reflect any applicable sales charges.
(d) Per share numbers have been calculated using the average shares method.

                                       33
<PAGE>

<TABLE>
<CAPTION>
                                               Moderate Fund (a)
                                                Class A Shares
                                   -------------------------------------------
                                     Period
                                      Ended         Year       Year    Period
                                   12/31/99(d)     Ended      Ended     Ended
                                   (Unaudited)   6/30/99(d) 6/30/98(d) 6/30/97
                                   -----------   ---------- ---------- -------
<S>                                <C>           <C>        <C>        <C>
Net asset value, beginning of pe-
 riod............................    $12.30        $11.92     $11.02   $10.00
                                     ------        ------     ------   ------
Income from investment opera-
 tions:
Net investment income............      0.11          0.18       0.16     0.04
Net realized and unrealized
 gain/(loss) on investments......      1.00          0.60       1.44     0.98
                                     ------        ------     ------   ------
Total from investment operations.      1.11          0.78       1.60     1.02
                                     ------        ------     ------   ------
Less distributions:
Dividends from net investment in-
 come............................     (0.21)        (0.22)     (0.18)       -
Dividends in excess of net in-
 vestment income.................         -         (0.03)         -        -
Distributions from net realized
 gains...........................     (0.57)        (0.15)     (0.52)       -
                                     ------        ------     ------   ------
Total distributions..............     (0.78)        (0.40)     (0.70)       -
                                     ------        ------     ------   ------
Net asset value, end of period...    $12.63        $12.30     $11.92   $11.02
                                     ------        ------     ------   ------
Total return(b)..................      9.60%         6.74%     15.10%   10.20%
                                     ======        ======     ======   ======
Ratios to average net
 assets/supplemental data:
Net assets, end of period (in
 000's)..........................    $  636        $  432     $  342   $  214
Ratio of operating expenses to
 average net assets..............      0.69%(b)      0.66%      0.88%    0.85%(b)
Ratio of net investment income to
 average net assets..............      1.77%(b)      1.54%      1.38%    2.22%(b)
Portfolio turnover rate..........        18%          115%        54%       5%
Ratio of operating expenses to
 average net assets without
 waivers.........................      2.36%(b)      2.54%     11.07%   41.36%(b)
</TABLE>
--------
(a) The Munder All-Season Moderate Fund Class A Shares commenced operations on
    April  4, 1997.
(b)Annualized.
(c) Total return represents aggregate total return for the period indicated and
    does not reflect any applicable sales charges.
(d) Per share numbers have been calculated using the average shares method.

                                       34
<PAGE>

<TABLE>
<CAPTION>
                                                  Moderate Fund (a)
                                                   Class B Shares
                                        -----------------------------------------
                                          Period
                                           Ended         Year      Period
                                        12/31/99(d)     Ended      Ended
                                        (Unaudited)   6/30/99(d) 6/30/98(d)
                                        -----------   ---------- ----------
<S>                                     <C>           <C>        <C>          <C>
Net asset value, beginning of period..    $12.29        $11.90     $11.14
                                          ------        ------     ------
Income from investment operations:
Net investment income.................      0.06          0.10       0.04
Net realized and unrealized
 gain/(loss) on investments...........      1.02          0.60       0.74
                                          ------        ------     ------
Total from investment operations......      1.08          0.70       0.78
                                          ------        ------     ------
Less distributions:
Dividends from net investment income..     (0.17)        (0.13)     (0.02)
Dividends in excess of net investment
 income...............................         -         (0.03)         -
Distributions from net realized gains.     (0.57)        (0.15)         -
                                          ------        ------     ------
Total distributions...................     (0.74)        (0.31)     (0.02)
                                          ------        ------     ------
Net asset value, end of period........    $12.63        $12.22     $11.09
                                          ------        ------     ------
Total return(b).......................      9.30%         6.06%      6.96%
                                          ======        ======     ======
Ratios to average net
 assets/supplemental data:
Net assets, end of period (in 000's)..    $  274        $  155     $  193
Ratio of operating expenses to average
 net assets...........................      1.39%(b)      1.36%      1.58%(b)
Ratio of net investment income to av-
 erage net assets.....................      1.07%(b)      0.83%      0.68%(b)
Portfolio turnover rate...............        18%          115%        54%
Ratio of operating expenses to average
 net assets without waivers...........      3.06%(b)      3.24%     11.77%(b)
</TABLE>
--------
(a) The Munder All-Season Moderate Fund Class B Shares commenced operations on
    January 14, 1998.
(b)Annualized.
(c) Total return represents aggregate total return for the period indicated and
    does not reflect any applicable sales charges.
(d) Per share numbers have been calculated using the average shares method.

                                       35
<PAGE>

More information about the Funds is available free upon request, including the
following:

Annual/Semi-Annual Reports

You will receive unaudited semi-annual reports and audited annual reports on a
regular basis from the Funds. In the Funds' annual report, you will find a
discussion of market conditions and investment strategies that significantly
affected the Funds' performance during their last fiscal year. In addition, you
will also receive updated prospectuses or supplements to this prospectus. In
order to eliminate duplicate mailings, the Funds will only send one copy of the
above communications to (1) accounts with the same primary record owner, (2)
joint tenant accounts, (3) tenant in common accounts and (4) accounts which have
the same address.

Statement Of Additional Information

Provides more details about the Funds and their policies. A current Statement of
Additional Information is on file with the Securities and Exchange Commission
and is incorporated by reference (is legally considered part of this
prospectus).

To Obtain Information:
--------------------------------------------------------------------------------

  By telephone
  Call 1-800-438-5789

  By mail
  Write to:
  The Munder Funds
  c/o PFPC Global Fund Services
  P.O. Box 60428
  King of Prussia, PA 19406-0428

  On the Internet
  Text-only versions of fund documents can be viewed online or downloaded from:
    Securities and Exchange Commission
    http://www.sec.gov

  You can also obtain copies by visiting the Securities and Exchange
  Commission's Public Reference Room in Washington, D.C. (phone 1-202-942-8090)
  or by sending your request and a duplicating fee to the Securities and
  Exchange Commission's Public Reference Section, Washington, D.C. 20549-0102.
  You may also obtain information, after paying a duplicating fee, by electronic
  request at: [email protected]

  You may also find more information about the Fund on the Internet at:
  http://www.munderfunds.com
--------------------------------------------------------------------------------

The Munder Funds, Inc.
SEC file number: 811-7346

PROLIFEAB600

Investment Advisor: Munder Capital Management
Distributed by: Funds Distributor, Inc.


<PAGE>

                                                                  CLASS Y SHARES



[MUNDER LOGO]                                                         Prospectus

Investments
for all seasons                                                    JUNE 29, 2000

                                             Munder All-Season Conservative Fund
                                                 Munder All-Season Moderate Fund







                                    As with all mutual funds, the Securities and
                                         Exchange Commission has not approved or
                                disapproved these securities nor passed upon the
                                accuracy or adequacy of this prospectus. It is a
                                            criminal offense to state otherwise.

<PAGE>

Table Of Contents

<TABLE>
 <C> <S>
 2   Risk/Return Summary
 8   Who May Want To Invest
 9   Fees And Expenses

 10  More About The Funds
 10  Glossary
 11  Asset Allocation Chart
 12  Description Of The Underlying Funds
 14  Principal Investment Strategies And Risks
 16  Other Investment Strategies And Risks Of The Funds And Underlying Funds
 19  Disclaimers

 20  Your Investment
 20  How To Reach The Funds
 20  Purchasing Shares
 21  Exchanging Shares
 21  Redeeming Shares
 21  Additional Policies For Purchases, Exchanges And Redemptions
 22  Shareholder Privileges

 23  Pricing Of Fund Shares

 23  Distributions

 24  Federal Tax Considerations
 24  Taxes On Distributions
 24  Taxes On Sales Or Exchanges
 24  Other Considerations

 25  Management
 25  Investment Advisor
 25  Portfolio Managers

 26  Financial Highlights

</TABLE>

Back Cover For Additional Information
<PAGE>

Risk/Return Summary
--------------------------------------------------------------------------------

This Risk/Return Summary briefly describes the goals and principal investment
strategies of the Funds and the principal risks of investing in the Funds. For
further information on these and the Funds' other investment strategies and
risks, please read the section entitled "More About the Funds." Certain terms
used in this prospectus are defined in the Glossary.

 Fund of Funds

 Each Fund is a fund of funds, which means that it invests almost all of its
 assets in other mutual funds, rather than in individual securities. Each Fund
 invests its assets in a variety of other Munder Funds, referred to as
 "underlying funds."

 The risks of investing in the Funds are dependent on which underlying funds the
 Funds invest in, and to what extent. In addition, the investment performance of
 each Fund is directly related to the performance of the underlying funds in
 which it invests.


 Investment Approach of the Underlying Funds

 . The underlying equity funds represented in each Fund vary from growth to
   value styles of investing, from larger to smaller company stocks and from
   domestic to international equities.

 . The underlying fixed income funds reflect the advisor's core fixed income
   philosophy: interest rate relationships, sector weightings and credit
   analysis. Some exposure to international bonds may also be included.

Conservative Fund

Goal

The Fund's goal is to provide current income with capital appreciation as a
secondary objective.

Principal Investment Strategies

As a fund of funds, the Fund pursues its goal by investing a majority of its
assets in underlying funds that invest primarily in fixed income securities.

The Fund may also invest a portion of its assets in underlying funds that
invest primarily in equity securities or money market instruments.

The advisor may periodically adjust the Fund's asset allocation among
underlying funds in response to changing economic and market conditions. The
typical allocation is expected to be: 70% Fixed Income Funds, 25% Equity Funds
and 5% Money Market Funds.

The Fund's indirect fixed income holdings are a mix of short-, intermediate-
and long-term U.S. government securities, mortgage and other asset-backed
securities, stripped securities and obligations of state, local and foreign
issuers. The average maturity will range from three to 15 years and the
portfolios' holdings will be rated investment grade or better or if unrated are
of comparable quality. The Fund's indirect stock holdings will be a combination
of large-cap, mid-cap and small-cap U.S. stocks as well as foreign stocks.

In the "More About the Funds" section, you will find a description of the
underlying funds and a chart showing the percentage of its assets that the Fund
may invest in each underlying fund.

Principal Risks

All investments have some degree of risk which will affect the value of a
portfolio's investment, its investment performance and the price of its shares.
As a result, you may lose money if you invest in the Fund.

An investment in the Fund is not a bank deposit and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other
governmental agency.

Among the principal risks of investing in the Fund are:

 . Interest Rate Risk. Increases in prevailing interest rates will cause fixed-
  income securities held by an underlying fund to decline in value. Longer term
  bonds are generally more sensitive to interest rate changes than shorter term
  bonds.

                                       2
<PAGE>

 Generally, the longer the average maturity of the bonds held by the
 underlying fund, the more the Fund's share price will fluctuate in response
 to interest rate changes.

 . Credit (or Default) Risk. An issuer of a security may default on its payment
  obligations. Also, an issuer may suffer adverse changes in financial
  condition that could lower the credit quality of a security, leading to
  greater volatility in the price of the security and in shares of the Fund. A
  change in the quality rating of a bond can affect the bond's liquidity and
  make it more difficult for the underlying fund to sell.

 . Prepayment Risk. The Fund may experience losses when an issuer exercises its
  right to pay principal on an obligation held by an underlying fund (such as
  a mortgage-backed security) earlier than expected. This may happen during a
  period of declining interest rates. Under these circumstances, the
  underlying fund may be unable to recoup all of its initial investment and
  will suffer from having to reinvest in lower yielding securities. The loss
  of higher yielding securities and the reinvestment at lower interest rates
  can reduce the Fund's income, total return and share price.

Because the mix of underlying funds held by the Fund can change from time to
time, the Fund may be subject to the following additional principal risks at
various times:

 . Stock Market Risk. The value of the securities in which a Fund invests may
  decline in response to general economic conditions. Price changes may be
  temporary or last for extended periods. For example, stock prices have
  historically risen and fallen in periodic cycles. In addition, the value of
  a Fund's investments may decline if the particular companies the Fund
  invests in do not perform well.

 . Foreign Securities Risk. Investments by an underlying fund in foreign
  securities may experience greater and more rapid changes in value than U.S.
  securities. Foreign securities are generally more volatile and less liquid
  than U.S. securities, in part because of greater political and economic
  risks and because there is less public information available about foreign
  companies. Issuers of foreign securities are generally not subject to the
  same degree of regulation as are U.S. issuers. The reporting, accounting and
  auditing standards of foreign countries may differ, in some cases
  significantly, from U.S. standards.

 . Currency Risk. A decline in the value of foreign currencies relative to the
  U.S. dollar will reduce the value of an underlying fund's portfolio
  securities denominated in those currencies.

 . Smaller Company Stock Risk. The stocks of small companies may have more
  risks than those of larger companies. Small companies often have narrower
  markets and more limited managerial and financial resources than larger,
  more established companies. As a result, they may be more sensitive to
  changing economic conditions, which could increase the volatility of an
  underlying fund's portfolio. In addition, small company stocks typically are
  traded in lower volume making them more difficult to sell.

 . Sector Risk. Certain underlying funds may concentrate its investments in a
  particular industry sector. Adverse economic, business or political
  developments affecting that industry sector could have a major effect on the
  value of the underlying fund's investments.

                                       3
<PAGE>

Performance

The bar chart and table below give some indication of the risk of an investment
in the Fund. The bar chart shows the Fund's performance in each calendar year
since inception. The table shows how the Fund's average annual total returns
for different calendar periods over the life of the Fund compare to those of a
broad based securities market index.

When you consider this information, please remember a Fund's performance in
past years is not necessarily an indication of how a Fund will perform in the
future.

<TABLE>
<CAPTION>
                         Average Annual Total Return
                         (for the periods ended December 31, 1999)
                                         -------------------------------------------
                                                                             Since
                                                                           Inception
                                                      1 Year               (4/3/97)
                                         -------------------------------------------
                         <S>                          <C>                  <C>
                         Class Y                       3.32%                 6.56%
                         Lehman Brothers Int.
                         Gov't/Corp. Index*            0.39%                 6.06%**
</TABLE>
                                         --------
                                         *The Lehman Brothers Intermediate
                                            Government/Corporate Bond Index
                                            is a weighted composite of (i)
                                            Lehman Brothers Intermediate
                                            Government Bond Index, which is
                                            comprised of all publicly issued,
                                            non-convertible debt of the U.S.
                                            Government or any agency thereof,
                                            quasi-federal corporations and
                                            corporate debt guaranteed by the
                                            U.S. Government with a maturity
                                            between one and ten years and
                                            (ii) Lehman Brothers Corporate
                                            Bond Index, which is comprised of
                                            all public fixed-rate, non-
                                            convertible investment-grade
                                            domestic corporate debt,
                                            excluding collaterized mortgage
                                            obligations.
                                         **Index return from 3/31/97.
All-Season Conservative Fund Class Y

Total Return
(per calendar year)
                                  [BAR CHART]
1998     2.36%
1999     3.32%


Year-to-date through March 31, 2000: 4.05%

<TABLE>
<S>                                    <C>                                                   <C>
Best Quarter:                          Q4 1999                                                4.24%
Worst Quarter:                         Q3 1998                                               (4.33%)
</TABLE>


                                       4
<PAGE>

Moderate Fund

Goal

The Fund's goal is to provide high total return through both capital
appreciation and current income.

Principal Investment Strategies

As a fund of funds, the Fund pursues its goal by investing a majority of its
assets in underlying funds that invest primarily in equity securities and fixed
income securities.

The Fund may also invest a small portion of its assets in underlying money
market funds.

The advisor may periodically adjust the Fund's asset allocation among
underlying funds in response to changing economic and market conditions. The
typical allocation is expected to be: 60% Equity Funds, 35% Fixed Income Funds
and 5% Money Market Funds.

The Fund's indirect stock holdings will be a mix of large-cap, mid-cap and
small-cap U.S. stocks as well as foreign stocks. The Fund's indirect fixed
income holdings are a combination of short-, intermediate- and long-term U.S.
government securities, mortgage and other asset-backed securities, stripped
securities and obligations of state, local and foreign issuers. The average
maturity will range from three to 15 years and the portfolio's holdings will be
rated investment grade or better or if unrated are of comparable quality.

In the "More About the Funds" section, you will find a description of the
underlying funds and a chart showing the percentage of its assets that the Fund
may invest in each underlying fund.

Principal Risks

All investments have some degree of risk which will affect the value of a
portfolio's investment, its investment performance and the price of its shares.
As a result, you may lose money if you invest in the Fund.

An investment in the Fund is not a bank deposit and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other
governmental agency.

Among the principal risks of investing in the Fund are:

 . Stock Market Risk. The value of the securities in which a Fund invests may
  decline in response to general economic conditions. Price changes may be
  temporary or last for extended periods. For example, stock prices have
  historically risen and fallen in periodic cycles. In addition, the value of a
  Fund's investments may decline if the particular companies the Fund invests
  in do not perform well.

 . Smaller Company Stock Risk. The stocks of small companies may have more risks
  than those of larger companies. Small companies often have narrower markets
  and more limited managerial and financial resources than larger, more
  established companies. As a result, they may be more sensitive to changing
  economic conditions, which could increase the volatility of an underlying
  fund's portfolio. In addition, small company stocks typically are traded in
  lower volume making them more difficult to sell.

 . Sector Risk. Certain underlying funds may concentrate its investments in a
  particular industry sector. Adverse economic, business or political
  developments affecting that industry sector could have a major effect on the
  value of the underlying fund's investments.

 . Foreign Securities Risk. Investments by an underlying fund in foreign
  securities may experience greater and more rapid changes in value than U.S.
  securities. Foreign securities are generally more volatile and less liquid
  than U.S. securities, in part because of greater political and economic risks
  and because there is less public information available about foreign
  companies. Issuers of foreign securities are generally not subject to the
  same degree of regulation as are U.S. issuers. The reporting, accounting and
  auditing standards of foreign countries may differ, in some cases
  significantly, from U.S. standards.

 . Currency Risk. A decline in the value of foreign currencies relative to the
  U.S. dollar will reduce the value of an underlying fund's portfolio
  securities denominated in those currencies.

Because the mix of underlying funds held by the Fund can change from time to
time, the Fund may

                                       5
<PAGE>

be subject to the following additional principal risks at various times:

 . Interest Rate Risk. Increases in prevailing interest rates will cause fixed-
  income securities held by an underlying fund to decline in value. Longer
  term bonds are generally more sensitive to interest rate changes than
  shorter term bonds. Generally, the longer the average maturity of the bonds
  held by the underlying fund, the more the Fund's share price will fluctuate
  in response to interest rate changes.

 . Credit (or Default) Risk. An issuer of a security may default on its payment
  obligations. Also, an issuer may suffer adverse changes in financial
  condition that could lower the credit quality of a security, leading to
  greater volatility in the price of the security and in shares of the Fund. A
  change in the quality rating of a bond can affect the bond's liquidity and
  make it more difficult for the underlying fund to sell.

 . Prepayment Risk. The Fund may experience losses when an issuer exercises its
  right to pay principal on an obligation held by an underlying fund (such as
  a mortgage-backed security) earlier than expected. This may happen during a
  period of declining interest rates. Under these circumstances, the
  underlying fund may be unable to recoup all of its initial investment and
  will suffer from having to reinvest in lower yielding securities. The loss
  of higher yielding securities and the reinvestment at lower interest rates
  can reduce the Fund's income, total return and share price.

                                       6
<PAGE>

Performance

The bar chart and table below give some indication of the risk of an investment
in the Fund. The bar chart shows the Fund's performance in each calendar year
since inception. The table shows how the Fund's average annual total returns
for different calendar periods over the life of the Fund compare to those of a
broad based securities market index.

When you consider this information, please remember the Fund's performance in
past years is not neccessarily an indication of how the Funds will perform in
the future.

<TABLE>
<CAPTION>
                         Average Annual Total Return
                         (for the periods ended December 31,
                         1999)
                                         -----------------------
                                                         Since
                                                       Inception
                                                1 Year  (4/3/97)
                                         -----------------------
                         <S>                    <C>    <C>
                         Class Y                15.17%  15.73%
                         60% S&P/40% Lehman
                          Brothers Gov't/Corp.
                          Index*                11.76%  21.02%**
</TABLE>
                                         --------
                                         *  Standard & Poor's Composite 500
                                            Index is an unmanaged index of
                                            common stock prices. The Lehman
                                            Brothers Government/Corporate
                                            Bond Index is a weighted
                                            composite of (i) Lehman Brothers
                                            Government Bond Index, which is
                                            comprised of all publicly issued,
                                            non-convertible debt of the U.S.
                                            Government or any agency thereof,
                                            quasi-federal corporations, and
                                            corporate debt guaranteed by the
                                            U.S. Government and (ii) Lehman
                                            Brothers Corporate Bond Index,
                                            which is comprised of all public
                                            fixed-rate, non-convertible
                                            investment-grade domestic
                                            corporate debt, excluding
                                            collateralized mortgage
                                            obligations.

                                         ** Index return from 3/31/97.
All-Season Moderate Fund Class Y
Total Return
(per calendar year)
[BAR CHART]
1998     7.27%
1999    15.17%

Year-to-date through March 31, 2000:
9.83%

<TABLE>
<S>                                    <C>                                                   <C>
Best Quarter:                          Q4 1999                                               14.80%
Worst Quarter:                         Q3 1998                                               (9.69)%
</TABLE>


                                       7
<PAGE>

Who May Want To Invest

The All-Season Conservative Fund may be appropriate for investors who:

 . Seek current income.

 . Seek long term growth without taking undue risk.

The All-Season Moderate Fund may be appropriate for investors who:

 . Seek a balance of both capital appreciation and income.

                                       8
<PAGE>

Fees And Expenses

The tables below describe the fees and expenses that you may pay if you buy and
hold Class Y shares of the Funds. Please note that the following information
does not include fees that institutions may charge for services they provide to
you.

<TABLE>
<CAPTION>
Shareholder Fees (fees paid directly from your investment)
----------------------------------------------------------
<S>                                                                         <C>
Maximum Sales Charge (Load) Imposed on Purchases........................... None
Sales Charge (Load) Imposed on Reinvested Dividends........................ None
Maximum Deferred Sales Charge (Load)....................................... None
Redemption Fees............................................................ None
Exchange Fees.............................................................. None
</TABLE>

Annual Fund Operating Expenses (expenses that are paid from Fund assets)
as a % of net assets

<TABLE>
<CAPTION>
                                                          Conservative Moderate
                                                              Fund       Fund
                                                          ------------ --------
<S>                                                       <C>          <C>
Management Fees(1).......................................      .35%       .35%
Other Expenses(1)........................................     5.61%      1.89%
                                                              ----       ----
Total Annual Fund Operating Expenses(1)..................     5.96%      2.24%
                                                              ====       ====
</TABLE>
--------
(1) For the fiscal year ended June 30, 1999, the advisor voluntarily waived a
    portion of its management fees and voluntarily reimbursed certain operating
    expenses. As a result of these voluntary fee waiver and expense
    reimbursement, the actual management fees, other expenses and total annual
    fund operating expenses were .10%, .31% and .41%. respectively, for the
    Conservative Fund, and .10%, .26% and .36%, respectively, for the Moderate
    Fund. The advisor may terminate the fee waivers and/or expense
    reimbursements at any time.

  In addition to the expenses shown above, shareholders of the Funds will
  indirectly bear their pro rata shares of the annual operating expenses of
  the underlying funds. As a result, the investment returns of the Funds will
  be net of the expenses of the Underlying Funds. Since the Funds invest in
  other Munder Funds, as a shareholder you will pay a higher expense ratio
  than if you had purchased shares of an underlying fund directly. The
  underlying funds' total annual fund operating expense ratios for the fiscal
  year ended June 30, 1999 ranged from .32% to 2.45%.

Example

The examples are intended to help you compare the cost of investing in each
Fund to the cost of investing in other mutual funds. The examples assume that
you invest $10,000 in each Fund for the time periods indicated. The examples
also assume that your investment has a 5% return each year, that each Fund's
operating expenses remain the same and that all dividends and distributions are
reinvested. Although your actual costs may be higher or lower, based on these
assumptions your costs would be:

<TABLE>
<CAPTION>
                                                           Conservative Moderate
                                                               Fund       Fund
                                                           ------------ --------
      <S>                                                  <C>          <C>
      1 Year..............................................    $  597     $  228
      3 Years.............................................    $1,775     $  703
      5 Years.............................................    $2,929     $1,204
      10 Years............................................    $5,715     $2,585
</TABLE>

                                       9
<PAGE>

More About The Funds
--------------------------------------------------------------------------------

This section describes the underlying funds in which the Funds may invest. It
also discusses the risks of investing in the Funds, which are dependent upon
which underlying funds the Funds invest in, and to what extent. Further,
included in this section is a chart that shows the maximum percentage of its
assets that a Fund may invest in each underlying fund. Please note that the
underlying funds may also invest in securities and are subject to restrictions
and additional risks which are described in the Statement of Additional
Information.

The Glossary below explains certain terms used throughout this prospectus.

Glossary

Types Of Securities

Equity securities include common stocks, preferred stocks, securities
convertible into common stocks, and rights and warrants to subscribe for the
purchase of common stocks. Equity securities may be listed on a stock exchange
or NASDAQ National Market System or unlisted. Warrants are rights to purchase
securities at a specified time at a specified price.

Fixed income securities are securities that pay interest at set times at either
fixed, floating or variable rates, or which are issued at a discount to their
principal amount instead of making periodic interest payments. Fixed income
securities include corporate bonds, debentures and other similar corporate debt
instruments, zero coupon bonds and variable amount master demand notes.

Convertible Securities A convertible security is a bond or preferred stock that
may be converted (exchanged) into the common stock of the issuing company
within a specified time period for a specified number of shares. Convertible
securities offer the underlying funds a way to participate in the capital
appreciation of the common stock into which the securities are convertible,
while earning higher current income than is available from the common stock.

U.S. Government securities are securities issued or guaranteed by the U.S.
Government, its agencies or instrumentalities. These securities include U.S.
Treasury bills, U.S. Treasury notes, U.S. Treasury bonds and obligations of the
Federal Home Loan Corporation, Federal National Mortgage Association and
Government National Mortgage Association.

Money market instruments are high-quality, short-term instruments including
commercial paper, bankers' acceptances and negotiable certificates of deposit
of banks or savings and loan associations, short-term corporate obligations and
short-term U.S. Government securities.

Rating Agencies and Indices

Moody's is Moody's Investor Services, Inc.

Duff & Phelps is Duff & Phelps Credit Rating Co.

Fitch is Fitch IBCA, Inc.

S&P is Standard & Poor's Rating Services.

S&P 500 is S&P's 500 Composite Stock Price Index, a widely recognized unmanaged
index of U.S. stock market activity.

Other

1940 Act is the Investment Company Act of 1940, as amended.

Internal Revenue Code is the Internal Revenue Code of 1986, as amended.

NAV is the net asset value per share of a Fund. NAV is the value of a single
share of a Fund. Each Fund calculates NAV separately for each class. NAV is
calculated by (1) taking the current value of a Fund's total assets allocated
to a particular class of shares, (2) subtracting the liabilities and expenses
charged to that class (3) dividing that amount by the total number of shares of
that class outstanding.

                                       10
<PAGE>

Asset Allocation Chart

The following chart shows the Fund's maximum investment (expressed as a
percentage of each Fund's assets) that each Fund may make in the underlying
funds.

<TABLE>
<CAPTION>
                                                           Conservative Moderate
                                                               Fund       Fund
                                                           ------------ --------
<S>                                                        <C>          <C>
Equity Funds
Equity Income Fund........................................     10%        15%
Focus Growth Fund.........................................     10%        20%
Future Technology Fund....................................      5%        10%
Growth Opportunities Fund.................................     10%        15%
Institutional S&P 500 Index Equity Fund...................     20%        30%
International Equity Fund.................................      5%        10%
International NetNet Fund.................................     10%        10%
Micro-Cap Equity Fund.....................................     10%        10%
Multi-Season Growth Fund..................................     20%        30%
NetNet Fund...............................................      5%         5%
Real Estate Equity Investment Fund........................     10%        20%
Small-Cap Value Fund......................................     10%        20%
Small Company Growth Fund.................................     20%        30%
Framlington Emerging Markets Fund.........................      5%        10%
Framlington Global Financial Services Fund................      5%        10%
Framlington Healthcare Fund...............................      5%         5%
Framlington International Growth Fund.....................      5%        10%
Income Funds
Bond Fund.................................................     80%        50%
Intermediate Bond Fund....................................     80%        50%
International Bond Fund...................................     30%        20%
U.S. Government Income Fund...............................     60%        40%
Money Market Funds
Cash Investment Fund......................................     15%        15%
Institutional Money Market Fund...........................     10%        10%
U.S. Treasury Money Market Fund...........................     10%        10%
</TABLE>

                                       11
<PAGE>

Description of Underlying Funds

Equity Funds

Equity Income Fund
The Fund's goal is to provide capital appreciation and current income. The Fund
pursues its goal by investing primarily in dividend-paying equity securities
and fixed income securities which are convertible into or exchangeable for
common stock. The advisor generally selects large, well-known companies that it
believes have favorable prospects for dividend growth and capital appreciation.
The Fund will seek to produce a current yield greater than the S&P 500.

Focus Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities which the
advisor believes are undervalued compared to stocks of other companies in the
same industry. The Fund generally invests in companies with market
capitalizations of at least $1 billion. The Fund diversifies its assets by
industry in approximately the same weightings as those of the Russell 1000
Growth Index.

Future Technology Fund
The Fund's goal is to provide capital appreciation. The Fund pursues its goal
by investing at least 65% of its assets in common stocks of technology-related
companies. Technology-related companies are companies that develop,
manufacture, or distribute technology, communications and Internet-related
products and services. The Fund may also invest in the stocks of companies that
should benefit commercially from technological advances. The Fund invests in
both established companies and in new or unseasoned companies, including
companies making initial public offerings.

Growth Opportunities Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in the equity securities of
companies with market capitalizations between $500 million and $10 billion. Its
style, which focuses on both growth prospects and valuation, is known as GARP
(Growth at a Reasonable Price) and seeks to produce attractive returns during
various market environments.

Institutional S&P 500 Index Equity Fund
The Fund's goal is to provide performance and income that is comparable to the
S&P 500. The S&P 500 is an index of 500 stocks that emphasizes large
capitalization companies. The Fund pursues its goal by normally holding a
substantial amount of its assets in securities of at least 400 of the stocks in
the S&P 500. The Fund is managed through the use of a "quantitative" or
"indexing" investment approach and tries to mirror the composition and
performance of the S&P 500 through statistical procedures. The Fund will try to
achieve a correlation between the performance of its portfolio and that of the
S&P 500 of at least .95. A correlation of 1.0 would mean that the changes in
the Fund's price mirror exactly the changes in the S&P 500.

International Equity Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing primarily in foreign securities, including American
Depositary Receipts. The Fund mostly invests in mature markets, but may also
invest in emerging markets. The Fund emphasizes companies with a market
capitalization of at least $250 million.

International NetNet Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by using a growth strategy to invest primarily in foreign companies
engaged in the Internet or Intranet related business. Under normal market
conditions, the Fund will invest at least 65% of its total assets in equity
securities of foreign companies that are engaged in the research, design,
development, manufacturing or engaged to a significant extent in the business
of distributing products, processes or services for use with the Internet or
Intranet related businesses.

Micro-Cap Equity Fund
The Fund's goal is to provide capital appreciation. The Fund pursues its goal
by investing at least 65% of its assets in equity securities of micro-
capitalization companies having market capitalizations within the range of the
companies in the Wilshire Micro-Cap Index. There is no limit on the length of
operating history for the companies in which the Fund may invest. The Fund may
invest without limit in initial public offerings of small capitalization
companies. In addition, the Fund may invest up to 35% of its assets in equity
securities of medium and larger capitalization companies, including initial
public offerings of such companies.

                                       12
<PAGE>

Multi-Season Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities. The Fund
generally invests in equity securities of companies with market capitalizations
over $1 billion. Its style, which focuses on both growth prospects and
valuation, is known as GARP (Growth at a Reasonable Price) and seeks to produce
attractive returns during various market environments.

NetNet Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing primarily in companies engaged in the Intranet and
Internet related business. Under normal market conditions, the Fund will invest
at least 65% of its total assets in equity securities of companies that are
engaged in research, design, development, manufacturing or engaged to a
significant extent in the business of distributing products, processes or
services for use with Internet or Intranet related businesses.

Real Estate Equity Investment Fund
The Fund's goal is to provide both capital appreciation and current income. The
Fund pursues its goal by investing at least 65% of its total assets in equity
securities of U.S. companies which are principally engaged in the real estate
industry.

Small-Cap Value Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of small
capitalization companies having market capitalizations within the range of the
companies in the Russell 2000 Index. The advisor will concentrate on companies
that it believes are undervalued.

Small Company Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing, under normal market conditions, at least 65% of its
assets in equity securities of small capitalization companies with market
capitalizations below $1.5 billion.

Framlington Emerging Markets Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of
companies in emerging market countries, as defined by the World Bank, the
International Finance Corporation, the United Nations or the European Bank for
Reconstruction and Development. It may also invest in foreign securities of
companies located in countries with mature markets.

Framlington Global Financial Services Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of U.S.
and foreign companies which are principally engaged in the financial services
industry and companies providing services primarily within the financial
services industry. The Fund focuses specifically on companies which are likely
to benefit from growth or consolidation in the financial services industry.

The Fund may invest in securities of companies located in countries with mature
markets and in those with emerging markets.

Framlington Healthcare Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing in equity securities of companies providing healthcare
and medical services and products worldwide. Currently, most of these companies
are located in the United States. The Fund's investments may include foreign
securities of companies located in countries with mature markets and in those
with emerging markets.

Framlington International Growth Fund
The Fund's goal is to provide long-term capital appreciation. The Fund pursues
its goal by investing at least 65% of its assets in equity securities of
issuers located in at least three foreign countries. The Fund may invest in
companies located in countries with mature markets and in those with emerging
markets.

Income Funds

Bond Fund
The Fund's primary goal is to provide a high level of current income. Its
secondary goal is capital appreciation. The Fund pursues its goals by investing
at least 65% of its total assets in a broad range of bonds and other fixed
income securities.The Fund's dollar-weighted average maturity will generally
range between six and fifteen years. The Fund will

                                       13
<PAGE>

purchase only fixed income securities that are rated investment grade or
better, or if unrated, are of comparable quality.

Intermediate Bond Fund
The Fund's goal is to provide a competitive rate of return which, over time,
exceeds the rate of inflation and the return provided by money market
instruments. The Fund pursues its goals by investing at least 65% of its total
assets in a broad range of bonds and other fixed income securities. The Fund's
dollar-weighted average maturity will generally range between three and eight
years. The Fund will purchase only fixed income securities that are rated
investment grade or better, or if unrated, are of comparable quality.

International Bond Fund
The Fund's goal is to realize a competitive total return through a combination
of current income and capital appreciation. The Fund pursues its goal by
investing at least 65% of its total assets in a broad range of bonds and other
fixed income securities of foreign issuers. The Fund will invest in the
securities of issuers in at least three foreign countries. The Fund's dollar-
weighted average maturity will generally range between three and fifteen years.
The Fund may invest a portion of its assets in domestic obligations, including
U.S. Government securities and obligations of domestic banks and corporations.

U.S. Government Income Fund
The Fund's goal is to provide high current income. The Fund pursues its goal by
investing at least 65% of its total assets in a broad range of U.S. Government
securities and repurchase agreements relating to such securities. The Fund's
dollar-weighted average maturity generally will range between six and fifteen
years.

Money Market Funds

Cash Investment Fund
The Fund's primary goal is to provide as high a level of current interest
income as is consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing in a broad range of U.S. dollar-
denominated money market instruments. The Fund invests solely in U.S. dollar-
denominated debt securities with remaining maturities of 13 months or less and
maintains an average dollar-weighted portfolio maturity of 90 days or less.

Institutional Money Market Fund
The Fund's primary goal is to provide as high a level of current interest
income as is consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing in a broad range of U.S. dollar-
denominated money market instruments. The Fund invests solely in U.S. dollar-
denominated debt securities with remaining maturities of 13 months or less and
maintains an average dollar-weighted portfolio maturity of 90 days or less.

U.S. Treasury Money Market Fund
The Fund's goal is to provide as high a level of current interest income as is
consistent with maintaining liquidity and stability of principal.
The Fund pursues its goal by investing its assets solely in short-term bills
and notes, issued by the U.S. Treasury (including "stripped" securities) and in
repurchase agreements relating to such obligations. The Fund invests solely in
U.S. dollar-denominated debt securities with remaining maturities of 13 months
or less and maintains an average dollar-weighted portfolio maturity of 90 days
or less.

Principal Investment Strategies and Risks

Foreign Investment Risk. Certain underlying funds may invest in foreign
securities. Foreign securities include investments in non-U.S. dollar-
denominated securities traded outside of the United States and dollar-
denominated securities of foreign issuers traded in the United States. Foreign
securities also include American Depository Receipts ("ADRs"), European
Depository Receipts ("EDRs") and Global Depository Receipts ("GDRs"). ADRs are
U.S. dollar-denominated receipts representing shares of foreign-based
corporations. ADRs are issued by U.S. banks or trust companies, and entitle the
holder to all dividends and capital gains that are paid out on the underlying
foreign shares. EDRs and GDRs are receipts issued by non-U.S. financial
institutions that often trade on foreign exchanges. They represent ownership in
an underlying foreign or U.S. security and are generally denominated in a
foreign currency.

  Special Risks. Foreign securities involve special risks and costs.
  Investment in the securities of foreign governments involves the

                                       14
<PAGE>

  risk that foreign governments may default on their obligations or may
  otherwise not respect the integrity of their debt.

  Investment in foreign securities may involve higher costs than investment
  in U.S. securities, including higher transaction and custody costs as well
  as the imposition of taxes by foreign governments. Foreign investments may
  also involve risks associated with the level of currency exchange rates,
  less complete financial information about the issuers, less market
  liquidity, more market volatility and political instability. Future
  political and economic developments, the possible imposition of withholding
  taxes on dividend income, the possible seizure or nationalization of
  foreign holdings, the possible establishment of exchange controls or
  freezes on the convertibility of currency, or the adoption of other
  governmental restrictions might adversely affect an investment in foreign
  securities. Additionally, foreign issuers may be subject to less stringent
  regulation, and to different accounting, auditing and recordkeeping
  requirements.

  Currency exchange rates may fluctuate significantly over short periods of
  time causing an underlying fund's net asset value to fluctuate as well. A
  decline in the value of a foreign currency relative to the U.S. dollar will
  reduce the value of a foreign currency-denominated security. To the extent
  that an underlying fund is invested in foreign securities while also
  maintaining currency positions, it may be exposed to greater combined risk.
  The underlying funds' respective net currency positions may expose them to
  risks independent of their securities positions.

  Additional risks are involved when investing in countries with emerging
  economies or securities markets. In general, the securities markets of
  these countries are less liquid, are subject to greater price volatility,
  have smaller market capitalizations and may have problems with securities
  registration and custody. In addition, because the securities settlement
  procedures are less developed in these countries, an underlying fund may be
  required to deliver securities before receiving payment and may also be
  unable to complete transactions during market disruptions. As a result of
  these and other risks, investments in these countries generally present a
  greater risk of loss to the Fund.

  A further risk of investing in foreign securities is the risk that an
  underlying fund may be adversely affected by the conversion of certain
  European currencies into the Euro. This conversion, which is under way, is
  scheduled to be completed in the year 2002. However, problems with the
  conversion process and delays could increase volatility in world capital
  markets and affect European capital markets in particular.

Investment Grade Credit Risk. A security is considered investment grade if, at
the time of purchase, it is rated:

 . BBB or higher by S&P;

 . Baa or higher by Moody's;

 . BBB or higher by Duff & Phelps; or

 . BBB or higher by Fitch.

A security will be considered investment grade if it receives one of the above
ratings, even if it receives a lower rating from other rating organizations.

  Investment Strategy. Except as stated in the next section, fixed income and
  convertible securities purchased by the underlying funds will generally be
  rated at least investment grade. The underlying funds may also invest in
  unrated securities if the advisor or sub-advisor believes they are
  comparable in quality.

  Special Risks. Although securities rated "BBB" by S&P, Duff & Phelps or
  Fitch, or "Baa" by Moody's are considered investment grade, they have
  certain speculative characteristics. Therefore, they may be subject to a
  higher risk of default than obligations with higher ratings. Subsequent to
  its purchase by an underlying fund, a rated security may cease to be rated
  or its rating may be reduced below the minimum rating required for purchase
  by the underlying fund. The adviser or sub-advisor will consider such an
  event in determining whether the underlying fund should continue to hold
  the security.

                                       15
<PAGE>

Investments in Financial Services Companies by Framlington Global Financial
Services Fund. Financial services companies are subject to extensive
governmental regulation which may limit both the financial commitments they can
make, and the interest rates and fees they can charge. Insurance companies may
be subject to severe price competition.

Investments in the Healthcare Industry by Framlington Healthcare Fund. The
Framlington Healthcare Fund will invest most of its assets in the healthcare
industry, which is particularly affected by rapidly changing technology and
extensive government regulation, including cost containment measures.

Investments in the Real Estate Industry by Real Estate Equity Investment
Fund. The Real Estate Equity Investment Fund will invest primarily in the real
estate industry and may invest more than 25% of its assets in any one sector of
the real estate industry. As a result, the Real Estate Equity Investment Fund
will be particularly vulnerable to declines in real estate prices and new
construction rates.

Investments by the NetNet Fund. The NetNet Fund will invest primarily in
companies engaged in Internet and Intranet related activities. The value of
such companies is particularly vulnerable to rapidly changing technology,
extensive government regulation and relatively high risks of obsolescence
caused by scientific and technological advances. The value of the Fund's shares
may fluctuate more than shares of a fund investing in a broader range of
industries.

Investments in the Technology Industry by Future Technology Fund. The Future
Technology Fund will invest most of its assets in the technology industry,
which is particularly affected by rapidly changing technology product cycles,
government regulation and competition. Technology stocks, especially those of
smaller, less-seasoned companies, tend to be more volatile than the overall
market.

Short-Term Trading. The underlying funds may engage in short-term trading,
including initial public offerings.

  Special Risks. A high rate of portfolio turnover (100% or more) could
  produce higher trading costs and taxable distributions, which could detract
  from a Fund's performance.

Defensive Investing. Each Fund and underlying fund (except the Index 500 Fund)
may invest all or any portion of its assets in short-term obligations as a
temporary defensive measure in response to adverse market or economic
conditions.

  Special Risks. If a Fund or one or more underlying funds adopts a defensive
  strategy, the Fund may not achieve its investment objective.

Other Investment Strategies and Risks Of The Funds And Underlying Funds

Asset-Backed Securities. Asset-backed securities are debt securities backed by
mortgages, installment sales contract and credit card receivables. The
securities are sponsored by entities such as government agencies, banks,
financial companies and commercial or industrial companies. In effect, these
securities "pass through" the monthly payments that individual borrowers make
on their mortgage or other assets net of any fees paid to the issuers. Examples
of these include guaranteed mortgage pass-through certificates, collateralized
mortgage obligations ("CMOs") and real estate mortgage investment conduits
("REMICs").

  Special Risks. In addition to credit and market risk, asset-backed
  securities involve repayment risk because the underlying assets (loans) may
  be prepaid at any time. The value of these securities may also change
  because of actual or perceived changes in the creditworthiness of the
  originator, the servicing agent, the financial institution providing the
  credit support, or the counterparty. Like other fixed income securities,
  when interest rates rise the value of an asset-backed security generally
  will decline. However, when interest rates decline, the value of an asset-
  backed security with prepayment features may not increase as much as that
  of other fixed income securities. In addition, non-mortgage asset-backed
  securities involve certain risks not presented by mortgage-backed
  securities. Primarily, these securities do not have the benefit of the same
  security interest in the underlying collateral.

                                       16
<PAGE>

Borrowing and Reverse Repurchase Agreements. The Funds and underlying funds can
borrow money from banks and enter into reverse repurchase agreements with banks
and other financial institutions. Reverse repurchase agreements involve the
sale of securities held by a Fund (or underlying fund) subject to the Fund's
(or underlying fund) agreement to repurchase them at a mutually agreed upon
date and price (including interest).

  Investment Strategy. Each Fund (or underlying fund) may borrow money in an
  amount up to 5% of its assets for temporary emergency purposes and in an
  amount up to 33 1/3% of its assets to meet redemptions. This is a
  fundamental policy which can be changed only by shareholders.

  Special Risks.  Borrowings and reverse repurchase agreements by a Fund (or
  underlying fund) may involve leveraging. If the securities held by the Fund
  (or underlying fund) decline in value while these transactions are
  outstanding, the Fund's net asset value will decline in value by
  proportionately more than the decline in value of the securities. In
  addition, reverse repurchase agreements involve the risks that the interest
  income earned by the Fund (or underlying fund) (from the investment of the
  proceeds) will be less than the interest expense of the transaction, that
  the market value of the securities sold by the Fund (or underlying fund)
  will decline below the price the Fund (or underlying fund) is obligated to
  pay to repurchase the securities, and that the securities may not be
  returned to the Fund (or underlying fund).

Derivative Risk.  Some underlying funds may purchase certain "derivative"
instruments. Derivatives are financial contracts whose value is based on any
underlying security, a currency exchange rate, an interest rate or a market
index. Many types of instruments representing a wide range of potential risks
and rewards are derivatives, including futures contracts options on futures
contracts, options, forward currency contracts and structured debt obligations
(including collateralized mortgage obligations and other types of asset-backed
securities, "stripped" securities and various floating rate instruments).

  Investment Strategy.  Derivatives can be used for hedging (attempting to
  reduce risk by offsetting one investment position with another) or
  speculation (taking a position in the hope of increasing return). The
  underlying funds may, but are not required to, use derivatives for hedging
  purposes or for the purpose of remaining fully invested or maintaining
  liquidity. The underlying funds will not use derivatives for speculative
  purposes.

  Special Risks.  The use of derivative instruments exposes a Fund to
  additional risks and transaction costs. Risks of derivative instruments
  include: (1) the risk that interest rates, securities prices and currency
  markets will not move in the direction that a portfolio manager
  anticipates; (2) imperfect correlation between the price of derivative
  instruments and movements in the prices of the securities, interest rates
  or currencies being hedged; (3) the fact that skills needed to use these
  strategies are different than those needed to select portfolio securities;
  (4) the possible absence of a liquid secondary market for any particular
  instrument and possible exchange imposed price fluctuation limits, either
  of which may make it difficult or impossible to close out a position when
  desired; (5) the risk that adverse price movement in an instrument can
  result in a loss substantially greater that the Funds initial nvestment in
  that instrument (in some leases, the potential loss is unlimited);
  (6) particularly in the case of privately negotiated instruments, the risk
  that the counterparty will not perform its obligations, which could leave
  the Fund worse off that if it had not entered into the position: and (7)
  the inability to close out certain hedged positions to avoid adverse tax
  consequences.

Forward Currency Exchange Contracts. A forward currency exchange contract is an
obligation to exchange one currency for another on a future date at a specified
exchange rate.

  Investment Strategy. Forward currency exchange contracts may be used for
  hedging purposes and to help reduce the risks and volatility caused by
  changes in foreign currency exchange rates. Foreign currency exchange
  contracts will be used at the discretion of the

                                       17
<PAGE>

  advisor or sub-advisor, and no underlying fund is required to hedge its
  foreign currency positions.

  Special Risks. Forward currency contracts are privately negotiated
  transactions, and can have substantial price volatility. When used for
  hedging purposes, they tend to limit any potential gain that may be
  realized if the value of an underlying fund's foreign holdings increases
  because of currency fluctuations.

Futures Contracts and Related Options. A futures contract is a type of
derivative instrument that obligates the holder to buy or sell an asset in the
future at an agreed upon price. When an underlying fund purchases an option on
a futures contract, it has the right to assume a position as a purchaser or
seller of a futures contract at a specified exercise price during the option
period. When an underlying fund sells an option on a futures contract, it
becomes obligated to purchase or sell a futures contract if the option is
exercised.

  Investment Strategy. The underlying funds may invest in futures contracts
  and options on futures contracts on domestic or foreign exchanges or boards
  of trade. These instruments may be used for hedging purposes, to maintain
  liquidity to meet potential shareholder redemptions, to invest cash
  balances or dividends, or to minimize trading costs.

  An underlying fund will not purchase or sell a futures contract unless,
  after the transaction, the sum of the aggregate amount of margin deposits
  on its existing futures positions and the amount of premiums paid for
  related options used for non-hedging purposes is 5% or less of the
  underlying fund's total assets.

  Special Risks. Futures contracts and related options present the following
  risks: imperfect correlation between the change in market value of an
  underlying fund's securities and the price of futures contracts and
  options; the possible inability to close a futures contract when desired;
  losses due to unanticipated market movements, which are potentially
  unlimited; and the possible inability of the advisor or sub-advisor to
  correctly predict the direction of securities prices, interest rates,
  currency exchange rates and other economic factors.

Illiquid Securities. Illiquid securities include private placements or other
securities that are subject to legal or contractual restrictions on resale or
for which there is no readily available market.

  Investment Strategy. Each underlying fund may invest up to 15% of its net
  assets in securities that are illiquid.

  Special Risks. To the extent that an underlying fund invests in illiquid
  securities, the underlying fund risks not being able to sell the securities
  at the time and the price that it would like. The underlying fund may have
  to lower the price, sell substitute securities or forego an investment
  opportunity, each of which may cause a loss to the underlying fund.

Options. An option is a type of derivative instrument that gives the holder the
right (but not the obligation) to buy (a "call") or sell (a "put") an asset in
the future at an agreed upon price prior to the expiration date of the option.

  Investment Strategy. The underlying funds may write (sell) covered call
  options, buy put options, buy call options and write secured put options
  for hedging purposes. Options may relate to particular securities, foreign
  or domestic securities indices, financial instruments or foreign
  currencies.

  Special Risks. The value of options can be highly volatile, and their use
  can result in loss if the advisor or sub-advisor is incorrect in its
  expectation of price fluctuations. The successful use of options for
  hedging purposes also depends in part on the ability of the advisor or sub-
  advisor to predict future price fluctuations and the degree of correlation
  between the options and securities markets.

Securities Lending.  In order to generate additional income, each underlying
fund may lend securities on a short-term basis to qualified institutions. By
reinvesting any cash collateral it receives in these transactions, the
underlying fund could realize additional income gains or losses.

  Investment Strategy.  Securities lending may represent no more than 25% of
  the value of an underlying fund's total assets (including the loan
  collateral).

                                       18
<PAGE>

  Special Risks. The main risk when lending securities is that if the
  borrower fails to return the securities or the invested collateral has
  declined in value, the underlying fund could lose money.

Stripped Securities. These securities are issued by the U.S. Government (or
agency or instrumentality), foreign governments or banks and other financial
institutions. They entitle the holder to receive either interest payments or
principal payments that have been "stripped" from a debt obligation. These
obligations include participations in trusts that hold U.S. Treasury or agency
securities.

  Special Risks. Stripped securities are very sensitive to changes in
  interest rates and to the rate of principal repayments. A rapid or
  unexpected increase in mortgage prepayments could severely depress the
  price of certain stripped mortgage-backed securities and adversely affect
  an underlying fund's total returns.

Temporary Investments. Short-term obligations refer to U.S. Government
securities, high-quality money market instruments and repurchase agreements
with maturities of 13 months or less. Generally, these obligations are
purchased to provide stability and liquidity to a Fund or underlying fund.

  Investment Strategy. Each Fund or underlying fund may invest a portion of
  its assets in short-term obligations pending investment or to meet
  anticipated redemption requests.

  Special Risks. A Fund or underlying fund may not achieve its investment
  objective when its asset are invested in short-term obligations.

Variable and Floating Rate Instruments. Variable and floating rate instruments
have interest rates that are periodically adjusted either at set intervals or
that float at a margin above a generally recognized index rate. These
instruments include variable amount master demand notes.

  Special Risks. Variable and floating rate instruments are subject to the
  same risks as fixed income investments, particularly interest rate and
  credit risk. Because there is no active secondary market for certain
  variable and floating rate instruments, they may be more difficult to sell
  if the issuer defaults on its payment obligations or during periods when an
  underlying fund is not entitled to exercise its demand rights. As a result,
  the underlying fund could suffer a loss with respect to these instruments.

Zero Coupon Bonds. These are securities issued at a discount from their face
value because interest payments are typically postponed until maturity.

  Special Risks. The market prices of zero coupon bonds generally are more
  volatile than the market prices of interest-bearing securities and are
  likely to respond to a greater degree to changes in interest rates than
  interest-bearing securities having similar maturities and credit quality.
  An underlying fund's investments in zero coupon bonds may require the
  underlying fund to sell some of its portfolio securities to generate
  sufficient cash to satisfy certain income distribution requirements.

Disclaimers
Disclaimers. The Institutional S&P 500 Index Equity Fund is not sponsored,
endorsed, sold or promoted by S&P, nor does S&P guarantee the accuracy and/or
completeness of the S&P 500(R) Index or any data included therein. S&P makes no
warranty, express or implied, as to the results to be obtained by the Fund,
owners of the Fund, any person or any entity from the use of the S&P 500(R)
Index or any data included therein. S&P makes no express or implied warranties
and expressly disclaims all such warranties of merchantability or fitness for a
particular purpose for use with respect to the S&P(R) Index or any data
included therein.
                                       19
<PAGE>

Your Investment
--------------------------------------------------------------------------------

This section describes how to do business with the Funds.

How To Reach The Funds

By telephone: 1-800-438-5789
           Call for account information.

By mail:The Munder Funds
c/o PFPC Global Fund Services
P.O. Box 60428
King of Prussia, PA 19406-0428

Purchasing Shares

Who May Purchase Shares
The following persons may purchase shares of the Funds:

  . fiduciary and discretionary accounts of institutions;

  . institutional investors (including: banks; savings institutions; credit
    unions and other financial institutions; pension, profit sharing and
    employee benefit plans and trusts; insurance companies; investment
    companies; investment advisers, broker-dealers or financial advisors
    acting for their own accounts or for the accounts of their clients);

  . directors, trustees, officers and employees of the Munder Funds, the
    advisor and the Funds' distributor;

  . the advisor's investment advisory clients; and

  . family members of employees of the advisor.

Each Fund also issues other classes of shares, which have different sales
charges, expense levels and performance. Call (800) 438-5789 to obtain more
information about the Funds' other classes of shares.

Purchase Price of Shares
Class Y shares of the Funds are sold at the NAV next determined after a
purchase order is received in proper form.

Broker-dealers or financial advisors (other than the Funds' distributor) may
charge you a fee for shares you purchase through them.

Policies for Purchasing Shares

Minimum initial investment
The minimum initial investment by fiduciary and discretionary accounts of
institutions and by institutional investors is $500,000. Other investors are
not subject to any minimum.

There is no minimum for subsequent investments.

Timing of orders
Purchase orders must be received by the Funds' distributor, transfer agent or
authorized dealer before the close of regular trading on the New York Stock
Exchange (normally, 4:00 p.m. Eastern time).

Methods for Purchasing Shares
You can purchase Class Y shares through the Fund's transfer agent or through
the Fund's distributor through arrangements with a broker-dealer, financial
advisor or financial institution.

 . Through a Financial Institution. You may purchase shares through a financial
  institution through procedures established with that institution.
  Confirmations of share purchases will be sent to the institution.

 . By Mail. You may open an account directly through the Fund's transfer agent
  by completing, signing and mailing an account application form and a check or
  other negotiable bank draft (payable to The Munder Funds) to: The Munder
  Funds, c/o PFPC Gobal Fund Services, P.O. Box 60428, King of Prussia,
  Pennsylvania 19406-0428. You can obtain an account application form by
  calling (800) 438-5789. For additional investments, send a letter stating the
  Fund and share class you wish to purchase, your name and your account number
  with a check for $50 or more to the address listed above. We do not accept
  third-party checks.

 . By Wire. You may make additional investments in the Funds by wire. Wire
  instructions must state the Fund name, share class, your registered name and
  your account number. Your bank wire should be sent through the Federal
  Reserve Bank Wire System to:

  Boston Safe Deposit and Trust Company
  Boston, MA
  ABA# 011001234
  DDA# 16-798-3
  Account No.:

                                       20
<PAGE>

 Note that banks may charge fees for transmitting wires.

 . You may purchase shares through the Automatic Investment Plan.

Exchanging Shares

Policies for Exchanging Shares

 . You may exchange your Fund shares for Class Y shares of other Munder Funds
  based on their relative net asset values.

 . You must meet the minimum purchase requirements for the Munder Fund that you
  purchase by exchange.

 . A share exchange may be a taxable event and, accordingly, you may realize a
  taxable gain or loss.

 . Before making an exchange request, read the prospectus of the Munder Fund you
  wish to purchase by exchange. You can obtain a prospectus for any Munder Fund
  by contacting your broker or the Munder Funds at (800) 438-5789.

 . Brokers or financial advisors may charge you a fee for handling exchanges.

 . We may modify or terminate the exchange privilege at any time. You will be
  given notice of any material modifications except where notice is not
  required.

Redeeming Shares

Redemption Price
We will redeem shares at the NAV next determined after we receive the
redemption request in proper form.

Methods for Redeeming Shares

 . You may redeem shares of all Funds through your broker-dealer or financial
  institution.

Policies for Redeeming Shares

 . Shares held by an institution on behalf of its customers must be redeemed in
  accordance with instructions and limitations pertaining to the account at
  that institution.

 . If we receive a redemption order for a Fund before 4:00 p.m. (Eastern time),
  we will normally wire payment to the redeeming institution on the next
  business day.

Additional Policies For Purchases, Exchanges And Redemptions

 . We consider requests to be in "proper form" when all required documents are
   properly completed, signed and received.

 . The Funds reserve the right to reject any purchase order.

 . At any time, the Funds may change any of their purchase, redemption or
   exchange practices, and may suspend the sale of their shares.

 . The Funds may delay sending redemption proceeds for up to seven days, or
   longer if permitted by the Securities and Exchange Commission.

 . To limit the Funds' expenses, we no longer issue share certificates.

 . We will typically send redemption amounts to you within seven business days
   after you redeem shares. We may hold redemption amounts from the sale of
   shares you purchased by check until the purchase check has cleared, which
   may be as long as 15 days.

 . A Fund may temporarily stop redeeming shares if:

  . the New York Stock Exchange is closed;

  . trading on the New York Stock Exchange is restricted;

  . an emergency exists and the Fund cannot sell its assets or accurately
    determine the value of its assets; or

  . the Securities and Exchange Commission orders the Fund to suspend
    redemptions.

 . If accepted by a Fund, investors may purchase shares of the Fund with
   securities which the Fund may hold. The advisor will determine if

                                       21
<PAGE>

  the securities are consistent with the Funds objectives and policies. If
  accepted, the securities will be valued the same way the Fund values
  portfolio securities it already owns. Call the Funds at (800) 438-5789 for
  more information.

 . The Funds reserve the right to make payment for redeemed shares wholly or
   in part by giving the redeeming shareholder portfolio securities. The
   shareholder may pay transaction costs to dispose of these securities.

 . We record all telephone calls for your protection and take measures to
   identify the caller. As long as the Fund's transfer agent takes reasonable
   measures to authenticate telephone requests on an investor's account,
   neither the Funds, the Fund's distributor nor the transfer agent will be
   held responsible for any losses resulting from unauthorized transactions.

 . We may redeem your account if its value falls below $250 as a result of
   redemptions (but not as a result of a decline in net asset value). You will
   be notified in writing and allowed 60 days to increase the value of your
   account to the minimum investment level.

 . If you purchased shares directly through the Funds' transfer agent, the
   transfer agent will send you confirmations of the opening of an account and
   of all subsequent purchases, exchanges or redemptions in the account.
   Confirmations of transactions effected through an institution will be sent
   to the institution.

 . Financial institutions are responsible for transmitting orders and payments
   for their customers on a timely basis.

Shareholder Privileges

Automatic Investment Plan (AIP). Under the AIP you may arrange for periodic
investments in a Fund through automatic deductions from a checking or savings
account. To enroll in the AIP you should complete the AIP application form or
call the Funds at (800) 438-5789. The minimum pre-authorized investment amount
is $50. You may discontinue the AIP at any time. We may discontinue the AIP on
30 days' written notice to you.

                                       22
<PAGE>

Pricing Of Fund Shares
--------------------------------------------------------------------------------
Each Fund's NAV is calculated on each day the New York Stock Exchange is open.

The Funds calculate NAV as of the close of regular trading on the New York
Stock Exchange, normally 4:00 p.m. (Eastern time). If the New York Stock
Exchange closes early, the Funds will accelerate calculation of NAV and
transaction deadlines to that time.

The NAV of each underlying fund is generally based on the market value of the
securities held in the underlying fund. If market values are not available, the
fair value of securities is determined in good faith by, or using procedures
approved by, the boards of directors/trustees of the underlying funds.

Trading in foreign securities may be completed at times that vary from the
closing of the New York Stock Exchange. An underlying fund values foreign
securities at the latest closing price on the exchange on which they are traded
immediately prior to the closing of the New York Stock Exchange. Certain
foreign currency exchange rates may also be determined at the latest rate prior
to the closing of the New York Stock Exchange. Foreign securities quoted in
foreign currencies are translated into U.S. dollars at current rates.
Occasionally, events that affect these values and exchange rates may occur
between the times at which they are determined and the closing of the New York
Stock Exchange. If the advisor believes that such events materially affect the
value of portfolio securities, these securities may be valued at their fair
market value as determined in good faith by, or using procedures approved by,
the underlying funds' boards of directors/trustees.

Distributions
--------------------------------------------------------------------------------
As a shareholder, you are entitled to your share of a Fund's net income and
gains on its investments. Each Fund passes substantially all of its earnings
along to its shareholders as distributions. When a Fund earns dividends from
stocks and interest from debt securities and distributes these earnings to
shareholders, it is called a dividend distribution. A Fund realizes capital
gains when it sells securities for a higher price than it paid. When these
gains are distributed to shareholders, it is called a capital gain
distribution.

Each Fund pays dividends, if any, at least annually.

Each Fund distributes its net realized capital gains, if any, at least
annually.

It is possible that a Fund may make a distribution in excess of the Fund's
earnings and profits. You will treat such a distribution as a return of capital
which is applied against and reduces your basis in your shares. You will treat
the excess of any such distribution over your basis in your shares as gain from
a sale or exchange of the shares.

Each Fund will pay distributions in additional shares of the same class of that
Fund. If you wish to receive distributions in cash, either, indicate this
request on your account application form or notify the Funds at (800) 438-5789.

                                       23
<PAGE>

Federal Tax Considerations
--------------------------------------------------------------------------------
Investments in a Fund may have tax consequences that you should consider. This
section briefly describes some of the more common federal tax consequences. A
more detailed discussion about the tax treatment of distributions from the
Funds and about other potential tax liabilities, including backup withholding
for certain taxpayers and about tax aspects of dispositions of shares of the
Funds, is contained in the Statement of Additional Information. You should
consult your tax adviser about your own particular tax situation.

Taxes On Distributions

You will generally have to pay federal income tax on all Fund distributions.
Distributions will be taxed in the same manner whether you receive the
distributions in cash or in additional shares of the Fund. Shareholders not
subject to tax on their income generally will not be required to pay any tax on
distributions.

Distributions that are derived from net long-term capital gains generally will
be taxed as long-term capital gains. Dividend distributions and short-term
capital gains generally will be taxed as ordinary income. The tax you pay on a
given capital gains distribution generally depends on how long the Fund held
the portfolio securities it sold. It does not depend on how long you held your
Fund shares.

Distributions are generally taxable to you in the year in which they are paid,
with one exception: distributions declared in October, November or December,
but not paid until January of the following year, are taxed as though they were
paid on December 31 in the year in which they were declared.

Shareholders generally are required to report all Fund distributions on their
federal income tax returns. Each year the Funds will send you information
detailing the amount of ordinary income and capital gains paid to you for the
previous year.

Taxes On Sales Or Exchanges

If you sell shares of a Fund or exchange them for shares of another Munder
Fund, you generally will be subject to tax on any taxable gain. Taxable gain is
computed by subtracting your tax basis in the shares from the redemption
proceeds (in the case of a sale) or the value of the shares received (in the
case of an exchange). Because your tax basis depends on the original purchase
price and on the price at which any dividends may have been reinvested, you
should be sure to keep account statements so that you or your tax preparer will
be able to determine whether a sale or an exchange will result in a taxable
gain.

Other Considerations

If you buy shares of a Fund just before the Fund makes any distribution, you
will pay the full price for the shares then receive back a portion of the money
you just invested in the form of a taxable distribution.

If you have not provided complete, correct taxpayer information by law, the
Funds must withhold a portion of your distributions and redemption proceeds to
pay federal income taxes.

                                       24
<PAGE>

Management
--------------------------------------------------------------------------------

Investment Advisor

Munder Capital Management ("MCM"), 480 Pierce Street, Birmingham, Michigan
48009 is the investment advisor of each Fund and each underlying fund except
Institutional S&P 500 Index Equity Fund and International Equity Fund. The
advisors provide overall investment management for the Funds. As of March 31,
2000, MCM and its affiliates had approximately $62 billion in assets under
management, of which $34 billion were invested in equity securities, $7 billion
were invested in money market or other short-term instruments, $6 billion were
invested in other fixed income securities, $3 billion were invested in balanced
investments and $7 billion in non-discretionary assets.

World Asset Management ("World"), 255 East Brown Street, Birmingham, Michigan
48009, is the investment advisor of Institutional S&P 500 Index Equity Fund and
International Equity Fund. World is a wholly-owned subsidiary of the advisor.
As of March 31, 2000, World had approximately $22.7 billion in assets under
management, of which $17.6 billion were invested in domestic equity securities,
$4.5 billion were invested in international equity securities and $600 million
were invested in other fixed income securities.

Framlington Overseas Investment Management Limited, an affiliate of the
advisor, is the sub-advisor of the Framlington Emerging Markets Fund,
Framlington Global Financial Services Fund, Framlington Healthcare Fund and
Framlington International Growth Fund.

During the fiscal year ended June 30, 1999, the advisor voluntarily waived a
portion of the advisory fees for each Fund. Each Fund paid an advisory fee at
an annual rate of 0.10% of each Fund's average daily net assets (after
waivers). As a result, the payments shown above for the Funds were less than
the contractual advisory fees of .35% of each Fund's average daily net assets.

The advisor may, from time to time, make payments to banks, broker-dealers,
financial advisors or other financial institutions for certain services to the
Funds and/or their shareholders, including sub-administration, sub-transfer
agency and shareholder servicing. The advisor may make such payments out of its
own resources and there are no additional costs to the Funds or their
shareholders.

Please note that Comerica Bank, an affiliate of the advisor, receives a fee
from the Funds for providing shareholder services to its customers who own
shares of the Funds.

Portfolio Managers

A committee of professional portfolio managers employed by MCM makes investment
decisions for the Funds.
                                       25
<PAGE>

Financial Highlights
--------------------------------------------------------------------------------

The financial highlights table is intended to help shareholders understand each
Fund's financial performance for the period of the Fund's operations. Certain
information reflects financial results for a single Fund share. The total
returns in the table represent the rate that an investor would have earned (or
lost) on an investment in a Fund (assuming reinvestment of all dividends and
distributions). The information has been audited by Ernst & Young LLP,
independent auditors, whose report, along with each Fund's financial
statements, are included in the annual reports of the Funds, and are
incorporated by reference into the Statement of Additional Information. The
information for the period ended December 31, 1999 is unaudited. You may obtain
the semi-annual and annual reports without charge by calling (800) 438-5789.

<TABLE>
<CAPTION>
                                             Conservative Fund(a)
                                                Class Y Shares
                                   ------------------------------------------
                                     Period
                                      Ended                           Period
                                   12/31/99(d)  Year Ended Year Ended  Ended
                                   (Unaudited)  6/30/99(d) 6/30/98(d) 6/30/97
                                   -----------  ---------- ---------- -------
<S>                                <C>          <C>        <C>        <C>
Net asset value, beginning of
 period..........................     $8.97       $11.10     $10.55   $10.00
                                      -----       ------     ------   ------
Income from investment
 operations:
Net investment income............      0.17         0.40       0.52     0.10
Net realized and unrealized gain
 on investments..................     (0.00)(a)    (0.47)      0.59     0.45
                                      -----       ------     ------   ------
Total from investment operations.      0.17        (0.07)      1.11     0.55
                                      -----       ------     ------   ------
Less distributions:
Dividends from net investment
 income .........................     (0.24)       (1.40)     (0.37)      --
Distributions in excess of net
 investment income...............        --           --         --       --
Distributions from net realized
 capital gains...................        --        (0.66)     (0.19)      --
                                      -----       ------     ------   ------
Total distributions..............     (0.24)       (2.06)     (0.56)      --
                                      -----       ------     ------   ------
Net asset value, end of period...     $8.90       $ 8.97     $11.10   $10.55
                                      =====       ======     ======   ======
Total return(c)..................      1.97%       (0.05)%    10.73%    5.50%
                                      =====       ======     ======   ======
Ratios to average net
 assets/supplemental data:
Net assets, end of period (in
 000's)..........................     $ 113         $143     $4,441   $  105
Ratio of operating expenses to
 average net assets..............      0.42%(b)     0.41%      0.63%    0.55%(b)
Ratio of net investment income to
 average net assets..............      3.78%(b)     3.74%      4.76%    4.24%(b)
Portfolio turnover rate..........        86%         167%        31%      18%
Ratio of operating expenses to
 average net assets without
 expenses reimbursed...............   10.74%(b)     5.96%     23.69%   97.07%(b)
</TABLE>
--------
(a) The Munder All-Season Conservative Fund Class Y Shares commenced operations
    on April 3, 1997.
(b) Annualized.
(c) Total return represents aggregate total return for the period indicated.
(d) Per share numbers have been calculated using the average shares method.

                                       26
<PAGE>

<TABLE>
<CAPTION>
                                             Moderate Fund(a)
                                              Class Y Shares
                                 -------------------------------------------
                                   Period
                                    Ended         Year       Year    Period
                                 12/31/99(d)     Ended      Ended     Ended
                                 (Unaudited)   6/30/99(d) 6/30/98(d) 6/30/97
                                 -----------   ---------- ---------- -------
<S>                              <C>           <C>        <C>        <C>
Net asset value, beginning of
 period........................    $12.29        $11.91     $11.02   $10.00
                                   ------        ------     ------   ------
Income from investment opera-
 tions:
Net investment income..........      0.12          0.21       0.20     0.06
Net realized and unrealized
 gain on investments...........      1.01          0.60       1.43     0.96
                                   ------        ------     ------   ------
Total from investment opera-
 tions.........................      1.13          0.81       1.63     1.02
                                   ------        ------     ------   ------
Less distributions:
Dividends from net investment
 income........................     (0.23)        (0.26)     (0.22)      --
Distributions in excess of net
 investment income.............        --         (0.02)        --       --
Distributions from net realized
 capital gains.................     (0.57)        (0.15)     (0.52)      --
                                   ------        ------     ------   ------
Total distributions............     (0.80)        (0.43)     (0.74)      --
                                   ------        ------     ------   ------
Net asset value, end of peri-
 od............................    $12.62        $12.29     $11.91   $11.02
                                   ======        ======     ======   ======
Total return(c)................      9.78%         7.03%     15.30%   10.20%
                                   ======        ======     ======   ======
Ratios to average net
 assets/supplemental data:
Net assets, end of period (in
 000's)........................    $2,655        $2,308     $1,884   $  113
Ratio of operating expenses to
 average net assets............      0.39%(b)      0.36%      0.58%    0.55%(b)
Ratio of net investment income
 to average net assets.........      2.07%(b)      1.85%      1.68%    2.52%(b)
Portfolio turnover rate........        18%          115%        54%       5%
Ratio of operating expenses to
 average net assets without ex-
 penses reimbursed.............      2.06%(b)      2.24%     10.77%   41.06%(b)
</TABLE>
--------
(a) The Munder All-Season Moderate Fund Class Y Shares commenced operations on
    April 3, 1997.
(b) Annualized.
(c) Total return represents aggregate total return for the period indicated.
(d) Per share numbers have been calculated using the average shares method.

                                       27
<PAGE>

More information about the Fund is available free upon request, including the
following:

Annual/Semi-Annual Reports

You will receive unaudited semi-annual reports and audited annual reports on a
regular basis from the Funds. In the Funds' annual report, you will find a
discussion of market conditions and investment strategies that significantly
affected the Funds' performance during its last fiscal year. In addition, you
will also receive updated prospectuses or supplements to this prospectus. In
order to eliminate duplicate mailings, the Funds will only send one copy of the
above communications to (1) accounts with the same primary record owner, (2)
joint tenant accounts, (3) tenant in common accounts and (4) accounts which have
the same address.


Statement Of Additional Information

Provides more details about the Funds and their policies. A current Statement of
Additional Information is on file with the Securities and Exchange Commission
and is incorporated herein by reference (is legally considered part of this
prospectus).


To Obtain Information:
-------------------------------------------------------------------------------
By telephone
Call 1-800-438-5789

By mail
Write to:
The Munder Funds
c/o PFPC Global Fund Services
P.O. Box 60428
King of Prussia, PA
19406-0428

On the Internet
Text-only versions of fund documents can be viewed online or downloaded from:
     Securities and Exchange Commission
     http://www.sec.gov

You can also obtain copies by visiting the Securities and Exchange Commission's
Public Reference Room in Washington, D.C. (phone 1-202-942-8090) or by sending
your request and a duplicating fee to the Securities and Exchange Commission's
Public Reference Section, Washington, D.C. 20549-0102. You may also obtain
information, after paying a duplicating fee, by electronic request at:
[email protected]

You may also find more information about the Fund on the Internet at:
http://www.munderfunds.com
-------------------------------------------------------------------------------

The Munder Funds, Inc.
SEC file number:  811-7346

PROLIFEY600
Investment Advisor:  Munder Capital Management
Distributed by:  Funds Distributor, Inc.



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