AmeriServe Logo

FOR IMMEDIATE RELEASE


Contact:    Samantha Crosby
            (972) 338-7302


                AMERISERVE COMPLETES ACQUISITION OF PROSOURCE


            DALLAS, May 21, 1998 -- AmeriServe Food Distribution, Inc., a
subsidiary of Holberg Industries, Inc., and ProSource, Inc. (Nasdaq:PSDS)
announced today the completion of the merger of the two companies.  The
transaction is valued at approximately $320 million.

            "The combination of ProSource and AmeriServe significantly
strengthens our position as one of the largest foodservice distributors in North
America," said John V. Holten, Chairman and CEO of AmeriServe. "With the
acquisition of ProSource now complete, we will continue our focus of providing
the best service to our customers at the most competitive price."

            As specified in the merger agreement, each share of ProSource's
outstanding common stock has now been converted into a right to receive $15.00
per share in cash. AmeriServe has appointed The Bank of New York as the paying
agent for the redemption of these rights, which will commence in the near
future. AmeriServe also refinanced all of ProSource's outstanding debt.
ProSource expects that its common stock will cease trading on Nasdaq when the
stock closes this afternoon.

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            AmeriServe is one of North America's largest foodservice
distributors. With the acquisition of ProSource, AmeriServe employs 8,500 people
with 1998 expected sales of approximately $9 billion. It serves 38,000
restaurants in the United States, Canada and Mexico, including Applebee's,
Arby's, Burger King, Chick-fil-A, Chili's, Dairy Queen, KFC, Lone Star
Steakhouse, Long John Silver's, Olive Garden, Pizza Hut, Red Lobster, Sonic,
Taco Bell, TCBY, TGI Friday's and Wendy's. AmeriServe is headquartered in Dallas
and will maintain an office in Coral Gables, Florida.

            Holberg Industries, Inc. is a privately owned, diversified service
company headquartered in Greenwich, Connecticut. Along with AmeriServe, Holberg
owns APCOA/Standard Parking, Inc., one of the largest operators of paid parking
facilities in North America. Holberg employs approximately 16,200 people, with
1998 expected sales of approximately $10 billion.

            

            Note regarding Private Securities Litigation Reform Act: Except for
historical information contained herein, this press release contains certain
forward-looking statements that involve a number of risks and uncertainties.
Actual results could differ materially from those projected in such
forward-looking statements. AmeriServe undertakes no obligation to update these
forward-looking statements to reflect events or circumstances after the date
hereof or to reflect the occurrence or non occurrence of anticipated revenue.


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