Constellation Software Inc.

Constellation Software Inc.

March 10, 2008 20:54 ET

Constellation Software Inc. Acquires Schoolhouse Software Inc.

TORONTO, ONTARIO--(Marketwire - March 10, 2008) - Constellation Software Inc. ("Constellation") (TSX:CSU) announced today that it has completed, through its wholly-owned subsidiary Harris Computer Systems ("Harris"), the acquisition of Schoolhouse Software, Inc. ("Schoolhouse") and its wholly owned subsidiary KnowledgeCore Software, Inc. ("KnowledgeCore").

As a result of the purchase, all Schoolhouse and KnowledgeCore customers and staff will become part of Harris School Solutions, the Harris business unit focused on delivering mission critical systems to K-12 school districts in North America. The Schoolhouse and KnowledgeCore staff will continue to operate from their existing facilities in Sacramento, California.

Harris School Solutions Executive Vice President Jerry Canada stated, "This acquisition represents a continuation of our strategy to expand our product offering of software solutions for school districts. Schoolhouse has an excellent reputation with food service directors and is a leader in back office administration tools. KnowlegeCore is the leading Adult Education Student Information System (SIS) in California. The addition of both the Schoolhouse and KnowledgeCore customer bases allows Harris to immediately gain a presence in a geographic area where we intend to expand."

"Schoolhouse will be Constellation's first acquisition in 2008", commented Bernard Anzarouth, VP, Mergers & Acquisitions for Constellation. "We are pleased with our continued expansion in the K-12 school market".

About Constellation:

Constellation's common shares are listed on the Toronto Stock Exchange under the symbol "CSU". Constellation Software is an international provider of market leading software and services to a number of industries across both the public and private sectors. The Company acquires, manages and builds vertical market software businesses that provide mission-critical software solutions to address the specific needs of its customers in those industries.

About Harris:

Harris is a wholly owned subsidiary of Constellation and is a leading provider of financial management and Customer Information Systems (CIS) software solutions. Since 1976, Harris has focused on providing feature-rich and robust turnkey solutions to all levels of local government, public power and water entities as well as school districts throughout North America. Harris' focus is on creating long-term relationships with our customers and ensuring that we meet the changing needs of our customers over time. For further information on Harris Computer Systems, please visit our website at, or call 888-847-7747.

Forward Looking Statements

Certain statements herein may be "forward looking" statements that involve known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of Constellation or the industry to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. These statements reflect current assumptions and expectations regarding future events and operating performance and speak only as of the date hereof. Forward looking statements involve significant risks and uncertainties, should not be read as guarantees of future performance or results, and will not necessarily be accurate indications of whether or not such results will be achieved. A number of factors could cause actual results to vary significantly from the results
discussed in the forward looking statements. These forward looking statements are made as of the date hereof and Constellation assumes no obligation to update any forward looking statements to reflect new events or circumstances.

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