OTTAWA, ONTARIO, November 21, 2007 - Harris Computer Systems (“Harris”), a leading provider of financial, customer and student information management software solutions for utilities, local governments and schools, today announced that it has completed the purchase of the business assets from DataNOW L.L.C. (“DataNOW”)

As a result of the purchase, Harris will continue to provide sales, development and support to all of the existing DataNOW customers as part of the InHance Division within Harris. All of the existing DataNOW staff will continue to operate and support all DataNOW customers from their existing facility in Twin Falls, Idaho.

“The acquisition of DataNOW builds upon our strategy of Customer Choice while expanding the Harris product offering with a complete suite of governmental solutions” says Ponder Wright, Executive Vice President, Harris.

“Harris is gaining a very seasoned group of employees with a solid track record of providing quality solutions for their customers for over 25 years. The DataNOW suite of proven governmental revenue solutions and a well received Payroll/HR system will strengthen our position in the governmental market space. We are very excited about the future of DataNOW within the Harris family.” continued Wright.

“Harris provides us with long term stability” said, Wade Bond, General Manager, DataNOW. “This will also open up our opportunities to take our products to a much larger market place. We are very pleased to be flying under the Harris banner.”

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.

About Constellation
Constellation acquires, manages and builds vertical market software businesses that provide mission critical software solutions. Constellation's common shares are listed on the Toronto Stock Exchange under the symbol "CSU".

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