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Fulton County Georgia Selects Advanced Utility Systems, a Subsidiary of Constellation Software's Harris Subsidiary, as its Customer Information and Billing Solution

Harris Computer Systems ("Harris"), a subsidiary of Constellation Software Inc. (TSX: CSU) is pleased to announce that Fulton County has selected Advanced Utility Systems, a wholly owned subsidiary of Harris, as its customer information and billing solution for Fulton County's 60,000 customers.

Fulton County is the most populous county in Georgia, and is the center of metro Atlanta. The County provides water service to customers in North Fulton and wastewater collection for customers in North and South Fulton including Atlanta.

The County based its software selection on the best overall comprehensive CIS, CMMS and IVR integrated solution to provide a wide range of functionality and flexibility. As prime vendor, Advanced Utility Systems has partnered with industry-leading subcontractors to provide a robust and uniquely integrated solution. Advanced's CIS Infinity will replace the County's existing mainframe based CIS solution and will begin implementation over the next few weeks.

"Advanced Utility Systems is extremely pleased to have Fulton County as a client and partner. Fulton County has a long and impressive history of providing superior service to their customers. We are excited to be a part of Fulton County's future success. At Harris, this is only one milestone in our long term partnership. We look forward to a long and successful partnership with Fulton County", states Steven Hammond, Executive Vice President for Harris' Advanced Utility Systems Business Unit.

Based on the current implementation schedule, CIS Infinity is expected Go Live in early 2009.

About Harris:

Harris is a leading provider of utility customer information systems (CIS), billing, and financial management software solutions. Since 1976, Harris has focused on providing feature-rich and robust turnkey solutions to public power and water markets as well as all levels of local government 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 http://www.harriscomputer.com, or call 888-847-7747.

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.

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.