Market Regulation Services Inc.

Market Regulation Services Inc.

December 18, 2006 16:39 ET

Market Regulation Services Inc.: Halt, Constellation Software Inc.

TORONTO, ONTARIO--(CCNMatthews - December 18, 2006) -



MARKET REGULATION SERVICES INC.

The following issue(s) have been halted by Market Regulation Services
Inc.

Company Name: Constellation Software Inc.

TSX Symbol: CSU

Reason: Pending news

Halt Time: 16:34 EST

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