In a User Bulletin, Thomson Reuters indicates that Practice CS will no longer support the Windows 2000 OS and SQL 2000 Server (All Editions).
From User Bulletin 4607:
NEW SYSTEM REQUIREMENTS
With the next release of Practice CS version 2009.2.0, we will be discontinuing support for Microsoft® Windows® 2000 (all editions) and Microsoft SQL Server™ 2000 (all editions). Practice CS will no longer function on these operating systems. Please see the System Requirements under the Support section of our website at CS.ThomsonReuters.com for additional information on supported operating systems.
While most firms may be fairly current with the desktop operating systems and their backend server setups, there are some that are still running on Windows 2000 era Microsoft products.
Apparently the next update cycle for Practice CS will be in this coming November.
The current version is 2009.1.3:
Also, among the fixes coming down the pipe in that update will be one for client contacts integrated into Exchange Public Folders that are not seemingly synchronizing properly. This was the reason we were calling support in the first place.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book