http://support.microsoft.com/search/...rchExtraQr y=
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Some programs seem to stop working after you install Windows XP Service Pack 2
(842242) - Discusses the behavior that occurs because Windows Firewall is turned on by default and blocks unsolicited programs. To make an exception for a program to run, add it to the exceptions list in Windows Firewall. Alternatively, you can open a port.
http://support.microsoft.com/default...b;en-us;842242
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Programs that are known to experience a loss of functionality when they run on a Windows XP Service Pack 2-based computer
(884130) - Discusses how some programs may not function as they did before you installed Windows XP SP2. This article lists known programs that may function differently.
http://support.microsoft.com/default...b;en-us;884130