The xp-AntiSpy is a little utility that lets you disable some built-in update and authentication 'features' in WindowsXP. What's New:

There was a little bug in the connection limit patcher of the version 3.96-1.
This is now fixed and also the patching the connection limit on 64bit systems after the last patch day is now supported.

Download: xp-AntiSpy 3.96.2