Microsoft released Windows XP SP3 to manufacturing on April 21, 2008. On Thursday, April 23 SP3 was made available for download to MSDN subscribers. This is the last Service Pack that will be released for Windows XP and contains the security fixes and NAP (Network Access Protection) Client that works with Windows Server 2008 in verifying the PC, before its allows to access resources on the network, meets the minimum security requirements set by the IT administrators.

If you are a MSDN subscriber, you can download SP3 now. You can also get more information on SP3 through the TechNet Forum for SP3.