Windows Xp Sevice Pack 1
Service Pack 1 (SP1) provides the latest updates to the Windows XP
Operating System. These updates are a collection of fixes in the
following areas: operating system reliability, application
compatibility, setup, and security issues. This service pack includes
fully regression-tested versions of the patches for all security
vulnerabilities that had been discovered in Windows XP up to the closing
date of Service Pack development. The following Microsoft Security
Bulletins are included in Service Pack 1.