Windows XP Service Pack 1 (SP1) provides the latest security, reliability, and performance updates to the Windows XP family of operating systems. OS: Windows XP. Category: System Updates.

After the update, WGA notifications for XP will be the same as they are for Windows Vista service pack 1, said Alex Kochis, senior product manager in the Windows Genuine Advantage group ...

It does not matter, if you're running Windows 2000, XP or 2003 - WinFuture xp-Iso-Builder integrates the latest Service Pack or system files, that allow using unauthorized visual styles and more.