As planned, Microsoft today retired Mainstream Support for Windows XP and Office 2003. However, for both products, Microsoft is not planning to retire Extended Support until April 8, 2014. If Redmond ends up releasing a fourth service pack for XP, it will retire support for SP3 (released April 2008) two years after SP4 is released, or in April 2014, whichever comes first. The same applies for Office 2003, which is also at SP3 (released in September 2007). In other words, most users don't have to worry for almost five more years. More at; http://arstechnica.com/microsoft/news/2009/04/windows-xp-mainstream-support-retired-but-no-need-to-worry.ars
