Support phases ending in the next 2 years

April 8th 2014 (2014-04-08)

Windows XP - end of support
- no more updates for this product
- includes XP x64 Edition
- last service pack for x86 was SP3
- last service pack for x64 was SP2
- ref: Microsoft Product Lifecycle Search
- ref: End of Support

Office 2003 - end of support
- no more updates for this product
- ref: End of Support

 

Edit:
Windows Server 2008 and Windows Server 2008 R2 no longer enter extended support on July 13th 2013, both of these products have had their mainstream phase extended to January 13th 2015.
The Microsoft Product Lifecycle Search page indicated this some time ago, but only recently has it been announced/confirmed.