I just would like to stress it once again: There are different products going out of support soon:
On July 11, 2006 we will stop providing Critical Security Updates for Windows 98 SE and Windows ME.

For Windows XP SP1 we will provide Security Updates until October 10, 2006. After that date we will not provide any updates for SP1 anymore. I would like to remind you that this is two years after the release of SP2. We usually support Service Packs only for one year after the release of the follewong SP

If you need more information on the lifecycle, visit www.microsoft.com/lifecycle

Roger