Help explaining some new services in XP

[cumminbk]

I have noticed several new services running in my xp sp2. Could someone help explain what they are for and which programs/updates created them?

Windows Service Pack Installer update service

Windows Driver Foundation - User-mode Driver Framework

Windows Presentation Foundation Font Cache 3.0.0.0 (is this from NET. 3.0?)

Thanks

[neo]

Windows Driver Foundation - User-mode Driver Framework

Windows Presentation Foundation Font Cache 3.0.0.0 (is this from NET. 3.0?)

1st one from Windows Media Player 11 and Second one from .NET 3.0

[cluberti]

Windows Service Pack Installer update service

Enables Windows update to finish up the post-reboot tasks - you need this if you use Windows Update or install updates that require a reboot.