Windows XP Services descriptions

Since it wasn’t obvious to me where this document was, here is a link to a Microsoft page describing Windows XP services with descriptions.

http://www.microsoft.com/technet/security/guidance/serversecurity/tcg/tcgch07n.mspx

There is also a similar document for Windows 2000

http://technet.microsoft.com/en-us/library/bb742605.aspx