How do you identify the processes? If through task manager then unfortunately this tool tells you nothing, its cosmetics like a lot of windows utilities.
Download winpatrol 9.1 from http://www.winpatrol.com/
I use this neat little tool, the one that Microsoft couldn't be bothered to include, that gives you a very extensive information and control over processes AND, a bonus, it notifies you when a process is being added by malware or spyware.
This little tool enabled me to identify how someone had violated my privacy on my computer by showing me that a secondary logon session had been started with the svchost dll.
Task manager lists the svchost as a generic but not the specific sessions that employ its services.
All these things should have been supplied with Xp, Bill Gates is just a lazy old fart.