Okay, it's the time to share something with my Windows friends. I always said that to know the OS your have to know the files backing-up the system.
So here you are, a website to get you going. It is called http://exelib.com.
You can check and get to know the services running in the background on your Windows PC.
The most intrigue function is the hijack-this log analyzer. You can get more information if you post your log over there.