BlueEagle,
It is usually tied to Svchost.exe. Without any details on your computer, there is not much more I can tell you.
The amount of information you gave amounts to a question in aviation terms like this:
"My friend has a problem with his airplane. The plane has a propeller on it. What do you think is wrong with it?"
Take Care,
Richard
P.S. If you are using WinXP, you can look at what all Svchost.exe does here: (But that is a stab in the dark since I do not know which OS you are using.)
Windows XP Home and Professional Service Configurations