Your computer is infected. Here is one of the few ways to remove the virus and stop it from running.
1. Go to start button
2. Click run and type msconfig (if you are running vista, type msconfig on the box that says start search)
3. Go to services
4. Uncheck all the services that you know for sure are virus and non-essential programs. If you don't know if the services are required, go to http://www.processlibrary.com/ and find out whether or you need it.
5. Do the same thing for the running services on "Start up" tab.
6. Click ok
Restart the computer and follow these steps:
1. Go to start
2. Click control panel
3. Click "Add/Remove Programs"
4. Look for the program that identifies with virus on the list and remove it.
Finally, go to C: and delete the folder associated with virus.
Good luck!