|The first thing I would do would be to go into your browser and clean it out > tools>internet options>delete and select everything (this time) and OK... the longer it takes, the more junk.|
second go to control panel>add-remove programs, remove anything that is not yours, especially if it sounds like a game or a chat/IM program. If you are not sure about a name, google it first.
third either use task manager (as above) or download 'Prosess explorer' from microsoft, install and run it. It will show you MUCH more about every program that is running and will still allow you to stop it from running AND give you a better clue as to finding it to uninstall/delete it.
Restart, recheck what is running. re-run your antivirus/anti-spyware (somethings are easier to find when stopped)
If you are still having problems, try going to Webroot.com and using their free online scanner to see if it is clean. (I don't think it will remove without buying, but it will be a good double check (I like their antivirus with anti-spyware and they have a good deal on multiple licenses)
Most Important, Be Ruthless, If It Doesn't Belong, Get Rid Of It!!!