If you're a tweaker and want to control what runs on your machine, consider ProcessGuard. The free version is enough for you to do that, and will stop DLL injection trojans too
www.diamondcs.com.au/processguard
Didn't have time to read the posts entirely too see if it was mentioned, but try not to use IE for browsing and you will prevent nearly all future problems. Good luck ! -- Gavin Coe DiamondCS Analyst »www.diamondcs.com.au