So my wife screams "What's this system tool thingy? Looks like my computer is infected with a virus. Help!" And indeed somehow through no fault of her own Windows 7 premium was infected with a trojan that installed no less than 8 items in various places on the desktop including 2 registry keys. And here I thought Windows 7 Home Premium was secure. I guess not :( -- here's the software I used to delete the offending trojan called "System Tool" -- it worked well.