You need to download SmitfraudFix at http://siri.urz.free.fr/Fix/SmitfraudFix.zip and run the cmd file in that. Follow the instructions
I am running windows 2000 professional with Internet explorer 6.0. When I open up a browser window, a pop-up with a tool that I have never seen before, System Integrity Scan Wizard. Is this a microsoft program or have I have downloaded this accidently?