A neighbor asked me to look at his pc, as he said he had a virus, and it kept locking up on him. It took me 4 hours just to get a virus scan to run. Had to keep restarting it due to lockups. The virus scan showed over 1000 viruses, 8 different worms. He had over 500 infected emails in his outlook inbox. His wife (who didn't live with him), had the same type problems, and took her pc to a local computer repair place. All they did is to reformat her hard drive and give her back her pc, and told her that she needed to reload all of her software. On the guys pc, I ran two different virus scan softwares, turned off system restore and cleaned that up, downloaded a dozen different worm fixers, ran adaware, then spybot (they found 3000+ problems), and after about 10hrs of work, saved his pc. Before I turned it over to him, I made him go buy mcafee antivirus and I installed if for him.
As far as I know, it is still up and running.