I have a Avast Home Edition (free anti-virus, good kind) while i was downloading, Avast scanning my p2p file, incompleted file and completed file to make sure there no virus lurking around those file. it caught one while i was downloading and Avast warned me about the file i was downloading from p2p, so i cut off the file and use Eraser to 7 passes erase it. Avast save my computer life again....