Just a warning. I used Norton Antivirus at home. Nothing gets through. Anything it finds, it cleans, quarantines, or deletes. At work, they use PC-cillin. I have never seen a more useless program. I've seen crappy little trojans show up that Norton flicks away with it's little pinky (personification!)... but PC-cillin constantly says, "Virus Found! Unable to Clean. Unable to Delete File." It's pathetic!