Free Anti-virus Software

I hope you're all using anti-virus software, and are having it self-update. I want to give a plug to Avast! Free Antivirus. I've been a user of Avast! for years, and have never gotten a virus on any of my computers. There has been the occassional trapping of a virus, but Avast! has stopped them all. If you're looking for a good, reliable, and free anti-virus software, I would recommend Avast!.