ClamWin Free Antivirus. GNU GPL Free Software Open Source Virus and Spyware Scanner. Download Free Windows Antivirus. Stay Virus and Spyware Free with Free Software. - How You Can Help Its an open source virus program, so its cool. Granted it scans really slowly.
runs on linux too, of course its only really useful for an email server / similar idea to check attachments going to windows pc's
