Sweet! I've been looking for an open source anti-virus scanner for Windows for quite some time, and I think this is the first. Thanks for the link.
For you open source freaks out there who want (or need) to use Windows, stay virus free, but only use open source software (besides your OS), there is a new piece of antivirus software out there. ClamWin is a Windows port of the well-known ClamAV, released under the GPL, and it works very well. Besides your own use, it's also good to have a free/legal solution to those house calls where your friends/neighbors/family has a virus but doesn't want to buy AV software.
Check it out at the ClamWin website.
Re: Free (as in Freedom) Antivirus Software for Windows