Free for personal use. Virus 'scanner integrator'. After performing an auto-search for installed virus scanners, it will scan your files using all found installed virus scanners. This can be useful, since some antiviral programs are good for one type of viruses, other programs for other viruses.
Size: 289KB
BlastBack was designed to allow users to help out fellow users that are infected with the MSBlast (and variants) worm by sending them a message (via the Windows' Messenger service) telling them that they appear to be infected with MSBlast as their machine attempted to connect to port 135.
Provides real-time scanning, where it resides in memory and checks your programs for viruses as they are run, as well as on-demand scanning for viruses. You can also schedule your scans. It automatically updates itself through the internet.
*Note that you have to activate your copy as well as supply your email address to get and use this software.
F-Prot Antivirus for DOS, Linux and BSD (FreeBSD, OpenBSD and NetBSD) is free for personal use on personal workstations. (Note: these are separate downloads; scroll down on their page to find the link appropriate for your system. Also note that the Windows and Solaris versions are not free.)