avast free antivirus

Portable antivirus software, built to remove certain variant of virus.

VirusKeeper: advanced antivirus and antispyware tool

Free online antivirus to combat viruses, spyware and other Internet threats

Trend Micro OfficeScan Managed Antivirus Service. Ideal for home and businesses

Automated and simple to use AntiVirus software for home and businesses

Secure and easy-to-use Antivirus software for Windows Vista

Free Antivirus for Mac OS X. Real-time protection for virus, worms and spyware.

SMTP, POP3, IMAP4, WebMail, LDAP, remote admin, SSL, antivirus, anti-spam

A front end Gui for the excelent F-Prot Antivirus for DOS.

ClamWin Portable is the popular ClamWin antivirus packaged as a portable app.