Antivirus softwares:
avast! Avira AVG Anti-Virus BitDefender BullGuard CA Anti-Virus
Cisco Security Agent Command AntiVirus DriveSentry (antivirus, antispyware and HIPS technologies) eSafe eScan Fortinet FortiClient End Point Security F-PROT F-Secure
G DATA AntiVirus InVircible Kaspersky Anti-Virus LinuxShield McAfee VirusScan
NOD32 Norman ASA Norton AntiVirus OPSWAT Panda Security
Protector Plus PC Tools AntiVirus Principal AntiVirus Protector Plus Antivirus
Quick Heal Anti-Virus Rising AntiVirus SecureIT Solo Antivirus Symantec End Point
Sophos Anti-Virus ThreatFire AntiVirus (formerly Cyberhawk)
Trend Micro Internet Security V3 (AhnLab) Vba32 AntiVirus ViRobot (Hauri) Virus Chaser
Windows Live OneCare

ZoneAlarm


Freeware

AntiVir PersonalEdition Classic (Nagware)
AOL Active Virus Shield (no longer available via AOL)
AVG Anti-Virus Free (Registerware, Nagware)
avast! Home (Registerware)
BitDefender Free version does not provide real time scanning
Comodo AntiVirus
DriveSentry Fully functional free version
F-PROT (for Linux, FreeBSD and DOS only)
HandyBits VirusScan Integrator
PC Tools AntiVirus Free Edition
ThreatFire AntiVirus (formerly Cyberhawk)
MWAV ToolKit Utility