Anti-Virus software
http://www.sophos.com/
Sophos's anti-virus and anti-spam software protects business computers against viruses, spyware, adware, Trojans, and spam.
http://daol.aol.com/
The AOLŪ Safety and Security Center is the most comprehensive set of free, automatically updating security tools.
http://www.zonelabs.com/
Developers of ZoneAlarm, a free, dynamic, application-level personal firewall, and of TrueVector technology for real-time Internet traffic information and online security.
http://www.f-secure.com/
F-Secure Corporation protects consumers and businesses against computer viruses and other threats from the Internet and mobile networks.
http://www.bitdefender.com/
Antivirus BitDefender. Complete Solutions to protect your business and secure your computer from the latest viruses.Offers a variety of antivirus products, including specialized handheld device, peer-to-peer, and email scanners. Antivirus Available for download.