1. McAfee Security
With more than 60,000 computer viruses identified, and another 500 discovered each month, why take chances? VirusScan Online is the easiest, most convenient way to protect your PC from computer viruses like Nimda, SirCam, Klez, and recent high-risk threat Bugbear.
http://www.mcafee.com/
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2. AVG Antivirus software
Grisoft is one of the worlds leading providers of antivirus solutions with over 2 million satisfied users of its AVG Antivirus software.
http://www.grisoft.com/
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3. F-Secure Anti-Virus for Workstations 5.31
Instand download - The most comprehensive centrally managed anti-virus solution available for your corporate & home PC.

http://www.softwareoasis.net/399.htm
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4. Kaspersky Anti-Virus for Linux
Kaspersky Anti-Virus for Linux - most powerfull protection.

http://www.kaspersky.com/linux/
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5. Kaspersky Lab International Ltd.
Kaspersky Lab is one of the world's top anti-virus companies, and well known all over the world as one of the leaders in the development of advanced anti-virus technologies. They produce anti-virus defense systems for workstations, file servers and application servers, e-mail gateways, firewalls, and Web servers.

http://www.kaspersky.com/
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6. Symantec
Symantec, the world leader in Internet security technology, provides a broad range of content and network security software and appliance solutions to individuals, enterprises and service providers.
http://www.symantec.com/
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