1 - AVG Anti-Virus and Internet Security - AVG.com - 
AVG Antivirus and internet security protection for home and business. Products ranging from maximum protection, to basic antivirus protection available for free download.
http://www.avg.com/ -

2 - Antivirus and Antispyware Software - Kaspersky Lab - 
Shop for award-winning antivirus and antispyware software protection against viruses, spyware, trojans, worms, spam and hacker attacks at the Official Kaspersky Lab site.
http://www.kaspersky.com/ -

3 - 2383 - 
McAfee offers antivirus and computer security software for home PCs or corporate computer networks. Find out about current products, learn about Web and email ...
http://www.mcafee.com/ -

4 - 1654 - 
Offers a free antivirus software package for home, noncommercial use. Protects against viruses, worms, and trojans on disk, CDs, in email, and during browsing.
http://www.avast.com/ -

5 - CA Anti-Virus 2009 - Comprehensive AntiVirus Software Protection - 
CA Anti-Virus 2009 provides total protection against viruses, worms and Trojan horse programs. Protect your PC today. Buy Now for $39.99.
http://shop.ca.com/virus/antivirus.aspx -

6 - Antivirus software - Wikipedia, the free encyclopedia - 
ClamTk 3.08 free antivirus software running on Ubuntu 8.04 Hardy Heron ... An antivirus may also emulate a program in a sandbox, monitoring for malicious behavior. ...
http://en.wikipedia.org/wiki/Antivirus -

7 - Antivirus, Anti-Spam and Internet Security Software - Trend Micro USA - 
Trend Micro is a global leader in network antivirus and internet content security software and services with focus on outbreak prevention and ...
http://www.antivirus.com/ -

8 - Kaspersky Lab Anti-Virus 7.0 - 
Kaspersky Anti-Virus 7.0 is a fully integrated security solution that provides your computer with the most effective protection.
http://usa.kaspersky.com/products_services/anti-virus.php -

9 - 1628 - 
Offers free anti-virus, anti-spyware and anti-malware tools. ... Protection against viruses and spyware (antivirus and antispyware) ...
http://free.avg.com/ -

10 - Download FREE antivirus software - avast! Home Edition - 
Home Edition a multi-award winning antivirus program, which is your solution to ... antivirus Home Edition is available free of charge for non-commercial home ...
http://www.avast.com/eng/download-avast-home.html -