Microsoft said its free program is not meant to cut into the business of commercial antivirus programs, by companies such as McAfee and Symantec, but will appeal to people who don???t already have security software on their computers. <a href="http://www.cbc.ca/technology/story/2009/09/29/tech-computer-windows-antivirus.html">http://www.cbc.ca/technology/story/2009/09/29/tech-computer-windows-antivirus.html</a> http://www.microsoft.com/security_essentials/