This in the DOS days was king supreme.  FRISK Software was founded in 1993 by Fridrik Skulason, who first developed the popular F-PROT Antivirus (for DOS) in 1989 and the world\'s first heuristic behavior scanner in 1991.  Though he got his first virus definitions from John McAfee, he developed a superior product that even then was free for home users.  Since windows came around, I have kept watch on the F-protect line, but it has yet to win me over as the primary contender.

So bad that I wouldn\'t put it on my worst enemy\'s computer.  It slows the system down, often locks up systems as bad as a virus, and is so invasive as to be no better than a virus. I have a longstanding hatred of this product and company goin back to my first computer business during 1986-1992 ACS-West

Ineffective against mainstream viruses even in the DOS days and will often cause more harm than the virus itself.  When I worked for Sprint the word came down from corporate that McAffee would be removed from all PCs in the company.  It continually interfered with our in-house applications and cost more in support than it saved in virus prevention.  

Until a couple of years ago if the installation or uninstallation glitched, you had to manually search for hundreds of registry entries to manually get the thing of your computer.  They do provide an unistall tool now, but save yorself the hassel and never install it in the first place.

In 2010 Intel has made a bid for McAfee - puzzling except that they do have high level profesional products that seem to work well with internet servers if highly trained professionals, usually at a price from McAfee do the installation.  I am writing an article to publish on Yahoo that has my predictions on why they have done this and which direction they will in my opinion.  This does not alter my  opinion on their PC based protection suite.

Wow...was I ever fooled.  Their latest overhaul of MSE actually had me thinking maybe Microsoft finally did a good thing.  The interface is simple, the product is free, doesn\'t seem to have the drawbacks of Windows Defender, even gives AVG a run for its money on finding viruses and reacting to them, then the bomb dropped.  The idiots at Microsoft have it programmed to shut down completely if the computer hasn\'t been online after a predetermined time.  They punish you for not checking in with them by allowing viruses they know about invade your system just because they shut down MSE.  But what should I expect from a company that had entire teams clapping, patting themselves on the backs and believing the world would love a product like Windows Vista.
Highly over rated.  A good product, well designed, but not as effective as AVG or Avast.  I don\'t like software firewalls, and haven\'t seen this packaged without one, but again I\'m not looking that closely at a product that doesn\'t do the primary task as well as what I already use and recommend.
An offshoot of Clam and has a wonderfully innovative interface, but takes  24 hours or more to scan a drive that only takes 20 minutes on Avast, or an hour with AVG. Never finished the scan because enough was enough.