
We've discussed this a lot here and most prefer nav. Nav has 2002, 2003 and 2005. Now I noticed a symantec corporate version. Any idea about that one?
Ok, a few weeks or maybe a month ago I was running nav 2003 and my system started acting strange. Ran a full scan and nothing was found. Ran that free trendmicro online scan, nothing was found. Ran AVG, 4-5 viri were found. :; wtf! nav 2003 with the latest updates found nothing.
So I got miffed at nav and uninstalled it, went back to just AVG. Ran spybot search and destroy off and on and each time it found and supposedly removed a dsi (something like that) exploit. After a reboot it was always back. Searched google and read a lot of sites. Overall most said the best av is http://www.kaspersky.com/downloads it removes on average from what I saw over 98% of viri. Norton was 80-95%. Of course it varies at each site who tested them, but kaspersky was always at the top. Panda was at or near the top on some tests, but on most I saw they had kaspersky better, or just didn't list panda. Or vice versa.
The average said the <font color=red>best free av</font color> is http://www.free-av.com/ FreeAV found about 85% of viri, AVG found 69-80%. It use to be better, but new viri are tougher and getting tougher. AVG had always been my old standby so these results dissappoints me.
I tried nav 2005, did a full scan and nothing was found. Ran AVG, nothing was found. Uninstalled nav again

Of course a test next week may have different results since the trojan/virus makers keep making new and tougher ones. But from my findings with kaspersky, I'm sticking with it for now. It is user friendly, just scans real slow when doing a full scan. Doesn't use as much resources as nav either. From what I can tell it uses slightly more than avg. Under task manager all I can read from it is kavsvc.
You can search forever on google finding what you need. Most searches go to a site selling an av. :;
Anyway, I'd suggest trying kaspersky. They have a 30 day free trial. Do a full scan and see. I'm sure glad I did.