Just to quote from
http://www.techsupportalert.com/free-vs-paid-av.htm
Scroll down to - The 2005 AV Tests Show Layering Works -
" My approach to these tests was similar to the one I used in 2004. The test data set was downloaded from the KaZaa P2P network though in this instance I used a sample of 104 files rather than the much larger set used in 2004.
I scanned this dataset with the top performing commercial scanner NOD32 together with the free AVG V7 anti-virus and Ewido anti-trojan. You can see the full results here
NOD32 found 53 malware products while AVG V7 found 51. This confirms the earlier finding that the best commercial AV scanners do detect more malware products than the best free scanners, though not a great deal more.
But here's the really interesting finding. When combined, the two free products AVG and Ewido between them detected 55 malware products.
That betters the figure detected by the commercial product NOD32. Yes, layering works. Better still, layering free products can end up giving better results than using expensive commercial products alone. "
Interesting reading though:
For commercial products I would go for NOD32, BitDefender.
For commercial products for Linux Fileservers I would go for Trend Micro™ .
For free non-commercial products AVG does the job fine & it's getting better.
Just my thoughts..
