No they are not viruses. There are a few files that you get when you do a search. Look out for a mpg which is 3,462 KB. And of course that old famous 449.3 KB which is usually a mpg also. Have you seen the 38.6 KB as an avi? These files are audio files and if you download them they are advertisments for porn. I wish LimeWire would created a new release which would allow us to cut certain file sizes. This will do the trick, but until they do this I think we are stuck with this crap. I've tried Block Host on these files and cut down a lot but never quite got rid of them all. But I had about a zillion Block Hosts. And I'm not sure if Blocking a Host is a good idea because they keep changing their addresses. But you can try this. I have gotten the 449.3K files down from 40 to 6, WOW!!!