Geesh, the comments on this article, make me realize how pedantic (and pathetic) sounding a lot of my fellow geeks are. Sorry to tell you this, but for the large majority of the non-geek world, a virus is any form of malware that infects computers, regardless of its fundamental nature. The average Joe would look at your comments and say, "Worm? Trojan? Malware? I don't know what those are, but stop sending me viruses in my e-mail!"