Guys - I think my PC may be infected with a virus (Melissa, perhaps) due to a few strange files with .eml extension that have suddenly appeared.

Anyone know of a good, *free*, on-line virus checker? (like the sort of thing that used to be available through windrivers).

Any help in effectively diagnosing my system (unfortunately without any AV software) would be extremely gratefully received.

Cheers,

Gutted.