I also agree that u guys should look at the resource problem, using F-Prot today who must be the masters on using almost no resources 9MB all in all.
But I like to support a free alternative and so far u guys [ at ] comodo seems to have the right spark here in the forums.
Another suggestion must be a simpler way of sending suspicious files to u guys, take a look at this web page how F-Prot does it, very simple and easy.
http://www.f-prot.com/virusinfo/submission_form.htmlMaybe a link to a page like this from inside the program?
Keep up the spirit people[ at ]comodo and keep answering your "free" costumers and u will build a great community around your products.