If you check again, that website lists many versions of the firewall.
Be sure you are clicking on the link to download Comodo Firewall 2.4.18.184 as a 7.8mb file called Setup.exe.
Some later versions of Comodo did include a virus program; the older one I referenced does not.
TomGuy, could you please send me a link directly to the download site? When I clicked on your link it just gave information about the product and then sent me to a download site for an anti-virus program.