Joe, Housecall is run by Trend Micro Inc, the makers of PC-Cillin (the AV software I am using). I guess they get a few purchases as a result of people using Housecall.

My AV software (and perhaps all of the newer versions from the major makers) automatically check for new signature files when I am connected to the Internet and installs them for me so I have no need to do any checking. It seems pretty good to me (and not bad for a freebee either mine came bundled with a driver installation CD for a motherboard I fitted).

Jon