Updating AVG Free antivirus

i've been using AVG Free antivirus for quite a while now, and i quite like it. i have a habit of updating it online instead of downloading the updates and applying them manually, so when anyone asked me if i had updates i always answered that i didn't.
recently, however, i needed to do something in my registry, and saw something related to AVG updates there. i didn't pay it too much attention until i wanted to update a fresh install of AVG Free on two computers (my brother's, which rarely goes online, and mine).
i was going to update mine online then manually download the updates, when i realized: the updates had to go somewhere before they were applied, so i started searching. i found the update files at C:\Documents and Settings\All Users\Application Data\Grisoft\Avg7Data\upd7bin. Best of all, the update files weren't deleted when they were applied (note: some people will see this as an annoyance), so i could use them for my brother's computer!
Guess we learn something new everyday.