As long as you have them as install files, they should install fine on his computer. If you installed them on your computer, then burned their installation folders to the cd... then that's why they're not working.
And the latest avg free, I just downloaded, didn't get a key, it automatically assigns it while installing. I know the older version, you'd have to get a key through email to install it. You might try downloading the newest version and see if that fixes that problem.
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