I'm not sure if it'll re-create the same registry keys that PestPatrol found. Just try following the advise from http://www.theavonlady.org/theofpfaq/install/gsainstall.htm to hopefully no spyware will be installed, it says-
"During Gamespy's installation, you will be prompted as to whether you would also like a few spyware products, such as WebHancer and Gator, installed on your system. Unless you adore spyware, I highly recommend that you opt out and just say no when prompted."
After you've installed GameSpy without the 3rd party items (the spyware), reboot. Run a scan again using PestPatrol again to find out if it'll detect spyware again.
BTW, if a game will not show after doing the above, click on Gamespy>Options on Gamespy Arcade's menu bar. Under Options, click on the Games tab. On the left side is a Layout area. Click on the Browse button and manually select the game that is not listed.
With regards to your question on why Ad-aware didn't detect it as spyware:
Lavasoft team wrote: It is because even if the objects are there, the software in question has passed our Threat Assesment Chart (TAC) then we will not target them....
You can find the discussion here
Can't find any "statement" from Spybot S&D but there is a discussion in Spybot S&D official forum.
Just try installing it again but opt-out in any 3rd party stuff that it will try to install during installation process.
If PestPatrol will still detect it as spyware though you opted-out not to install the so-called spyware stuff, configure to exclude the items. That is if you installed GameSpy arcade without the 3rd party items.
Hope the above helps.
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