It's probably GameShield IronWrap then which would make sense considering other T2 games use it. I wouldn't worry about Gameguard but if you want to check if it's installed it should be in your add remove programs list. Another way to check, you can search your registery for INCAInternet.Nothing on steam forums comes up and the listed drm is game shield. I have it installed still for some reason but dunno how to check, its not in the "programs and features".