"games for windows live" is like a frontend for certain games that, amongst myriad other things, periodically checks your exe's status in an effort to protect multiplay etc from cheaters. when you use a trainer it will often crash your game to desktop or simply stop the trainer from working. I have seen it bypassed in some cases so i was just asking is all.
All times are (GMT -08:00) Pacific Time (US & Canada). Current time is 5:58:53 AM