Gears of War Message Board  

"This has the game's for windows live xlive framework integrated. Before you attempt to play and use this trainer you should make sure you have the latest xlive redistributable. Xlive scans the game's code for changes, and if it detects any, "it will crash the game or freeze." -anonymous

Guess they are trying to crack down on achievement cheaters. I could not give a damn about achievements, i just want to use my damn trainer without xlive being a Hitler.

EDIT:Fixed!, no more crashing problem while using trainer by downloading the latest "xlive redistributable" from windows. Works perfect again no problems.

Thats one solution but if your still having problems then i cant help you any further as my problem has been fixed with downloading latest xlive.