Call of Duty: Modern Warfare 2 Message Board  

the game keeps crashing every time i use the trainer i've tried every trainer version anyone else have the same problem

Have you checked trainer troublesshooting? Link. (Disable antivirus, run it as admin/ under WinXP) compatibility, if you have Vista or Win 7 etc)

OK, I am having the same problem. I have read the Trainer Troubleshooting page. Just need someone to explain "run in compatibility mode" and "to run the trainer as Administrator"
Hope able to get some help here. Thank you.

yeah i am having the same issue i have did all the troubleshooting and same thing soon as i hit f1 it closes game

Just log in with an administrator profile, and not as a limited profile. This is the easiest solution rather to have set administrator privileges to each and every profile!