It works just fine, do the usual, update ya drivers, make sure the game is patched to the latest, if ur game crashes soon as u press F1 in menu, then u have the wrong trainer and\or patch, 4.17b, is the digital version for the latest patch, it has B in it cuz they fixed the original 4.17 trainer, if u using the disc version of the game, then choose the "4.17 retail".
If ur game crashes even WITHOUT the trainer, then u prolly have the same problem that i had, i updated my gpu driver, that caused my game to crash right after loading, i could play my old saves, but couldnt start a new game without it crashing, i disabled sli, and the problem was fixed.
Wut is it with people immediately thinking that "It's sum1 else's fault" instead of looking at wut problems they might have with their pc.
So to summarize, THE PROBLEM IS AT YOUR END, CH doesnt make trainers that dont work, if they do (one in a million chance), those problems get fixed fast.
Edit. Also, u can try running the trainer with admin, i use win7 64bit but it works atleast for me without admin.
[Edited by kuningasjokipuu, 11/3/2010 12:56:59 PM]