working 100% fine. crashes upon activation are likely version problem and/or something blocking the injection of the trainer.
sometimes the games poll the keyboards and the trainer doesn't get much scan time to see if you press a certain key.
maybe run the trainer, run the game, alt-tab out so you can see the trainer, then press F1. see if that helps=
other than that i have no explanation-
I disagree, if you look at the posts about 80% of the people are having problems with it crashing. I know my game only crashes while the trainer is on, something is wrong with the trainer..
Most people that post here post because they have a problem. If someone is getting the trainer to work, then they really have no reason to post here other than trying to get other users how to use the trainer properly. If you want to look at statistics based on download and how many people validate the trainer, there are way more people that have the trainer working properly than those that do not suggesting that something is wrong on your PC.
The most common cause is improper setup of computer security (see link in signature for proper way to secure your Windows PC). Otherwise please visit the Trainer Troubleshooting guide and follow all steps to the letter (yes all of them regardless of how much you think that you're right and its wrong).