hey just to let you know i was having problems with getting the trainer to work and randomly chaged the c&c3.exe compatablity to vista and the trainer works fine for me it works for me so it might work for you
1. Check you have the right verson of the trainer for your game. 2. Esxtract it into where the game has been installed. 3. Run it from there and press the activate button whille in game if that needs to be done.
If it aint working try.
1. Change compat mode to xp. 2. set to admin.
They usualy work for me. I havent tryed the trainers yet. Cause I just got cnc3 back to me.