The trainer works fine for me, Steam version patched to latest (1.0.4.5 I believe). I play in offline mode, but I don't know how that would affect it.
I wait until I'm in-game to engage the trainer, then I use it as normal and it works flawlessly.
Windows 7 64-bit. Great work, it'd be awesome to have an infinite ammo option Haha. Seriously, great trainer and considering the game is a bit sloppily put together, it needs this external lovin' to make it into a more cohesive and enjoyable experience. Thanks!
Which trainer version are you using?
I'm trying to use the most recent trainers for the GoG version of the game which seems to be 1.0.4.1, and the trainer makes the noises like it is working but none of the effects happen.
I've been able to do some things on my own in art money, like infinite health/food/ammo, and adding skill points, but of course I have to find all the addresses over again each time I play.