Lara Croft and the Guardian of Light Trainer

[iNvIcTUs oRCuS]

It has nothing to do with some .NET Framework installed or not.
Also i can not give support for your version...
The trainer is coded for the skidrow release.
So you must use a fixed exe.

btw - i think its steam itself what is crashing the game. I think steam detects that something is changed in game code (thats how the trainer works) and exit the game.