I use windows 7 64 bit. I also figured out that it only crashes when i click on ok in the successful window. I tried to change my resolution, restart my pc, check my mw3 files, start the game in safe mode but just nothing works. I really want to use this with my friends.
I have the same issue and same OS, i have never had problems with injecting before but this time it crashes after i click ok when it says the inject was successful. hmmm tried everything so far no luck.
For those of you whos game crashes on cant inject i just figured out a simple solve: search in the start menu for data execution prevention and add iw5mp.exe to the exeptions list. It works fine for me now
Wow thanks this worked, never had to do this before for injecting lol. Thanks a lot!