This is not a online support forum waiting for your issue. Do no keep 'bumping' the thread so you can get a answer.
The answer is GO TO the makers of Crysis website and look at the forums there. As for rebinding, if this was on DVD, there is a INSTRUCTION MANUAL that came with it. If this was downloaded, there is a README file in the directory where you installed it. I would suggest all three solutions.
As for your assumption that while this worked on a Win7 system, but not on a Win8, you also indicated this was the ONLY program/game having this issue. If the OS is having a problem, then ALL programs/Games would have the SAME problem. Just like if your actual ESC key was broken (say ripped out) that would affect ANY program you use, not just ONE.