Serial Key Code How Do I Crack The Serial Key Code For F.E.A.R On PC?

How do I crack the serial key code for F.E.A.R on PC? - serial key code

So my friend recorded a CD to fear to install in her and I am on my computer, but I can not find a way to decipher the code number. I googled and so far I have tried several programs keygen to work but none of them. Does anyone really know how to decipher the code?