Cracked COD Modern Warefare 2 installation problem

I've downloaded COD Modern Warefare 2 cracked version from here.

Code (text):

elj-games.blogspot.com/2011/09/call-of-duty-modern-warfare-2.html

(This is not my site or I have no connection with the owner of this site)
During installation it requires Steam to install first. Then steam asking for product key before installing the COD MW 2. It has the crack folder at the end but I don't know how to bypass this activation. Can anybody tell me how to do it?

See original post by madusanka