-snip-
Hm, I never played neither sleeping dogs nor COD2 on my computer. The thing is that I have received this copy of the OS from the university via MSDNAA and received a copy on my D:\ drive via an usb disk from one of my colleagues since he already downloaded it. So I just needed a new key from the university partner program with MS. Can it be that buddha.dll replicated it to my disk without somebody (antivir, etc.) knowing it? I remember that sometimes my colleagues played COD2 at the university in there spare time. I usually play LOL which is free to play.

I cannot explain it in a different way, because otherwise buddha.dll should be in a folder named "D:\CallOfDuty\buddha.dll" or something?!? Just as a guess.