User blog comment:G0LD3NF1RE/Dawnguard encounters issues with Playstation/@comment-98.244.153.127-20120901214549/@comment-1630756-20120901220811

You don't code this stuff with 1s and 0s, you write it in a respective coding language. Dawnguard was written for Xbox 360 and PC, which are both Windows based and so both share similar scripting; PS3 on the other hand is written in a different language. (Can't remember which is which.) Also, Microsoft payed for 30-day timed exclusive, not exclusive.