Can you play the Xbox 360 Call of Duty 4 Modern Warfare on PC

No that's why they tell you the game is for the Xbox 360 and they sell a different game for the PS3 and still another for the PC. For Nintendo Wii the even named it with a different name Call of Duty Modern Warfare Reflex Edition. Why would they make the different games if you could play them anywhere. They even make a special game for the MAC because the it can not play the PC game