Ash

Hi i have a problem with the pc version. It comes up with directX is needed to play the game when i go to start the game up. I have been downloading mods for the game and think that i have maybe deleted the folder where the directX has to to go to. Could somebody help me because it doesnt seem to work if i download directX again it says its downloaded but doesnt seem to be in the system could somebody help me any suggestion would help thanx