Valve explains why you keep installing DirectX
Apparently it’s Microsoft’s fault. Quelle surprise? I can’t say I’ve noticed this problem being too bad myself but there seems to be plenty of Steam users annoyed, in your typical Internet fashion, by repeated installations of the latest version of DirectX. In a post replyingto these complaints, Valve admin JMcCaskey claims the problem lies with DirectX’s helper library, called D3DX; there can be up to 40 different versions of this file which are tied to the actual compiler for the game....