Direct3D 9Ex, Direct3D 10, and Direct3D 11 are only available for Windows Vista and Windows 7 because each of these new versions was built to depend upon the new Windows Display Driver Model that was introduced for Windows Vista. This version of DirectX 9 includes support for Direct3D, Vertex Shader 3.0, DirectDraw, DirectMusic, DirectPlay and DirectSound.
Developers may include this version of DirectX 9.29 with their distribution according to the terms of the EULA, included with this download. This software download for Microsoft Windows operating systems greater than 9x is the DirectX End-User Redistributable Runtime offered by Microsoft.
