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Direct3D D3DX DLLs

There have been issues with DirectX since the February 2005 update relating to the D3DX dll library files. You can no longer distributes apps without the DirectX runtime and expect them to work.

Windows XP users who keep their machines up to date should all have DirectX 9.0c installed but not the D3DX dlls so will get errors about missing d3dx9_24.dll, d3dx9_25.dll, d3dx9_26.dll, d3dx9_27.dll, d3dx9_28.dll, d3dx9_29.dll,d3dx9_30.dll,d3dx9_31.dll and d3dx9_32.dll. In addition XINPUT dlls may be missing (this is the Xbox controller system). Unfortunately the end user is not automatically downloading the new dlls. The best solution is to distribute the DirectX runtime with your app. however if you are providing your app. as a download this could increase its size. From the June 2005 release Microsoft solved these problems somewhat by allowing the developer to create a minimal installer that just updates the D3DX dll. You could also of course just include the dll. although this is against the agreement (EULA). Another solution is to forward users to the Microsoft DirectX end user runtime download (see the From Microsoft links below).

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