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My game won't open. Error: The program can't start because d3dx9_31.dll is missing from your computer

Anonymous
2012-08-18T20:13:32+00:00

So I have downloaded the game Sanatorium (Slender game) and It's downloaded and installed but whenever I try to open it, it says this "The program can't start because d3dx9_31.dll is missing from your computer." I'm using Windows XP. So I tried messing with compatibility and changed it to Windows 98/ Windows Me and it says "Runtime error 217 at 0041B209" I don't know what to do and it's very frustrating.

Windows for home | Previous Windows versions | Gaming

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  1. Anonymous
    2012-08-18T20:14:55+00:00

    And I tried to troubleshoot the compatibility and this is what it searched for me, "Programs+Compatibility+Application+Applications+App+Apps+Game+Games+Legacy+Crash+Crashes+Hang+Hangs "

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  2. Anonymous
    2012-08-24T22:54:46+00:00

    You need to run the DirectX installer included with the game, it should install the missing file.

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