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Microsoft DirectX is a collection of application programming interfaces (APIs) for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms. You can find that on the microsoft.Microsoft Windows, Windows Phone 8, Dreamcast, Xbox, Xbox 360, Xbox One, Xbox Series X and Series S, Linux (Gallium Nine) (DirectX 12 only, Exclusive to Windows Subsystem for Linux),
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If it for some reason doesn't work by just replacing the file, you might need to reinstall DirectX 9. Most of Microsoft “Windows” operating systems could be affected by an error caused by D3dx9_40.dll and the universal solution is to download a new D3dx9_40.dll-file.
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Other applications that utilize “Microsoft DirectX” are advanced graphic applications such as AutoCAD.ĭ3dx9_40.dll errors are associated with problems with “Microsoft DirectX” due to the fact that D3dx9_40.dll is one of many files that are required to function and to be in its right place, in order for “Microsoft DirectX” to work properly.īy downloading and reinstall the D3dx9_40.dll-file you can solve your problems that are caused by the malfunctioning file. Most errors are caused while trying to run games because games are the most frequent applications that require “Microsoft DirectX”. Alternatively, some programs, notably PC games, require that the DLL file is placed in the game/application installation folder.įor detailed installation instructions, see our FAQ.ĭ3dx9_40.dll related errors are common while trying to run applications that require “Microsoft DirectX” to be displayed properly. In the vast majority of cases, the solution is to properly reinstall d3dx9_40.dll on your PC, to the Windows system folder. Try installing the program again using the original installation media or contact your system administrator or the software vender for support.
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