Something may have happened to the files in the program that work with d3dx9_30.dll and a reinstall could do the trick.ĥ. Uninstall the game or software program and then reinstall it again. Sometimes, though not often, the DirectX version included on the disc is a better fit for the program than the latest version available online.Ĥ. Usually, if a game or other program utilizes DirectX, the software developers will include a copy of DirectX on the installation disc. Assuming the latest DirectX version from Microsoft doesn't fix the d3dx9_30.dll error you're receiving, look for a DirectX installation program on your game or application CD or DVD.

Don't worry, both versions of DirectX can be run side by side in Windows Vista.ģ. Note: Are you a Windows Vista user with DirectX 10? Your game or program may still need DirectX 9 files to run properly so give the installation a try.

Note: Microsoft often releases updates to DirectX 9 without updating the version number or letter so be sure to install the latest release even if your version is technically the same. Chances are, upgrading to the latest version of DirectX 9 will fix the d3dx9_30.dll not found error. Install the latest version of Microsoft DirectX 9. It's unlikely this will fix the problem, but restarting is always a good first troubleshooting step.Ģ. The d3dx9_30.dll error might be a fluke or one-time issue and a simple restart could clear it up completely. Restart your computer if you haven't yet done so. Note: If you've already downloaded d3dx9_30.dll from one of those DLL download sites, remove it from wherever you put it and continue with the following steps.ġ.

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