D3dx9_34.dll Errors

Some of the more common d3dx9_34.dll error messages are listed below:

D3DX9_34.DLL Not FoundFile d3dx9_34.dll not foundThe file d3dx9_34.dll is missingD3DX9_34.DLL is missing. Replace D3DX9_34.DLL and try againD3dx9_34.dll not found. Reinstalling might help fix thisThis application has failed to start because d3dx9_34.dll could not be found

These errors typically appear when a software program, usually a game, starts. Occasionally, these errors display after a game is loaded but right before it starts. Some games that have been known to generate d3dx9_34.dll errors include Call of Duty 4: Modern Warfare, Crysis, Need for Speed Pro Street, Project 64 (an N64 emulator), Blazing Angels: Squadrons of WWII, and Savage 2: A Tortured Soul. In non-game applications, the error might appear before the program starts or before certain advanced graphics features of the program are used.

How to Fix D3dx9_34.dll Errors

Follow these steps in the order they’re presented so that you can try the simpler solutions first.

Need More Help?

If you don’t want to fix this problem yourself, see How Do I Get My Computer Fixed? for a full list of your support options, plus help with everything along the way like figuring out repair costs, getting your files off, choosing a repair service, and a lot more. The d3dx9_34.dll error might be a one-time problem and a restart could clear it up. It’s unlikely this approach will fix the problem, but restarting is always a good first troubleshooting step. Sometimes, though not often, the version included on the disc is a better fit for the program than the latest version available online.