How to resolve D3dx9_30.dll Not Found Error?

SYMPTOMS

D3dx9_30.dll errors typically appear when a software program, usually a game, is started. Occasionally, d3dx9_30.dll errors will display after a game is loaded but right before gameplay begins.

In non-game applications, a d3dx9_30.dll error might appear before certain advanced graphics features of the program are used.

There are several ways that d3dx9_30.dll errors can show up on your computer, you may receive one of the following error messages:

• "D3DX9_30.DLL Not Found"
  
• "File d3dx9_30.dll not found"
• "The dynamic link library d3dx9_30.dll could not be found in the specified path [PATH]"
• "The file d3dx9_30.dll is missing"
• "D3DX9_30.DLL is missing. Replace D3DX9_30.DLL and try again."
  
• "D3dx9_30.dll not found. Reinstalling might help fix this."
• "Missing component d3dx9_30.dll"
• "This application has failed to start because d3dx9_30.dll could not be found!"

Cause

Unlike many other dll errors which can have complicated causes and fixes, d3dx9_30.dll issues are caused in one way or another by a single issue - some kind of problem with Microsoft DirectX.

The d3dx9_30.dll file is one of many files contained in the DirectX software collection. Since DirectX is utilized by most Windows based games and advanced graphics programs, d3dx9_30.dll errors usually show up only when using these programs.

Resolution

Method1:Install the latest version of Microsoft DirectX 9. Chances are, upgrading to the latest version of DirectX 9 will fix the d3dx9_30.dll not found error.


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.

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. Don't worry, both versions of DirectX can be run side by side in Windows Vista.

Method2: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. Usually, if a game or other program utilizes DirectX, the software developers will include a copy of DirectX on the installation disc.Sometimes, though not often, the DirectX version included on the disc is a better fit for the program than the latest version available online.


Method3:Uninstall the game or software program and then reinstall it again. Something might have happened to the files in the program that work with d3dx9_30.dll and a reinstall could do the trick.

Method4:Restore the d3dx9_30.dll file from the DirectX 9 software package. If the above troubleshooting steps haven't worked to solve your d3dx9_30.dll error, try extracting the d3dx9_30.dll individually from the DirectX 9 package.

More Information

The d3dx9_30.dll error message could apply to any program that utilizes Microsoft DirectX, most commonly video games.

Some common games that have been known to generate d3dx9_30.dll errors include Medieval, Resident Evil, EverQuest, Splinter Cell Double Agent, ArmA: Armed Assault, World Series of Poker, Company of Heroes, and more.

Any of Microsoft's operating systems since Windows 98 may be effected by d3dx9_30.dll and other DirectX issues. This includes Windows 2000, Windows XP, and Windows Vista.

More other related dll files: dx7vb.dll, dx3j.dll, DWINTL20.DLL, DWINTL.DLL