Trying to run a game and you suddenly encounter the D3dx9_38.dll missing error? In the next post I’ll provide a quick guide that’ll enable you to fix this error as well as many other errors related to this file. I made it very clear and easy so I hope you’ll find it useful. If something is unclear, feel free to post your comments below.
This Dynamic Link Library module is part of the Direct3D Extensions which is part of Microsoft’s DirectX. The DirectX technology supports multimedia based programs such as PC games. It provides better performance and user experience (display, audio etc.).
Errors with this file are usually reported by gamers (Call of Duty, Lord of the Rings, and others), but users of other multimedia-rich applications may experience errors related to this dll as well. The most common error pops up when trying to run a game – many times right after installing it. Common error message: The program can't start because d3dx9_38.dll is missing from your computer. Try reinstalling the program to fix this problem.
The causes to this error
(1) When you’re using incompatible or corrupt drivers – usually display and/audio drivers.
(2) When the dll is missing, corrupt, or incompatible.
How to fix it
(1) Check the validity of your drivers and replace them if needed
Invalid display or audio related drivers can easily trigger this D3dx9_38.dll missing error. You need to detect and replace any invalid drivers with their latest compatible and official version.
Here is a little tip that’ll help you with that:
(1) Download this drivers scanner
(2) It’ll scan and check the validity of all your drivers
(3) By the end of the scan - open the Drivers report
(4) Are the display and audio related drivers valid?
(5) If NOT – replace them!
(6) Are there any other invalid device drivers?
(7) If YES – replace them as well.
(8) Restart your PC.
(2) Update your DirectX installation
Go to Microsoft’s official site, download and then install the latest DirectX installation.
Following these two steps fixes this D3dx9_38.dll missing error.