Missing D3DX9_40.dll error solution for Windows

Please read the instructions carefully before you download the D3DX9_40.dll.Take the proper steps to safely clean and repair windows errors.

1. Where should this file go? After you download D3DX9_40.dll on your machine, paste it in directory where it missing, and also copy it to

Windows 95, 98, ME C:\Windows\System
Windows NT, 2000 C:\WinNT\System32
Windows XP, Vista, 7, 8 C:\Windows\System32
64-bit Windows C:\Windows\System64

If you can't find windows directory try:
a. Press and hold Windows key on your keyboard, then press button R.
b. Enter the command "cmd" and press Enter
c. In a command window enter the command "set systemroot" and press Enter. It will display system directory.
2. Go to "start" ==> "run" and type "regsvr32 D3DX9_40.dll" to register the file to the system.

File Information
  • NameD3DX9_40.dll (D3DX9_40.dl_)
  • CategoryOperating System > dll
  • Description

    Direct3D 9 Extensions

    Copyright � Microsoft Corp. 1994-2007

    Microsoft� DirectX for Windows�


  • Filenamed3dx9_40.zip
  • Filesize1.77 MB
  • Filetypezip (Mime Type: application/zip)
  • Rating 5 / 5 , 49392 rating
  • MD5: 9d524d329b0ebc8b2733fc94f861526c
  • SHA1: 81d9e446124c8eb9a0715e61e780bf254c343cd0
  • SHA265: $5$rounds=5000$dlldownloadsyste$IYIZPcqYSlaOz2uUDgaYFRlifi46vT927A4SqS/N.O7

Join the Discussion:

Popular Dlls:

Need Help? Find us at facebook

All possible solutions

Got computer error message like:

"D3DX9_40.dll crash"
"bad image"
"error loading"
"D3DX9_40.dll was not found"
"the procedure entry point D3DX9_40.dll error"
"D3DX9_40.dll could not be located"
"Access Violation"
"Cannot register D3DX9_40.dll"

at startup or shutdown or run program?
No "missing dll" anymore - Repair dll errors - How to fix windows dll corrupt on your windows xp,vista,2000/2003,win7, win8,win10

  • Download and install D3DX9_40.dll.
  • Download and install the latest update.
  • Install windows updates automatically/regularly, allow Windows check updates in the background.
  • Reinstall the application.