Missing d3dx9_42.dll error solution for Windows

Please read the instructions carefully before you download the d3dx9_42.dll.Take the proper steps to safely clean and repair windows errors.

1. Where should this file go? After you download d3dx9_42.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_42.dll" to register the file to the system.

File Information
  • Named3dx9_42.dll (d3dx9_42.dl_)
  • CategoryOperating System > dll
  • Description

    Direct3D 9 Extensions

    Copyright © Microsoft Corp. 1994-2007



    D3dx9_42.dll is a file that is part of DirectX software. Microsoft DirectX is a collection of application programming interfaces (APIs) for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms.


    Errors related to d3dx9_42.dll


    Rocksmith(a music video game produced by Ubisoft) won't launch with D3DX9_42.dll, CDLC not working


    Uninstalling vcredist and restart your computer(from official customsforge fourm, topic 25877). If this not working, download dll at this page, be sure that the file is saved in the Rocksmith 2014 root folder and NOT the DLC folder.



    Betrayal - Path of Exile(Eighth expansion for Path of Exile, a free online-only action RPG under development by Grinding Gear Games in New Zealand) got error:
    "PathOfExileSteam.exe-Bad Image
    C:\WINDOWS\SYSTEM32\d3dx9_42.dll is either not designed to run on Windoes or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support. Error status 0xc000012f"
    you may be interested: poe decay (Decay is a debuff which causes affected targets to take chaos damage over time)


    Extract Aug2009_D3DCompiler_42_x86 and Aug2009_d3dx9_42_x86, and then copy those extracted files to GarenaPOE/GameData/Apps/POE. (Replace all existed files)



    Artificial Academy error


    Download and register dll at this page



    When you try to run Assassins Creed Brotherhood, a window will popup

    System error
    The program can't start because d3dx9_42.dll is missing from your computer
    Try reinstalling to fix the problem


    Copy file download this page to c:/ Windows /SysWOW64


    Quick solutions:

    Puzzle Quest 2 - updating microsoft active X, if this not helpful, download this software from other source and reinstall it.


  • Filenamed3dx9_42.zip
  • Filesize831.35 kB
  • Filetypezip (Mime Type: application/zip)
  • Rating 5 / 5 , 405394 rating
  • MD5: 34cd18cf50bd6f121b80e9d0b626bf1d
  • SHA1: af942b427a4aeae31f90dde7f3fd25c45d0596da
  • SHA265: $5$rounds=5000$dlldownloadsyste$eEOeVeGr56AanhBsiNXXhi/ePJs3HHvZUlQCKZzVocC

Missing dll most recent download:

d3dx9_42.dll vcredist_x86.exe scph1001.bin lame_enc.dll xinput1_3.dll msvcr100.dll d3dx9_43.dll d3dx10_43.dll msvcp110.dll msvcp120.dll msvcr110.dll xlive.dll msvcr110.dll avformat-55.dll

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All possible solutions

Got computer error message like:

"d3dx9_42.dll crash"
"bad image"
"error loading"
"d3dx9_42.dll was not found"
"the procedure entry point d3dx9_42.dll error"
"d3dx9_42.dll could not be located"
"Access Violation"
"Cannot register d3dx9_42.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_42.dll.
  • Download and install the latest update.
  • Install windows updates automatically/regularly, allow Windows check updates in the background.
  • Reinstall the application.