Software & Apps Windows How to Fix D3dx9_35.dll Not Found or Missing Errors A troubleshooting guide for d3dx9_35.dll errors By Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated November 18, 2019 Windows The Ultimate Laptop Buying Guide Tweet Share Email D3dx9_35.dll issues are caused in one way or another by a single issue: some kind of problem with Microsoft DirectX. The d3dx9_35 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_35.dll errors usually show up only when using these programs. There are several different ways that d3dx9_35.dll error messages might appear, depending on where the error is being generated from. Many of the more common d3dx9_35.dll error messages are listed here. D3dx9_35.dll not found. Reinstalling might help fix thisD3DX9_35.DLL Not FoundFile d3dx9_35.dll not foundThe file d3dx9_35.dll is missingD3DX9_35.DLL is missing. Replace D3DX9_35.DLL and try againMissing component d3dx9_35.dllThis application has failed to start because d3dx9_35.dll could not be found D3dx9_35.dll errors appear when a software program, usually a game, is started. In non-game applications, a d3dx9_35.dll error might appear before certain advanced graphics features of the program are used or, like in many games, as soon as the program is started. The d3dx9_35.dll error message could apply to any program that utilizes Microsoft DirectX but it's most commonly with video games like The Witcher, Deal or No Deal: Secret Vault Games, Kwari, Guitar Hero 3: Legends of Rock, OGRE (a graphics rendering engine), Unreal Tournament 3, EVE, Dark GDK (a game development package), Battlefield 2, Call of Duty 4, nullDC (a Dreamcast emulator), Distant Guns, and more. Any of Microsoft's operating systems since Windows 98 may be affected by d3dx9_35.dll and other DirectX issues. This includes Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, and Windows 2000. How to Fix D3dx9_35.dll Errors Do not, under any circumstances, download the d3dx9_35.dll DLL file individually from any DLL download site. There are a number of different reasons that downloading DLLs from these sites is never a good idea. If you've already downloaded d3dx9_35.dll from one of those DLL download sites, remove it from wherever you put it and continue with the following steps. Restart your computer if you haven't already done so. The error might be a fluke or one-time issue and a restart could clear it up. It's unlikely this will fix the problem, but restarting is always a good first step. Install the latest version of Microsoft DirectX. Chances are, upgrading to the latest version of DirectX will fix the d3dx9_35.dll not found error. Microsoft often releases updates to DirectX without updating the version number or letter so be sure to install the latest release even if your version is technically the same. The same DirectX installation program works with all versions of Windows including Windows 10, 8, 7, Vista, XP, and more. It will replace any missing DirectX 11, DirectX 10, or DirectX 9 file. Assuming the latest DirectX version from Microsoft doesn't fix the d3dx9_35.dll error you're receiving, look for a DirectX installation program on your game or application CD or DVD. Usually, if a game or another 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. Uninstall the game or software program and then reinstall it again. There may be an issue with the files in the game or program that work with d3dx9_35.dll and a reinstall could do the trick. Restore the d3dx9_35.dll file from the latest DirectX package. If the above troubleshooting steps haven't worked to solve your error, try extracting the d3dx9_35.dll file individually from the DirectX package. Update the drivers for your video card. While it's not the most common solution, in some situations updating the drivers for the video card in your computer could correct this DirectX issue. Need More Help? If you're not interested in fixing 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 whole lot more.