What it is
Download the full DirectX Redist (June 2010) package from Microsoft . Extract the package into a temporary folder.
Place the 64-bit version of the DLL into C:\Windows\System32 . d3dx3 30dll new
I'll search for information on this specific DLL file. search results provide a good starting point. I have information about the file, causes of errors, and solutions. I need to elaborate on these points and structure the article. I'll also need to clarify the typo in the keyword. I'll open some of the most relevant results to gather detailed information. results provide a good amount of information. I'll structure the article with an introduction clarifying the typo, sections on what the file is, common causes of errors, detailed solutions, warnings about third-party downloads, and a conclusion. I'll cite sources from Microsoft Q&A, Baidu Baike, and other relevant pages. additional search results provide more context. I'll now write the article, organizing it with clear sections and practical advice. I'll cite the relevant sources throughout. are likely here because you encountered the "d3dx9_30.dll" error on your computer—and possibly stumbled upon the misspelled query for "d3dx3 30dll new". This guide is the definitive resource to help you identify, fix, and permanently resolve that error using safe, recommended methods.
Place the 32-bit version of the DLL into C:\Windows\SysWOW64 . Place the DLL into C:\Windows\System32 . Restart your PC to finish the process. Summary Checklist What it is Download the full DirectX Redist
Instead of hunting for a "new" d3dx9_30.dll , the safest and most effective approach is to use Microsoft's official methods to repair or reinstall the entire DirectX component, which will automatically provide all the necessary files, including the one you need.
and attempt to launch your game or application again. I'll search for information on this specific DLL file
Uninstall the game or program showing the error, restart your computer, and install it again. This often replaces missing DLLs.
Let’s clear up frequent myths:
Downloading individual DLL files from unofficial sources carries massive security risks: