This is an important security note for advanced users. The original June 2010 runtime and its DLLs are digitally signed using the SHA-1 hashing algorithm. SHA-1 is now considered deprecated and insecure due to known weaknesses.

: Installing this usually resolves "missing DLL" errors like d3dx9_43.dll d3dx10_43.dll XAudio 2.7 Gaming Stability

Even though DirectX 12 is the standard today, many older applications depend on libraries from the package. This comprehensive guide explains what this package is, why it is essential, and how to download and install the full version from Microsoft in 2026. What are the DirectX End-User Runtimes (June 2010)?