| DLL File | DirectX Version | Purpose | |----------|----------------|---------| | d3dx9_43.dll | DirectX 9 | D3DX utility library (textures, meshes, effects) | | d3dx10_43.dll | DirectX 10 | D3DX10 utilities | | d3dx11_43.dll | DirectX 11 | D3DX11 utilities | | d3dcompiler_43.dll | HLSL compiler | Compiles shader model 2–5 code at runtime | | XAudio2_7.dll | XAudio2 v2.7 | Low-latency audio API | | XInput1_3.dll | XInput 1.3 | Handles Xbox 360 controllers | | D3DCSX_43.dll | Compute shaders | Helper functions for DirectCompute |
dxwebsetup.exe /silent Or for the redistributable: directx user runtime june 2010
Essential for backward compatibility; safe to install on all Windows versions from XP to 11; no performance downside. Report prepared for general technical reference. Last updated: 2026. | DLL File | DirectX Version | Purpose
Even on Windows 10/11, many older games will fail to launch unless this runtime is manually installed (e.g., error “d3dx9_43.dll is missing”). To install without prompts: Even on Windows 10/11, many older games will