Unlike modern DirectX versions, which are distributed via Windows Update as OS components, the June 2010 package contains the specific legacy DLLs (Dynamic Link Libraries) required for backward compatibility with older hardware abstraction layers.
It is fully backward-compatible and will not break your system. Many game launchers (Steam, GOG, EA App) even run it silently in the background.
: Used via PlayOnLinux or Wine to provide the necessary DLLs for Windows games running in compatibility layers. Why You Still Need It on Windows 10 and 11
If you need the (without web download during install), search for directx_Jun2010_redist.exe on Microsoft’s site — but the web installer is sufficient for most users.
: Errors mentioning d3dx9 , d3dx10 , or d3dx11 followed by a number.
