Feb 20, · The Microsoft DirectX® End-User Runtime installs a number of runtime libraries from the legacy DirectX SDK for some games that use D3DX9, D3DX10, D3DX11, XAudio , XInput , XACT, and/or Managed DirectX Note that this package does not modify the DirectX Runtime installed on your Windows OS in any way. Jul 13, · DirectX is available as a free download on our software library. The most popular versions among DirectX users are , and This download was checked by our antivirus and was rated as clean. DirectX is compatible with Windows XP/7 environment, bit version. The software is categorized as System Utilities/5().