Microsoft DirectX 11 is a group of technologies designed to make Windows-based computers an ideal platform for running and displaying applications rich in multimedia elements such as full-color graphics, video, 3D animation, and rich audio. The tool includes security and performance updates, along with many new features across all technologies, which can be accessed by applications using the DirectX APIs.
The Microsoft DirectX® End-User Runtime provides updates to 11 and previous versions of DirectX — the core Windows® technology that drives high-speed multimedia and games on the PC.
Direct3D 11 is out and ready for use by your game today to exploit the latest in video hardware features as well as current generation machines. This talk brings you up to speed with the API, offers tips on how to get your renderer up and running, presents key feature overviews, and shows how to deploy your application. Attending this talk is highly recommended if you are attending other the app presentations.
Note that the DirectX Runtime (Direct3D, DirectInput, DirectSound) is not part of this package as it is included as part of the Windows operating system, and therefore cannot be installed or uninstalled. Updating the DirectX Runtime is achieved by installing the latest Service Pack or obtaining a newer version of Windows PC.
Microsoft DirectX 11 is included in Windows 7 and Server 2008 R2. There is no stand-alone update package for this version. You can update DirectX by installing the service pack and update listed below. To upgrade DirectX further, you will need to upgrade your operating system.
The program is included in Windows 8, Windows RT, and Windows Server 2012. There is no stand-alone update package for the software. You can only install this DirectX version through Windows Update in Windows 8, Windows RT and Windows Server 2012.
The tool is included in Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2. There is no stand-alone update package for the app. You can only install this DirectX version through Windows Update in Windows 8.1, Windows RT 8.1 and Windows Server 2012 R2.
DirectX 11 and DirectX 12 are included with these Windows versions. Updates will be available through Windows Update. There is no stand-alone package for these versions of DirectX.
Microsoft DirectX 11 is licensed as Freeware for Windows PC (32-bit and 64-bit) operating system / platform from components without restrictions. DirectX11 is available to all software users as a free download!

Microsoft DirectX 9 is a group of technologies designed to make Windows-based computers an ideal platform for running and displaying applications rich in multimedia elements such as full-color graphics, video, 3D animation, and rich audio. The appincludes security and performance updates, along with many new features across all technologies, which can be accessed by applications using the DirectX APIs.
The latest version of the Microsoft Windows Gaming API delivers Microsoft's powerful new High-Level Shader Language (HLSL) and features its most-advanced suite of design tools for the development of rich multimedia elements such as full-spectrum color graphics, video, 3D animation and enhanced audio capabilities.
Some applications and games require DirectX 9 for PC. However, your computer includes a more recent version of Direct X. If you install and then run an application or game that requires the app, you might receive an error message such as 'The program can't start because d3dx9_35.dll is missing from your computer. Try reinstalling the program to fix this problem.'
DirectX 9.0 for Windows XP and Windows Server 2003 introduces significant improvements across its suite of APIs. DirectSound offers new audio capabilities, DirectShow accelerates video rendering hardware, and Direct3D enhances low-level graphics programmability with new programmable vertex and pixel shader 2.0 models. DirectX9 is supported in Windows 10, Windows 8, Windows 7, Windows Vista, and Windows XP!