One of the most common and encountered by the majority of users when dealing with multimedia elements is Microsoft's DirectX. The DirectX End-User Runtimes installer contains all of the components installed by the Web Installer in a single package and is recommended for those users that do not have an Internet connection during installation.A lot of computer programs require specific runtimes in order to work properly in other words, some software sometimes needs the presence of another application that is specially designed to support its execution.For information on obtaining DirectX 11 for Windows Vista or Windows Server 2008, see Microsoft Knowledge Base article 971644.Updating the DirectX Runtime is achieved by installing the latest Service Pack or obtaining a newer version of Windows.

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.The DirectX end-user installation includes the D3DX, HLSL Compiler, XInput, XAudio, and Managed DirectX 1.1 components.DirectX includes security and performance updates, along with many new features across all technologies, which can be accessed by applications using the DirectX APIs. Microsoft DirectX 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 Microsoft DirectX End-User Runtime provides updates to 9.0c and previous versions of DirectX, the core Windows technology that drives high-speed multimedia and games on the PC.

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