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Download DirectX 9.23.1350 Installer from Microsoft

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An updated version of DirectX 9 download for Windows is available at Microsoft.com now. This new upadted DirectX 9 version named as DirectX 9.23.1350 and will be replaced the old version DirectX 9C distribution.

You know that DirectX is the important Windows display technology that written with DirectX APIs, which handles important tasks and operations related to computer multimedia elements such as full-color graphics, video, 3D animation, and rich audio on Windows based systems.Originally, the names of these APIs all began with the word Direct, such as Direct3D, DirectDraw, DirectMusic, DirectPlay, DirectSound, and so forth. DirectX, then, was the generic term for all of these Direct-something APIs, and that term became the name of the collection. So, it is very important to always keep updating Windows DirectX components regularly.The DirectX software development kit consists of runtime libraries in redistributable binary form, along with accompanying documentation and headers for use in coding. Originally, the runtimes were only installed to the Windows system by high end games or explicitly by the user.

In this version of DirectX 9,the end-user installation pack includes all the latest and previous released important DirectX runtime components. Some of the DirectX 9 updates package includes the bi-monthly D3DX, XInput, and Managed DirectX components up to June 2008. Meanwhile, below show some major updates on DirectX 9.23.1350


Updates on the latest DirectX 9.23.1350 :


Significant Stability and Performance Improvements to PIX for Windows

PIX for Windows is significantly more stable, faster and easier to use. There are many improvements to capture and replay, the mesh viewer, the shader debugger, pixel history, and support for DirectX features.

  • Single-frame capture and full-stream capture are now more than twice as fast than the previous DirectX versions.
  • PIX now has a unified method of handling errors that halts capture or playback as soon as an error (such as system running out of physical memory) occurs. The error information is reported to the user and valid call information is recorded and shown whenever possible.
  • The shader debugger, mesh viewer and capture infrastructure are significantly more stable across different drivers and operating systems, including both 32-bit and 64-bit versions.
  • The shader debugger in the DirectX new version has much better handling of Direct3D 9 and Direct3D 10 multi-sampled render targets.
  • Instanced draws and DrawAuto calls are now supported in the mesh viewer, shader debugger, and pixel history.
  • Predicated draw calls are now respected in the mesh viewer.
  • The Device, Shader Resource and Blend State views now display Direct3D 10.1-specific information when applicable.
  • For Direct3D 10, swap-chain information (IDXGISwapChain) is now displayed in addition to the device information.
New Bitrate Options for xWMA Audio Compression


In addition to previously supported compression settings, the June release DirectX new version adds more and lower bit rate options to the xWMAEncoder tool, allowing users to achieve better compression. The default encoder bit rate has changed from 96000 to 48000 bits per second.

xAPO Effects Library

This release contains a new XAudio2 effects library (XAPOFX), implemented using XAudio2’s native xAPO format for real-time DSP(Digital Signal Processing) effects. The xapofx.lib library contains a mastering limiter, a new lightweight reverberation to complement the existing Princeton Digital Reverb, and a 4-band equalizer effect.

Before install DirectX 9 on windows based systems, it’s recommended that turn on System Restore feature to create a suitable restore point before installing because DirectX runtime cannot be uninstalled, so user only chance is to use System Restore to rollback the installation.


Download latest version DirectX 9:


Download Online Version

DirectX End-User Runtime Web Installer package can be downloaded from Microsoft Download Center, which requires user to pass Windows Genuine Advantage validation. Otherwise you can directly download the web installer dxwebsetup.exe for user who having problem to validate the system.

Download Offline Version

For user who wants to install DirectX 9 offline due to do not have internet connection during installation or need to reinstall the DirectX 9.0c core runtime, download the full version DirectX End-User Runtime standalone redistributable setup installer, directx_jun2008_redist.exe.

Meanwhile, DirectX 9.23.1350 supports Windows 2000; Windows Home Server; Windows Server 2003; Windows Server 2008;Windows Vista; Windows XP including Windows XP Tablet PC Edition. Both 32-bit and 64-bit Windows editions is supported. In the case Windows Vista, DirectX 9c is only provided for backward compatibility purpose as it’s officially using the version DirectX 10.

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