How can I install DirectX 9.0a on Windows XP and Windows 2000?

A. The simplest way to install DirectX 9.0a is to navigate to the Windows Update Web site at, click "Pick updates to install" from the left-hand pane, select the "DirectX 9.0a End-User Runtime" link from under the XP or Win2K section, then click Add and proceed with Windows Update as usual.

Alternatively, you can visit the DirectX Web site at and click Downloads from the left-hand site navigation menu. Select the "Get DirectX 9.0a Now" option, then download dxwebsetup.exe. After you download the file, run the file to download the files required for installation.

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