That means it may be included in software packages or just simply used freely by anyone wishing to update their Direct X version on Windows XP or Windows 7 (32-bit).This package contains the Direct X 9.0c installer for Windows XP, the installer for Windows 7 and is compatible with the Direct X 9 redistributable from February 2010 and June 2010.This web installer package works with Direct X 9 graphics devices with WDDM 1.0 or higher drivers.
The Direct X 9 SDK is also available for download from this site (use the search function).
Direct X 9 Features include: Windows 7 comes with a newer version of Direct X but is fully compatible with all of the new features of Direct X 9.0c.
Additionally, in order to take advantage of the features of Direct X, you must ensure that you have installed a Direct X compliant video card.
For the same reasons noted in the preceding question, Direct3D 11 and related APIs are not available on Windows XP.
What changes were made to the Direct X runtime for Windows 8/7?