The June 2010 release of the DirectX SDK is available. The DirectX SDK contains the DirectX Runtime and all DirectX software required to create DirectX compliant applications.
This DirectX SDK release contains updates to tools, utilities, samples, documentation, and runtime debug files for x64 and x86 platforms.DirectX SDK - (June 2010)
For additional information please see Microsoft DirectX Developer Center along with reviewing the Readme for last-minute updates.
Users wishing to install the DirectX runtime for the purposes of playing a game should instead install the DirectX Websetup. See related resources at the bottom of this page.