http://blogs.msdn.com/b/mikewasson/archive/2009/01/11/windows-7-sdk.aspxThe Windows SDK for Windows 7 is available for download! http://www.microsoft.com/downloads/details.aspx?FamilyID=a91dc12a-fc94-4027-b67e-46bab7c5226c&amp;DisplayLang=en Updated documentation for Media Foundation is also live on MSDN: httpen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/mikewasson/archive/2009/01/11/windows-7-sdk.aspx#9309176Mon, 12 Jan 2009 22:17:24 GMT91d46819-8472-40ad-a661-2c78acb4018c:9309176MikeWasson<p>AFAIK, there is no plan to support the new features downlevel. (The only exception is OPM which is already supported in Vista but was released as a public API.)</p> <p>Thanks for your interest! For Win7 the main areas to note are:</p> <p>- Highlevel playback API</p> <p>- Audio/Video Capture</p> <p>- Expanded format support</p> <p>- Source reader / sink writer provide a different model for processing A/V data.</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=9309176" width="1" height="1">http://blogs.msdn.com/b/mikewasson/archive/2009/01/11/windows-7-sdk.aspx#9306872Mon, 12 Jan 2009 07:25:55 GMT91d46819-8472-40ad-a661-2c78acb4018c:9306872Anonymuos<p>Hello, I wrote some of the the WP article on Media Foundation. (<a rel="nofollow" target="_new" href="http://en.wikipedia.org/wiki/Media">http://en.wikipedia.org/wiki/Media</a> Foundation) Will the Windows 7 Media Foundation features be available on Vista?</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=9306872" width="1" height="1">