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DirectX 10 - Vista only

February 16, 2007
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Moldova.ORG -- When Microsoft shipped the last OS- Vista, it included the software to make it go well DirectX 10 is available exclusively for Windows Vista. Windows XP users are simply left to wait, but nobody knows how long, for a new improvement for its software. Microsoft has not developed DX10 for Windows XP, and will not implement it into XP.

Philip Taylor, Microsoft Senior Product Manager revealed that the lack of synchronization between the development process of XP and DX10 is also at the basis of Microsoft's decision not to make DirectX 10 available for Windows XP.

“Let’s consider the software development lifecycle, the DX10 lifecycle, and the history of Vista. The first step taken is to create a code branch for the new OS. XP RTM'ed in August 2001. DX10 itself wasn't fully baked when the initial branch was taken. DX9.L to support Aero and desktop composition took a bit of time,” Taylor explained, saying that DX10 is a direct result of the negotiations with the IHV community, negotiations that ended only towards the end of 2003.

“Given the new features in the driver model and hardware (with GPU task switching, GPU memory management and more) all of which require kernel support - hoisting a driver layer like that on XP is rewriting it to be Vista. FWIW, the MS hw developer page has the graphics logo requirements and it explicitly mentions these GPU features as being required. They are essentially hidden features that API programmers and end-users never see,” Taylor said.