This download is licensed as freeware for the Windows (32-bit and 64-bit) operating system/platform without restrictions. Many former parts of DirectX API were deprecated in the latest DirectX SDK and will be preserved for compatibility only: DirectInput was deprecated in favor of XInput, DirectSound was deprecated in favor of the Cross-platform Audio Creation Tool system (XACT) and lost support for hardware accelerated audio, since Vista audio stack renders sound in software on the CPU. DirectX includes security and performance updates, along with many new features across all technologies, which can be accessed by applications using the DirectX APIs. "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," he wrote on his blog.Microsoft DirectX 10 10 is a group of technologies designed to make Windows-based computers an ideal platform for running and displaying applications rich in multimedia elements such as full-color graphics, video, 3D animation, and rich audio.
Taylor also noted that it would take a tremendous amount of work if the company were to retrofit DX10 into XP. The 1st DX SDK supporting DX10 didn't appear until Dec 2005. The build that was demo'ed at WinHEC 2004 with the texture memory management was a very fresh build and wasn't feature complete - and that was April or May 2004. Heck, the Longhorn reset was in 2004 and DX10 wasn't done until later. Given XP shipped in 2001 and it was late 2003 when the DX10 design solidified - it should be obvious that 'what the OS was' was well beyond XP before serious DX10 work commenced. What other factors were in play?Īccording to Microsoft DirectX guru Phil Taylor, development for DX10 wasn't complete until late in Windows XP's lifecycle, and during the time of its development, things became clear that DX10 simply would not fit into XP. Some have attributed Microsoft's decision to be purely based on marketing, but that's not entirely the case. In order to get the most from their video cards, users would have to upgrade their operating systems to Vista. When Microsoft officially announced that DirectX 10 (DX10) would only be available for Windows Vista, many gaming fans yearning to be on the bleeding edge were upset.
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