Direct X 9.22.1284 Recommended also Windows Vista ???

i See now Direct X 9.22.1284** and* System Requirements

<b>Supported Operating Systems: </b>Windows 2000; Windows 2000 Advanced Server; Windows 2000 Professional Edition ; Windows 2000 Server; Windows 2000 Service Pack 2; Windows 2000 Service Pack 3; Windows 2000 Service Pack 4; Windows 98; Windows 98 Second Edition; Windows Home Server; Windows ME; Windows Server 2003; Windows Server 2003 R2 (32-Bit x86); Windows Server 2003 R2 Datacenter Edition (32-Bit x86); Windows Server 2003 R2 Datacenter x64 Edition; Windows Server 2003 R2 Enterprise Edition (32-Bit x86); Windows Server 2003 R2 Enterprise x64 Edition; Windows Server 2003 R2 Standard Edition (32-bit x86); Windows Server 2003 R2 Standard x64 Edition ; Windows Server 2003 R2 x64 editions; Windows Server 2003 Service Pack 1; Windows Server 2003 Service Pack 2; Windows Server 2003 Service Pack 2 x64 Edition; Windows Server 2003 x64 editions; Windows Server 2003, Datacenter Edition (32-bit x86); Windows Server 2003, Enterprise Edition (32-bit x86); Windows Server 2003, Standard Edition (32-bit x86); Windows Server 2003, Web Edition; Windows Server 2008; Windows Server 2008 Datacenter; Windows Server 2008 Datacenter without Hyper-V; Windows Server 2008 Enterprise; Windows Server 2008 Enterprise without Hyper-V; Windows Server 2008 Standard; Windows Server 2008 Standard without Hyper-V; Windows Small Business Server 2003 ; Windows Vista; <b>Windows Vista 64-bit Editions Service Pack 1; Windows Vista Business; Windows Vista Business 64-bit edition; Windows Vista Business N; Windows Vista Enterprise; Windows Vista Enterprise 64-bit edition; Windows Vista Home Basic; Windows Vista Home Basic 64-bit edition; Windows Vista Home Basic N; Windows Vista Home Premium; Windows Vista Home Premium 64-bit edition; Windows Vista Service Pack 1; Windows Vista Starter; Windows Vista Starter N; Windows Vista Ultimate; Windows Vista Ultimate 64-bit edition</b>; Windows Web Server 2008; Windows XP; Windows XP 64-bit; Windows XP Home Edition ; Windows XP Home Edition N; Windows XP Media Center Edition; Windows XP Professional Edition ; Windows XP Professional N; Windows XP Professional x64 Edition ; Windows XP Service Pack 1; Windows XP Service Pack 2; Windows XP Service Pack 3; Windows XP Starter Edition; Windows XP Tablet PC Edition
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Recommended also Windows Vista ???