Download Microsoft® Windows® Cryptographic Next Generation Software Development Kit for Windows Vista, Windows Server 2008, and Windows 7 from Official Microsoft Download Center

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Microsoft® Windows® Cryptographic Next Generation Software Development Kit for Windows Vista, Windows Server 2008, and Windows 7

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The CNG SDK contains documentation, code, and tools designed to help you develop cryptographic applications and libraries targeting the Windows Vista SP1, Windows Server 2008 R2, and Windows 7 Operating Systems.