Key Management Service (x64) for Windows Server 2003 SP1 and Later

Microsoft Key Management Service for Windows Server 2003 is part of Microsoft Windows Volume Activation 2.0. It allows enterprise users to host Key Management Service on Windows Server 2003 to enable activation of Windows Vista using Key Management Service (KMS) Key.

http://www.microsoft.com/downloads/details.aspx?familyid=03fe69b2-6244-471c-80d2-b4171fb1d7a5&displaylang=en&tm

Posted in: Key Management Service,Key Management Service for Windows Server 2003 SP1 and Later,KMS