KMS Host Keys to Products Activated

Table 7 describes the products that each KMS host can activate.

Table 7. KMS Host Keys Matched to Products They Activate

Volume product group

Windows products

Key type

Products activated by key type

Windows Vista

Windows Vista Business

Windows Vista Enterprise

KMS

Windows Vista Business

Windows Vista Enterprise

Windows 7

Windows 7 Professional

Windows 7 Enterprise

KMS

Windows Vista Business

Windows Vista Enterprise

Windows 7 Professional

Windows 7 Enterprise

Windows Server 2008 R2

Server Group A:

Windows Web Server® 2008 R2

Windows Server 2008 R2 HPC Edition

Windows HPC Server 2008 R2

KMS_A

Windows Server 2008 R2 Group A

Windows Server 2008 Group A

Windows Vista Volume Editions

Windows 7 Volume Editions

Windows Server 2008 R2

Server Group B

Windows Server 2008 R2 Standard

Windows Server 2008 R2 Enterprise

KMS_B

Windows Server 2008 R2 Group A

Windows Server 2008 Group A

Windows Server 2008 R2 Group B

Windows Server 2008 Group B

Windows Vista Volume Editions

Windows 7 Volume Editions

Windows Server 2008 R2

Server Group C

Windows Server 2008 R2 Datacenter

Windows Server 2008 R2 for Itanium-Based Systems

KMS_C

Windows Server 2008 R2 Group A

Windows Server 2008 Group A

Windows Server 2008 R2 Group B

Windows Server 2008 Group B

Windows Server 2008 R2 Group C

Windows Server 2008 Group C

Windows Vista Volume Editions

Windows 7 Volume Editions

Windows Server 2008 R2 KMS keys follow the same hierarchy (groups A, B, C) as Windows Server 2008 with the addition of the Windows Server 2008 Datacenter without Hyper-V™, Windows Server 2008 Enterprise without Hyper-V, and Windows Server 2008 Standard without Hyper-V. The primary difference to note is that Windows Server 2008 R2 KMS keys can be used to activate a KMS host that will in turn activate Windows Server 2008, Windows 7, and Windows Vista.

Windows Server 2008 and Windows Vista keys cannot activate Windows 7 or Windows Server 2008 R2 systems.