与Windows Vista一样,Windows Server 2008也拥有多种激活体系,包括Volume Activation 2.0和KMS.
批量激活大家几乎都已经了解,这里着重介绍KMS,KMS Key由KMS服务器分发,该服务器可以同时为Windows Server 2008,Windows Server Core 2008,Windows Vista颁发许可,管理员可以选择自动发现或定义KMS服务器(1688端口)来完成授权工作.Windows Server 2008 KMS服务器端支持无限数量的客户端,但客户端必须在每180日内完成一次激活.

Windows Server 2003的KMS (Key Management) 需要一次更新以支持Windows Server 2008系统及其虚拟化产品,该更新将跟随2008版本一起发布.

KMS服务器和主机以及KMS客户端都支持虚拟机内运行.

Volume Product Group	KMS Key	KMS can be hosted on	Windows product editions activated by this KMS
Vista VL	KMS	Windows Vista KMS for Windows Server 2003	Windows Vista Business Windows Vista Enterprise
Server Group A	KMS_A	Windows Web Server 2008 KMS for Windows Server 2003	Windows Web Server 2008 Vista VL
Server Group B	KMS_B	Windows Web Server 2008 Windows Server 2008 Standard Windows Server 2008 Enterprise KMS for Windows Server 2003	Windows Server 2008 Standard Windows Server 2008 Enterprise Server Group A Vista VL
Server Group C	KMS_C	Windows Web Server 2008 Windows Server 2008 Standard Windows Server 2008 Enterprise Windows Server 2008 Datacenter Windows Server 2008 for Itanium KMS for Windows Server 2003	Windows Server 2008 Datacenter Windows Server 2008 for Itanium Server Group B Server Group A Vista VL

（责任编辑：hahack）