Windows Server 2008 License Key Direct
Key Management Services (KMS) client activation and product keys
(KMS client key) – this does not activate the product but allows installation for evaluation or repair. Example (for Windows Server 2008 Standard): YC7KT-G2W66‑Y2WPM‑GMV7H‑XG7XF (This is a publicly documented Microsoft KMS client key. It will install the OS but will not activate – you still need a genuine MAK or KMS host.) windows server 2008 license key
Designed for businesses with multiple servers, these use MAK (Multiple Activation Key) or KMS (Key Management Service) for centralized activation. How to Find Your Existing License Key Key Management Services (KMS) client activation and product
One of the highlights of the 2008 licensing system is its versatility. Microsoft provided several distinct "channels" for activation: How to Find Your Existing License Key One
These are pre-installed by hardware vendors like Dell, HP, or IBM. They are "bios-locked" to the specific server chassis and are not transferable to other hardware.