Apr 26, 2013

KMS, host keys, client keys, etc.

  1. One KMS can host multiple host keys - for example, it can host both Windows 2012 & Office host keys at the same time
  2. Host keys are confidential info for companies who bought the license; while client keys are publicly available from Microsoft's website. Client key for a product is same for all companies who chose to use KMS activation.
  3. Higher host keys is inclusive in that it covers older, lower products in the same product family. For example, once you install Windows Server 2012 Enterprise Edition, you won't need separate keys to cover standard edition or Windows 2008 servers. The same key covers all.