Volume Activation Management Tool (VAMT) technical reference
The Volume Activation Management Tool (VAMT) allows automation and central management of the retail-activation process for Windows, Office, and select other Microsoft products. VAMT can manage volume activation using Multiple Activation Keys (MAKs) or the Windows Key Management Service (KMS). VAMT is a standard Microsoft Management Console (MMC) snap-in. VAMT can be installed on any computer that has a supported Windows OS version.
Important
VAMT is designed to manage volume activation for all currently supported versions of Windows, Windows Server, and Office.
VAMT is only available in an EN-US (x86) package.