Yes, the KMS client activation is supported in multi-domain environment in which the KMS host belongs to one domain and needs to cater to the clients in others. For this to work, you need to create a ‘multi-string value’ registry key under “HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionSoftwareProtectionPlatform” called “DNSDomainPublishList” on your KMS Server. When done, restart the “Software ...