Container-based KMS service based on vlmcsd since 2015.

# Uninstall previous product
slmgr.vbs /upk

# Register new product
slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

# Setup KMS server
slmgr /skms kms.sparanoid.net

# Activate
slmgr /ato

# View expire date
slmgr.vbs /xpr

# View details
slmgr.vbs /dlv