Differences between Product Versions: Standard versus Premium
MultiPoint Server is available in the following two versions:
Standard: Allows up to 10 simultaneously connected stations. Joining a domain is not supported, and it does not support virtualization as a host or guest operating system.
Premium: Allows up to 20 simultaneously connected stations.Joining a domain is supported. Virtualization is supported as a host or guest operating system with a 1+1 licensing model.