May 30, · In Windows Server R2, you must specify a license server for the RD Session Host server to use. Automatic license server discovery is no longer supported for an RD Session Host server that is running Windows Server R2. Use the following procedure to specify a license server for the RD Session Host server to use. Nov 29, · 1 Answer. Windows licensing is confusing.. The different generations of Windows Server, like , , , are called 'Versions' by Microsoft. The different flavors of one version, like R2 Standard, Datacenter, Essentials, or Foundation, are called 'Editions' by Microsoft.
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