Terminal Server Licensing W2K and W2K3




We are currently considering upgrading some of our system to W2K3.

As part of this we would like to start putting some of our new server on
W2K3 from now on. We would like to set-up a separate Terminal Server
Licensing server from our core Windows 2000 one to deal with W2K3 licenses
(we do not want to upgrade the w2K Terminal Server Licensing server at the

Has anyone ever run in this mixed environment of W2K Terminal Server
Licensing and W2K3 Terminal Server Licensing?

I know there is a Registry key to hard code servers to a TS Licensing server
but if we set-up a W2K3 will the W2K machine automatically go to the W2K one
as no W2K licenses will be available on the W2K3 license server?


Vera Noest [MVP]

A 2003 TS Licensing Server *can* handle both W2K and 2003 TS CALs.
So you can point all of your Terminal Servers (both W2K and 2003)
to your 2003 LS and install all of your TS CALs on it.

There's an excellent white paper about mixed environments, with
lots of examples of 2003 and W2K TS and Licensing Servers:

Windows Server 2003 Terminal Server Licensing White paper



Thanks for the information. I was aware that you can do that BUT due to
"Politics" we do not want to upgrade the current TS Licence Server and so
wanted to find out if we can run two (one 2003 and one 2000).



Vera Noest [MVP]

OK, I see.

Yes, you can have both a W2K and a 2003 TS Licensing Server.
You have to hardcode the name of the correct LS into the registry
of each TS, to avoid that a W2K TS detects and uses a 2003 LS
(which would issue temporary W2K licenses to down-level clients).

Vera Noest
MCSE,CCEA, Microsoft MVP - Terminal Server
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