On the user PC (in domain) in settings they can see that RDP is turned off but the possibility to turn it on is disabled with the message: "Some settings are managed by your organization".
Some other PC in the same domain has RDP turned on while the same "Some settings are managed by your organization" is present.
So it is somehow set on the level of PC I guess (as establishing of the RDP session happens before the user logged in).
And I searched everywhere where I can activate it on the server (SBS 2003) but couldn't find a place where it is being managed. It should be somewhere. But where? Please, advise!