Microsoft Terminal Services License Basics May 2004
Corporate & Academic All Open License All Select License All Enterprise Agreements Campus & School Agreement
The functionality of Microsoft® Windows® Terminal Services (TS) provides many opportunities to use Microsoft Windows-based applications in ways that are different than typical software installed on the local hard disk drive (HDD) of the desktop computer. This functionality and its impact on how software is used has raised questions about the licensing impact of both TS and other software used in conjunction with TS.
There are three Licenses required when connecting to Microsoft Windows TS.
The server License – This may be Microsoft Windows NT Server 4.0 TS Edition or Microsoft Windows 2000 Server with TS enabled in application server mode.
A Microsoft Windows NT 4.0 Client Access License (CAL) or Microsoft Windows 2000 CAL – The CAL is to be the same version or later as the server being used. Using the server CAL to support TS is to be in the per seat mode. For further details on per seat, per server and per processor licensing see the licensing brief on that topic.
Either a) a TS CAL (version to match or be later than server being used) OR b) Microsoft Windows NT Workstation 4.0 or Microsoft Windows 2000/XP Professional installed on the desktop (version to match or be later than server being used example – Microsoft Windows 2000/XP Professional can connect to Microsoft Windows NT 4.0 TS, but Microsoft Windows NT Workstation 4.0 would need a TS CAL or migrate to Microsoft Windows 2000/XP Professional to access Microsoft Windows 2000 Server.).
Note: Terminal Services is licensed on a per-device basis and is not available on a per-server or per-processor use with the exception of the Terminal Services Internet Connector License explained below. Each device, whether it connects directly to the terminal server, or indirectly via another server, requires the appropriate licenses to be assigned to it.
Q. I have 100 desktops that will be using TS, but only 25 at any one time. How many licenses do I need?
A. TS are licensed per device; there is no concurrent use of these services available. If there are 100 desktops on the network you will need 100 of #2 above and 100 of #3 as well.
Q. I have an Enterprise Agreement, but I am only running Microsoft Windows 98 on my desktops. Do I also need to acquire TS CALs for my desktops?
A. An Enterprise Agreement gives you the rights to run the most current 32-bit Microsoft operating system on your desktop. Even if you choose not to install it right away, you still have those rights. That would cover #2 from the list above Therefore; no additional TS CALs are needed.
Q. I have Microsoft Office on my TS and want to give access to the TS clients. I have 100 TS desktops, but at any given time only 25 will be using Microsoft Office. How many Microsoft Office licenses do I need?
A. 100. How your network is set up and how you choose to provide access to Microsoft application software has no impact on the licensing of the application itself. Microsoft Office (as well as other Microsoft desktop applications) do not allow concurrent use. If there are 100 desktops on the network requiring Microsoft Office, then you will need 100 licenses for Microsoft Office. This is the same if you install all 100 on the local HDD of the desktops, if this is a typical Microsoft Windows 2000 network and the desktops are accessing the program through the server or if this is a TS installation using Microsoft Windows Terminals with no HDD in them.
Q. I am using Citrix to provide access to my Microsoft Windows 2000 TS. Do I still need Microsoft Windows 2000 CALs and TS CALs for those devices using a third party product?
A. Yes, as stated in the Product Use Rights for Terminal Services the use of third party products such as Citrix or Menta do not change the Microsoft licensing requirements. These are still desktops accessing Terminal Services and will need #2 & #3 as listed above. This also does not change any of the needs for application licenses as mentioned in the previous question.
Q. I want to use TS to provide access to my customers on my website, what License do I need?
A. If these customers meet the definition of an Internet user (see below) then you would need to acqurie the TS Internet Connector for them to use the functionality of TS over the Internet.
Terminal Services Internet Connector - The Terminal Services Internet Connector License allows a TS to serve up to 200 concurrent connections. Terminal Services Internet Connector licensing may only be used for non-employees and replaces the need for a TS CAL and Microsoft Windows 2000 Server CAL to be assigned to a specific device. The Terminal Services Internet Connector license is currently available under the Microsoft Open License, Select License programs, and as an additional product in an Enterprise Agreement. A Microsoft Windows 2000 Internet Connector License is not required for a Microsoft Windows 2000 server using the Microsoft Windows 2000 Terminal Services Internet Connector license.
“Internet User.” Except as otherwise provided in the Product Use Rights, means any person connected to the Internet, other than a person (i) employed by you (as an employee, independent contractor, agent, or in any other capacity); or (ii) otherwise providing goods or services to you (for example, one of your suppliers) or on your behalf (for example, one of your distributors or resellers, agents, or a consulting firm hired by you). For additional information see http://www.microsoft.com/windows2000/
library/howitworks/terminal/tslicensing.asp and http://www.microsoft.com/windows2000/guide/server/pricing/tsfaq.asp Note: This Microsoft Volume Licensing Brief is provided for general informational purposes. For the terms and conditions governing your use of Volume Licensing Software Products, please refer to your Volume License Agreement and the Product Use Rights.