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Licensing Terminal Services in Windows Server 2008

Terminal Services functionality in Windows Server 2008 lets you remotely execute applications on a Windows-based server from a wide range of devices over virtually any type of network connection. A server running Terminal Services can be referred to as a Terminal Server (TS).

Terminal Services Licensing Requirements

Windows Server License

The Windows Server 2008 licensing model requires a server license for each running instance of the server software. Terminal Services functionality is included in the Windows Server license.

Windows Server Client Access License

In addition to a server license, a Windows Server Client Access License (CAL) is required. If you wish to utilize the Terminal Services functionality of the Windows Server software, an incremental Terminal Services Client Access License (TS CAL) is required as well. A TS CAL is required for each user or device.

Available Terminal Services CALs

The following types of Terminal Server Client Access Licenses are available:

  • A TS Device CAL permits one device (used by any user) to utilize Terminal Services functionality on any of your servers.

  • A TS User CAL permits one user (using any device) to utilize Terminal Services functionality on any of your servers.

  • TS External Connector for TS permits multiple external users to access a single terminal server; if you have multiple servers you will need multiple external connectors in addition to any required Windows Server External Connectors or App-V for TS External Connectors. See here for more information.

  • Service Providers License Agreement (SPLA) if you are a service provider hosting Terminal Services. See here for more information.

You may choose to use a combination of TS Device CALs and TS User CALs simultaneously with the server software.

Terminal Services Client Access Licensing Mode

Terminal Services CALs are available in Per User/Per Device mode only.

In Per User or Per Device mode, a separate TS CAL is required for each user or device that accesses or uses the server software on any server. You may reassign a TS CAL from one device to another device, or from one user to another user, provided the reassignment is made either (a) permanently away from the one device or user or (b) temporarily to accommodate the use of the TS CAL either by a loaner device, while a permanent device is out of service, or by a temporary worker, while a regular employee is absent.

TS CALs are not available in Per Server mode as Windows sessions are not allowed in Per Server mode.

Terminal Server Frequently Asked Questions

View all answers

Q.  What is the difference between Terminal Services and Terminal Server?

Q.  How do I license a Terminal Server?

Q.  Will TS CALs need to be added to the Terminal Server License Manager (TSLM) for distribution to desktop systems?

Q.  I have different versions of the operating system running on my terminal server(s) and my Terminal Server License Server Management. Which operating system governs my license rights?

Q.  I have valid upgrade rights (Enterprise Agreement, or Software Assurance) for my TS CALs. How do I exercise my upgrade rights?

Q.  Why do Windows XP Professional desktops need a TS CAL?

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