To allow ample time for you to deploy a license server, Terminal Services provides a licensing grace period during which no license server is required. You must configure TS Licensing correctly in order for your terminal server to accept connections from clients. For larger deployments, it is recommended that the TS Licensing role service be installed on a separate computer from the Terminal Server role service. For small deployments, you can install both the Terminal Server role service and the TS Licensing role service on the same computer. To use Terminal Services, you must also have at least one license server deployed in your environment. You do not need a license server for these connections. Remote Desktop supports two concurrent connections to remotely administer a computer. If an appropriate TS CAL is available from a license server, the TS CAL is issued to the client, and the client will be able to connect to the terminal server. Although there is a licensing grace period during which no license server is required, after the grace period ends, clients must have a valid TS CAL issued by a license server before they can log on to a terminal server. The terminal server then requests a TS CAL from the Terminal Services license server on behalf of the client attempting to connect to the terminal server. When a client-either a user or a device-connects to a terminal server, the terminal server determines if a TS CAL is needed.

You use TS Licensing to install, issue, and track the availability of TS CALs on a Terminal Services license server.įor more information about TS CALs, see Terminal Services Client Access Licenses (TS CALs).

Terminal Services Licensing (TS Licensing) manages the Terminal Services client access licenses (TS CALs) that are required for each device or user to connect to a terminal server. TS Licensing supports terminal servers that run Windows Server 2008 as well as terminal servers running Windows Server® 2003 or Windows® 2000 Server.įor more information about TS Licensing, see the Terminal Services page on the Windows Server 2008 TechCenter ( ) or the TS Licensing Manager Help in the Windows Server 2008 Technical Library ( ). This system allows terminal servers to obtain and manage Terminal Services client access licenses (TS CALs) for devices and users that are connecting to a terminal server. The Windows Server® 2008 operating system provides a license management system for Terminal Services known as Terminal Services Licensing (TS Licensing).

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