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This is the standard server access license measured in License Manager, the same utility that is in Windows NT Server. License Manager does not distinguish between RDP client access and other types of server access for example, it does not distinguish between a normal shared file and printer resource access. Terminal Server License Manager reports but does not enforce licensing. If an RDP client is denied access to the server when it tries to make a connection, increasing the license count in Terminal Server License Manager will not resolve the problem.

Client Access Licenses must be added to License Manager. These licenses are good for 60 days. The RDP client making use of a temporary license will continue to do so for the full 60 days even if new licenses are added. After 60 days, the client's temporary license will expire, and the client will get a new license either a temporary license if no normal licenses are available, or one of the new licenses that have been added.

Logging on at the Terminal Server console uses one Client Access License, but this is not reflected in the license count in License Manager. In the event that only one Client Access License is available, RDP clients at the console or elsewhere will not be able to connect even though the License Manager in-use license count is zero.

This is different from normal licensing behavior because administrators can always log on at the console or connect to the server remotely even if no licenses are available. Administrators must log on at the Terminal Server console, or access the server by means other than the RDP client, if the Terminal Server runs out of licenses.

Each process created within a session is "tagged" with the associated SessionID to differentiate its namespace from any other connection's namespace.

The console Terminal Server keyboard, mouse, and video session is always the first to load, and is treated as a special-case client connection and assigned SessionID. The console session starts as a normal Windows NT system session with the configured Windows NT display, mouse, and keyboard drivers loaded. The modified Windows NT image loader will recognize this Win32k. It will then relocate the code portion of the image into physical memory, with pointers from the virtual kernel address space for that session, if Win32k.

By design, it will always attach to a previously loaded image's code Win32k. For example, from any active application or session. The data or non-shared section of this image will then be allocated to the new session from a newly created SessionSpace pageable kernel memory section.

Unlike the console session, Terminal Server Client sessions are configured to load separate drivers for the display, keyboard, and mouse. The mouse and keyboard drivers communicate into the stack through the multiple instance stack manager, termdd. These drivers allow the RDP client session to be remotely available and interactive. Finally, Terminal Server will also invoke a connection listener thread for the RDP protocol, again managed by the multiple instance stack manager Termdd.

This prevents processes with different SessionIDs from accessing another session's data. Non-Windows-based clients are supported by the Citrix Metaframe add-on. The listener thread will hand over the incoming session to the new RDP stack instance and continue listening on TCP port for further connection attempts. Each RDP stack is created as the client sessions are connected to handle negotiation of session configuration details. The first details will be to establish an encryption level for the session.

The Terminal Server will initially support three encryption levels: low, medium, and high. For example, from any active application or session. The data or non-shared section of this image will then be allocated to the new session from a newly created SessionSpace pageable kernel memory section. Unlike the console session, Terminal Server Client sessions are configured to load separate drivers for the display, keyboard, and mouse. The mouse and keyboard drivers communicate into the stack through the multiple instance stack manager, termdd.

These drivers allow the RDP client session to be remotely available and interactive. Finally, Terminal Server will also invoke a connection listener thread for the RDP protocol, again managed by the multiple instance stack manager Termdd.

This prevents processes with different SessionIDs from accessing another session's data. Non-Windows-based clients are supported by the Citrix Metaframe add-on.

The listener thread will hand over the incoming session to the new RDP stack instance and continue listening on TCP port for further connection attempts. Each RDP stack is created as the client sessions are connected to handle negotiation of session configuration details.

The first details will be to establish an encryption level for the session. The Terminal Server will initially support three encryption levels: low, medium, and high. Low encryption will encrypt only packets being sent from the client to the Terminal Server. This 'input only' encryption is to protect the input of sensitive data, such as a user's password. Medium encryption will encrypt outgoing packets from the client the same as low-level encryption, but will also encrypt all display packets being returned to the client from the Terminal Server.

This method of encryption secures sensitive data, as it travels over the network to be displayed on a remote screen. Both low and medium encryption use the Microsoft-RC4 algorithm modified RC4 algorithm with improved performance with a bit key. What is Terminal Services? This is the description: Allows multiple users to be connected interactively to a machine as well as the display of desktops and applications to remote computers. Does Terminal Services have to do with the Router? Can you please let me know more about this service and what will happen if I stop the service.

Thanks in advance for your help. Remote Desktop Services in Windows Server R2, formerly known as Terminal Services in Windows Server and previous versions, is one of the components of Microsoft Windows both server and client versions that allows a user to access applications and data on a remote computer over a network, using the Remote Desktop Protocol RDP.

Terminal Services is Microsoft's implementation of thin-client terminal server computing, where Windows applications, or even the entire desktop of the computer running Terminal Services, are made accessible to a remote client machine. The client can either be a full-fledged computer, running any operating system as long as the terminal services protocol is supported, or a barebone machine powerful enough to support the protocol with terminal services, only the user interface of an application is presented at the client.