Microsoft terminal services licensing white paper

Windows Server Terminal Server licensing issues and requirements for deployment Content provided by Microsoft Applies to:

Microsoft terminal services licensing white paper

A multichannel capable protocol allows for separate virtual channels for carrying presentation data, serial device communication, licensing information, highly encrypted data keyboard, mouse activityand so on.

As RDP is an extension of the core T. Share protocol, several other capabilities are retained as part of the RDP, such as the architectural features necessary to support multipoint multiparty sessions.

Multipoint data delivery allows data from an application to be delivered in "real-time" to multiple parties without having to send the same data to each session individually for example, Virtual Whiteboards.

In this first release of Windows Terminal Server, however, we are concentrating on providing reliable and fast point-to-point single- session communications. Only one data channel will be used in the initial release of Terminal Server 4.

One reason that Microsoft decided to implement RDP for connectivity purposes within Windows NT Terminal Server is that it provides a very extensible base from which to build many more capabilities.

This is because RDP provides 64, separate channels for data transmission.

Resource links

However, current transmission activities are only using a single channel for keyboard, mouse, and presentation data.

The activity involved in sending and receiving data through the RDP stack is essentially the same as the seven-layer OSI model standards for common LAN networking today. Data from an application or service to be transmitted is passed down through the protocol stacks, sectioned, directed to a channel through MCSencrypted, wrapped, framed, packaged onto the network protocol, and finally addressed and sent over the wire to the client.

The returned data works the same way only in reverse, with the packet being stripped of its address, then unwrapped, decrypted, and so on until the data is presented to the application for use.

Key portions of the protocol stack modifications occur between the fourth and seventh layers, where the data is encrypted, wrapped and framed, directed to a channel and prioritized.

One of the key points for application developers is that, in using RDP, Microsoft has abstracted away the complexities of dealing with the protocol stack.


This allows them to simply write clean, well-designed, well-behaved bit applications, and then the RDP stack implemented by the Terminal Server and its client connections takes care of the rest. For more information on how applications interact on the Terminal Server and what to be aware of when developing applications for a Windows Terminal Server infrastructure, look at the "Optimizing Applications for Windows NT Server 4.

The MCS is made up of two standards: MCSMux controls channel assignment by multiplexing data onto predefined virtual channels within the protocolpriority levels, and segmentation of data being sent.

Microsoft terminal services licensing white paper

GCC is responsible for management of those multiple channels. Each Terminal Server protocol currently, only RDP and Citrix's ICA are supported will have a protocol stack instance loaded a listener stack awaiting a connection request.

RDP, being completely independent of its transport stack, means that we can add other transport drivers for other network protocols as customers needs for them grow, with little or no significant changes to the foundational parts of the protocol. These are key elements to the performance and extendibility of RDP on the network.Find answers to frequently asked questions about Azure Virtual Machine licensing in this FAQ.

Note. Azure has two different deployment models for creating and working with resources: Resource Manager and article covers using the Resource Manager deployment model, which Microsoft recommends for new deployments instead of the classic deployment model.

Rumba+ Desktop provides user-friendly terminal emulation for data rich green-screen applications, including IBM, UNIX, Linux, OpenVMS, and HP hosts. The remainder of this paper provides an overview of the Visual Studio product line and the licensing requirements for those products in common deployment scenarios.

If you’re a volume licensing customer, the definitive guide to licensing.


Dear Twitpic Community - thank you for all the wonderful photos you have taken over the years. We have now placed Twitpic in an archived state.

From Microsoft's founding in until , Gates had primary responsibility for the company's product strategy. He gained a reputation for being distant from others; as early as an industry executive complained in public that "Gates is notorious for not being reachable by .

Latest Topics | ZDNet