Digital channels are device extensions that can be used to add a Remote Desktop Services program with usable improvements. Examples of practical changes can include support for various types of hardware, audio, or other key feature additions supported by the Remote Desktop Protocol Remote Desktop Services (RDP). The RDP protocol offers multiplexed multi-multi management, Multiplexed monitoring of multiple virtual channels is provided by the RDP protocol.
What are Virtual Channels?
Bi-directional link streams provided by the RDP protocol are virtual channels. Digital channels allow third parties to create a data pipe to expand the Remote Desktop Protocol functionality between the TS client and the server (RDP). The cross-TS-connection clipboard, push, printer, and smart card redirection are examples of additional functionality offered by virtual networks.
Two types of virtual channels are available: static and dynamic. Dynamic virtual channels are the chosen way to expand TS capabilities due to the shortcomings of static virtual channels referenced above.
Dynamic virtual channels
A significant purpose of the Terminal Services (TS) team is to provide a commodity that third parties can quickly broaden to better suit their needs. Though virtual channels have always been sponsored by TS, they have had their drawbacks, including the small number of channels and the difficulties of writing virtual channel software. It is possible to use Dynamic Virtual Channels (DVCs).
Graphics Virtual Channel
The virtual channel reference for graphics includes programming elements that allow you to create a virtual channel for graphics. There are two parts of a virtual channel program, a client module and a module for the server. The service module is an executable program that operates on the server of the Remote Desktop Session Host.
The client module is a DLL that must be loaded into the client computer’s memory while a client Remote Desktop Communication (RDC) program is running. Digital channels can incorporate technical improvements, independent of the RDP protocol, to a Remote Desktop Communication (RDC) client. With virtual channel support, new functionality may be introduced without the client or server applications or RDP protocol needing to be modified.
- Common drivers for kernel-mode, such as serial or printer drivers.
- Redirecting file system (this is just a special case of a general kernel-mode driver).
- User-mode programs, such as remote cut-and-paste.
- Apps with audio.
If you have allowed a virtual channel program in your Remote Desktop Services implementation, you can use the Remote Desktop control to make the application accessible to client computers that access the RD Session Host server.