Screen cast/screen share/remote desktop controk SDK for .NET

I am working on a project needs a screen cast/screen share/remo开发者_如何学运维te desktop control feature. The software should be able to broadcast the screen of one PC to at least 16 other PCs in real-time and the administrator can monitor and control activities at any PC in real-time also. Is there any SDK (free or commercial) available?

Thanks for the suggestions.

Not a complete answer but here is an article about remote desktop in .Net: Palantir - Remote Desktop Manager

What about VncSharp or .NET VNC Viewer ?

I have information that not very expensive commercial VNC SDK solution are provided by abtoVNC here. They sell SDK and sources of VNC protocol based custom remote desktop solutions for Windows, Android and iOS