how to make net meeting software in c#

hello sir,
i have made it as Remote Desktop access for Intranet System... but i want to make net meeting Software.. like team Viwer so please let me know ..... what is the Next steps to do for this job...

thanks In Advance

The first steps is to learn about Windows. Learn about how messages are sent to a message loop and processed. Also learn about graphics and how graphics is painted. You must understand about windows, including controls. You must understand about how windows are created and modified at the low-level graphics level. Until you understand how an application normally works at the API and messages level, you cannot write a program that captures that activity and re-creates it in a different system. You must understand about processes and address spaces. You must understand that exe files execute in address spaces. You must understand about DLLs. You must understand Windows, and then you will have a good understanding of what needs to be done.
 
You cannot do all of it using C#. The injected code must be written using C++ or some other language that does not use .Net.
 
Go to Visual Studio and generate a C++ Windows API project. Study that an learn how that works. Then try to understand what needs to be done to capture what the application does. Then learn about threads and about processes. Learn about CreateThread and CreateProcess. Learn about DLLs and the DllMain. Learn about the restrictions on what can be done in a DllMain. Learn about CreateRemoteThread. You cannot avoid learning about all those things. Until you understand all that, it won't help to try to explain what to do.

thanks for reply sir,

but i want to know what is the first steps to do this thing.. because i want to do even i have to do.. so please tell me what is the first steps for it..... and what is the process to do this thing...and even i have 2 years Exp. in dot net 2005.......

thanks in Advance

To write software such as that, you must be extremely experienced with advanced Windows. It is not easy to do. Anyone that can do it can earn many thousands of dollars. That is, software that can execute in a computer that allows people in another computer to see and interact with the first computer's applications as if they were in the other computer. You need to know about the Windows API initimately, including the way that messages are used. You must especially understand how graphics work in Windows. You must know about code injection. If the terms GDI and regular DLLs are unfamiliar to you then you need to invest many months to learn about Windows.
 
See Ultra VNC; it might help.