C# TCP Client/Server app code help.

My current tcp client server app in C# ,currently only can do 1 operation at a time ( example screen capture only). I need my tcp client-server to be [login to view URL] I want to be able to "open drive" while doing screen capture. I would like this to connect using 1 port only and this is reverse connection. I would like details comments in the code so I can understand, ## Deliverables My current tcp client server app in C# ,currently only can do 1 operation at a time ( example screen capture only). I need my tcp client-server to be [login to view URL] I want to be able to "open drive" while doing screen capture. I would like details comments in the code so I can understand,