C # How do I communicate with the C/S structure?

Really benevolent, wise: too many methods, such as WCF, remoting, socket, and COM +.

Remoting is suitable for LAN development.

Socket (self-developed, requires a higher level), WebServices (Standard Protocol) is suitable for Wan development.

COM + is suitable for developing large-scale concurrent applicationsProgramAnd is sometimes used in MSMQ message queues.

I have not studied WCF.

This is just a summary of my research over this period of time. There may be some misunderstanding. Please discuss it more!