Winsock is a specialized network programming for Windows,Sockets fully compatible with the ActiveX control.It provides a visit TCP and UDP network services to facilitate access.Network programming is the most common client/server model,but the point-to-point communication has the advantages that it is a more simple programming model,and is for transmission of data flow fewer occasions,including control survey and so on.
The P2P network Socket based Communications are a methods that is flexible,and easy to be implemented. It uses various TCP/IP, as the communication protocol. And the Socket API help, Based on the development of Socket P2P network communication software is easy to achieve.
The design copy chat communication software MSN,QQ,achieveed parts of function, provides an online network for SMS,file transfer and other services.