关键词:TCP/IP,C/S,Winsock,即时通信系统,Visual Basic
ABSTRACT
Instant Messaging is currently the most popular way to communicate on the Internet,by the way various Instant Messaging software have been continuously appearing; Service provider offers more and more communication services nowadays. As the development of the Internet, Instant Messaging will perform a wider use and is growing up day after day.
This thesis is based on the function of exchange, which is the basic character of instant messaging system, online users management, safeguarding online users and exchange message are come true.
This system has offered an instant messaging platform incorporating characters communication, online information and file transfer. Through several months develop and test cycle, this instant messaging system can already used to run now.