点对点通话程序。用VC编写了一个dll，通话程序的界面用VB 实现。-procedures for point-to-point call. VC prepared a dll, the procedure call interface with VB.

基于TCP的VC网络聊天室源代码加实验报告，分为客户端与服务器两个部分，使用了windows socket网络编程接口-Source code for the chat room and lab reports, TCP-based VC network is divided into two parts of the client and server, using windows socket network programming interface