ZXPortMap

modbus 测试，用VB的winsock控件实现的modbus tcpip通讯等(modbus test, with VB the winsock control to achieve the modbus tcpip communications)

这是VB6.0上MSDN的例子，不过我做了稍微改动，能实现输入任意的IP地址，实现与其通信的目的(This is a VB6.0 example on MSDN, but I make a slight alteration can realize arbitrary input IP address, the realization of the purpose of communication)

说明：  live555 rtsp build in vs2008 and vs2015. also make testRTSPClient execute project

基于socket 的网络编程 客户端 具有上传下载文件功能(Socket-based network programming for clients with upload and download files function)

MFC类下的winsock多线程实现文件传输，在vc++6.0下通过调试。(MFC category under the winsock multithreading document transmission, the 6.0 vc through debugging.)

回声消除代码实例，具有一定的参考价值，可以下载使用。(voice aec code example ,will be valuable to you work if you download it)

简化Sock连接。采用队列保存Sock的收发消息包，保证消息的处理顺序。(Simplify the Sock connection)

完成端口服务器，支持同步发送接收，支持内存池，支持简单丢包算法。(Completion port server to support simultaneous sending and receiving, support memory pool to support a simple algorithm for packet loss.)

提供了各种拒绝服务攻击方式的算法，封装成了各种函数，调用很方便。(Offers a variety of denial of service attack algorithm, the package into various functions, call it convenient.)

说明：  基于VC的OPC客户端软件研究与实现.......(The OPC-based VC research and implementation of client software ....... )