Skype是个非常优秀的IP电话通信工具，不但可以PC to PC，而且也可以PC to PSTN，当今非常盛行。Skype为了加快自己的发展全面开放了API，其实所谓的API不是真正的Win32 API函数，而是一系列消息的组合.本程序简单地实现了Skype通话和拨号以及发送文字聊天消息的简单功能。-Skype is a very good tool for IP telephony, not only PC to PC, but also PC to PSTN, is very popular nowadays. Skype in order to accelerate their development fully open API, in fact, the so-called API Win32 API function is not real, but a combination of a series of messages. This program implements a simple dial-Skype calls and send text chat function and a simple message.