不用NetBios获取IP地址，而是采用IPHlpApi.h提供的API函数，更有效更简单！-not NetBios access to IP addresses, instead of using the IPHlpApi.h the API function, more effective and simple!

eXosip在多网卡机器运行，会出现IP问题。这是由于eXosip默认是取第一个网卡IP。这是修改部分，是由应用层设置IP，特换eXosip自己获取IP的修改。主要修改的两个文件。文件中已经表明，是关于多网卡问题-eXosip run in a multi-card machines, there will be IP issues. This is due to eXosip default is to take the first cards IP. This is a modified p