VB判断网络连接，可判断客户端连网的方式，以及一些其它的网络信息，比如是否安装了网络RAS、是否是通过Modem连接、是否是通过Proxy连接、是否是通过通过LAN连接、主机是否有合法的Internet连接配置-VB to determine the network connection, you can determine the client networking, as well as some of the other network information, such as wheth