VB利用网络连接控制ie启动，程序将判断是否连接到Internet，如果已经链接Internet，则使用ShellExecute调用IE，未连接Internet，则弹出提示框“请检查网络连接是否正常”。-VB network connection control ie start, the program will determine whether to connect to the Internet, if you have links to the Internet, you use the the ShellExecute call the IE is not connected to the Internet, the pop-up box "check the network connection is normal.