自动安装虚拟MODEM设备,实现设备端口检测查找,该程序兼容WINDOWS 2000以上系统,功能稳定,学习驱动安装很好的例程-Automatic installation of Virtual MODEM device for device port detection to find, the program is compatible with WINDOWS 2000 or more systems, functional stability, and to learn a very g