vc6.0，ddk，DriverStudio环境下的wdm驱动程序，这是一个usb转串口的简洁的驱动程序，没有电源管理-vc6.0 ddk, the DriverStudio environment under the wdm drivers, this is a usb to serial simple driver, without power management

DDK环境下，windows usb的驱动程序，可以根据自己的串口的实际特点，来改此工程-DDK environment, windows usb driver, serial port based on the actual characteristics of their own, to change this project

虚拟串口设备驱动，开发环境vc++6.0+DDK-Virtual serial port device driver, development environment vc++6.0+ DDK