DD sample implements serial port support for the Virtual DOS Machine (VDM). Driver for windows. Tool: winddk

串口驱动开发，用于DOS。开发工具：WinDDK-This VDD sample implements serial port support for the Virtual DOS Machine (VDM) under Microsoft® Windows NT® /Windows® 2000

PCL4C is a DOS serial communications library which can be used with Microsoft, Borland, Watcom, and MIX C/C++ compilers running under real or protected mode DOS.