PocketDOS是一款强大的虚拟PC运行环境，也就是 Windows Mobile 上面的虚拟机，可以在设备上安装真正的DOS操作系统，可以说就是把原来的DOS系统完整的移到手机上，可以执行绝大多数DOS命令，基本上以前经典的DOS游戏都能运行，尤其是对于原来使用320x240的低分辨率的游戏，更是美妙，如大富翁2，仙剑奇侠传，三国，美少女梦工场，大航海等等.

PocketDOS is a powerful virtual PC software environment for your pocket computer that allows you to run a DOS operating system and have instant access to many DOS applications* on your pocket computer, whilst simultaneously allowing the use of the pocket computer's native applications. PocketDOS also allows DOS applications to access serial ports, built-in modems, infrared ports, bluetooth devices, removable storage disks, touchscreens and shared network resources, and allows file sharing between the pocket computer's native applications and DOS applications.