如何在Windows中创建虚拟Com1端口？

I am developing a mobile app to run on a pocketpc. We have a mobile printer and card swipe that uses com1 to send and get info. I'm using the device emulator and want to test without the printer. How do I create a virtual com1 port to right to and read from? I tried com0com but the device emulator will not set that as serial 0. I am developing a mobile app to run on a pocket