With VSPD Mobile you can:
Create up to 20 virtual serial ports in your mobile system
Virtual Serial Port Driver Mobile lets you easily create virtual ports that look and work exactly like real ones. You will be able to create up to 20 virtual ports and connect every two of them into pair, obtaining 10 virtual port pairs. Two ports in a pair are virtually connected to each other, and thus they can exchange data. Virtual Serial Port Driver Mobile fully supports ARM, MIPS, SH3/4, x86 and other processors.
Test hardware emulators and serial port software
Virtual Serial Port Driver Mobile gives you a wonderful opportunity to test software tools that work with serial ports and serial device emulators. Testing your software with VSPD Mobile is very easy. You simply create a virtual port pair, say COM3-COM4 open COM3 with terminal and COM4 with your software tool, or vice versa. Thus the two programs will be able to exchange serial data as if they were connected with the real null modem cable.
Disable existing serial ports and add new ones
Windows Mobile platform offers you a limited number of serial ports: COM0-COM9. However, this may not be enough for your purposes, as some of these ports can be already occupied by other devices. In this case you can disable existing serial ports and create new virtual ones instead.