Here is a tutorial on how to configure a Bluetooth GPS device on your Windows Mobile 5.0 based device as well as add multiple Virtual COM ports for use by different programs/applications.

Windows Mobile 5.0 has a feature called the GPS Intermediate Driver that allows multiple applications to share a single Bluetooth GPS device. Earlier, if any one application was using a GPS COM port, no other software could use it. But the new WM 5.0 Intermediate Driver creates a virtual COM port that interacts with the real GPS port, and handles multiple client applications simultaneously. If you go to Start/Settings/Connections/Bluetooth, you can add a Hardware Port (for the actual GPS device) and multiple Program Ports (for different applications that need to interact with the GPS device).

1) Goto Start–>Settings–>Connections–>Bluetooth and make sure Bluetooth is turned on
2) Goto the Device Tab and choose to “Add a new device”
3) Select your Bluetooth GPS device, goto Next, select “Serial Port” and hit Finish
4) Goto the “COM Ports” tab and select “New outgoing port”. Select your GPS device, goto Next. A COM port will be assigned to your GPS device. For example, COM0. Hit Finish.
5) If you are planning to use a single application with your GPS device, just open the software and select the above assigned Hardware COM Port
6) If you are planning to use multiple applications with the GPS device, then you need to add multiple Virtual COM ports by doing the following:

a) Goto Start–>Settings–>System–>GPS
b) Set the “GPS Program Port” to any unused COM port, for example, COM6.
c) Then go to the Hardware tab and set the Hardware Port to COM0. The baud rate of the Bluetooth GPS device can usually be 4800 or 9600
d) Start your GPS software and configure it to use COM6