How to change the COM port name?

[aymen]

Hi all,

I have 2 applications trying to gain access to the same GPRS modem port COM3 (the 1st application comes with the product and can't be configured to use another port and 2nd application is mine and is fully configurable)
so the most evident solution is to use a port sharing application, creating 2 virtual ports and the sharing application will synchronize the access to the physical port and so they access the same port in the same time.

so far everything is OK, but the problem is that the application that comes with the product will connect only to the port (COM3), and can't be redirected to the virtual one!! (and by the way Modem ports can be changed from Device Manager >> port...)

I got the idea to rename that port (COM3) to COM6 for example, and then the COM3 will be assigned to a virtual port to which the product application will connect, we can use COM4 as a virtual port to which my application will connect and the sharing application will coordinate the access the physical port (COM6), I searched everywhere how this can be done but didn't find anything useful!! I know that it can be done since COM1 COM2 ... are just symbolic links to the port's physical address but how to implement it, that's the question!!

Any help will be greatly appreciated.