Socket bluetooth com port

Hi,
I'd like to know if there is a way to change com port Socket bluetooth software assign to service installed.

This becasue i am trying this software named PDANet that add bluetooth DUN to wm6 phone that doesn't have anymore but I noticed that it use com 6 rather than com 2 as Socket software does.
So if I could change them it should work because now dun service has been discovered whenpairing on wm6 phone but won't connect.
Handheld is NEC 900c.
Thanks