Windows Registry Editor Version 5.00
;To avoid COM port proliferation and change Windows default behavior add the following registry key
;
;[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\UsbFlags\1BC7<PID><REV>]
;"IgnoreHWSerNum"=hex:01
;
; where
;	<PID> is the PID of the modem for which COM port proliferation should be avoided
;	<REV> is the bcdDevice value of the modem in use, it can be found in
;		Device Manager -> Telit USB Composite Device Properties of the modem in use -> tab Details -> Property Hardware Ids
;
; see the following example
;
;[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\UsbFlags\1BC710400414]
;"IgnoreHWSerNum"=hex:01
;
; where
;	<PID> = 1040
;	<REV> = 0414
;
; note that there could be different <REV> versions for the same modem, since it depends on the firmware version