Add a 'Disconnect' button (and Timer) to the Connection List
 

Add a 'Disconnect' button (and Timer) to the Connection List for GPRS:

To add a Disconnect button:
HKLM\ControlPanel\Phone\Flags2 = 8 (DWORD decimal)
To add a Disconnect button and a timer display showing how long GRPS is in use for the session:
HKLM\ControlPanel\Phone\Flags2 = 16 (DWORD decimal)
To disable both the Disconnect button and the timer:
HKLM\ControlPanel\Phone\Flags2 = 0 (DWORD decimal)