i am new to mobile development. working with a 3660 over bluetooth (Widcomm stack). i downloaded the latest pc suite and pc connectivity sdk. after connecting over Bluetooth Serial Port and virtual port COM 3, the pc suite connects properly and i can sync my 3660 with pc and restore it back... transfer files and install software.

but when i try to connect through a VB application using PC Connectivity SDK, it always says the phone is not connected. the code i am using is below...