When you first install the drivers for the D-Linkyou may be asked for a in order to continue the installation.
After you´ve installed the drivers and configured youryou will be asked to create a in order to pair the two Bluetooth devices.
– This is something that you create. This is an authentication request. This notification appears automatically in a balloon over the Windows system tray if a Personal Identification Code is required before a connection can proceed. If the PIN code does not match the code entered on the remote device, the connection will not be allowed. Once the remote device has been authenticated this notification will not appear again, unless the paired relationship is broken and the devices must re-sync.
– A 32-digit security code that is included with the DBT-120 and is located on the back flap of the driver CD cover. If it is a rev.B4 then you shouldn´t be asked to input one.