To install the ScanMan software, it is necessary to connect the cradle for the mobile computer to a PC running Microsoft ActiveSync software (Windows XP and earlier) or Windows Mobile Device Center (Vista and later). The cradle is generally connected via a USB port (communications port) on the PC, but older models allow for use with a serial connection. With a USB connection, port communication parameters like baud rate are automatically discovered and configured for you. With a serial connection, you have to specify port communication parameters yourself.