I am using Version 6.95 and the Orion I works fine with it. The contest Computer runs MS-DOS 6.22 and has 4 COM Ports. COM 1 is Internet Packet piped in on a Null Modem cable from WinTelNetX on a WIN 7 computer (2400 Baud; N,7,1) COM 2 is Radio (57,600 baud) (N,8,2) COM 3 is keying (2400 baud) (N,8,1) 73, John, W4NU K4JAG (1959 to 1998)