These are the Com port values the SHN Utility uses to access a PLM. It is the application that establishes these values not the OS.
PLMConnection.SerialCom1.BaudRate = 19200
PLMConnection.SerialCom1.Parity = Parity.None
PLMConnection.SerialCom1.DataBits = 8
PLMConnection.SerialCom1.StopBits = 1
Flow Control is None
When the Connect button is clicked do you see the PLM address and firmware level displayed in the lower left side of the SHN Utility display.
The SHN Utility is an XP appliaction.