A: Start a command window and type the following command at the prompt:
change port /query
The output will look something like this:
AUX = \DosDevices\COM1 COM1 = \Device\RdpDrPort\;COM1:15\tsclient\COM1 COM2 = \Device\RdpDrPort\;COM2:15\tsclient\COM2 COM3 = \Device\RdpDrPort\;COM3:15\tsclient\COM3 LPT1 = \Device\RdpDrPort\;LPT1:15\tsclient\LPT1 PRN = \DosDevices\LPT1
From the above, you can see that COM1-3 and LPT1 are redirected. The number 15 is the session id, so that will change depending on the current session id. If they are not redirected, the output will look something like this:
AUX = \DosDevices\COM1 COM1 = \Device\Serial0 COM2 = \Device\Seri