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ddg://enumerate COM ports site:perlmonks.org -> open com port list, Re: finding a serial port with Win32::SerialPort, Marrying Tk, threads and SerialPort - a COM port monitor

$ reg query "HKLM\Hardware\DEVICEMAP\SERIALCOMM

! REG.EXE VERSION 3.0

HKEY_LOCAL_MACHINE\Hardware\DEVICEMAP\SERIALCOMM
    \Device\AgereModem5 REG_SZ  COM3


$ mode COM2
Illegal device name - COM2

$ mode COM3

Status for device COM3:
-----------------------
    Baud:            1200
    Parity:          Even
    Data Bits:       7
    Stop Bits:       1
    Timeout:         OFF
    XON/XOFF:        OFF
    CTS handshaking: OFF
    DSR handshaking: OFF
    DSR sensitivity: OFF
    DTR circuit:     ON
    RTS circuit:     ON
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