LISTPORTS — List local printer ports.

Syntax:
LISTPORTS ​/I ​/N ​name…

/Iinclude IP printer ports
/Ninclude non-IP printer ports
name…may contain wildcards

If neither /I nor /N is specified, both IP and non-IP ports will be listed.

You may specify one or more name parameters containing wildcards (inclusion masks), e.g. LPT* to list all ports whose names begin with the letters LPT. Any port that matches any of the inclusion masks will be included in the list. You can also specify wildcarded names to exclude; precede these with an exclamation point, e.g. !*IMAG* to exclude all ports whose names contain the string “IMAG”. Exclusion masks override inclusion masks. Any port which matches any exclusion mask will not be shown, even if it matches one or more inclusion masks.

If you do not specify any name parameters, LISTPORTS will list all printing ports available on the local machine.