HP UPD - System Administrator's Guide HP UPD 5.6.5

By default, the HP UPD uses, and HP recommends the use of, the Microsoft supplied Standard TCP/IP port
monitor for all network communications. If it is necessary to use the HP Standard Port Monitor, create and
configure all the network ports before HP UPD print queue creation, or reconfigure the ports after
installation.
Replace drivers
ENWW Replace drivers 237