Microsoft KB Archive/247898

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Cannot Add LPR Port in Add Printer Wizard in Windows NT Server 4.0

Article ID: 247898

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Server 4.0 Standard Edition

This article was previously published under Q247898


When you view the properties of your print server, you may find that not all of the line print remote (LPR) ports appear. Also, LPR may not be an available option for adding ports, either in the Add Printer Wizard or from the Ports tab of the server's properties dialog box.

When you use the Tlist.exe utility, which is in the Microsoft Windows NT Server 4.0 Resource Kit, to display a list of tasks that are running on your computer, Lprmon.dll is not in the list of modules running in Spoolss.exe.


This behavior can occur because of a conflict with a third-party port monitor.


To resolve this behavior, stop the spooler, remove the conflicting third-party port monitor and restart spooler.


There are two ways to remove the conflicting monitor:

  • Rename the driver for the conflicting port monitor. You can find the name of this driver at the following registry key:


    NOTE: This is the recommended method.


  • Back up the Printers key in the registry, and then delete the conflicting port monitor from the registry.

Keywords: kbprb KB247898