Microsoft KB Archive/246491

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Access Is Denied Printing to LPT1 or LPT2 Port on an HP 4000 Printer

Article ID: 246491

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Standard Edition

This article was previously published under Q246491

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry


When you try to print to a Hewlett-Packard (HP) 4000 printer through the LPT1 or LPT2 port on a computer running Microsoft Windows NT Workstation 4.0 Service Pack 3 or Microsoft Windows NT Server 4.0, the print job may not be printed and you may receive the following error message:

Access is denied printing to <port>...


WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To resolve this behavior, delete the HP print monitor information values from the registry:

  1. Using the Services tool in Control Panel, stop the Spooler service.
  2. Start Registry Editor (Regedt32.exe), and then locate the following registry key:

  3. Delete the HP Jet Admin value and the HP Language Monitor value.
  4. Restart the computer.

    NOTE: The Spooler service starts automatically when you restart the computer.

Additional query words: nt 4.0 print hewlett

Keywords: kbprb KB246491