Microsoft KB Archive/162168

= DLC Printers Show "Status Unknown" After Restarting Spooler =

Article ID: 162168

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q162168



SYMPTOMS
After restarting the spooler service, all DLC print queues show "Status Unknown." The Application Event Log shows the following data:

  Event ID: 1002 Source:  hpmon Type:    Error Category: None

OpenAdapter failed with error (0x015E). Make sure the DLC protocol is  properly installed.

Event ID: 1050 Source:  hpmon Type:    Error Category: None

The DLC protocol is not loaded. Make sure the DLC protocol is properly installed.



CAUSE
The DLC adapter was moved from primary to secondary and there is no secondary adapter.



RESOLUTION
WARNING: Using Registry Editor incorrectly can cause serious system-wide problems that may require you to reinstall Windows NT. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

To change the adapter selected back to primary (0):
 * 1) Run the Registry Editor (Regedt32.exe).
 * 2) Under the HKEY_LOCAL_MACHINE subtree, go to the following subkey:


 * 1) Double-click Adapter:REG_DWORD:0x1.
 * 2) In the DWORD Editor dialog box, change data from 1 to 0 and click OK.
 * 3) Exit Regedt32.exe.
 * 4) Stop and restart the spooler service.

Additional query words: prodnt hpmon

Keywords: kbnetwork kbprint kbsetup KB162168

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