Microsoft KB Archive/247719

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Windows Load Balancing Service Writes Multiple Duplicate Event Log Messages

Article ID: 247719

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Server 4.0 Enterprise Edition
  • Microsoft Windows NT Server 4.0 Standard Edition

This article was previously published under Q247719


If your Windows NT 4.0-based computer is configured to use the Windows Load Balancing Service (WLBS) and experiences network communications problems, multiple, duplicate messages may be written to the computer's event log. If you have auditing enabled, the event log may become filled with these messages and a new event may not be logged, even if it is from a critical service. If the event log fills to its configured capacity, the computer may stop responding (hang).


A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:

   Date       Time     Size      File name   Platform
   10/12/99   07:44p    36,112   Wlbs.exe    x86
   10/29/99   01:06p    60,208   Wlbs.sys    x86
   10/12/99   07:43p    51,472   Wlbs.exe    Alpha
   10/29/99   01:05p   101,104   Wlbs.sys    Alpha


Microsoft has confirmed that this is a problem in Windows NT 4.0.

Keywords: kbbug kbfix kbinterop kbnetwork KB247719