Microsoft KB Archive/246280

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XFOR: Chat Service Does Not Run with PowerChute Installed; Ends with Error

Article ID: 246280

Article Last Modified on 10/28/2006


  • Microsoft Exchange Server 5.5 Standard Edition

This article was previously published under Q246280


When you run Microsoft Exchange Server 5.5 Service Pack (SP) 1 with the Chat service installed on a Microsoft Windows NT Server 4.0 SP 3-based computer with the American Power Conversion PowerChute service installed, the Chat service may not start. You may receive an error message about Error 16389, and Event Viewer may record Event IDs 14 and 7023 in the application log.


This behavior can occur because the PowerChute service prevents the Chat service from starting properly.


To work around this behavior, start the Chat service first. Follow these steps:

  1. Quit the PowerChute and Chat service.
  2. Set the PowerChute service startup option to Manual.
  3. Start the Chat service, and then start the PowerChute service manually.

NOTE: You must now remember to start the PowerChute service manually after each startup.

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Additional query words: UPS messaging component

Keywords: kbprb KB246280