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Event ID 5189 Microsoft-Windows-WAS

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  • Event ID 5189 Microsoft-Windows-WAS

    I am receiving the following on an Exchange Server 2013 CU2 installation running in Hyper-V on Windows Server 2008 R2. The error was intermittent at the start and now appears twice daily since last October. The server appears to be running fine, but the error is annoying, and we would like to get rid of it. Any ideas? Thank you.

    Log: System
    Type: Error
    Event: 5189
    Agent Time: 2014-02-26 15:39:17Z
    Event Time: 11:37:20 PM 26-Feb-2014 UTC
    Source: Microsoft-Windows-WAS
    Category: None
    Username: N/A
    Computer: HF2013.XXXXXXXX.local
    Description: The Windows Process Activation Service failed to generate an application pool config file for application pool ''''MSExchangeOWAAppPool''''. The error type is ''''7''''. To resolve this issue, please ensure that the applicationhost.config file is correct and recommit the last configuration changes made. The data field contains the error number.

  • #2
    Re: Event ID 5189 Microsoft-Windows-WAS

    CU2 is no longer supported.
    You need to be either on CU or SP1 to be supported.
    I would upgrade the server first.

    Simon Butler
    Exchange MVP

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