June 2023 CU for Office Online Server is available for download

The product group released the June 2023 Cumulative Update for Office Online Server.

The KB article for June 2023 CU will be available at the following Location in a couple of hours:

  • KB 5002401 – June 2023 Update for Office Online Server

The download for June 2023 CU is available through the following link:


  1. After install this update on our farm me have a problem with Exell Online. Some times we can’t open the documents on browser. On evern viewer on oos host have this error:

    Faulting application name: w3wp.exe, version: 10.0.14393.0, time stamp: 0x57899b8a
    Faulting module name: xlsrv.dll_unloaded, version: 16.0.10399.20000, time stamp: 0x6463380d
    Exception code: 0xc0000005
    Fault offset: 0x0000000001ecbf7a
    Faulting process id: 0x13bc
    Faulting application start time: 0x01d9aff8df08bcfb
    Faulting application path: c:\windows\system32\inetsrv\w3wp.exe
    Faulting module path: xlsrv.dll
    Report Id: 93069a4e-6fef-4802-8e0f-a0042801096a
    Faulting package full name:
    Faulting package-relative application ID:


  2. Office online server is working fine with Excel and word (but PowerPoint keeps on loading)

    windows server 2022, sharepoint 2019


    Office online server kb5002401 is installed

    windows KB5005575 installed

    Getting error messages in event viewer office web apps monitoring

    Event ID 2007

    AgentManagerWatchdog reported status for AgentManagerWatchdog in category ‘Recent Watchdog Reports’. Reported status: Machine health is Unhealthy

    Now let’s fix 1st PowerPoint issue in OOS

    now I’m trying to open the powerpoint fine from url.com/op/generate.aspx#now I’m trying to open the PowerPoint fine from url.com/op/generate.aspx# with sharepath (\server\file.pptx)

    only PowerPoint is not working. excel is opening fine.

    with session id on OOS

    it seems the issue satart from WACconversionResultErrorinfo: itemRetrivalStatus: conversion Error……conversionResult: workerException Event ID a22x cat: Powerpoint front end


    pipemanager::onreqeustcomplte-exception occurred while executing the request

    cat: PowerPoint web services


    Cat: office viewing Architecture, event id: amsva

    AsyncResult::setcompleted-completesd with unthrouwn exception microfot.offfice.server.powerpoitn.pipe.interface.pipe.applicationexception: ErrorWACConversionWorkerExeption

    at MS.Office.server.powerpoint.pipe.web.wacviewservces.EndGetItem(IAsyncResut. asyncResult)

    at MS.Office.server.powerpoint.pipe.Interface.ResourceReqeust.End(IAsyncResut. asyncResult)

    at MS.Office.server.powerpoint.pipe.Interface.pipeManager.onreqeustComplete(IAsyncResut. asyncResult)WACconversionresult Errorinfo: itemretrivalstatus: conversionError: Errorcode: errorWacConversionException: ConversionResult: worker exception


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