Post CU23 update excahnge issues

John Lenz 1,596 Reputation points
2021-03-10T19:17:01.107+00:00

Server2012R2 Std
Exchange 2013 CU23
Patch applied

IN/out is working on mailboxes to outlook 2012/2019.
I tried OWA web access and got the login in then "bad request"
I went to exchanger sever and tried to launch "Exchange Administrative Center" and got this...

Could not load file or assembly 'Microsoft.Exchange.Common, Version=15.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

What happened and how do I correct it

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. KyleXu-MSFT 25,866 Reputation points
    2021-03-11T06:28:10.433+00:00

    @John Lenz

    Here are detailed information from above article, try to reinstall this KB with administrator rights:

    76624-qa-kyle-14-25-10.png

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  2. John Lenz 1,596 Reputation points
    2021-03-11T14:24:59.857+00:00

    My post did not take. Yes elevated now works

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