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The Module DLL C:\Program Files\Microsoft\Exchange Server\V15\Bin\kerbauth.dll failed to load
Posted by Michael Renock on 29 January 2013 06:06 PM

After a brand new installation of the EIOBoard server, you may receive a "503 service unavailable" error.  You may notice that EIOBoard's application pool stops as soon as you try accessing the site through the web interface.  Furthermore, you may find the following error in the Event Viewer:

The Module DLL C:\Program Files\Microsoft\Exchange Server\V15\Bin\kerbauth.dll failed to load. The data is the error.

A listener channel for protocol 'http' in worker process '3300' servicing application pool 'EIOBoard' reported a listener channel failure. The data field contains the error number.

This issue is due to a faulty uninstall of Microsoft Exchange.  Here is the file that needs to be modified:

C:\Windows\System32\inetsrv\config\applicationHost.config

Comment out the follwing line:

<add name="kerbauth" image="C:\Program Files\Microsoft\Exchange Server\V15\Bin\kerbauth.dll" />

Now restart IIS, and you should be all set.