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Exchange 2010: Uninstallation Breaks Other Application

We moved one of the customer to our private cloud and Decommissioned the Exchange server.

Now a Web application which was installed on the same server stopped opening on the browser. We were browsing the application url and it was not opening anything.


Application website stopped opening after uninstalling Exchange server.


-Tried to reset application pool but no luck.

-Tried IISreset but no luck.

-Tried to restart server but no luck.

-Tried to open website locally but no luck.

-Checked the IIS logs but no luck

-Checked event viewer and identified that Event id 2280 with the following description

The Module DLL E:\Program Files\Microsoft\Exchange Server\V14\Bin\kerbauth.dll failed to load.  The data is the error.

-Now it was simple. Search for Kerbauth.dll and update the path of Kerbauth.dll.

-We searched for Kerbauth.dll but could not find one on the server.

-Copied kerbauth.dll from another Exchange 2010 and pasted to a server location.

-Opened the applicationhost.config file from C:\windows\system32\inersrv\config and look for Kerbauth then updated the path where we copied Kerbauth.dll

<add name=”kerbauth” image=”C:\Program Files\Microsoft\Exchange Server\V14\Bin\kerbauth.dll” />

-Issue fixed.


Do not install Exchange and any other application on the same server.

Prabhat Nigam

Microsoft MVP | Exchange Server


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