The Module DLL C:\Program Files\Multi-Factor Authentication Server\pfiisnm.dll failed to load.  The data is the error.

Patrick used Ask the Experts™
Active Sync is down on our Exchange 2013 server but client based is working fine. This error comes up nearly ever second or so. We had Microsoft Multi-Factor Authentication Server installed initially but didn't really like it so it was removed. Now this error is popping up.

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Solved. I Remove the pfiisnm.dll  entry from applicationhost.cofig (c:\windows\system32\inetsrv\config)Note: Remember take a backup before you remove the line.

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