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Title
ESM and Journaling not processing messages Error: "[80040154] Class not registered" in MailboxID-xx-yyyymmdd.log and DataLoaderID-x-yyyymmdd.log -
Description
You notice that Journaling and ESM are not processing any messages. After looking at the MailboxID-xx-yyyymmdd.log and DataLoaderID-x-yyyymmdd.log you notice the following error:
14:27:53 ERROR: MIMEHeaderParser.CreateInstance:
14:27:53 [80040154] Class not registered
14:27:53 Statistics for this run14:27:53 _____________________________________14:27:53 Folders processed : 014:27:53 Messages processed : 0 (0 linked)14:27:53 Attachments processed : 014:27:53 Errors : 114:27:53 Warnings : 0You will also see similar errors in the Mailbox Scan Status page.
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Resolution
Note: The error has been known to occur when upgrading from Archive Manager 4.8 to a 5.x version of Archive Manager where .NET Framework was updated through a Windows Update from .NET 4.0 to 4.5.2 prior to installing Archive Manager 5.xIf this is the case, Uninstall .NET Framework and Reinstall the supported version of .NET Framework (and Reliability Update if required) as per the Archive Manager Release Notes, and then follow the below.If this is not the case then register the dll as follows without reinstalling .NET1. Stop the Exchange Store Manager and Dataloader service.
2. Open the command prompt window as Administrator
3. Change to the AM install directory. "C:\Program Files (x86)\Dell\Archive Manager" or "C:\Program Files (x86)\Quest\Archive Manager"
4. Run the following command:
If running 5.3:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe Dell.AM.ESM.Mlib.dll
If running 5.4:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe Quest.AM.ESM.Mlib.dll
5. Start the Exchange Store Manager and Dataloader service.
6. Monitor the logs files to determine if messages are now being processed.
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Additional Information
You can use this article to verify the .NET version that is currently installed: https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx