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ClassFactory cannot supply requested class (4280435)

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Title

ClassFactory cannot supply requested class
Description

When running the Exchange Utility the follow error is logged.
ERROR EU.URLRepairThread - {{c86972a2-df3e-43fe-9df3-061620e71ba2}} Error while updating URL 'https://archivemanager.Domain.com' for messages in MailBox 'User, Name'
System.ComponentModel.Win32Exception (0x80004005): ClassFactory cannot supply requested class
at Dell.AM.MAPI.MAPIUtilityV2.IntermediateObjects.Row.IMSession.OpenStore(ENTRYID storeID, IntPtr uiParam, FLAGS openMsgStoreFlags)
Cause

Problem with a dll registration.
Resolution

1. Login to the AM server as an adminstrator
2. Stop "Archive Manager Exchange Store Manager Service" and "Archive Manager Data Load Service"
3. Open a command prompt as Administrator.
4. Change to your install directory. by default its "C:\Program Files (x86)\Dell\Archive Manager" for Archive Manager versions 5.3 and below and C:\Program Files (x86)\Quest\Archive Manager for versions 5.4 and above
5. run the following command minus the quotes:
For versions below 5.3 - "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm /tlb:maputilityv2.tlblog Dell.AM.MAPI.MAPIUtilityV2.dll"
For 5.4 and above "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm /tlb:maputilityv2.tlblog Quest.AM.MAPI.MAPIUtilityV2.dll"
You should get a message back "Types registered successfully"
6. Run the ExchangeUitilty tool and verify issue is resolved.
7. start the ESM and DataLoader services

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Product(s):: Archive Manager

Topic(s):: Troubleshooting

Article History:: Created on: 2/9/2017
Last Update on: 5/7/2023

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