Article ID: 924170 - View products that this article applies to.
When you try to remove Microsoft Exchange 2000 Server or Exchange Server 2003 from a mailbox server in an Exchange organization, you receive the following error message:
You experience this problem even if you performed one or both of the following actions:
The component "Microsoft Exchange Messaging and Collaboration Services" cannot be assigned the action "Remove" because:
-One or more users currently use a mailbox store on this server. These users must be moved to a mailbox store on a different server or be mail disabled before uninstalling this server.
This problem may occur if a user account in the Active Directory directory service has the affected mailbox server listed on the msExchHomeServer attribute.
To resolve this problem, remove the affected mailbox server entry from the msExchHomeServer attributes in Active Directory. To do this, follow these steps.
Step 1: Determine whether one or more users have the affected server listed as their Exchange home serverPerform a query to determine whether the affected server is listed in the msExchHomeServerName attribute. If the affected server is listed in the msExchHomeServerName attribute for one or more users, you cannot remove Exchange. To perform this query, follow these steps:
Step 2: Remove the server from the msExchHomeServerName attributeWarning If you use the ADSI Edit snap-in, the LDP utility, or any other LDAP version 3 client, and you incorrectly modify the attributes of Active Directory objects, you can cause serious problems. These problems may require you to reinstall Microsoft Windows 2000 Server, Microsoft Windows Server 2003, Microsoft Exchange 2000 Server, Microsoft Exchange Server 2003, or both Windows and Exchange. Microsoft cannot guarantee that problems that occur if you incorrectly modify Active Directory object attributes can be solved. Modify these attributes at your own risk.
If you verify that one or more users have the affected mailbox server listed in the msExchHomeServerName attribute, remove the mailbox server from the particular user's msExchHomeServerName attribute. To do this, follow these steps.
Note If you do not require this user account, you can remove the particular user account instead of following these steps:
If these steps do not help you to resolve the problem, see the following Microsoft Knowledge Base article:
279202For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/279202/ )You receive a "c1034a7f" error message when you delete a mailbox store
260378To obtain the Windows 2000 Service Pack 4 (SP4) Support Tools, visit the following Microsoft Web site:
(http://support.microsoft.com/kb/260378/ )How to manually remove an Exchange 2000 installation
Article ID: 924170 - Last Review: August 21, 2012 - Revision: 2.1