XFOR: Error Message: Extension MS Could Not Be Loaded (247276)
The information in this article applies to:
- Microsoft Exchange Server 4.0
- Microsoft Exchange Server 5.0
- Microsoft Exchange Server 5.5
This article was previously published under Q247276 SYMPTOMS
When you use the Microsoft Exchange Server Administrator program to view the properties of the Microsoft Mail Connector object in the Connections container, the following error message may be displayed:
Extension 'MS' could not be loaded.
CAUSE
This issue can occur if any one of the three following conditions exists:
RESOLUTIONThe Add-Ins Folder on the Exchange Server Computer Is Not Shared
To resolve this issue if the cause is the first condition in the "Cause" section of this article, set the following correct shares and permissions for the Add-ins subfolder:
Share Name: Add-ins
Path: \Exchsrvr\Add-ins
Permissions:
Everyone: Read
Local Administrators Group: Full Control
Exchange Service Account: Full Control
If the Add-ins share is not set correctly, you should also check the other default shares and permissions. For additional information, click the article number below
to view the article in the Microsoft Knowledge Base:
147376 XADM: Names and Permissions of Exchange Server Shares
Incorrect Version DLL for Conadmin.dll or Mismatch with Exchange Server Directory Version of Conadmin.dll and DLL File Version
To resolve this issue if the cause is the second condition in the "Cause" section of this article:
- Verify the build version that you are using. You can do this by checking the properties in the following location:
Organization\Site\Configuration\Server\server_name - Check the actual file version of the file on the hard disk drive in the following location:
Exchsrvr\Connect\Msmcon\Bin\Conadmin.dll
- If the versions do not match, replace the file manually from the Exchange Server computer or Exchange Server service pack CD-ROM.
- Verify the file version for the extension DLL. This can be done by checking the properties of:
Organization\Site\Configuration\Add-Ins\Extension for MS Mail Connector for i386
- If the file versions do not match, change the version in the directory by using the Exchange Server Administrator program in raw mode.
For additional information about how to change the value by using the Administrator program in raw mode, click the following article number to view the article in the Microsoft Knowledge Base:
196924
You receive an "Extension 'SMTP' could not be loaded" error message in Exchange Server 5.0 and in Exchange Server 5.5
Shares on Computer Running Microsoft Windows NT Server with IRPstackSize Parameter Set Too Low Accessed from a Windows NT Client
To resolve this issue if the cause is the third condition in the "Cause" section of this article, either correct the IRPstackSize parameter or apply the fix that corrects this problem.
For additional information about how to correct the IRPstackSize parameter and a fix that corrects this problem, click the article number below
to view the article in the Microsoft Knowledge Base:
198386 Changes in IRP Stack Size in Lanman Server
Modification Type: | Minor | Last Reviewed: | 4/28/2005 |
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Keywords: | kbprb KB247276 |
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