XFOR: How to Re-add Extensions to Exchange Server for the SNADS Connector (230272)

SYMPTOMS

After you uninstall the Exchange SNADS Connector (SNADSC) from a site that has multiple SNADSC, then you attempt to administer the remaining SNADSC in the same site using the Exchange Server Administrator program, the following error messages may occur:

Extension 'lssnacp0' could not be loaded. The extension for Microsoft Exchange Administrator's CPU type has not been installed in the site. Microsoft Exchange Administrator ID no: c1031667

Extension 'LSMSGTRK' could not be loaded. The extension for Microsoft Exchange Administrator's CPU type has not been installed in the site. Microsoft Exchange Administrator ID no: c1031667

Extension 'LSQVIEW' could not be loaded. The extension for Microsoft Exchange Administrator's CPU type has not been installed in the site. Microsoft Exchange Administrator ID no: c1031667

Selecting Ignore on each error message opens the SNADSC property pages, however the Options and the Message Tracking tabs will be missing. Moreover, the Queues tab will only show two queues, the MTS-IN and the MTS-OUT queues.

CAUSE

When one SNADSC is uninstalled from a site that inculdes several SNADSC, the replication process removes the Exchange Server extensions supporting the SNADSC from all Exchange servers in the site. Mail flow still works, but the above error messages occur when you attempt to access the property page for the SNADSC.

RESOLUTION

To re-add these missing components, run the following commands from the Exchsrvr\Connect\Exchconn\Install directory of an existing SNADS Connector (substitute your Exchange Organization, Site, and Server names in the appropriate places). These commands add these missing components and propagate the components to the other servers in the site.

mexiextn /org=ORG /site=SITE /server=SERVER /machine=i386 /name=LSMSGTRK /extdll=\\server\add-ins\lsmsgtrk\i386\lsmsgtrk.dll /display_name="Extension for Connectivity Message Tracking for i386"

mexiextn /org=ORG /site=SITE /server=SERVER /machine=i386 /name=LSQVIEW /extdll=\\server\add-ins\lsqview\i386\lsqview.dll /display_name="Extension for Connectivity Queue Viewer for i386"

mexiextn /org=ORG /site=SITE /server=SERVER /machine=i386 /name=LSNTSCP0 /extdll=\\server\add-ins\lssnacp0\i386\lssnacp0.dll /display_name="Extension for SNADS Connector for i386"

After you run each command individually, review the Lmeilog.txt file in the same directory, and look at the last entry to see if the command was successful. Alternatively, in the Exchange Server Administrator program, select the Add-ins container (press F5 to refresh), and see if the component now appears. If the display name for the component does not appear in the list, the command was unsuccessful.