Overview

The users may receive a KOFMSP.dll warning while trying to start the Outlook. In such cases, the Kerio Outlook Connector Offline Edition needs to be reinstalled.

KOFF can cause Outlook to freeze or crash with such warning:

"Cannot open the Outlook window. The set of folders cannot be opened. An unexpected error has occurred.
MAPI was unable to load the information service C:\Program Files (x86)\Kerio\Outlook Connector (Offline Edition)\KOFMSP.DLL."

Process

Note: KOFF reinstall should be tried before resetting it from the server-side. 

1. Remove the Outlook profile.

2. Remove KOFF [Kerio Outlook Connector (Offline Edition)] and the Kerio Updater Service from the Add/Remove Program feature in the Windows Control Panel.

   
3. If the process failed to uninstall, use the KTUninstall tool to remove unnecessary files.

4. Remove the following folders:

   • C:\Program Files (x86)\Kerio\UpdaterService

   • C:\Program Files (x86)\Kerio\Outlook Connector (Offline Edition)

   • C:\Program Files\Kerio\Outlook Connector (Offline Edition)

   • C:\Users\*user-name*\AppData\Local\Kerio\Outlook Connector

5. Reboot the client PC.

6. Run an online repair for the Office application.

7. Download and install KOFF.

8. Recreate the Outlook profile.

Confirmation

The Outlook application is running without any warnings.

Related Articles

Rebuilding KOFF Profile on Windows

Manually Clearing KOFF Cache on Client PC

Unable to Install KOFF Due to Multiple Outlook Installed in the System

Recreating an Outlook Profile When Using the Kerio Connector

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