KB0021 - "Installing Office customization" error starting Outlook 2010
You receive an error Installing Office customization when starting up Outlook 2010 as below:
Issue
You receive an error Installing Office customization when starting up Outlook 2010 as below:
Reason
OnePlaceMail cannot find the file “FileToWSSOutlookAddIn.dll.manifest” in the OnePlaceMail install directory. This file should be in the install directory as below:
Solution
Uninstall OnePlaceMail client and reinstall on the machine. Confirm that the above file is now present, then startup Outlook 2010.
Posted in Installation