This article addresses the issue where you receive a message when trying to synchronize your Outlook Calendar with Workplace saying “Workplace and Outlook are running at different integrity levels”.
The cause of this is that either Workplace is running as the Administrator while Outlook is running as the Current User, or Workplace is running as the Current User and Outlook is running as the Administrator. Both programs need to be running as the Current User, or both programs need to be running as the Administrator.