How Do I turn Office Connector off for a particular user under Citrix?
The following procedure will prevent the Office Connector toolbar from showing up for a particular user. Click Start->Run, type regedit and click OK: Navigate to “HKEY_CURRENT_USER\Software\Microsoft\Office\%Excel Version Number%\Excel\Options”. Right click “Open” and pick Modify from the popup menu. Delete the value that contains the path to your OfficeConnector.xla file.