Outlook 2010 not showing calendar reminders after SP1 installation.

Something screw up outlook reminders in Office SP1, it is documented in this Microsoft post. It’s going to be fixed in the August cumulative update, at the moment the workaround is to uninstall the SP1.


Fix: Interface not registered (Exception from HRESULT: 0x80040155) Working with TFS 2010 and MS Excel

This is simple, just execute a Microsoft  office repair from the control panel, reboot windows and that should fix the problem.