Outlook 2007 "Failed to create an RDO session"

[dgrindle]

I just upgraded my Office 2003 Pro to Office 2007 Pro. When I start Outlook a
dialog box immediatly pops up titled CExtensionCMD and inside the dialog box
it says "Failed to cerate an RDO session instance: Class not registered".

I've restarted Outlook in safe mode and disabled all add-ons, I've gone to
Microsoft Update and installed all Office 07 updates, even uninstalled
Outlook and reinstalled it but no luck.

Any help would be appreciated