What is the Registry setting to disable Cached Exchange Mode for Outlook 2010?
It does not appear to be the same as the Outlook 2003 key (13dbb0c8aa05101a9bb000aa002fc45a).
The default way is different, you can configure it by this guide
EDIT: I just found this, it might work with these settings, can't check it though:
Cached Exchange Mode is controlled by the following key: