From: hdn on
This is an annoying problem that's haunting me for month:
In any Office 2007 Open & "Save as" dialog box there's a location selector
for "My SharePoint-Websites". In this location there are a number of
SharePoint sites that have accidentaly been memorized here. As the owner of
some of these sites has not given permission to me to access these sites,
trying to access one of those will pop up a login box and that's exactly what
happens in any Office application (Outlook, Word, Excel, Powerpoint, etc.) at
random times. I'm not aware of any special user action that triggers the
connect, so you couldn't even avoid it by not opening and saving any files.
You can find out the Office application causing the connect by the
application tab that's assigned to the "Connect to <website>" login box. As
the box always comes up again when you click Abort, the only chance to ger
rid of it is to shutdown the responsible application thereby closing all
normal windows you have in this application. But of cause this is only a
short term solution as some times later the next Office application starts
the connect problem again. I tried to empty the directory that represents
this locations that can be found under <user_home>\local settings\application
data\Microsoft\Office\My SharePoint-Websites, but the entries are
automatically recreated, so this didn't work.
(BTW: I translated directory names from what they read in German, so they
might not be literally correct for the English Office.

Does anyone know where these locations are memorized in Office and how to
control what's stored there? I'm not aware that I got any SharePoint list or
calender on one of those sites connected to Office, e.g. none of them is
listed in the SharePoint-Lists Tab of my Account Settings in Outlook, so I
just don't know where to start besides going deep into those thousands of
registry keys that might contain those cumbersome references.

Help!