outlook 07 not the default program

[sten]

I recently upgraded my clients from Office xp to Office 2007. I now have
about 6 clients who get an error message stating that Outlook 2007 is not
their default email program. Yet it is the only email program used on these
computers. I have checked that the checkbox in Tools/Options is checked
making it the default program and have even checked in the Registry HotKeys
that Microsoft Outlook is the default setting for Calendar, Contacts and Mail.

Any idea what has happened?

 

[K. Orland]

When you upgraded, did you create a new profile for each user? That's
recommended for the move to Outlook 2007.

 

[sten]

Yes I did. Then imported contacts, calendara and such.

 

[K. Orland]

Did you check this:

HKEY_CURRENT_USER\Software\Microsoft\WindowsNT\CurrentVersion\Windows
Messaging Subsystem\Profiles