"Diane Poremsky [MVP]" wrote in
:

AFAIK, no, because they files which are called to write the passwords are
not present in vista.

Accessing the registry is part of the Win32 API, so any program that
wants to store its configuration parameters can access the registry to
store them there. Because the protected storage keys are encrypted, I
suspect the crypto API would also be used. No extra files outside of
Outlook are required to write to the registry.

http://support.microsoft.com/kb/145679

However, it is possible the OS will interfere with the use of those
protected keys. So although the app can write to the registry and even
encrypt/decrypt the values stored there, they could be restricted from
accessing those key. I don't think we'll know if removing the read-only
accesss from those keys would get Outlook 2002/XP to work under Vista
without require the login credentials each time it is loaded until
someone tests it. I don't have Vista to do the testing.