Hi,

Is the EntryID property for an Outlook Folder guaranteed to be unique
across multiple mail stores? My Outlook add in currently persists the
only the EntryID of a folder selected by the user (typically in his
default mail store, but theoretically could be from any of the stores
available to the user) so as to be able to reference that folder. So
when I need a reference to this folder, I use
Namespace.GetFolderFromID(mySpecialFoldersEntryID), without specifying
a StoreID. Is this guaranteed to work even if the user subsequently
decides to configure multiple stores of any type? Or will I need to
persist the StoreID of the folder as well?