Is the Kayxo Insight Message Store Provider implementation based on a Microsoft Outlook feature or is it a “hack” for Microsoft Outlook?
Kayxo Insight Message Store Provider is not a hack. Microsoft Outlook provides the message and address book store provider interfaces. MAPI SDK (published on MSDN website) contains the necessary information to extend Microsoft Outlook with new store providers. Since MAPI is a nativeAPI that uses Component Object Model (COM) to define its components and interfaces, the store provider can only be created using low level languages such as C and C++.
