The SApplicationObject service provides access to a pointer to the host's add-in model. The add-in model is the top-level Application object, an Automation object that designers, wizards, and add-ins can use. Not all hosts implement this service, and different hosts define the add-in model differently. Refer to your host documentation for more information.
You can query the service for the IDispatch and IUnknown interfaces. For information on these interfaces, see the Automation Programmer's Reference in the Platform Software Development Kit (SDK).
The service identifier (SID) for this service is SID_SApplicationObject.