Unmanaged API Reference (Visual Studio Tools for Office)
Applications in the 2007 release of Microsoft Office use an interface to call into an add-in loader component that is included with the Visual Studio Tools for Office runtime. This component is used to help load managed add-ins. You can create your own add-in loader component by implementing this interface.
In This Section
Defines methods that you can use to create a component that loads managed add-ins in applications in the 2007 Microsoft Office system.