Add-in Express components for developing
Office 2019 - 2000 extensions in VB.NET, C#, C++
Add-in Express components
Add-in Express provides many components. They are described on the following pages:
An Add-in Express based project is built around the module that represents the Office extension you are creating. The module implements the interfaces required for your add-in to be loaded by the corresponding Office application. Also, it contains the code executed when the add-in is being registered and unregistered. In addition, the module provides a design surface, you use it to store the components required by the add-in's functionality.
Specific types of Add-in Express modules are described in these articles: