How to develop Office add-ins in Visual Studio
Tips for C#, VB.NET and C++ developers
Tips and notes
You might have an impression that creating add-ins is a very simple task. Of course, Add-in Express makes embedding your code into Office applications very simple, but you should write the applied code yourself, and we guess it would be something more intricate than a single call of MessageBox.
Below we gathered together answers to typical questions. The answers are grouped into these categories: