In order to provide a more integrated experience for folks building custom solutions on the Office platform, we’ve merged the content from the VSTO Developer Center into the Office Developer Center. You’ll still find great learning content there including:
Write code to work with data and customize the user interface.
Work with objects and data and customize the Outlook user interface.
Manipulate documents, work with data, and customize the Word user interface.
Learn to deploy Office customizations built with Visual Studio.
– The VSTO Team