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Add-in Express for Office and .NET is an all-in-one framework for developing commercial class Microsoft Office extensions such as Office COM Add-in, Outlook plugin, Excel XLL, UDF, RTD Server and smart tag.
It works with all editions of Visual Studio, including Express, and all versions of Microsoft Office from 2000 to Office 2016.
Add-in Express provides you with a range of visual designers, components, Visual Studio item and project templates and deployment tools that make creating quality Microsoft Office extensions easy and fun.
You no longer need to worry about implementing extensibility COM interfaces or hand coding your Office add-in UI using XML. Add-in Express makes deploying your applications a one-click operation and removes the headache of manually creating deployment scenarios and working with the Windows registry.