I've updated and improved the Excel-DNA NuGet package. (NuGet is the Visual Studio package manager that makes it easy to download and install external libraries into your projects.)
To turn your Class Library project into an Excel add-in, just open Tools -> Library Package Manager -> Package Manager Console, and enter
PM> Install-Package Excel-DNA
The Excel-DNA package now has an install script that creates the required .dna file, and a post-build step to copy the .xll and run the packing tool, and even configures debugging. The package should work for C#, Visual Basic and F# Class Library projects on:
- Visual Studio 2010 Professional and higher
- Visual Studio 2012 Professional and higher
- Visual Studio 2012 Express for Windows Desktop
Please post any feedback - bugs, good or bad comments - to the Excel-DNA Google group.