Add-In Manager? - Revit Forum
www.revitforum.org › forum › revit-architectureNov 23, 2012 · March 1, 2019, 11:40 PM. That's not a dumb question by any stretch of the imagination. First, you would have to have Visual Studio Community (the free version), which is needed to open the .sln file that you see in the .zip file. If you open the solution (.sln) file in VS Community, then it 'build' the solution, you should be ready to go. I think.