https://devblogs.microsoft.com/buckh/visual-studio-setup-projects-vdproj-will-not-ship-with-future-versions-of-vs/
Visual Studio setup projects (vdproj) will not ship with future versions of VS - Buck Hodges
Mar 17, 2011 - [UPDATE 04/18/14] The Visual Studio team has released an extension to VS 2013 to address the feedback on this, which has been loud and clear for a long time...