VS 2013 Shell (PN)~ A solution which allows you to create your own Visual Studio-based application in either integrated or isolated mode. In integrated mode many Visual Studio features are available in addition to your application. In the isolated mode you choose a subset of Visual Studio features that you wish to distribute along with your own extension. VS Enterprise (PN)~ The edition of Visual Studio 2015 including all of the features available with the development tools to build mission-critical enterprise solutions.