Building installers on Windows used to be complicated. It all depended on which installation tool were you using and how was your code being distributed. Could you wrap an executable around a Zip file, or use the venerable XCOPY? Things got simpler when Microsoft introduced the Windows Installer, and its standard MSI format.
The arrival of the Windows Store and a whole new app model in Windows 8 changed things. As a result, there were two ways of deploying code, and two different ways code could run.
