Source: https://wixtoolset.org/documentation/manual/v3/bundle/

  • Bundle:
    • collection of installation packages chained in a single user experience
  • Burn:
    • the bootstrapper/chainer engine
    • hosts a DLL called “bootstrapper application”
      • the boostrapper application (a DLL!) displays the UI to the end user and directs the Burn engine to execute actions, such as download, install, repair, uninstall.
  • The Wix toolset provides a standard bootstrapper application and the language necessary to create bundles

Some links to get one started: