I have created a bootstrpper using the dotNetInstaller tool. The created bootstrapper internally has these installers:
- .NET Framework 4.0
- SQL Server Express
Now through WiX, what are the steps that I need to follow to invoke the above Bootstrapper from WiX?
You should not invoke a bootstrapper from WiX – that has no sense. The idea behind the bootstrapper is to “bootstrap” the prerequisites of the installation (.NET and SQL Express in your case) and the main installation package. The main package you generate with WiX should be launched from inside the bootstrapper when the prerequisites are checked and optionally installed.
See this article for better understanding how to start with bootstrapper authoring with WiX.