Setup/Installation Proyect c# VS 2017 : I have created an standard installation project. I require to update the string connection over user imput and run an script to Create DB on selected String connection.

I am following the following articule https://www.codeproject.com/Tips/446121/Adding-connection-string-during-installation#_articleTop

But I do not understand where to create the Installation class.

Any suggestion on how to perform this task?

Thanks in advance,