Creating a silent installer for a MSI
What is the best way to make a silent installer (or unattended) for a program that was already created and has a msi installer? At work I'm told to create an installer that is automated and does all the interaction with the user automatically so that the user essentially just hits one button and it runs through the msi installer of the program that was already developed. Also I have to make it replace a couple files in the directory. Is it possible to make a installer automate another installer? Can it be done using WIX in visual studios or NSIS? Do I need to be able to pull the already