This project was abandoned... and the thing with what Mr.Razor12911 was left... is the setup.exe itself (probably based on Installer handler dll)
By the way look in the threads given below.. might save up some of your time in case of seeking search results...
https://fileforums.com/showthread.ph...etro+installer
https://fileforums.com/showthread.ph...etro+installer
https://fileforums.com/showthread.ph...etro+installer
They are distinguished thread
Have nice moments