How to identify the installer software type(whether it's NSIS, Inno, Windows Installer etc.)?

I need to detect what type开发者_如何学Go of installer software is being used for a particular software. How do I do that?

I don't think there's a common way to do it which fits each vendor. I can only talk about Windows Installer based vendors, like InstallShield and WiX. If you use extra functionality provided by a certain vendor (built on top of usual Windows Installer stuff), this can be various custom MSI tables or just specific MSI properties. The Orca tool and verbose installation log file are helpful tools.