I\'ve created setups for all my Delphi tools with Inno Setup for years. Now some users rather want an MSI installation package, so they can deploy the setups from a central
You can use Visual Studio - that's paid.
You can use https://www.advancedinstaller.com/ - that has a free edition.
You can use http://nsis.sourceforge.net/Main_Page - for example Winamp uses this installer - and is very configurable and is Open Source.