I have installshield version 2016 + 2019. I want to add prerequisite of .Net 9 runtime. How is done?
From the InstallShield online help documentation
"The Redistributables view is where you add InstallShield prerequisites to Basic MSI and InstallScript MSI projects. The Prerequisites view is where you add InstallShield prerequisites to InstallScript projects."
You'll want to make sure that you have the prereq downloaded in your local InstallShield directory. The UI also provides a method for downloading them to your local directory.