Installers are general-purpose applications that are created with the sole purpose to automate the steps required for installing a program.
Installer creators provide users the possibility to build a setup without needing to have any programming skills.
Most frequently, they feature a wizard interface that requires users to simply make the selections that best suit them.
Installer creators also allow users to choose the license file or the icon for the output file (which can be either a MSI or an EXE).