Compressed files are decompressed and copied to the target directory.

Setup.exe is a standard, executable file used in Windows environments to initiate the installation, configuration, or removal of software applications. While sometimes appearing simply as a "wrapper" to decompress files, it frequently acts as a sophisticated , managing dependencies, user interfaces, and registry updates to transition software from a distributable format to a fully functional application on a target machine.

The setup initializes its own engine and validates files.

Registry entries are created, and shortcuts are added to the Desktop or Start Menu.

It can serve as a wrapper for multiple .msi packages or compressed CAB files, enabling a "single click" installation experience. 2. Types of Setup.exe Installers