A free installer for Windows programs by Jordan Russell and Martijn Laan.
Developer Jordan Russell
Inno Setup is a free installer for Windows programs by Jordan Russell and Martijn Laan. Extensive support for installation of 64-bit applications on the 64-bit editions of Windows. Both the x64 and Itanium architectures are supported. (On the Itanium architecture, Service Pack 1 or later is required on Windows Server 2003 to install in 64-bit mode.)
Extensive support for both administrative and non administrative installations.
Supports creation of a single EXE to install your program for easy online distribution. Disk spanning is also supported.
Standard Windows wizard interface.
Customizable setup types, e.g. Full, Minimal, Custom.
Complete uninstall capabilities.
Installation of files:
Includes integrated support for “deflate”, bzip2, and 7-Zip LZMA/LZMA2 file compression. The installer has the ability to compare file version info, replace in-use files, use shared file counting, register DLL/OCX’s and type libraries, and install fonts.
Creation of shortcuts anywhere, including in the Start Menu and on the desktop.
Creation of registry and .INI entries.
Running other programs before, during or after install.
Support for multilingual installs, including right-to-left language support.
Support for passworded and encrypted installs.
Support for digitally signed installs and uninstalls, including dual signing (SHA1 & SHA256).
Silent install and uninstall.
Integrated preprocessor option for advanced compile-time customization.
Integrated Pascal scripting engine option for advanced run-time install and uninstall customization.
Full source code is available (Borland Delphi 2.0-5.0 and 2009) from GitHub.
Tiny footprint: only about 500 kB overhead with all features included and about 300 kB overhead with all features except Unicode support included.
All features are fully documented.
Used by Microsoft Visual Studio Code and Embarcardero Delphi.