Inno Setup is a free installer for Windows programs. First introduced in 1997, Inno Setup today rivals and even surpasses many commercial installers in feature set and stability.
Inno Setup key features:
- Support for every Windows release since 2006, including: Windows 11, Windows 10, Windows 10 on ARM, Windows Server 2019, Windows Server 2016, Windows 8.1, Windows 8, Windows Server 2012, Windows 7, Windows Server 2008 R2, Windows Server 2008, and Windows Vista. (No service packs are required.)
- Extensive support for installation of 64-bit applications on the 64-bit editions of Windows. The x64, ARM64 and Itanium architectures are all supported.
- 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.
- Unicode installs.
- 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 from GitHub.
- All features are fully documented.
- Used by Microsoft Visual Studio Code and Embarcardero Delphi.
Inno Setup 6.7.1 changelog:
General improvements
Compiler:
- When setting WizardBackImageFile, the compiler now also checks whether a custom style was specified via WizardStyleFile.
- The compiler"s retry mechanisms now also retry the initial copy of the E32 file to the output EXE.
Compiler IDE:
- Improved section folding to allow folding of (entire) functions and procedures in the [Code] section.
- Added new Smart Home key option, enabled by default.
- Added a banner that will appear in April 2026, inviting you to share your ideas and vote on others on an ideas board, open that month only.
Setup:
- Improved enumeration of the Windows PendingFileRenameOperations registry value.
- If you use restartreplace flags in your [Files] section, updating is recommended.
- Edit controls that take paths to directories now exclude names of files from their AutoComplete lists.
- Added workaround for slower folder browsing on Windows 11 25H2.
Other changes
Pascal Scripting:
- Added new Alignment property to support class TNewStaticText. See updated CodeClasses.iss example script for an example.
- Added new AutoCompleteFiles property to support class TNewPathEdit. If set to False (the default value), only directory names are included in the AutoComplete list. If set to True, file names are included as well.
ISPP:
- The date and time separators of support functions GetDateTimeString and GetFileDateTimeString are now truly optional, rather than requiring empty strings.
- Added new support function EmitLanguagesSection, to generate a full [Languages] section for all available official languages, including English. Example: #expr EmitLanguagesSection.
- When possible, the Compiler IDE"s New Script Wizard will use this function.
- Added official Thai translation.
- Other minor improvements.
Using Inno Setup commercially? Please purchase a license.
Download: Inno Setup 6.7.1 | 10.1 MB (Freeware)
View: Inno Setup Website | Screenshot
