innoextract
A tool to unpack installers created by Inno Setup

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About

Inno Setup is a tool to create installers for Microsoft Windows applications. innoextract allows to extract such installers under non-windows systems without running the actual installer using Wine. innoextract currently supports installers created by Inno Setup 1.2.10 to 5.5.4.

Author: Daniel Scharrer (daniel@constexpr.org)
License: zlib/libpng

I originally created innoextract as a way to extract GOG.com installers and Arx Fatalis patches without relying on Wine (for the Arx Libertatis project). However, innoextract should be able to extract all installers that were created by Inno Setup. See the list of limitations below.

While developed on Linux, innoextract is meant to work with any C++03 / C++11 compiler, architecture and operating system supported by CMake, Boost, liblzma and iconv.

Announcements

Download

The current version of innoextract is 1.4 (changelog):

• innoextract Source Code (mirror) innoextract-1.4.tar.gz 148 KiB
  MD5: 601c7337184620df5ad38e4f389b1c6f signature
• innoextract Windows Binaries (mirror) innoextract-1.4-windows-r1.zip 1.1 MiB
  MD5: 011a91f54b526bb1a51bdc4c71aca891 signature

The files have been signed with this OpenPGP key (D7E1DEC9).

Older versions are available on SourceForge and here.

Mac OS X

There are no pre-built innoextract binaries for OS X.
You can build it yourself by downloading the source code and then following these instructions.

Linux and FreeBSD Packages

Here is a list of innoextract packages for various Linux distributions: (installation instructions)

Distribution	Repository	Package	Version	Type
ALT Linux	Sisyphus repository	innoextract	1.4	distro
Arch Linux	Arch User Repository	innoextract	1.4	user	Instructions
Chakra	Chakra Community Repo	innoextract	1.4	user	Instructions
Debian stable (6, 7)	home:dscharrer on OBS	innoextract	1.4	own	Instructions
Debian 7 (wheezy)	main	innoextract	1.2+git20120504	distro	Instructions
Debian testing (jessie)	main	innoextract	1.3	distro	Instructions
Debian unstable (sid)	main	innoextract	1.3	distro	Instructions
Fedora	home:dscharrer on OBS	innoextract	1.4	own	Instructions
Gentoo Linux	portage tree	innoextract	1.4	distro	Instructions
openSUSE	home:dscharrer on OBS	innoextract	1.4	own	Instructions
openSUSE	Archiving on OBS	innoextract	1.4	distro	Instructions
Slackware	~alien	innoextract	1.3	user
Slackware 14.0	slackbuilds.org	innoextract	1.4	user
Ubuntu	ppa:arx/release	innoextract	1.4	own	Instructions
Ubuntu 12.10 (quantal)	universe	innoextract	1.2+git20120504	distro	Instructions
Ubuntu 13.04 (raring)	universe	innoextract	1.3	distro	Instructions
Ubuntu 13.10 (saucy)	universe	innoextract	1.3	distro	Instructions

If your favorite distribution is not listed here, first check the appropriate repositories - maybe someone already created a package for your distribution.
If you create your own packages or find one that isn't listed here, please let me know so that I can add them.

For distributions where no package is available, you can either build from source code or use the following pre-build binaries. While these should work on any modern x86 or amd64 Linux distribution, using a distribution-specific package, if available, is recommended for better integration with the rest of the system.

• innoextract Linux Binaries (mirror) innoextract-1.4-linux.tar.xz 893 KiB
  MD5: 9010fbba0b1d279bed6f78056ac8d456 signature
• innoextract FreeBSD Binaries (mirror) innoextract-1.4-freebsd.tar.xz 1.2 MiB
  MD5: a4beddc4bf38be6a9583987595afaf1d signature

The above Linux package also includes an experimental ARMELv6j+harfloat+vfp binary - this should for example run on the Raspberry Pi.
The FreeBSD binaries are compiled for FreeBSD 9.1, but will likely also work on older versions.

Usage

To extract a setup file to the current directory run:

$ innoextract <file>

A list of available options can be retrieved using

$ innoextract --help

Documentation is also available as a man page:

$ man 1 innoextract

Compatibility

New Inno Setup versions often change the data format, so innoextract cannot provide good future compatibility. The following table lists the compatible versions:

Inno Setup 5.5.0 to 5.5.4	innoextract 1.3+
Inno Setup 1.2.10 to 5.4.3	innoextract 1.0+

GOG.com installers with a 2.x.x version number on the download page or in the filename use Inno Setup 5.5.0 and cannot be extracted by innoextract 1.2 and older. Older installers use Inno Setup 5.2.3 and usually have no version number in the filename.

Limitations

• innoextract currently only supports extracting all the data. There is no support for extracting individual files or components and limited support for extracting language-specific files.
• Included scripts and checks are not executed.
• The mapping from Inno Setup variables like the application directory to subdirectories is hard-coded.
• innoextract does not check if an installer includes multiple files with the same name and will continually overwrite the destination file when extracting.
• Names for data slice/disk files in multi-file installers must follow the standard naming scheme.
• Encrypted installers are not supported.

Also see the list of planned/requested enhancements on the issue tracker.

A perhaps more complete, but Windows-only, tool to extract Inno Setup files is innounp.

Development Information

• source code repository on GitHub
• ohloh source code statistics
• build logs
• Travis CI page
• developer documentation
• launchpad project

Related Projects

• Inno Setup
• innounp - alternative to innoextract for Windows
• uninno - portable unpacking tool for Inno Setup installers, written in Perl
• cabextract - unpacker for .cab files used in Microsoft installers
• unshield - unpacker for .cab files used in InstallShield installers