NSIS (Nullsoft Scriptable Install System) - небольшая, но мощная, эффективная и абсолютно бесплатная программа для создания инсталляционных пакетов.

Основные особенности: встроенный скриптовый язык программирования, маленький размер инсталлятора на выходе, возможность создания веб-инсталляторов, совместимость со всеми версиями Windows.



Features:
• Generates self-contained executable installers
• Support for ZLib, BZip2 and LZMA data compression (files can be compressed individually or together)
• Uninstall support (installer can generate an uninstaller)
• Customizable user interface (dialogs, fonts, backgrounds, icons, text, checkmarks, images etc.)
• Classic and Modern wizard interface
• Fully multilingual, support for multiple languages (including RTL langauges) in one installer. More than 40 translations are already available, but you can also create your own.
• Page system: You can add standard wizard pages or custom pages
• User selection of installation components, tree for component selection
• Multiple install configurations (usually Minimal, Typical, Full), and custom configuration
• Installer self-verification using a CRC32 checksum
• Small overhead over compressed data size (34 KB with default options)
• Ability to display a license agreement in text or RTF format
• Ability to detect destination directory from the registry
• Easy to use plug-in system (lots of plug-ins for creation of custom dialogs, internet connections, HTTP downloading, file patching, Win32 API calls, etc. are included)
• Installers can be as large as 2GB
• Optional silent mode for automated installations
• A preprocessor with support for defined symbols, macros, conditional compilation, standard predefines
• A lovely coding experience with elements of PHP and assembly (includes user variables, a stack, real flow control, etc.)
• Installers have their own VMs that let you write code that can support:
o File extraction (with configurable overwrite parameters)
o File/directory copying, renaming, deletion, searching
o Plug-in DLL calling
o DLL/ActiveX control registration/unregistration
o Executable execution (shell execute and wait options)
o Shortcut creation
o Registry key reading/setting/enumerating/deleting
o INI file reading/writing
o Generic text file reading/writing
o Powerful string and integer manipulation
o Window finding based on class name or title
o User interface manipulation (font/text setting)
o Window message sending
o User interaction with message boxes or custom pages
o Branching, comparisons, etc.
o Error checking
o Reboot support, including delete or rename on reboot
o Installer behavior commands (such as show/hide/wait/etc.)
o User functions in script
o Callback functions for user actions



Release Notes
• This release includes a beta of Modern UI 2. Please report any issues and suggestions.
• The format of Modern UI language files has been modified to better support external strings. Private language files should be converted (and submitted as a patch in the spirit of open source).

Changes:

Major Changes
- Fixed a bug introduced in version 2.29 that caused invalid $SMPROGRAMS value on Windows 98 (bug #1766268)
- Modern UI 2 beta: Simpler code, easier to extend and makes use of nsDialogs

Minor Changes
- Added InstallOptions.nsh with relevant usage macros, based on the old Modern UI macros
- Added LangFile.nsh allowing creation of langauge files that can be included with a single command with defaults for missing strings (when LANGFILE_DEFAULT is set)
- Added LB_ERR and CB_ERR to WinMessages.nsh (bug #1771644)
- Fixed CreateDirectory logging (patch #1768584)
- Fixed escaping of quotes with $\ in macros (bug #1713708)
- Minor documentation improvements
- Modern UI 1.80: New language files structure based on LangFile.nsh
- Modern UI 1.80: MUI_LANGDLL_DISPLAY now reads previous settings on silent installations as well
- Modern UI 1.80: Added MUI_CUSTOMFUNCTION_MOUSEOVERSECTION (patch #1762003)

Utilities and Plug-ins
- Various nsDialogs improvements including RTL support, more macros in nsDialogs.nsh and initial documentation

Translations
- Catalan returns
- Danish corrections
- Slovak corrections (patch #1762627)

Build System
- More HPUX fixes (bug #1755148, bug #1753063, bug #1758873, patch #1758863)
- Ignore known failing tests by default on POSIX/quote]