NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution. Being a user's first experience with your product, a stable and reliable installer is an important component of succesful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software. NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.
This release (2.25) adds Memento which helps the installer remember previous installer selections, fixes a silly license page bug introduced in 2.24 and includes the usual collection of new features, bug fixes, improvements and translation updates.
Major Changes
* Added Memento.nsh for easy persistency of user selections across different runs of the installer (RFE #1677624)
* Fixed a bug introduced in 2.24 that allowed the license page to be skipped even with agreement check box or radio buttons (bug #166442
Minor Changes
* Added Vista manifest to StartMenu.nsi example to avoid backward compatibility mode that moves shortcuts (bug #1664957)
* Both dashes and slashes are supported as switch prefixes on makensis.exe (bug #1661503)
* Delete uninstaller temporary directory on reboot (patch #1660626)
* Distribute Plug-in example with the NSIS package and not only with the source code
* Fixed lossy Unicode conversion of dialog template strings (bug #1662190)
* Fixed Sections.nsh macros support for $0 as input (bug #166464
* Fixed uninstallers support for the /D= command line switch
* Improved logging of WriteReg commands
* Minor documentation updates and fixes (including patch #1662419)
New/Changed Commands
* Added bitwise operators support for !define /math (RFE #1669513)
* __PAGEEX__ contains the page type (patch #1644712)
Utilities and Plug-ins
* InstallOptions 2.46: Use installer's name for message boxes (bug #1661677)
* MakeNSISW: Use Escape button to close (RFE #1666501)
* Math: Removed mathcrt.lib
* StartMenu: Refuse empty paths (bug #1684751)
Translations
* Fixed Galician language files (bug #1663795)
Build System
* Added APPEND_LIBPATH and APPEND_CPPATH instead of the malfunctioning CPPPATH and LIBPATH
* Added ChangeLog to Source code packages (patch #168050
* Avoid some warnings on VS2005 (patch #1667950)
* Fixed lzma test segfault on POSIX (bug #1666873)
* More strict-aliasing compatibility (bug #1635841)
* NSIS Menu finally built from source
Download: NSIS 2.25 freeware
Screenshot: >> Click here 
Link: NSIS Home Page
