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.
Changes:
Major Changes
* Fixed a bug introduced in version 2.29 that caused invalid $SMPROGRAMS value on Windows 98 (bug #176626
* 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 #171370
* 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
Download: NSIS 2.30 freeware
Screenshot: >> Click here 
Link: NSIS Home Page
