Nullsoft - (Open Source)
NSIS is a professional tool that helps creating very easily Windows installers.
NSIS (Nullsoft Scriptable Install System), developed by the publisher of Winamp , is a professional open source system that allows creating distribution of software over the Internet in a very flexible and easy possible manner.
A safe and effective installer is a major thing for users during the first installation, so NSIS installs the software as desired.NSIS is based on scripts to handle the most complex installation tasks starting with creation of web installers, communication with Windows and other software components, installation or update of shared components etc.
Major Changes
* Fixed a bug introduced in 2.26 that made $PROGRAMFILES and $COMMONFILES
unavailable in the uninstaller
Minor Changes
* Disable the X button on InstallOptions pages when CancelEnabled is 0
* Fixed incomplete MessageBox usage line (bug #1709460)
Build System
* Added TOOLSET option to allow selection of specific build tools
(e.g. scons TOOLSET=mingw)