NSIS (Nullsoft Scriptable Install System) is a professional open-source tool for the development of Windows installers. It is designed to be as small and flexible as possible and is therefore highly suitable for internet distribution.
This release, NSIS 2.42, includes a new simpler and more powerful plug-in API, vastly improved and thoroughly tested version of WinVer.nsh, and disposes of two great evils - /NOUNLOAD and useful header functions usage declaration. As usual and especially for the holiday season, the usual collection of bug fixes and minor improvements is also included free of charge.
Merry Christmas and a happy Hanukkah!