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.
NSIS 3.02.1 fixes a couple of language file bugs that were introduced in 3.02.
Download:
http://nsis.sourceforge.net/Download
Release notes:
http://nsis.sourceforge.net/rn/v3.02.1