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.
makeself.sh is a small shell script that generates a self-extractable tar.gz archive from a directory. The resulting file appears as a shell script (many of those have a .run suffix), and can be launched as is.This app doesn't have any features at the moment.
Modern, easy to use crossplatform installation tool similar to InstallShield multiplatform and InstallAnywhere. It works across Linux, Windows and Mac OS X. Free Licenses for open source projects.