Opensource Applications

InstallJammer is a multiplatform GUI installer designed to be completely cross-platform and function on Windows and most all versions of UNIX with support for MacOS X coming soon.

Nullsoft Scriptable Install System (NSIS) is a script-driven Windows installation system with minimal overhead backed by Nullsoft, the creators of Winamp. NSIS has risen to popularity as a widely used alternative to commercial and proprietary products like InstallShield.