SunVox - SunVox is a small, fast and powerful modular synthesizer with pattern based sequencer (tracker).
Inno Setup - Inno Setup is a free installer for Windows programs.
FamiStudio - FamiStudio is very simple music editor for the Nintendo Entertainment System or Famicom. It is designed to be easier to use than FamiTracker, but its feature set is also much more limited.
NSIS - NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows...
MOTU Digital Performer - Get inspired, then refine your mix — all in a singular workflow.
InstallForge - A very simplistic and streamlined program for creating installation files.