Rapid environment editor - Rapid Environment Editor - freeware Windows environment variables editor
Pathman - A Windows platform tool that edit PATH enviroment variable(both system wide and user wide)
Path Editor (Open Source) - Edit PATH environment on Windows conveniently.
eveditor - Your trusty environment variables editor
Windows Path Editor - Windows Path Editor gives you a better overview and easier ways to manipulate your PATH environment settings.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).