Rapid environment editor - Rapid Environment Editor - freeware Windows environment variables editor
Application Paths Editor - Application Paths Editor is a portable Windows program to Add, Edit and delete Application Paths in...
eveditor - Your trusty environment variables editor
Filebar - Quickly work with file paths in a handy bar.
Path Editor (Open Source) - Edit PATH environment on Windows conveniently.
Pathman - A Windows platform tool that edit PATH enviroment variable(both system wide and user wide)