This tool helps you manage your PATH on Windows.
In a fit of horrible irony, on Windows you'll both have the most need to edit your PATH (since all applications insist on creating their own bin directories instead of installing to a global bin directory like on Unices), and you're also equipped with the absolute worst tools to deal with this. The default environment editor dialog where you get to see 30 characters at once if you're lucky? Yuck.
Windows Path Editor (a horribly creative name, I know) gives you a better overview and easier ways to manipulate your path settings.
bindirectory and automatically add them to your path.