This is the 2005 version of Quincy. When you run it, you will see the license which states that it is free.
Click on the link and either save or run quincy.exe. If you choose to save it, you can run it later or copy it to another machine. Run the program. Accept the default choices and allow it to install. When done, you should have a short cut on your desktop, click it to run Quincy with MinGw.