The installer (an .exe file) is prepared using InnoSetup 5 by Jordan Russell. Shortcuts to the application and manual are installed in the Start->Programs system menu. I have tested it under Windows 98 SE, 2000, XP, Vista, and Windows 7. It does not run under earlier Windows versions.
You should get messages from your security system asking whether or not to trust the installer, and the installed application(s). Be sure to read the security information on my site.