These downloads are for outdated versions, which are no longer maintained.
For current and newer versions, please go to the web site for Racket.
Package:   MzScheme
Version:   4.1
Platform:   Windows (95 and up) x86
Type:   Windows Installer
File:   mz-4.1-bin-i386-win32.exe
Size:   5.3Mb

Download links:     (Choose the nearest site)

Installation instructions
This is a Windows installer program. Simply run it, and an installation wizard will guide you through the installation process.
Note: If you have a previously installed version of MzScheme, uninstall it before using this installer.
(Software License)