This page is about Windows support by Scheme implementations. It can be assumed that all Schemes run on Linux, and almost all on the BSDs including Mac OS X, possibly with a little adjustment. In addition, Linux-on-Windows support in Windows 10 makes all Schemes portable to Windows, though without full interchange with the operating system (basically, files and sockets only). There is also Cygwin, but for various reasons support on Cygwin does not count as support for Windows.
The following Schemes explicitly or implicitly claim to support Windows, generally via the MinGW compiler: Racket, Gauche, Gambit, Chicken, Bigloo, Sagittarius, SCM, Chez, Larceny, Ypsilon, Mosh, KSi, SigScheme, Scheme 9, S7, µScheme, SIOD, XLisp, Elk, SXM, Femtolisp, Owl Lisp
The following Schemes provide universal support because they are written entirely in a high-level language (Java unless otherwise noted): Cyclone (in Scheme), Kawa, SISC, IronScheme (in C#), JScheme, BDC, Llava