XEmacs and Scheme

In Windows emacs Lisp is enabled.
If not you can do so by M-x scheme-mode in the command line at the bottom and hit enter.

To enable the syntax color for scheme in the Xemacs,
type M-x font-lock-mode in the command line at the bottom and hit enter.

To get help
type C-h

where M = Meta-key, usually Alt, but it could be something else also.
where C = Meta-key usually Ctrl.