Variable: w32-allow-system-shell
w32-allow-system-shell is a customizable variable defined in
w32-vars.el.gz.
Value
nil
Documentation
Disable startup warning when using "system" shells.
Source Code
;; Defined in /usr/src/emacs/lisp/w32-vars.el.gz
(unless (eq system-type 'cygwin)
(defcustom w32-allow-system-shell nil
"Disable startup warning when using \"system\" shells."
:type 'boolean))