I managed to get windows emacs to work with cygwin rcs. Apart from rcs.exe, the other rcs commands are shell scripts that invoke rcs.exe.
Create a modified version of vc-rcs.el replacing the various vc-do-command's with alternate ones that use rcs.exe directly, For example: (apply 'vc-do-command "*vc*" 0 "ci" file becomes (apply 'vc-do-command "*vc*" 0 "rcs" file "ci" Modify your ,emacs to load the alternate vc-rcs.el for example (load-file "c:/Users/ThisIsMe/AppData/vc-rcs.el") Maybe a similar approach will work for you. David -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple