I used to run a portable version of cygwin from my usb drive -- and I confirm that it works. I never tried to use it on a system that already had cygwin installed. I used these instructions although the look like they haven't been updated since Feb 2005:
http://www.dam.brown.edu/people/sezer/software/cygwin/ -- Kevin Hilton -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/