Starting with the 2011年07月21日 snapshot, emacs doesn't work well with the large-address-awareness flag set (under 64-bit Win7). As soon as emacs is started, a *Warning* buffer is created with the following message: Emergency (alloc): Warning: past 95% of memory limit To reproduce, install emacs and do the following: $ peflags --bigaddr=1 /usr/bin/emacs-nox.exe $ emacs-nox.exe -Q Ken -- 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