The problem was the Windows 10 Insider build I was using at the time: Version 6.3.16193 It seems to work again in Build 16226, both in JPSoft Take Command as well as Windows 10 "cmd". -- Jim Reisert AD1C, <jjreisert@alum.mit.edu>, http://www.ad1c.us -- 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