On Tue, Dec 27, 2016 at 9:47 PM, Neil wrote: > > Any thoughts what I could use? Anyone have experience with Winzip on a > Mac and can say if it's a straightforward install and if it's an > indefinite trial (as on Windows)? Any other option? > > 7zip is pretty straightforward on Windows and Linux and does AES256 encryption. Keka seems to be the Mac OS X wrapper for it. http://www.7-zip.org/download.html http://www.kekaosx.com/en/ If you use ZIP format the standard is ZIP 2.0 encryption which isn't very strong. I'd stick with 7z or AES256 under WinZip. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .