I posted this a couple of day ago but to my surprise there haven't been
any replies. So I'll have another go . . .

I use a USB flash drive to transfer date from a PC to a number of MACs.
Is there a prog that will let me encrypt files and folders when plugged
into the Windows computer then unencrypt them when plugged into the
MACs?

Livewire wrote:
=== if you have "Stuffit" on your Mac , you can get it for your Windows
machine (free) from.. http://www.stuffit.com/win/expander/index.html
... then you should be able to password protect your files - not the
best , but better than nothing.......
you might want to check out...
http://www.macwindows.com/disks2.html ... for ideas,