Hi, new to the forums. I'm trying to find a software solution (open or closed source) that would allow specific folders to be encrypted (specified by the admin) and would do this behind the scenes (needs no user interaction). I would rather the users not even know the files are being encrypted. Also, I would like any files being written to removable media to be auto-encrypted. If you could suggest some software, I would greatly appreciate it. Thanks.
Do not know if this fits all your criteria but I do know it is spoken of highly here and else where. http://www.truecrypt.org/downloads.php
try steganos security suite. These softwares are kind of the same in that they create a directory that is set aside to encrypt files that you put in them.
You can also use Essential Taceo which can be used to safeguard your email, as well as be used as a desktop application to encrypt docs, files, folders, etc....
It's not open-source. When it comes to encryption software, it is essential you use open-source products. Truecrypt, AxCrypt are your best bets.