Encripting and decripting

Hello,

I just downloaded the four files necessary to run Jonah: Jonahbld.zip, Jonah.zip, Jonahgui.zip and cylink.zip.  I am using Win 95 and would like to know:

1) which files are necessary to encrypt my e-mail
2) how do I set it up on my system
3) the exact steps on encrypting and decripting
4) do the files I need for encrypting write themselves onto my system registry, if so, how can I avoid this

Thank you for providing me with the information necessary to use Jonah.