Request from a new reader.

I am new to this group and apologize if my request is covered in a FAQ. Would someone kindly point me to an FTP site or the location of a binary application that can be used to encrypt/decrypt text in an MS-DOS environment? I understand that PGP is UNIX-based, unless there is a DOS version of which I am unaware, but that's why I'm reading this group. Thank you in advance for your help. ==a.j.==