Encrypto - Encrypto lets you encrypt files before sending them to friends or coworkers.
Jetico BCTextEncoder - Jetico BCTextEncoder is software that ensures your text-based communications are safe by allowing you to encrypt them.
EncFSMP - EncFSMP, a program to mount EncFS folders on Windows and OS X.
TheLetterEncrypter - TheLetterEncrypter is a small (14KB download) AES-based text-encryption program.
File Lock PEA - Password-encryption of files and directories. File PEA encrypts files and folders with authenticated encryption to protect confidentiality and integrity. The program uses memory-hard key derivation functions to prevent custom hardware attacks.
GNUPGK - A GnuPG Frontend GUI made in C#.