FileCrypt - Encrypt & Compress Files 2.0
ByteShift lets you easily encrypt and compress confidential files for secure storage or transfer over insecure networks, such as via email attachments or instant messenger. ByteShift removes the need to use multiple programs to encrypt, compress and email your files by combining all three into an easy to use menu which appears when you right-click on any file. ByteShift works right out-of-the-box. Free 10-day Trial download.

CryptoForge 3.2.5
This is encryption software for high-level security. It enables you to encrypt, decrypt, and wipe -with the built-in file shredder- files of any type, as well as entire folders and drives, from within Windows Explorer with right-click ease. An included secure text editor allows you to create, encrypt, and decrypt documents in a way that can be sent by any email, messenger, or chat program.

Puffer 4.03
Puffer is a general purpose 256-bit AES encryption utility for protecting your most sensitive data. Use Puffer to securely exchange email with other Puffer users via the 2048-bit Diffie-Hellman key exchange function. Compress and encrypt your data files into zip-style PUF archives. Use steganography to hide data among the pixels of image files. Distribute self-decrypting archives to non-Puffer users. Permanently erase data with wipe functions.

Top Secret Crypto Gold 4.10.000
Top Secret Crypto Gold includes Top Secret Chat and Top Secret Journal, with file and e-mail encryption. RSA key sizes 480 to 16,384 bits. Insert 180 smileys in e-mail, journal entries, and chat sessions. Free for personal private use. New! Now easy to use with any e-mail program including Yahoo! Mail, MSN Hotmail, Gmail, IncrediMail, or FoxMail. Five new spell checking dictionaries: Danish, German, French, Italian, and Spanish.