Crypt4Free 4.8.0
Crypt4Free (freeware) is files encryption software with ability to encrypt files and text messages. Support for ZIP files and ability to secure delete sensitive files. Skinnable user friendly interface.The latest version includes "Privacy Master" tool to erase all personal traces on computer.

Advanced Encryption Plug-In Pro for Windows Explorer 4.0.5
AEPE PRO lets you encrypt/shred/make sfx files from Windows Explorer's context menu using 17 encryption algortithms including Advanced Encryption Standard, CAST, Blowfish, Twofish, RC2 and so on. AEPE has full support for ZIP archives. Well, you don't need any special software to work with ZIP files anymore. AEPE integrates into Windows Explorer's context menu and allows you to work with your important files with single mouse click!

SPac 1.6.0.28
SPac is an easy to use, secure, and powerful application for file encryption and sharing. SPac combines both compression and encryption into the one product and utilizes a user-friendly interface to make manipulating your secure archives simple.

CryptoCrat 2005 4.61
CryptoCrat 2005 encrypts multiple files into one single solid encrypted archive using all strong encryption algorithms known today including AES!. It transforms files data into gabberish undecipherable by others. If the scrambling of the data is done properly, the original file can only be unscrambled and read by someone who knows the secret key i.e. the code used to encrypt the file. Handy interface like Windows Explorer. Secure files deletion.

Hermetic Stego 7.41
Hermetic Stego is a a steganography program which allows you to encrypt and hide a file of any size in one or more BMP image files, with or without the use of a stego/encryption key, so that the presence of the hidden file is undetectable , even by forensic software using statistical methods and if a user-specified stego key is used then the hidden file can be extracted only by someone, using this software, who knows that stego key.