SafeHouse provides transparent on-the-fly hard drive encryption for your PC. Using SafeHouse, you can allocate portions of your existing hard drives to be reserved for encrypted data. SafeHouse appears to Windows as another drive letter.
File Tutelary is a shareware to encrypt files and decrypt files by your own password quickly and securly.
You can encrypt any file with a password so your documents are kept safe away from prying eyes.
WinSafe is a powerful but easy to use encryption program. You can encrypt your files using strong cryptography algorithms like Blowfish, CAST, SAFER-SK128, Twofish and more.
Cryptomathic File2File comes as a small application that can encrypt and decrypt files and directory trees. Cryptomathic File2File uses 128-bit AES encryption with a user-selected password.
SecretSpace is a utility that allows you to conceal short messages invisibly within plain text documents. It does this by inserting superflous spaces in between words. This can be used to exchange secret messages.