1)   QuickCrypt Library 2.50
Fast, highly optimized implementation of symmetric (private-key) encryption algorithms: DES, Triple DES (3DES), DESX, BLOWFISH, RIJNDAEL (AES-Advanced Encryption Standard),GOST. Allows to encrypt/decrypt files, memory blocks, strings, streaming data.

 2)   Abacre File Encryptor 1.0
Encrypt any files or folders using 39 advanced encryption algorithms. Other features: Secure Password Generator; Text Pad to encrypt any text; Wipe Files command to permanently remove files your computer; command line parameters; Shell integration.

 3)   LetEncrypt 1.0.0.0
Encrypt your text files with unlimited high levels of encryption algorithms. - LetEncrypt shows you the level of encryption through a security meter. - Encrypt your text file by using unlimited ways. - Import/Export your encryption settings.