PrimaSoft Encryption - Service Edition
Service Process: You can run scheduled auto-recurring encryption and decryption sessions as a service process. Encryption Scheduler: PrimaSoft Encryption utility comes with flexible scheduler. You can schedule auto recurring encryption sessions for any future date and time. ... Encryption algorithms: AES (US Advanced Encryption Standard) secret-key encryption algorithm known as Rijndael. ... Encryption compression and decompression: You can use the most popular ZIP archive file format within the Strong File Encryption / Decryption utility.
http://www.primasoft.com/demo/encsched.exe - 1Mb - Download - Screenshot

Strong File Encryption Decryption
PrimaSoft Strong File Encryption and Decryption utility is a Windows software that allows you easily and quickly to encrypt and decrypt selected files or folders on your computer using the latest industry standard strong encryption algorithms: AES (US Advanced Encryption Standard, secret-key... Strong File Encryption Decryption software supports Compression and Decompression: You can use the most popular ZIP archive file format within the Strong File Encryption / Decryption utility. ... Encryption algorithms are very fast.
http://www.primasoft.com/demo/encdec.exe - 1Mb - Download - Screenshot

RSP Encrypt .Net
.Net library to encrypt files with a very fast implementation of AES 256 bits and standard RC4 , the AES ( Advanced Encryption Standard ) is adopted by NIST as an encryption standard to be used...
http://rspsoftware.bighost.com.br/rnens100.zip - 57Kb - Download - Screenshot

Power Crypt
Power Crypt is an industrial strength file encryption program. It uses the Advanced Encryption Standard (AES) cipher algorithm, which is the most advanced and powerful encryption method used today. It's endorsed by the U. S. government's Federal Information Processing Standard (FIPS) It offers... Your files are encrypted with ease using a password as the encryption key. ... Send encrypted files to others with Power Crypt, decrypting is as easy as double clicking and entering the correct password.
http://www.globalwebmonitor.com/software/PowerCryptSetup.exe - 496Kb - Download - Screenshot

1Crypt
A quick and professional way to add strong encryption to your application. 1Crypt is a function library (DLL) which allows you to easily and securely encrypt files, strings, and buffers using 256-bit Advanced Encryption Standard (Rijndael) encryption. ... Using strong encryption in your application doesn't have to be complicated.
http://www.atma-software.com/1crypt/1CryptSetup.exe - 625Kb - Download - Screenshot

#1 Smart Encryptor - Encryption Manager
SmartEncryptor uses the most powerfull encryption algorythms existing. AES - the US Government standard symmetric encryption algorythm and Blowfish. Encrypt files and folders Send files over the Internet securely Create self-decrypting executables Works on all Windows systems.
http://www.smartencryptor.com/downloads/smartencryptorsetup.exe - 364Kb - Download - Screenshot

R-Guard
To extend data protection beyond the limited scope of standard Microsoft Windows security services R-Guard allows users to set access rights not only for users but for applications and system processes as well. R-Guard Host based Intrusion Detection System shields users? ... For robust and rapid encryption R-Guard uses the industry standard AES encryption algorithm with the 256-bit key and transparent True-On-The-Fly-Encryption technology. ... R-Guard features also include real time Files Monitoring, Files Operations Audit and Encryption.
http://www.r-tt.com/downloads/rgr_en_2x.exe - 3Mb - Download - Screenshot

Advanced Encryption Plug-In Pro for Windows Explorer
AEPE lets you encrypt files using 17 encryption algorithms and also shred/make encrypted . exe files and work with . ZIP files from context menu of Windows Explorer! Encrypting files with using strong encryption algorithms: Advanced Encryption Standard (Rijndael), Blowfish, DES, CAST, RC2,... All algorithms are industrial encryption standards. ... Using the power of standard Windows to work with your important files. ... And do not worry - you will be always able to restore original files with using your password.
http://www.secureaction.com/ae_plugin_pro/download/ae_plugin_pro.exe - 879Kb - Download - Screenshot

SafeIT File Encryption
SafeIT File Encryption is a user-friendly program that allows you to prevent unauthorized access to restricted documents. Encrypt sensitive documents and other private digital information you have on your computer. The encrypted files are are only accessible by entering the correct password. ... The encryption technology used supports several encryption algorithms, including the new AES-standard Rijndael with key length of 256 bits. ... If you prefer, you can also use Blowfish with a key length of 480 bits.
http://www.safeit.com/downloads/SafeITFileEncryption.exe - 8Mb - Download - Screenshot

SafeIT Secure Disk
SafeIT Secure Disk is a user-friendly program that allows you to prevent unauthorized access to restricted documents. The program makes a part of your current hard disk a secure disk. All private and confidential information stored on this disk will be protected using strong encryption. ... The encryption technology used supports several encryption algorithms, including the new AES-standard Rijndael with key length of 256 bits. ... Features includes: The latest encryption standards (AES and Blowfish).
http://www.safeit.com/downloads/SafeITSecureDisk.exe - 8Mb - Download - Screenshot