APP/Encrypt
APP/Encrypt is a COM+/MTS component that allows application developers to strong encrypting and decrypting of text and files. Supports the latest industry-standard strong encryption and hashing algorithms including: Blowfish, Cast 128, Cast 256, Rijndael, Serpent, Twofish, TEA, MARS, IDEA,...
http://nonnoi.com/download/appencrypt.zip - 333Kb - Download - Screenshot

ASP/Encrypt
ASP/Encrypt is a server side COM component that allows web developers to strong encrypting and decrypting of text and files. Supports the latest industry-standard strong encryption and hashing algorithms including: Blowfish, Cast 128, Cast 256, Rijndael, Serpent, Twofish, TEA, MARS, IDEA, Haval,...
http://nonnoi.com/download/aspencrypt.zip - 323Kb - Download - Screenshot

Military Level Encryption
Military Level Encryption blowfish Cast128 gost rc2 Rijndael twofish. Encrypt disk files containing sensitive information. Encrypt sensitive text data before transmission or storage in database. Controls for encrypting, decrypting files and text also encryption of web pages and mailto email... Shedding files with DOD Department of Defense rules.
http://www.dudestar.net/MilitaryEncryptionTrial10.exe - 1Mb - Download - Screenshot

SecExFile Home
SecExFile brings one-click file protection to the desktop. It integrates with Windows Explorer to make securing your personal or corporate data easy. SecEx File can be configured to email the armoured file once encryption is completed.
http://www.bytefusion.com/download/bin/secexfilehome.exe - 2Mb - Download - Screenshot

Computer Security
Security should be a very important and concerning issue in you every day activity. No matter you are part of a company or a home user, it is very important to protect your files. Computer Security does that for you encrypting sensitive data, hiding it in innocent carriers, allowing safe... Encryption is done using one of over 20 algorithms like Twofish, Cast128, Blowfish or Shaphire II. ... A special algorithm is used for secure erase that overwrites every bit of information with a random number of layers of data.
http://www.adolix.com/download/ComputerSecuritySetup.exe - 2Mb - Download - Screenshot

Crypto Anywhere - OpenPGP Edition
Secure Email . Standalone or integrated with Outlook Express. Can decrypt and encrypt messages to friends using PGP, OpenPGP, SecExMail and many more. Crypto Anywhere allows you to make a travel floppy which can be used in internet cafe's or at work. ... Crypto Anywhere implements trusted, industry standard, strong encryption algorithms based on RSA public key encryption, the Twofish block cipher, ISAAC random number generator and OpenPGP. ... Encrypted messages can be sent to friends who don't even have Crypto Anywhere.
http://www.bytefusion.com/download/bin/cryptoasetup.exe - 3Mb - Download - Screenshot

EDCrypt
Softuarium EDCrypt is an ActiveX control performing following functions: - encrypts and decrypts text and files using symmetrical ciphers: BLOWFISH, CAST128, GOST, RC2, RIJNDAEL, TWOFISH - computes hashes (message digests) of text and files using hashing algorithms: ADLER32, CRC32, CRC32B, GOST,... The control can be distributed royalty-free in an unlimited number of commercial applications. ... EDCrypt is a stand-alone component. ... It does not require any other files to work.
http://www.softuarium.com/files/edcrypt.zip - 391Kb - Download - Screenshot

Encryption Workshop
Encryption Workshop includes file and folder encryption and decryption tool. Currently nine strong symmetrical block ciphers are implemented: BLOWFISH, GOST, RC 4, DES, Skipjack, TWOFISH, TEA and XOR. Any type of file can be encrypted/decrypted, not only ZIP files. ... While they all employ the same ideas they don't necessarily have to be binary compatible. ... Therefore, it may happen that files encrypted by Encryption Workshop will not be decrypted by other software or vice versa. ... Please be aware that many implementations of encryption algorithms exist on the market.
http://www.encryption-workshop.com/enwork3.exe - 2b - Download - Screenshot

Chilkat Encryption .NET Component
Chilkat Crypt . NET is an advanced encryption component that offers both RSA public-key encryption with digital signatures as well as symmetric encryption algorithms including AES (Rijndael), Blowfish, and Twofish. It provides the ability to easily create digital signatures for files or memory... It also provides easy access to information about digital certificates and the ability to add and delete certificates from certificate stores found in the registry, filesystem, or even directly in memory.
http://www.emailcomponent.com/ChilkatDotNet.msi - 2Mb - Download

Chilkat AES & RSA Encryption Component
Chilkat Crypt . NET is an advanced encryption component that offers both RSA public-key encryption with digital signatures as well as symmetric encryption algorithms including AES (Rijndael), Blowfish, and Twofish. It provides the ability to easily create digital signatures for files or memory... It also provides easy access to information about digital certificates and the ability to add and delete certificates from certificate stores found in the registry, filesystem, or even directly in memory.
http://www.chilkatsoft.com/ChilkatCrypt.exe - 2Mb - Download - Screenshot