Email CHAOS 

It is compact, reliable and simple program for sending protected messages to friends, colleagues and bankers.
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wodCrypt 

wodCrypt is a lightweight component that provides strong encryption for your applications. It provides supports for most common crypto algorithms, such as:AES, DES, TripleDES, Blowfish, Cast, RC2, RC, RC5, etc...
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StrongDisk Pro 

StrongDisk Pro is the most proven and reliable on-the-fly encryption software exists on the market. It makes a plain hard disk into a data strongbox that can be accessed by its owner only.
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Bind to EXE library 

Bind to EXE is an easy-to-use delphi library that enables your applications to bind/extract a collection of files to/from an executable file at RUNTIME. The binded files can be compressed or encrypted optionally.
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Chilkat Zip Compression C++ Library 

An affordable, advanced, feature-rich Zip Compression Visual C++ Library that can satisfy your application's file and data compression needs. Includes file and in-memory Zip and Unzip, AES encryption, Zip password-protection, self-extract
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Chilkat Zip ActiveX - Affordable Zip ActiveX 

An affordable, advanced, feature-rich Zip ActiveX compression component that can satisfy your application's file and data compression needs. Includes file and in-memory Zip and Unzip, AES encryption, Zip password-protection, self-extract, more...
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