DigiSecret 

An application for strong file encryption, compression, and file sharing (peer to peer). It utilizes time-proven encryption algorithms for creating encrypted archives and self-extracting EXE files, as well as for sharing files over the Internet.
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Chilkat XML Messaging 

Makes adding peer-to-peer XML messaging to your distributed applications easy. Integrates with Chilkat SSL, Chilkat Real-Time Compression, and Chilkat Crypt for automatic compression and security.
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PlexCrypt Compression-Encryption 

PlexCrypt allows set of files or folders to compress and encrypts and decrypts set of files or set of folders based on PKI and Passwords using AES, Blowfish, CAST, DES, ElGamal, IDEA, IES, RC4, RC6, RSA, Serpent, etc.
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