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)   CryptoText 3.0.0.0
The CryptoText encryption library contains COM and .NET components for cross-platform Microsoft Windows text and file encryption on Pocket PC and Desktop, including components for components for dotNet, .NET CF, COM / ActiveX, PocketPC.