CryptoStorage for Pocket PC 1.5.1
CryptoStorage is a reliable and easy-to-use system for encrypting private data and controlling access to it. With CryptoStorage, you can create one or more cryptographic storages and store files in them. An open storage is a special folder in the root directory of your Pocket PC. You specify the name of this folder when you create the storage. All data read from or written to this folder gets transparently encrypted/decrypted on the fly.

Hide Folder HiBit 7.2.8
1)-Protect any folder or file by : Hide, Lock, Encrypt or make a folder as a recycle Bin. (2)-The protected folders or files still protected even in other computers. (3)-The protect Operation just take 1 second at any computer. (4)-You can undelete the folder or file by Locking it.(5)-Works with NTFS, FAT32, FAT16, FAT12 and FAT and all windows versions.

Secret Notes 2.1.0
Secret Notes enables you to have a secure place to keep your passwords, credit card information, and other important information. Secret Notes uses the same DES encryption used by the U.S. National Security Agency (NSA), banks, and military to encrypt your data to insure that only you have access to it.

USA Shield 2.15
USA Shield is the suite of encryption tools for personal and professional security. It allows you to protect the privacy of your sensitive files and messages by encrypting them with up to three strong cryptographic algorithms.