CryptoExpert Lite is a free encryption software. It uses an on-the-fly encryption system to encrypt and decrypt data. Data is stored in the encrypted form, but when it is requested by any application, it gets decrypted on-the-fly. Conversely, unencrypted data to be stored is encrypted instantaneously and then stored. The CryptoExpert system mounts a volume file to create a "virtual drive" that appears to applications and users like any other physical drive.

Any data that the user attempts to write to this drive is intercepted by CryptoExpert, encrypted, and written to the volume file. Attempts to read from this volume are also intercepted, and the relevant data is read by CryptoExpert from the volume file, decrypted, and presented to the application trying to read the data.

Dismounting the CryptoExpert "virtual drive" ensures that data cannot be read from or written to it. All data is stored encrypted within the "container". As far as windows is concerned, there is a 'new' disk that has suddenly appeared. When the program exists or the volume is unmounted, the file system stays encrypted and there is absolutely no way anyone can recover/get the data without the pass phrase.

The latest version includes special tool to erase all personal traces on computer.

Features :

Your choice of one of the highly acclaimed encryption algorithms, BLOWFISH, CAST, or 3DES, or the industry-standard AES-256 for ultimate data security
Transparent access to files and folders. Read and write encrypted files on the fly – no need to wait while your data is encrypted or decrypted.
Disk Firewall allows restricting access to encrypted volumes to white-list applications only.
Two modes of operation: Password and Decryption Key. In Password mode, simply typing a text password is enough to unlock protected data. In Decryption Key mode, a memory stick, USB flash drive or other removable media unlocks your files and folders automatically once inserted.
Use USB or removable drive, memory card or even an iPod to keep your encryption keys.
Assign any available drive letters to encrypted volumes.
Create unlimited number of encrypted volumes.
Encrypted containers up to 750 GB are supported.
No one can access protected data without a password.
Protected volumes appear as hard disks to all Windows applications.
Mount encrypted containers located on remote computers over LAN.
Share encrypted hard drives between network users.
Industry-standard encryption algorithms. Bullet-proof implementation. No backdoors or security weaknesses of any type. Even you won’t be able to access your data after forgetting a password!
Compatible with 32-bit and 64-bit editions of Windows Vista and Windows XP SP2. Supports Windows 2000.

Platform: Windows NT, Windows 2000, Windows XP, Windows 2003, Windows Vista

System Requirements: Pentium 233 or better, 16 mb RAM, 3 MB of free HDD space