CryptoExpert uses an on-the-fly encryption system to encrypt and decrypt data.
Your files are 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.
More : Download CryptoExpert 2004 Professional v6.19