Freeware, 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.

Hide My Files
Hide My Files is an easy to use file security utility that protects files and folders from unauthorized use.

CryptoExpert 2004 Professional
CryptoExpert 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 file.

Cryptainer LE Encryption Software
Encrypt any file or folder on any Windows PC. Any Media, any type of data. Cryptainer LE Free Encryption Software. Password protect any file or folder with strong Encryption. Send secure e-mail. Protects data on USB Drives, CDs and HDDs. Freeware.

Advanced Encryption Plug-In for Windows Explorer
AEPE lets you encrypt/decrypt/shred/make sfx files with using a power of standard Microsoft Windows Explorer's context menu! AEPE integrates into context menu and allows you to work with your important files with single mouse click.

MadLogic Encryptor
MadLogic Encryptor, encrypt files for privacy; encrypted files are self-extracting; download the demo for free.