WinMagic - SecureDoc File and Folder Encryption
File Folder Encryption allows users to encrypt a top level folder (or a full data partition), e.g. My Documents or (F: drive). The goal is to encrypt everything underneath (transparently), and leave it encrypted. In addition, FFE can encrypt ON TOP of the encrypted hard drive, so users can restrict access to personal files locally or on the network. All files under a single folder or data partition are automatically encrypted.