From CadabraSoftware: P-Encrypt Secure Drive (PESD) is a program that can create virtual encrypted disk drives. These encrypted images can be connected to a windows drive letter. PESD is available for Microsoft Windows 2000, XP, and Vista. PESD uses the most trusted and acceptable encryption algorithms available today, which include AES, Blowfish, Twofish, TripleDES, and Camellia. With PESD you can access your encrypted data directly from any program. PESD includes a powerful feature set: variable disk images sizes, drive firewall, stealth image mode, auto-run/auto-close program, plus more. With variable images sizes, you do not need to allocate an amount of your disk space to create an image. The image grows and shrinks when files are added or deleted. The drive firewall allows you to create an application "white list" that will be used to allow or deny programs from accessing your data. Stealth image mode allows you to create an image and disguise it as a different type of file, such as a picture or an audio file. Auto-run/Auto-close allows you to run a list of applications whenever the disk is connected or disconnected.
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