ASPshield is an ISAPI filter, protecting your code from being viewed or stolen. It protects both ASP and ASP.NET based scripts and makes client-side HTML difficult to read. ASPshield allows you to specify if your code expires or what domains it can run on.
Crypt4Free
Crypt4Free (freeware) is files encryption software with ability to encrypt files and text messages. Support for ZIP files and ability to secure delete sensitive files. Skinnable user friendly interface.
PowerKey
PowerKey is an advanced encryption toolkit with many unique features which you won't come across in other products of such a kind available online. It allows you to perform block encryption of files and folders, wipe and other.
tripode
Tripode is a secure, simple, easy to use tool that allows the user to order and clasify images saving them in compressed and/or encrypted files, besides, it can visualize and edit the saved images.
Squirrel
Allows you to hide files on your computer using a single password. Can take multiple files from different locations and store them using cryptic names in specified directory while giving them system and hidden attributes. Convenient and secure.
CryptoExpert 2006 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.