A small and user-friendly tool that protects various types of files, documents included, by locking them and adding a .doclock extension to them.

The tool offers several encryption algorithms to choose from, as well as 4 cipher modes.

docLock is fast - during installation and locking files. Read more about it here: http://sensorstechforum.com/doclock-v-2-1-1-1-software-review/

Have you used it, and do you like it? Do you know any other similar tools to offer?