AB File Encryptor as the name suggest is a utility for encrypting data. Using this tool, you can block access to your important data. You can encrypt a file, a file group or even a folder with subfolders. The application integrates with Windows Explorer, simply right click to bring up the context menu with the option to encrypt your file. AB File Encryptor is available on this site in its shareware version. It is compatible with Windows XP/NT/95/98/2000 and ME.