From the developer: "FileGuardian is a safe and easy to use file protection utility. Simply drag and drop files to quickly protect your sensitive files from unwanted viewing. FileGuardian was designed for the individual that wants secure his or her files and forget it about. FileGuardian utilizes a 128 bit key for the Advanced Encryption Standard (Rijndael encryption algorithm). FileGuardian features include:

"One Key Lock/Unlock: One Key is used to Lock and Unlock all your files. This reduces the need to remember multiple keys to multiple files. Seamless Windows integration: FileGuardian includes tight integration with Windows Explorer. Drag and drop from Explorer, or encrypt and decrypt without leaving Explorer. TaskBar Tray Option: FileGuardian can be optionally configured to place its program icon in the Taskbar Icon Notification Tray. This option provides a simple means of keeping the taskbar button region clear for other running programs."