LevelZap is a Windows Explorer add-on that adds an item to the contextual menu on all folders allowing the user to "zap" the folder by moving all files/folders within it up one level, then deleting the folder itself.
Works on Windows XP or later, both 32-bit and 64-bit versions.
The Spoon Browser Sandbox lets you run all popular web browsers, including Internet Explorer, Firefox, Chrome, Safari, and Opera, directly from the web, with no installs.
FilerFrog makes it easier to manipulate files in windows explorer.
It integrates with windows explorer as a shell extension so it can provide you with tools to perform your every day file manipulation actions easily and efficiently.
FilerFrog was formerly a commercial product and it's now a free Open Source software.
JamDisk is a file-management system for the Amazon S3 Service.
JamDisk will save, share and organize your data thanks to an intuitive interface similar to Windows Explorer's.
Its functions and conviviality will persuade you from the start, whether you are
an amateur or a professional user.
Emerge Desktop is a replacement windows "shell" (the desktop environment normally provided by Windows Explorer) for Windows 2000 and above. In order to replace Windows Explorer as a shell, it provides a system tray (the area that collects the icons collected at the lower right corner in Explorer), called emergeTray. It will also provide access to the users programs (normally accessed with the windows "start" button) via a right-click on the desktop, via emergeCore.