From the blog:
Download:SmartXploreHow often do you use Windows Explorer to browse your files? What if you can download add-ons for Windows Explorer in order to easily share files, manage them, tag them and …
SmartXplore will let you do this and more: think you can have lots of new options to manipulate your files just one click from you.
New add-ons:http://www.smartxplore.org
SmartXplore is free and open source.
Note: The first beta version has many features, but probably some bugs. Please send feedback.