Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
groupy - Groupy enables you to drag and drop application windows together to group them together under a common tabbed interface.
Dolphin File Manager - Dolphin is a file manager for KDE focusing on usability.
QTTabBar - QTTabBar is an extension for Windows Explorer that brings tabbed browsing to Microsoft's file...
Path Finder - The Finder, reinvented. Path Finder is an award-winning file browser and management application for Mac OS X.
BrightExplorer - Add a tabbed interface to Windows Explorer.