Total Commander (former Wincmd) is a file manager for Windows similar to the Windows Explorer. But Total Commander uses a different approach: it has two fixed windows side by side like a well-known file manager for DOS.
FEATURES:

    Two file windows side by side
    Multiple language and Unicode support
    Enhanced search function
    Compare files (now with editor) / synchronize directories
    Quick View panel with bitmap display
    ZIP, ARJ, LZH, RAR, UC2, TAR, GZ, CAB, ACE archive handling + plugins
    Built-in FTP client with FXP (server to server) and HTTP proxy support
    Parallel port link, multi-rename tool
    Tabbed interface, regular expressions, history+favorites buttons
    Thumbnails view, custom columns, enhanced search
    Compare editor, cursor in lister, separate trees, logging, enhanced overwrite dialog etc.
    Unicode names almost everywhere, long names (>259 characters), password manager for ftp and plugins, synchronize empty dirs, 64 bit context menu, quick file filter (Ctrl+S)
    New: USB port connection via special direct transfer cable, partial branch view (Ctrl+Shift+B), and many improvements to ftp, synchronizing and other functions
    And many more!

Homepage:http://www.ghisler.com