Total Commander

Total Commander is a file manager replacement that offers multiple language support, search, file comparison, directory synchronization, quick view panel with bitmap display, ZIP, ARJ, LZH, RAR, UC2, TAR, GZ, CAB, ACE archive handling plus plugins, built-in FTP client with FXP, HTTP proxy support, and more
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)
USB port connection via special direct transfer cable, partial branch view (Ctrl+Shift+B), and many imporvements to ftp, synchronizing and other functions And many more!