xplorer² is a desktop file manager combining the simplicity of windows explorer with the speed and efficiency of traditional dual pane orthodox file managers, helping you be productive with your documents, pictures, music, source code and other files.
FEATURES:

    Full shell namespace browser
    Dual panes and folder tabs
    Preview documents, images, music etc.
    Fast desktop search using all file attributes
    Folder sizes and disk space visualization
    Synchronize folder contents
    Search for duplicate files to free space
    Advanced copy, delete and rename operations
    Filename color coding and tagging
    Execute custom commands (even DOS)
    Macros to automate complex file management
    Fully customizable
    Modern ribbon UI or traditional menu bar
    Everyday efficiency and control
    Manage large folders with ease
    Lightweight system resource use
    Native 32/64 bit and Unicode versions

Homepage: http://zabkat.com/