2xExplorer is a dual pane, Windows Commander style alternate file manager. It's completely freeware, replicates nearly every function of windows explorer, including a tree pane and context menus. It's somewhat similar to Servant Salamander, but it's a lot lighter, faster, and it has some unique features, like folder content size calculating, floating panes, preview pane, layout memory, and internal editor and CLI. I prefer Salamander though, because of it's internal zip/rar/arj/pak, and because I can tab between panes and create a custom context menu.

Oh, and a recent function added to 2x is that it can generate complex batch files automatically.

http://personal-pages.ps.ic.ac.uk/~umeca74/r7.zip - 326k