muCommander is a file manager open source Java-based, can run on any version of Windows with microsoft Java installed.
The purpose of this program is always the same number of freeCommander, etc.. And that is easily manage thousands of files and folders: for example you can move, copy, rename, etc.. It can also open various types of files simply by double-clicking, and do many other small operations on files with ease.
How muCommander program is very light, the only limit is your microsoft Java: If you already installed on your system is one thing, and then you get a good file manager, but if Java must be installed from scratch do not know if it is punishment.