What are some alternatives?
When comparing Files and Double Commander, you can also consider the following products
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
FreeCommander - FreeCommander is an easy-to-use alternative to the standard windows file manager. The program helps you with daily work in Windows. Here you can find all the necessary functions to manage your data stock.
Midnight Commander - GNU Midnight Commander is a visual file manager, licensed under GNU General Public License and...
iFile - If you need a new file manager for your device, iFile might be the answer you seek.
Krusader - Krusader is an advanced twin panel (commander style) file manager for KDE and other desktops in the *nix world, similar to Midnight or Total Commander.Get your copy of the Krusader .
Dolphin File Manager - Dolphin is a file manager for KDE focusing on usability.