Necromancer's Dos Navigator is a freeware clone of Norton Commander. That's not actually a bad thing, as Norton Commander is still quite popular when it comes to file managers. Necromancer's DOS Navigator - Welcome to Necromancer…
Total Commander is a file manager for Windows, a program like Windows Explorer to copy, move or delete files. However, Total Commander can do much more than Explorer, e.g. pack and unpack files, access ftp servers, compare files by content, etc…