A decade ago, Symantec created the Norton Commander 2.0 for the 32-bits Windows system. I bought it back then and amazingly, it still works great on my Vista-64 bits system with Quadcore processor.
Symantec stopped any further development of NC and the above Wiki pagina lists plenty of alternatives. These all work on Linux, OS-X or 32-bits versions of Windows. Which is fine, but I don't consider them valid replacements. I want a 64-bits version which works very similar to NC, especially when viewing, copying or moving files. Total Commander is close, but not 64-bits.
Btw, it doesn't need to be free. Shareware or plain commercial software is fine too.