How to get a Network's WIFI Password through CMD?

I found that Wifi's Password can be retrived using the network and sharing wizard in Windows, And Technicaly theres no way to store Passwords/collection of bytes in the memory after switching/shutting down your computer, and So the Network and Sharing Wizard is also an application, and it has to store the password any way, so it saves the password in the disk, so there must be a way in which i can get the password using CMD, or if not with CMD where can i get that key, I'm trying to learn hacking my Wifi system, I use c++, with Win32 and i dont need any other libray than win32, I will implement command shell in my application, im doing this just for a knowledge about windows computer security, So is there anyone reading this question tells the way using the command prompt to get the Wirless Network/Wifi Password? Or any other way in which i can get that key in my application even through parsing a system file/searching in registry(for example) or any thing, i can even be happier if i got the WPA/PSK encrypted key if not the ascii version of the key, Thanks in Advance!