For the 3DS, microSD Management. You'll be asked to make these. Here's my example. User Name: User Password: 1111 Name: 3DS-6969 In muCommander on the right panel, I type this in the address bar. smb://3DS-6969/microSD/ There is an Authentication window. Choose: Connect as: User Login: User Password: 1111 Both computer and 3DS must be connected to the same Internet.