The FTPUSE command maps a remote share (FTP server) as a local drive, so you can use the FTP server of your choice as a local hard drive. Disks mapped using FTPUSE can be accessed by any application (e.g. Windows Explorer, Total Commander, MS-DOS command shell). FTP USE can complement the NET USE command, which can be used to map network resources but does not support FTP.
You don't need anymore a standard FTP client. Now you can use your favorite file manager to manage your FTP Server. Copy files to and from FTP server using copy command, robocopy or just Windows Explorer.