When requested to type in a path name, don't forget the trailing backslash '\' behind any folder name. For instance, if the files you want to list are in drive C, folder 'FOLDER1', the pathname you would type would be 'C:\FOLDER1\' followed by a carriage return. Another problem is when you try to exit the program. The program tells you to hit the Q key to quit. Sometimes, though, the Q key will not exit. You must then press and hold the Control key, then tap the Z key. This will then force an exit from the program.