C:\test\junk>dir /w a b
 Volume in drive C has no label.
 Volume Serial Number is BCCA-B4CC

 Directory of C:\test\junk\a

[.]  [..]
               0 File(s)              0 bytes

 Directory of C:\test\junk\b

[.]  [..]
               0 File(s)              0 bytes
               2 Dir(s)  15,859,965,952 bytes free