C:\>ver

Microsoft Windows [Version 6.1.7601]

C:\>tree /f /a foo
Folder PATH listing for volume System
Volume serial number is 00000002 24BF:0ACC
C:\FOO
|   1.txt
|
+---a
|       2.txt
|       3.txt
|
\---b
        4.txt


C:\>tree /f /a bar
Folder PATH listing for volume System
Volume serial number is 00000002 24BF:0ACC
C:\BAR
Invalid path - \BAR
No subfolders exist


C:\>robocopy foo bar

-------------------------------------------------------------------------------
   ROBOCOPY     ::     Robust File Copy for Windows
-------------------------------------------------------------------------------

  Started : Thu Sep 20 23:21:27 2012

   Source : C:\foo\
     Dest : C:\bar\

    Files : *.*

  Options : *.* /COPY:DAT /R:1000000 /W:30

------------------------------------------------------------------------------

          New Dir          1    C:\foo\
100%        New File                   0        1.txt

------------------------------------------------------------------------------

               Total    Copied   Skipped  Mismatch    FAILED    Extras
    Dirs :         1         1         0         0         0         0
   Files :         1         1         0         0         0         0
   Bytes :         0         0         0         0         0         0
   Times :   0:00:00   0:00:00                       0:00:00   0:00:00

   Ended : Thu Sep 20 23:21:28 2012

C:\>tree /f /a bar
Folder PATH listing for volume System
Volume serial number is 00000002 24BF:0ACC
C:\BAR
    1.txt

No subfolders exist