windows cmd command - syntax error

i'm getting error when running this command:

for /f "delims=|" %f in ('dir /b y:\db\b') do "Y:\robocopy.exe" "y:\db\b\%f\" "y:\db\a\%f\Certificates and deliverables\" /e

"Y:\robocopy.exe" "y:\db\b\a 001\" "y:\db\a\a 001\Certificates and deliverables\" /e

-------------------------------------------------------------------------------
   ROBOCOPY     ::     Robust File Copy for Windows     ::     Version XP010
-------------------------------------------------------------------------------

  Started : Tue Mar 15 14:06:41 2011

   Source : y:\db\b\a 001" y:\db\a\a\
     Dest : y:\db\b\001\Certificates\

    Files : and
            deliverables"

  Options : /S /E /COPY:DAT /R:1000000 /W:30

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

2011/03/15 14:06:41 ERROR 123 (0x0000007B) Accessing Source Directory y:\db\b\a 001" y:\db\a\a\
The filename, directory name, or volume label syntax is incorrect.

i cannot seem to get it work, help pls.

When parsing the command line, some commands treat \" as an escaped ".

You should double your backslash.

Also see This reference regarding the MSVCRT (a dependency walker shows robocopy uses the MSVCRT).

Let me suggest:

for /f "delims=|" %f in ('dir /b y:\db\b') do "Y:\robocopy.exe" "y:\db\b\%f\\" "y:\db\a\%f\Certificates and deliverables\" /e