>XX = '"F:\scans\003.PDF"'
>oShell.run ('"c:\program files\Adobe\Acrobat 7.0\Reader\AcroRd32.exe"' + &XX,0,.t.)
>
>(xx is surrounded by single quotes, then double quotes)
>003.pdf open fine with this code but if the file name has a space Adobe "cannot open" the file.

Try

oShell.run ('"c:\program files\Adobe\Acrobat 7.0\Reader\AcroRd32.exe" ' + m.XX,0,.t.)

You don't want to use macro when it's not required.