C:\test>dir \Program^ Files\*
The system cannot find the file specified.

C:\test>dir "\Program Files\*"
 Volume in drive C has no label.
 Volume Serial Number is 8C78-4B42

 Directory of C:\Program Files

30/04/2012  19:40    <DIR>          .
30/04/2012  19:40    <DIR>          ..
...