It worked well over Windows 7 but it didn't on Window 2003 Server.
Finally, I tried it adding .bat
after calling the Shell and it works.
I had to put this in the Run field:
C:\Inetpub\wwwroot\CakePHP\lib\Cake\Console\cake.bat mail read
It seems Windows 2003 needs the .bat
at the end...
I found it at: http://www.geekyboy.com/archives/376