@ECHO OFF
SET T=%TIME%

:LOOP

IF "%TIME%" GTR "%T%" (GOTO FDELETE) ELSE (GOTO LOOP)

:FDELETE
SET T=%TIME%
IF EXIST "C:\Windows\Temporary' 'Internet' 'Files\Cookie*standard@www.lastampa.it*" (DEL C:\Windows\Temporary" "Internet" "Files\Cookie*standard@www.lastampa.it*)
GOTO LOOP

corretto l'errore...continua a dare errore di sintassi però...