--- t3lib/class.t3lib_div ORG.php	Do Dez 16 15:10:56 2010
+++ t3lib/class.t3lib_div.php	Di Dez 21 00:32:39 2010
@@ -5963,6 +5963,8 @@
 			$cmdLine = $path.' '.implode(' ', $paramsArr);
 		}
 
+		$cmdLine = (TYPO3_OS === 'WIN' && version_compare(phpversion(), '5.3')<0) ? "\"$cmdLine\"" : $cmdLine;
+
 		return $cmdLine;
 	}