Index: t3lib/class.t3lib_div.php
===================================================================
--- t3lib/class.t3lib_div.php	(revision 9766)
+++ t3lib/class.t3lib_div.php	(working copy)
@@ -6174,6 +6174,8 @@
 		}
 		$path = self::fixWindowsFilePath($path);
 
+		$prefixCommand = self::prefixCommandLine($path);
+
 		$im_version = strtolower($gfxConf['im_version_5']);
 		$combineScript = $gfxConf['im_combine_filename'] ? trim($gfxConf['im_combine_filename']) : 'combine';
 
@@ -6218,10 +6220,35 @@
 			$cmdLine = $path . ' ' . implode(' ', $paramsArr);
 		}
 
-		return $cmdLine;
+		return $prefixCommand . $cmdLine;
 	}
 
 	/**
+	 * Builds prefix for command line calls in Windows
+	 *
+	 * When using a call to a command line function in Windows and PHP < 5.3.0 and if there are more than two double quotes in
+	 * the command will simply not work due to a bug in PHP. A workaround is to add a dummy command in front of the actual
+	 * command
+	 *
+	 * @static
+	 * @param string $path Path to command
+	 * @return string Prefix for command
+	 */
+	protected static function prefixCommandLine($path) {
+		$prefixCommand = '';
+		if (TYPO3_OS == 'WIN' && version_compare(phpversion(), '5.3.0') == -1) {
+			if (preg_match('/([a-z]:)/i', $path, $matches)) {
+					// if a drive letter is found, use it
+				$prefixCommand = $matches[1] . ' & ';
+			} else {
+					// fallback is drive c:, which should be present in Windows installations
+				$prefixCommand = 'c: & ';
+			}
+		}
+		return $prefixCommand;
+	}
+
+	/**
 	 * Explode a string (normally a list of filenames) with whitespaces by considering quotes in that string. This is mostly needed by the imageMagickCommand function above.
 	 *
 	 * @param	string		The whole parameters string