+REM Note that in DOS error level is not the return code of the previous
+REM command; it is for (some!) built-in DOS commands like FIND but
+REM in general it's not. Thus to get the return code of the test utility
+REM we need some hack; see the guide:
+REM http://www.infionline.net/~wtnewton/batch/batguide.html
+REM for general info about DOS batch files.
+
+REM Author: Francesco Montorsi