        to a Web server request, and use the null request ID.  Records
        of other types contain request-specific information, and cannot
        use the null request ID.<p>
    <li><tt>stream</tt>:
        records of this type form a stream, terminated by a
        record with empty <tt>contentData</tt>.  Records of other types
        are discrete; each carries a meaningful unit of data.<p>
</ul>
<pre>

                               WS->App   management  stream

        FCGI_GET_VALUES           x  