HttpRuntime.ProcessRequest and "ContentType" page directive
<p>I'm using the <code>HttpRuntime.ProcessRequest</code> method to render ASPX pages outside of IIS, which all works fine when my ASPX pages render HTML.  </p>

<p>However, I also have ASPX pages that render XML and therefore set the <code>ContentType</code> Page directive to <code>text/xml</code>.  The problem is that the <code>ProcessRequest</code> method only returns a string that represents the content and therefore doesn't have a way to set the ContentType in the Response to the value indicated in the Page directive.</p>

<p>How can I get the <code>ContentType</code> value in from the Page directive into the <code>ContentType</code> value in the <code>Response</code>?</p>
