s.
  </P>

  <P>
    See also:
    <A href="component.html"><TT>Component</TT></A>,
    <A href="sandbox.html"><TT>Sandbox</TT></A>,
    <A href="url.html"><TT>Url</TT></A>
  </P>

<?php section("import", "import") ?>

  <PRE>
    import signature COMPONENT_MANAGER from "x-alice:/lib/system/COMPONENT_MANAGER-sig"
    import structure ComponentManager from "x-alice:/lib/system/ComponentManager"</PRE>

<?php section("interface", "interface") ?>

  <PRE>
    signature COMPONENT_MANAGER =
    sig
	exception <A 