at is 
programs which do not use DLLS, one can specify
<code style="white-space: normal">BOOST_CLASS_EXPORT(my_class)</code>
or
<code style="white-space: normal">BOOST_CLASS_EXPORT_GUID(my_class, "my_class_external_identifier")</code>
in either he declaration header or definition.  These macros
expand to invocation of the of both of the macros described above.
<i>(<b>GUID</b> stands for <b>G</b>lobally <b>U</b>nique <b>ID</b>entfier.)</i>
<p>
<i>(<a target="detail" href="special.html#export">Elsewhere</a>
i