<!--
only 1 app,
only 1 window,
as much ndll as you wish,
no order implied
-->

<!-- example documents:-->

<project>
    <app/>
    <window/>
</project>


<project>
    <window/>
    <app/>
</project>


<project>
    <app/>
    <window/>
    <ndll/>
    <ndll/>
    <ndll/>
</project>


<project>
    <ndll/>
    <ndll/>
    <ndll/>
    <app/>
    <window/>
</project>