 from the Properties
Window of the control):
</p><ol><li>Set the <span class="code">OLEDropMode</span> of the control to 1 
(<span class="code">vbOLEDropManual</span>).  Also, note that whilst Automatic
drag and drop modes appear to be supported, they aren't really.
Why this is the case is a long but
uncomplicated story involving vodka so please just accept that you need to 
do it.</li><li>Set <span class="code">DragAutoExpand</span> to <span class="code">True</span> if
you want collapsed nodes to automatic