XML Tree Control

Hello.
It may be slightly off-topic.

I'm developing an XML based system for Windows, and looking for an 
XML Tree Control(Active X) with following features.

1. shows XML as tree
2. allows to drag-drop each tree node
3. allows to get a tree node attached with an XML node

In 1, not pure tree control but hyblid control between tree-list is 
also welcome. (In my research, some controls shows elements in tree 
control and other features in list control)

In 2, I want not only to drag-drop in tree control, but also to
drag-drop across applications (OLE drag-drop). And I want to store 
my program's management data in each tree node, and put original 
format data onto clipboard in (OLE) drag-drop operation.

In 3, I want to do followings:
 1. search xml nodes with XML parser (XPath etc..)
 2. get tree nodes attached with xml nodes 
 3. pick out management data from tree nodes

If anyone knew good tools, could you tell me them? I don't care it 
is free or not.

Thank you in advance.

-- 
Shinichiro Hamada