TreeView control in a window

Hi,
I need to show a "MSComctlLib.TreeView" treeview in a new window of a Visio 2000 application.

Visio 2000 VBA allows to create new windows (Object Visio.Window) ...
Dim wnd As Visio.Window
Set wnd = ActiveDocument.Application.Windows.Add("Navigatore")

MSComLib allows to allocate TreeView control object ...
Dim tv_Obj As MSComctlLib.TreeView
Set tv_Obj = New MSComctlLib.TreeView

Now, how can i insert the treeview object (tv_obj) in the Visio.Window (wnd)?

:confused: