The CAB extensions support using the UltraWinToolBar as extension sites.  The ToolbarsManagerFactory supports UltraToolBars and the ToolsCollectionUIAdapter supports PopupMenuTools.  Is there any examples of placing a UltraWinToolBarManager on a form with one ToolBar and then using registering UIElementSites to manipulate it in code?

It appears that the sites don't include the manager but you need to add tools to it's collection before you can add them to the popupmenu.  How would you structure this in your application so that CAB modules dynamically loaded can add or manipulate toolbars and popupmenus?