how to dynamically add popup menu as menu item under FILE

In my menu, the default menu items under FILE are:

File                Edit  View
   -> New
   -> Open
    ...etc...

I want to programmatically/dynamically add a pop menu as a menu item under File:

File
   -> New
   -> MyPopupMenu
   -> Open

where the menu items under MyPopupMenu are:

  -> MyPopupMenu 
       -> Item 0
       -> Item 1
       -> Item 2

Regardless of what I do, MyPopupMenu is always incorrectly inserted to the right of FILE.   That is, my menu appears as follows:

File MyPopupMenu Edit View

The code below illustrates how I am attempting to add MyPopupMenu.  How do I modify the code so that MyPopUpMenu appears as a menu item under FILE instead of to the right of FILE in the menu?

Thanks in advance

Ian

// sample code called at the end of CMainFrame::LoadFrame()

 CMenu* menu = GetMenu();
 ASSERT( NULL != menu  &&  ::IsMenu( *menu ) );

 CMenu popupMenu;
 VERIFY( popupMenu.CreatePopupMenu() );
 UINT startID = 38040;
 VERIFY( popupMenu.AppendMenu( MF_STRING, startID + 0, _T("Item #0") ) );
 VERIFY( popupMenu.AppendMenu( MF_STRING, startID + 1, _T("Item #1") ) );
 VERIFY( popupMenu.AppendMenu( MF_STRING, startID + 2, _T("Item #2") ) );

 MENUITEMINFO info = { 0 };
 info.cbSize = sizeof( MENUITEMINFO );
 info.fMask = MIIM_SUBMENU | MIIM_STRING;
 info.hSubMenu = popupMenu.Detach();
 info.dwTypeData = _T("MyPopupSubMenu") ;
 VERIFY( menu->InsertMenuItem( 1, &info, TRUE ) );