Such windows will generally need to be re-developed using native VAST constructs. Widgets that have no analog in the VAST world are mapped to CwLabel as a placeholder with the name of the widget as the label. Style and property selections on the VSE side are preserved where possible. VSE-style events are mapped into appropriate callbacks and event handlers. Events without an analog are dropped.
Nested menus are fine.
Colors are mapped to appropriate CgRGBColor instances. Fonts generated using portable font code generation under VSE are mapped to the corresponding VAST font. All other fonts map to the default font. Before file-in, the imported files are scanned for undeclared globals. A generic widget - a widget with no analog is encountered.