This class encapsulates dockable window settings within a workspace

Autodesk.AutoCAD.Customization.ElementBase
    Autodesk.AutoCAD.Customization.VersionableElement
        Autodesk.AutoCAD.Customization.CustomizationElement
            Autodesk.AutoCAD.Customization.WorkspaceDockableWindow

Public Class WorkspaceDockableWindow
Inherits CustomizationElement

public class WorkspaceDockableWindow : CustomizationElement;