| HTMLEditor | 
 A control that allows for users to edit text, and apply styling to this text. 
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| HTMLEditorSkin.Command | 
 Represents commands that can be passed into the HTMLEditor web engine. 
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| PopupFeatures | 
 This class describes features of a Web popup window as specified by
 JavaScript window.open function. 
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| PromptData | 
 This class encapsulates data passed into JavaScript prompt() function:
 a message and a default value. 
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| WebEngine | 
 WebEngine is a non-visual object capable of managing one Web page
 at a time. 
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| WebErrorEvent | 
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| WebEvent | 
WebEvent instances are passed into  EventHandlers registered
 with a  WebEngine by JavaScript running on a Web page.  
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| WebHistory | 
The  WebHistory class represents a session history associated with
 a  WebEngine instance.  
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| WebHistory.Entry | 
 The Entry class represents a single entry in the session history. 
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