# ASP Built-in Objects

Active Server Pages (ASP) implements classes that enable your component to access the properties and methods of the ASP built-in objects. The ObjectContext object exposes methods that return an interface to one of the ASP built-in objects. Your component can use these interfaces to access the methods and properties of the built-in objects.

The following table lists the built-in object classes:

Class | Use to
Application Object | Calls the methods and properties of the Application Object.
ASPError Object | Calls the methods and properties of the ASPError Object.
ObjectContext Object | Returns the built-in objects and provide methods used in transaction processing.
Request Object | Calls the methods and properties of the Request Object.
Response Object | Calls the methods and properties of the Response Object.
ScriptingContext | Returns the built-in objects: Application Object, Request Object, Response Object, Server Object, or Session Object. This is an obsolete approach. You should use ObjectContext instead.
Server Object | Calls the methods and properties of the Server Object.
Session Object | Calls the methods and properties of the Session Object.

To use the ObjectContext and built-in objects in a Visual Basic component, you must include a reference to the Microsoft® ASP Object Library in your Visual Basic project.

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