Adding Custom Functionality to ADSI for IIS

A custom method, or function, can be added to the IIS ADSI programming model in the form of an ADSI extension. An ADSI extension is a COM object that developers use to extend an ADSI object. Each extension is associated with a specified class in ADSI. With the extension model, developers can give more dynamic meaning to an object by implementing a function in a custom extension and then binding the extension to the class object they want to extend.

This topic contains:

• Introduction: Describes what an ADSI extension is and offers advice on how to determine if a custom extension is needed.
• Architecture of the Extension Model: Describes the architecture of the COM aggregation model and how it makes ADSI extensions possible.
• Creating an ADSI Extension for IIS: Provides information on how to create an ADSI extension that provides support for early or late binding automation tools.