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Before you can write quality Visual Basic applications on the .NET platform, you must have a good understanding of objected-oriented programming (OOP) concepts. This chapter presents a brief introduction to these concepts.
Visual Basic has included at least some object-oriented programming features since Version 4. But these features were limited, and some workarounds were required to simulate the missing features, if they could be simulated at all. The advent of .NET infused Visual Basic with a more complete set of OOP features.