Appendix A: Extensibility Objects

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Summary

In this chapter you saw how to use the Migration Wizard to upgrade a VB 6.0 addin to Visual Basic .NET. You learned that you need to move from the older extensibility model to the new model in .NET. You also saw an outline of a procedure for upgrading your old add-ins from VB 6.0 to .NET, along with suggestions for continuing the learning process of developing add-ins in .NET.

As I said previously, it would not be possible to cover all of the objects, methods, properties, events, classes, and interfaces that are provided by the extensibility model. That would require me to know the intricacies of practically every object listed in MSDN. From the outset, that was not the stated goal of this book. I do hope that I have helped provide you with a jump start in the major areas that you might want to create add-in functionality.

Remember, add-ins are limited only by the creativity and ingenuity of the developer. However, in Visual Studio .NET, with more power comes the requirement for more research. In many cases, you will become frustrated by the abstract nature of the various objects and the lack of adequate documentation and examples in MSDN. But perseverance will be rewarded with success in most cases. From personal experience in doing the research for this book, the old adage "If at first you don't succeed, try, try again" is the best advice I can give you. Sometimes you will be tempted to give up. Let me encourage you to try it another way, again and again, until you succeed.

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