> ' How do I know what to inherit when defining a class? Is there
> ' a master list of what classes are available and when to use them?
The list of classes is huge. You can find it online or via the Help on the VS.NET IDE:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpref/html/cpref_start.asp


> ' I understand this is a call to the parent class 'New' method.
> ' What does the 'New' method actually do? And can I see the parent
> ' class code anywhere?

Take a look at the description of the new method in the help. You won't be able to see the code in this class since it is referencing the New method in the .NET Forms class. You could see the code if you had developed the parent class, though.


> ' Here is an overridden method 'Dispose'. Where is this method
> ' defined? Again, can I see the code, or at least an explanation
> ' of what it does?
Same thing. You might want to get a book (or two<g>) on the .NET Framework itself and how to develop Windows Forms applications with them to help you get started.