Visual Basic 2015 Unleashed

Understanding References

The Base Class Library (BCL) exposes types through several assemblies that are part of the .NET Framework, and you will often need to invoke types from those assemblies. Moreover, although it is very rich, the BCL cannot define types covering every aspect of application development. This means you will often need to use types exposed by other assemblies, such as other projects in the same solution or external compiled assemblies.

Note

Each time you create a new Windows client project (via Windows Forms, WPF, Console), Visual Studio automatically adds references to some .NET assemblies (such as System.dll and System.Core.dll) that are necessary for each kind of application and that expose the BCL’s core part. In Visual ...