>Is there a way to define a public property of a class to only be avaiable in its own DLL? Basically, some of them, I do not want to expose them in the application level, which includes the Framework.dll in the References. So, when someone establishes an object reference to a class of the framework, I only want to expose some properties that are public and not all of them.

In C# the internal modifier will scope visibility to the assembly in which the property is declared.
Isn't the VB.NET equivalent 'Friend'