I previous projects I used Module.bas to handle most of my code. In VB.NET How do I call these from my forms. For an example

I have a Module called Main.bas and Something.bas. In VB6 I used

Main.DoSomething()
Sonething.AnotherThing()

Also, when I refer to textboxes on the form from the Module I used.

Form1.Textbox1.text = "Hello World."

How would I handle these two examples. Thanks in advance.