tinstaafl

You've created 2 'MealCalc' variables. Remove the one on line 12 and you should see a difference.

You're assigning the same value to Operand2 as to Operand1. Try this instead: Operand2=Val(TextBox1.Lines(1))

I think what you are looking for is to read the My.Application.CommandLineArgs during the Form Load event.

It appears to me that if Form2 is already designed that you won't need to Dim a new one just show the one you have.

Most wysiwyg editors that I've seen include an option to view the source code. Perhaps enabling this view then inputting your code, will work.

You could try putting the default value into a constant.

Just from a glance it looks like you're not referencing your collection right, try changing b.Add(user) to bb.Add(user) and a.Add(user) to aa.Add(user) You might want to think about making option explicit it'll catch errors like this.