VS Studio .NET environment and VB.NET compile error: Sub Main was not found

I'm trying to write a very simple console exe in vb.net. I have written the .vb file and opened it inside Visual Studio .NET but it seems I can't compile from within here without defining a project for my solution. (Is that correct?)

And if I try to add a project, all the available ones are in C# which I don't want to code in.

So I instead run the command line compiler, vbc, to compile my simple little .vb file:
vbc /out:c:/hello.exe /t:exe c:/"vbnet/Hellovb"

BUT IT DOESN'T compile, annoyingly.. It says "Sub Main was not found in 'Hello'"

Here is my code:
Imports System
Imports System.Data
Imports System.Console
Module MyApp
Sub Main()
Dim obj As Class1 = New Class1
System.Console.WriteLine(obj.Method1)
System.Console.ReadLine()
End Sub
End Module

Class Class1
Function Method1() As String
Return "Hello Experts Exchange"
End Function
End Class

What the heck is going on???

Thank you!