How to use a DLL in VB.NET, Created In VB.NET

Use a DLL in VB.NET which is created in VB.NET
---------------------------------------
Start a new project (Windows Application) and Code
Then : Project -> Add Reference -> locate DLL created in VB.NET and press "Ok"-button.
--------------------------------------------------------
Imports System
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim obj As New ClassLibrary1.Class1
        Dim a() As Integer = {20, 21}
        Dim b() As Integer = {0, 0}

        Dim i As Integer
        obj.Main(a, b)          'DLL function calling

        For Each i In b
            MessageBox.Show(i.ToString)
        Next
    End Sub
End Class
----------------------------------------------------------------------
Form1 has button1 which will call main funcion of DLL.

Also See : How to create dll in VB.NET