<pre lang="vb">Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim StrAssembly As String = "CustomPlugin1, Version=1.0.0.0, Culture=neutral, PublicKeyToken=ef086aa3bcfa80b5" Plugin = System.Reflection.Assembly.Load(StrAssembly) Dim Instance As StandardPlugin.Cls_Main Instance = DirectCast(Plugin.CreateInstance("CustomPlugin1.Cls_Main"), StandardPlugin.Cls_Main) Instance.DoTest() End Sub