Did you add this code, or did you already have this code? ie, you absolutely should not have had to add "Public Class class1". All you should have had to add is "Implements IEventNotification" to your existing class
There is no "class1" in the test3 plugin. The plugin class was called "Test3", so the top of your modified plugin would be:
Code:
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using NUtility;
using NUtility.Base;
using NUtility.Controls;
namespace Test3
{
public class Test3 : NewStyleButtonListPlugin, IPluginConfiguration, IPluginCallback,[b] IEventNotification[/b]
{