private void OnStartupAddins_ExtensionHandler(object sender, Mono.Addins.ExtensionNodeEventArgs args)
{
Log.Debug("Entering");
Mono.Addins.TypeExtensionNode extNode = args.ExtensionNode as Mono.Addins.TypeExtensionNode;
PrintInfo(ExtensionPath.OnStartup, args, extNode);
// Execute via class interface definition of extension path
// IOnStartupExtension ext = (IOnStartupExtension)args.ExtensionObject;
IOnStartupExtension addin = extNode.GetInstance(typeof(IOnStartupExtension)) as IOnStartupExtension;
addin.Execute();
// Push event changed out to listeners
OnApplicationAddinListChanged?.Invoke(sender, args);
}