private void StartPlugin(IPlugin plugin, CountdownEvent pluginStarted, CountdownEvent pluginStopped)
        {
            var action = plugin.Start();

            pluginStopped.Increment();

            if (action != null)
            {
                pluginStarted.Increment();
                pluginStartedTemporary = pluginStarted;
                plugin.Started        += WhenPluginHasStarted;
                ThreadPool.QueueUserWorkItem(x => ExecuteSafe(action));
            }
        }