System.Net.AutoWebProxyScriptWrapper.OnDomainUnload C# (CSharp) Method

        private static void OnDomainUnload(object sender, EventArgs e)
        {
            lock (s_AppDomains.SyncRoot)
            {
                if (!s_CleanedUp)
                {
                    s_CleanedUp = true;
                    foreach (AppDomain domain in s_AppDomains.Values)
                    {
                        try
                        {
                            AppDomain.Unload(domain);
                        }
                        catch { }
                    }
                    s_AppDomains.Clear();
                    AppDomain excessAppDomain = s_ExcessAppDomain;
                    if (excessAppDomain != null)
                    {
                        try
                        {
                            AppDomain.Unload(excessAppDomain);
                        }
                        catch { }
                        s_ExcessAppDomain = null;
                    }
                }
            }
        }