public static bool InitializeSteam3(string username, string password)
        {
            string loginKey = null;

            if (username != null && Config.RememberPassword)
            {
                _ = AccountSettingsStore.Instance.LoginKeys.TryGetValue(username, out loginKey);
            }

            steam3 = new Steam3Session(
                new SteamUser.LogOnDetails()
            {
                Username = username,
                Password = loginKey == null ? password : null,
                ShouldRememberPassword = Config.RememberPassword,
                LoginKey = loginKey,
                LoginID  = Config.LoginID ?? 0x534B32,    // "SK2"
            }
                );

            steam3Credentials = steam3.WaitForCredentials();

            if (!steam3Credentials.IsValid)
            {
                Console.WriteLine("Unable to get steam3 credentials.");
                return(false);
            }

            cdnPool = new CDNClientPool(steam3);
            return(true);
        }
        public static void ShutdownSteam3()
        {
            if (cdnPool != null)
            {
                cdnPool.Shutdown();
                cdnPool = null;
            }

            if (steam3 == null)
            {
                return;
            }

            steam3.TryWaitForLoginKey();
            steam3.Disconnect();
        }