c#调用QQ开启临时会话

 public void StartQQ(string QQ)
        {
            var openkey64 = @"SOFTWARE\Wow6432Node\Tencent\QQ2009";
            var openkey32 = @"SOFTWARE\Tencent\QQ2009";
            var openkeyTim64 = @"SOFTWARE\Wow6432Node\Tencent\TIM";

            var qqPath = "";
            RegistryKey reg64 = Registry.LocalMachine.OpenSubKey(openkey64);
            RegistryKey reg32 = Registry.LocalMachine.OpenSubKey(openkey32);
            RegistryKey regTim32 = Registry.LocalMachine.OpenSubKey(openkeyTim64);

            if (reg64 != null)
            {
                qqPath = reg64.GetValue("Install").ToString();
            }
            else if (reg32 != null)
            {
                qqPath = reg32.GetValue("Install").ToString();
            }
            else if (regTim32 != null)
            {
                qqPath = regTim32.GetValue("Install").ToString();
            }


            if (!string.IsNullOrWhiteSpace(qqPath))
            {
                var dizhi1 = qqPath + @"\Bin\Timwp.exe";
                var arg = "tencent://message/?uin=" + QQ;
                Process.Start(dizhi1, arg);
                //ThisHidden();
            }
            else
            {
                System.Windows.Forms.MessageBox.Show("未检测到安装QQ");
            }
        }
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