以下是1.1中的代码，但在2.0中不能用了：
using System.ServiceProcess;

        public void ResetAspNetService()
        {
            ServiceController sc = new ServiceController("aspnet_state");
            if (sc.Status == ServiceControllerStatus.Running)
            {
                sc.Stop();
                sc.WaitForStatus(ServiceControllerStatus.Stopped);  //等待服务停止
                if (sc.Status == ServiceControllerStatus.Stopped)
                {
                    sc.Start();
                }
            }
            else
            {
                sc.Start();
            }
        }

作者：jzyray：看看项目有没有引用system.serviceprocess.dll