C#操作系统计划任务

首先需要引用system32下的taskschd.dll

测试环境：win8+vs2012+.net4.0

  /// <summary>
         /// 删除任务
         /// </summary>
         /// <param name="taskName"></param>
         private static void DeleteTask(string taskName)
         {
             TaskSchedulerClass ts = new TaskScheduler.TaskSchedulerClass();
             ts.Connect(null, null, null, null);
             ITaskFolder folder = ts.GetFolder("\\");
             folder.DeleteTask(taskName, );
         }

         /// <summary>
         /// 获取所有任务
         /// </summary>
         public static IRegisteredTaskCollection GetAllTasks()
         {
             TaskSchedulerClass ts = new TaskSchedulerClass();
             ts.Connect(null, null, null, null);
             ITaskFolder folder = ts.GetFolder("\\");
             IRegisteredTaskCollection tasks_exists = folder.GetTasks();
             return tasks_exists;
         }

         /// <summary>
         /// 任务是否存在
         /// </summary>
         /// <param name="taskName"></param>
         /// <returns></returns>
         public static bool IsExists(string taskName)
         {
             var isExists = false;
             IRegisteredTaskCollection tasks_exists = GetAllTasks();
             for (int i = ; i <= tasks_exists.Count; i++)
             {
                 IRegisteredTask t = tasks_exists[i];
                 if (t.Name.Equals(taskName))
                 {
                     isExists = true;
                     break;
                 }
             }
             return isExists;
         }

         /// <summary>
         /// 创建任务
         /// </summary>
         /// <param name="creator"></param>
         /// <param name="taskName"></param>
         /// <param name="path"></param>
         /// <param name="starttime"></param>
         /// <param name="interval"></param>
         /// <param name="description"></param>
         /// <returns></returns>
         public static _TASK_STATE CreateTaskScheduler(string creator, string taskName, string path, string starttime, string interval, string description)
         {
             try
             {
                 if (IsExists(taskName))
                 {
                     DeleteTask(taskName);
                 }

                 //new scheduler
                 TaskSchedulerClass scheduler = new TaskSchedulerClass();
                 //pc-name/ip,username,domain,password
                 scheduler.Connect(null, null, null, null);
                 //get scheduler folder
                 ITaskFolder folder = scheduler.GetFolder("\\");

                 //set base attr
                 ITaskDefinition task = scheduler.NewTask();
                 task.RegistrationInfo.Author = creator;//creator
                 task.RegistrationInfo.Description = description;

                 //set trigger  (IDailyTrigger ITimeTrigger)
                 ITimeTrigger tt = (ITimeTrigger)task.Triggers.Create(_TASK_TRIGGER_TYPE2.TASK_TRIGGER_TIME);
                 tt.Repetition.Interval = interval;// format PT1H1M==1小时1分钟 设置的值最终都会转成分钟加入到触发器
                 tt.StartBoundary = starttime;//start time

                 //set action
                 IExecAction action = (IExecAction)task.Actions.Create(_TASK_ACTION_TYPE.TASK_ACTION_EXEC);
                 action.Path = path;
                 action.Arguments = "AB1";//运行程序时需要的参数，如果没有可以不写。

                 task.Settings.ExecutionTimeLimit = "PT0S"; //运行任务时间超时停止任务吗? PTOS 不开启超时
                 task.Settings.DisallowStartIfOnBatteries = false;//只有在交流电源下才执行
                 task.Settings.RunOnlyIfIdle = false;//仅当计算机空闲下才执行

                 IRegisteredTask regTask = folder.RegisterTaskDefinition(taskName, task,
                                                                     (int)_TASK_CREATION.TASK_CREATE,
                                                                     null, //user
                                                                     null, // password
                                                                     _TASK_LOGON_TYPE.TASK_LOGON_INTERACTIVE_TOKEN,
                                                                     "");
                 IRunningTask runTask = regTask.Run(null);
                 return runTask.State;

             }
             catch (Exception ex)
             {
                 throw ex;
             }

         }

调用方法：

         private void button5_Click(object sender, EventArgs e)
         {
             //string a = WindowsIdentity.GetCurrent().Name;
             //string b = Environment.UserName;
             //string c = System.Net.Dns.GetHostName();

             string creator = "Hello";
             string taskName = "Hello.Task";
             string path = Application.StartupPath + "\\aaaa.bat";
             string interval = "PT1H1M";//格式 PT1H1M==1小时1分钟
             string starttime = DateTime.Now.ToString("yyyy-MM-ddT00:00:00"); //格式 "2015-10-09T14:27:25";
             string description = "";

             CreateTaskScheduler(creator, taskName, path, starttime, interval, description);
         }