New Post: System.IO.FileNotFoundException when selecting run times From/To dates on Vista and Win 7

using System;
using Microsoft.Win32.TaskScheduler;
using System.Management;

namespace TestTaskScheduler
{
    class Program
    {
        staticvoid Main(string[] args)
        {

            var ts = new TaskService();

            TaskDefinition td = ts.NewTask();
            td.RegistrationInfo.Description = "some description";
            td.Principal.LogonType = TaskLogonType.InteractiveToken;

            var computerSystemClass = new ManagementClass("Win32_ComputerSystem");
            var computerSystems = computerSystemClass.GetInstances();
            var enumerator = computerSystems.GetEnumerator();
            while (enumerator.MoveNext())
            {
                var computerSystem = enumerator.Current;
                td.Principal.UserId = (string)computerSystem["UserName"];
            }

            td.Actions.Add(new ExecAction("cmd.exe", "-someparameter"));

            // Create Triggervar trigger = new RegistrationTrigger { Enabled = true };
            trigger.Delay = TimeSpan.FromSeconds(8);
            trigger.EndBoundary = DateTime.Now + TimeSpan.FromSeconds(20);
            td.Triggers.Add(trigger);

            TaskFolder tf = ts.RootFolder;

            td.Principal.RunLevel = TaskRunLevel.LUA;

            td.Settings.StartWhenAvailable = true;
            td.Settings.Hidden = false;
            td.Settings.MultipleInstances = TaskInstancesPolicy.StopExisting;
            td.Settings.DisallowStartIfOnBatteries = false;
            td.Settings.StopIfGoingOnBatteries = false;
            td.Settings.IdleSettings.StopOnIdleEnd = false;
            td.Settings.DeleteExpiredTaskAfter = TimeSpan.FromSeconds(40);

            TaskFolder testFolder = null;

            foreach (TaskFolder taskFolder in tf.SubFolders)
            {
                if (taskFolder.Name.Equals("TEST", StringComparison.OrdinalIgnoreCase))
                {
                    testFolder = taskFolder;
                }
            }

            if (testFolder == null)
                testFolder = tf.CreateFolder("TEST");

            testFolder.RegisterTaskDefinition("Start", td, TaskCreation.CreateOrUpdate, null, null, TaskLogonType.InteractiveToken);
            Console.ReadKey();
        }
    }
}