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    <p>There's actually <strong>something directly built into Windows</strong> that will do just that. It's called the <strong>Windows Task Scheduler</strong>! Rather than having a Windows application that sits and waits for the right time to run a piece of code, you'd be better off just using an underlying system utility and storing the piece of code to run in a separate executable: it's <strong>easier</strong> and <strong>more efficient</strong>.</p> <p>I've used the Task Scheduler before to configure my applications to start on a pretty specific schedule. The best way to do it out of a .NET application is to <strong>use <a href="http://www.codeproject.com/KB/cs/tsnewlib.aspx" rel="noreferrer" title="This is the library&#39;s CodeProject article">this handy little library</a></strong>.</p> <p>Basically, to accomplish what you've stated in your question, you need to make a Windows application that provides a GUI. This GUI should have options that regulate the creation and alteration of a Task. The Task should launch the code you have to run (you should store it in a separate executable, probably as a WinForms app that's transparent and, thus, hidden.)</p> <p>Here's some code <a href="http://www.codeproject.com/KB/cs/tsnewlib.aspx" rel="noreferrer" title="This is the library&#39;s CodeProject article">from the CodeProject article of the library itself</a> that illustrates how to create a task:</p> <pre><code>//Get a ScheduledTasks object for the local computer. ScheduledTasks st = new ScheduledTasks(); // Create a task Task t; try { t = st.CreateTask("D checker"); } catch (ArgumentException) { Console.WriteLine("Task name already exists"); return; } // Fill in the program info t.ApplicationName = "chkdsk.exe"; t.Parameters = "d: /f"; t.Comment = "Checks and fixes errors on D: drive"; // Set the account under which the task should run. t.SetAccountInformation(@"THEDOMAIN\TheUser", "HisPasswd"); // Declare that the system must have been idle for ten minutes before // the task will start t.IdleWaitMinutes = 10; // Allow the task to run for no more than 2 hours, 30 minutes. t.MaxRunTime = new TimeSpan(2, 30, 0); // Set priority to only run when system is idle. t.Priority = System.Diagnostics.ProcessPriorityClass.Idle; // Create a trigger to start the task every Sunday at 6:30 AM. t.Triggers.Add(new WeeklyTrigger(6, 30, DaysOfTheWeek.Sunday)); // Save the changes that have been made. t.Save(); // Close the task to release its COM resources. t.Close(); // Dispose the ScheduledTasks to release its COM resources. st.Dispose(); </code></pre> <p><em>NOTE: The <code>priority</code> option never worked for me, always crashing the app. I recommend you leave it out; usually, it doesn't make that big a difference.</em></p> <p>There are more code samples <a href="http://www.codeproject.com/KB/cs/tsnewlib.aspx" rel="noreferrer" title="This is the library&#39;s CodeProject article">on the article page</a>, some of which show how to change the settings of a Task, list all Scheduled Tasks, etc.</p>
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    1. POHow can I schedule tasks in a WinForms app?
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    1. USMaxim Zaslavsky
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    1. COthansk Maxim - any idea how this comparers with using the Task Scheduler Managed Wrapper that Shoban suggested? http://taskscheduler.codeplex.com/
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    2. COJust checked that one out, it seems to be newer. Also, I don't know if the one I suggested works with Task Scheduler 2.0 (Vista & Win7), but I'll try it.
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