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    <p>You say this is a webservice - timers are not guaranteed to work correctly in a web service as the lifetime of the owning threads is not guaranteed. Consider using a global worker thread that is created when the app domain starts up.</p> <p>A basic global worker thread is:</p> <pre><code>static bool _stopPolling = false; static Thread _pollerThread; static object _oneTimeLocker = new object(); private static CreatePollerThread() { if(_pollerThread == null) { lock(_oneTimeLocker) { if(_pollerThread == null) //double-check { _pollerThread = new Thread( new ThreadStart(() =&gt; { while(true &amp;&amp; !_stopPolling) { DoWork(); Thread.Sleep(10000); } })); _pollerThread.Start(); } } } } </code></pre> <p>I've used a double-checked lock there in case you want to fire up the global thread in response to a request (not best policy - since you can then have multiple requests trying to intialise the thread, potentially doing it multiple times). This isn't the only way - but it's rolling off my tongue at the moment given that I'm at work and don't have a lot of time!</p> <p>An important factor here is the _stopPolling boolean that you use to shut the thread down in a friendly manner.</p> <p>If you're in Asp.Net - then this SO: <a href="https://stackoverflow.com/questions/4617613/application-end-and-background-processes-exiting-asp-net-application-gracefully">Application_End and background processes, exiting ASP.Net application gracefully</a>, with answer by Aristos, will help you with how best to shut the thread down.</p>
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    1. POThreading Timer Not working?
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    1. USAndras Zoltan
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    1. COThis it something like that it is started one once and suppose to do its work... what is a global worker thread can u show me how to do that?
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    2. CO@Taufiq - added example for you
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    3. COThanks but can u tell me how this will help me and how to implement it on my code gave a trace log..the timer just stops...
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