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POServiceControler.GetServices() silently bailing in a background thread
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copied!<p>I am running the following line to get a list of all services for a given computer:</p> <pre><code>ServiceController[] services = ServiceController.GetServices(compName); </code></pre> <p>If I run this on the <strong>main thread</strong> and pass in a computer name that exists but I don't have permissions to view the services for, such as: </p> <pre><code>ServiceController.GetServices("OtherComp"); </code></pre> <blockquote> <p>InvalidOperationException:<br> Cannot open Service Control Manager on computer 'OtherComp'. This operation might require other privileges.</p> </blockquote> <p>I fully expect this to happen. However my issue comes with running this on a <strong>background thread</strong>. Take this fully complete console program:</p> <pre><code>using System.ComponentModel; using System.ServiceProcess; namespace ServiceTesting { internal class Program { private static void Main(string[] args) { ServiceAccessor sa = new ServiceAccessor(); sa.Run(); } } public class ServiceAccessor { BackgroundWorker bw; public ServiceAccessor() { bw = new BackgroundWorker(); bw.DoWork += new DoWorkEventHandler(bw_DoWork); bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw_RunWorkerCompleted); } public void Run() { bw.RunWorkerAsync(); } private void bw_DoWork(object sender, DoWorkEventArgs e) { //this line is where the bail happens var services = ServiceController.GetServices("OtherComputer"); } void bw_RunWorkerCompleted(object sender,RunWorkerCompletedEventArgs e) { // the code will never get to this method if (e.Error != null) { //something } } } } </code></pre> <p><strong>I would expect an exception to be thrown, but as soon as the code tries to execute this line, it bails out of the thread.</strong></p> <p>I can't wrap the line in a <code>try\catch</code>; it will won't catch it. This might be simmilar to <code>ThreadAbort</code> problems with asp.net (but that is just a guess).</p> <p>The <a href="http://msdn.microsoft.com/en-us/library/system.serviceprocess.servicecontroller%28v=vs.90%29.ASPX" rel="nofollow">msdn page on the ServiceController Class</a> says that the static function is thread safe, however, a commenter on the <a href="http://msdn.microsoft.com/en-us/library/system.serviceprocess.servicecontroller.getservices%28v=vs.90%29.aspx" rel="nofollow">function's msdn page</a> says that it is not.</p>

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