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POAm I authorized to start/stop windows services?
 

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  1. POAm I authorized to start/stop windows services?
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    <p>Is there a way in C# to determine if I am authorized to start and stop windows services?</p> <p>If my process is running under the NETWORK SERVICE account and I attempt to stop a service I will get a "Access denied" exception, which is fine, but I would like to be able to determine if I am authorized before attempting the operation.</p> <p>I am trying to improve code that looks like this:</p> <pre><code>var service = new ServiceController("My Service"); service.Stop(); service.WaitForStatus(ServiceControllerStatus.Stopped, TimeSpan.FromSeconds(10)); </code></pre> <p>to something like:</p> <pre><code>if (AmIAuthorizedToStopWindowsService()) { var service = new ServiceController("My Service"); service.Stop(); service.WaitForStatus(ServiceControllerStatus.Stopped, TimeSpan.FromSeconds(10)); } </code></pre> <p><strong>UPDATE</strong> What about something like this:</p> <pre><code>private bool AutorizedToStopWindowsService() { try { // Try to find one of the well-known services var wellKnownServices = new[] { "msiserver", // Windows Installer "W32Time" // Windows Time }; var services = ServiceController.GetServices(); var service = services.FirstOrDefault(s =&gt; s.ServiceName.In(wellKnownServices) &amp;&amp; s.Status.In(new[] { ServiceControllerStatus.Running, ServiceControllerStatus.Stopped })); // If we didn't find any of the well-known services, we'll assume the user is not autorized to stop/start services if (service == null) return false; // Get the current state of the service var currentState = service.Status; // Start or stop the service and then set it back to the original status if (currentState == ServiceControllerStatus.Running) { service.Stop(); service.WaitForStatus(ServiceControllerStatus.Stopped, TimeSpan.FromSeconds(5)); service.Start(); service.WaitForStatus(ServiceControllerStatus.Running, TimeSpan.FromSeconds(5)); } else { service.Start(); service.WaitForStatus(ServiceControllerStatus.Running, TimeSpan.FromSeconds(5)); service.Stop(); service.WaitForStatus(ServiceControllerStatus.Stopped, TimeSpan.FromSeconds(5)); } // If we get this far, it means that we successfully stopped and started a windows service return true; } catch { // An error occurred. We'll assume it's due to the fact the user is not authorized to start and stop services return false; } } </code></pre>
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    1. COI think you could do some basic permissions checks, such as finding out if your process is running as an Administrator; but that's not always definitive. I think the only thing you can do that will be 100% accurate is attempt to stop the service and trap the exception if you don't have the proper permissions.
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      1. USCodingGorilla
    2. CO@CodingGorilla Yup. I doubt that there is a way to "lock" the OS to prevent permission changes between a test to see if an account can stop a service, and actually stopping the service.
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      1. USKeith Payne
    3. COI found a "IsAdministrator" method in this article http://stackoverflow.com/questions/3892088/servicecontroller-permissions-in-windows-7 which returns a Boolean indicating if a user is member of the local admin role but that's probably overkill
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