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Start Method ()
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ServiceController.Start Method ()

Starts the service, passing no arguments.

Namespace: System.ServiceProcess
Assembly: System.ServiceProcess (in system.serviceprocess.dll)

'Declaration
Public Sub Start
'Usage
Dim instance As ServiceController

instance.Start
public void Start ()
public function Start ()

Exception typeCondition

Win32Exception

An error occurred when accessing a system API.

InvalidOperationException

The service cannot be started.

You cannot call Stop for the service until the service controller status is Running.

The following example uses the ServiceController class to check whether the Alerter service is stopped. If the service is stopped, the example starts the service and waits until the service status is set to Running.


' Check whether the Alerter service is started.

Dim sc As New ServiceController()
sc.ServiceName = "Alerter"
Console.WriteLine("The Alerter service status is currently set to {0}", sc.Status)

If sc.Status = ServiceControllerStatus.Stopped Then
   ' Start the service if the current status is stopped.
   Console.WriteLine("Starting the Alerter service...")

   Try
      ' Start the service, and wait until its status is "Running".
      sc.Start()
      sc.WaitForStatus(ServiceControllerStatus.Running)
      
      ' Display the current service status.
      Console.WriteLine("The Alerter service status is now set to {0}.", sc.Status)
   Catch 
      Console.WriteLine("Could not start the Alerter service.")
   End Try
End If


// Check whether the Alerter service is started.
ServiceController sc = new ServiceController();
sc.set_ServiceName("Alerter");
Console.WriteLine("The Alerter service status is currently set to {0}",
    sc.get_Status().ToString());

if (sc.get_Status().Equals(ServiceControllerStatus.Stopped)) {
    // Start the service if the current status is stopped.
    Console.WriteLine("Starting the Alerter service...");
    try {
        // Start the service, and wait until its status is 
        // "Running".
        sc.Start();
        sc.WaitForStatus(ServiceControllerStatus.Running);
        // Display the current service status.
        Console.WriteLine("The Alerter service status is now set to {0}.",
            sc.get_Status().ToString());
    }
    catch (InvalidOperationException exp) {
        Console.WriteLine("Could not start the Alerter service.");
    }
}

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

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