How do I call a webservice in the Application_Exit event?

How do I call a webservice in the Application_Exit event?

private void Application_Exit(object sender, EventArgs e)
{
  TestWSSoapClient.ReleaseUserCompleted += new EventHandler<System.ComponentModel.AsyncCompletedEventArgs>(TestWSSoapClient_ReleaseUserCompleted);
  TestWSSoapClient.ReleaseUserAsync(UserToken);
}

The method below is no longer executed.

void TestWSSoapClien开发者_如何转开发t_ReleaseUserCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{

}

Thank you in advance.

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You can't call any web services when exiting by design, however this article might help you with an Javascript alternative.

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Do you really need to get the response? You won't be able to get it as all threads will be closed at the end of the Application_Exit function. But if it doesn't matter, you can configure your "ReleaseUser" operation as OneWay.

As I didn't test it, it is only a supposition, but I think it should work (and if it doesn't, well, I will learn something)

Otherwise, as said before, javascript is the only way to go, but it won't work Out of Browser.