how to show windows service exception in GUI Message?

How i show GUI message sh开发者_如何学编程ow box for Windows Service.

I got one link on MSDN but no idea from where I start my work, please guide me.

http://msdn.microsoft.com/en-us/library/ms683502(v=vs.85).aspx

http://blogs.msdn.com/b/yvesdolc/archive/2009/08/20/do-you-still-use-the-messagebox-api-in-your-windows-service.aspx

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You can't show UI from a service. Services run in session 0 and there is no desktop. What's more services run when there are no logged on users. Again there is no desktop.

You have a couple of options:

1. Log your messages rather than attempt to show them.
2. Have a helper application that runs as a standard user app on the logged on user's desktop. This app can show UI. Communicate between the service and the app via an IPC mechanism of your choice.

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If your needs are limited to dialog boxes, check out the WTSSendMessage function.