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

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.

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