A Simple Web Service (TimeService)
From Section 7.2 of the book
This example shows how to write a simple web service with a method GetTime that reads the current time on the server and sends it to the client.TimeService.asmx
If you copy this code to a file TimeService.asmx in a virtual directory of your local machine you can open it with Internet Explorer and get a test page that allows you to invoke the method GetTime.
Alternatively, you can test your web service also with WebService Studio.