Use the Visual Studio .NET debugger to observe the run-time behavior of your program and service classes.
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If this is the first time you are running the application set the startup project and the start page |
Setting the startup project

Setting the start page (this tutorial uses the wizard generated Console.aspx page that will redirect to the Service Browser page).
Later you can change this to point to the page that loads your client application.

Set your breakpoints and start debugging

Visual Studio launches the default browser, starts your application, the start page is loaded in the browser.
Set parameter values and hit the "Call" button

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You can additionally start as many browsers you want and any client's call will hit your breakpoints. |
Visual Studio breakpoint is hit.

Debug & Continue running your application.

Client receives the results

Other Resources Debugging in Visual Studio