how to display webservices if endpoint is known

Question

 Can some one provide a simple code to access a webservice if the endpoint is know in C#?

There are couple of ways that I can descrive it

-When service reference is added (in VS2010), the user enters the URL of server hosting the service adn the service name and its methods are displayed nicely.

-Also, soapUI.exe does the same thing.

I know that you can add the URL in the browser and displayed the information but not really what I want. I want my own customized app with predefine endpoints.

Any help is greatly appreciated