>I have written a C# Web Service and I want to access it in a C# class.
>
>I have added a web reference to the WS, but I'n not sure what to do next. Can someone advice me?

Disregard the other post. To access via the URL:
Instantiate using the format of the reference. e.g

com.somewhere.www.Class x = new com.somewhere.www.Class();
object o = x.Somemethod();