<?xml version="1.0" encoding="utf-8" ?> <configuration> <applicationSettings> <WindowsApplication2.Properties.Settings> <setting name="WindowsApplication2_com_theurl_www_class" serializeAs="String"> <value>http://theurl.com/lvlink/ws/class.asmx</value> </setting> </WindowsApplication2.Properties.Settings> </applicationSettings> </configuration>Changing the < value > changes the URL used for the service. I've mangled the above to protect the innocent but you should see something similar. Pretty much the same thing is created in the web.config for a web application as well.