In Visual Studio 2010, I have a web service reference added. In the app.config, it is registered as follows:
<applicationSettings>
<Project.Properties.Settings>
<setting name="Project"
serializeAs="String">
<value>http://myurl:8080/FileSystemIOService</value>
</setting>
</Project.Properties.Settings>
</applicationSettings>
When I update the app.config URL, the project does not use the url. Instead it uses the Web Reference Url property setting of the web reference.
I have to change this property and recompile the code to change the Web Reference URL.
In other web service projects I have never had this issue. Changing the Url in the app.config correctly repointed the web service.