read list items from sharepoint 2010 server to silverlight web application (cross-domain)

on one server i have www with silverlight web application. In a diffrent place in the world is the secound server with sharepoint 2010 fondation. While client connects to 开发者_如何学Cwww server, the silverloght web application goes to him, and then trying to read list elements from sharepoint. On client desktop comes Windows - login window, after client provide username and the password, application can read the list items. Question: how to login IN THIS CASE from silverlight application without user prompt.

part of my code (reads only list infromation):

    SilverlightApplication2.listsWebService.ListsSoapClient lws = new SilverlightApplication2.listsWebService.ListsSoapClient();


    public MainPage()
    {
        InitializeComponent();

        lws.GetListCompleted += new EventHandler<listsWebService.GetListCompletedEventArgs>(lws_GetListCompleted);


        lws.GetListAsync("PagesContent");


    }

    void lws_GetListCompleted(object sender, listsWebService.GetListCompletedEventArgs e)
    {
        deltaValue.Text = e.Result.Value; 
    }

It can be very confusing when solving Silverlight auth in Sharepoint. I know this is possible when using Forms authentication, through web service called autentication.asmx.

With Windows authentication, I always used current logged user (which is SL default behavior).
I don't know if that can be changed from inside SL..

Here is one article that may help...

Sorry for such answer... :)