Hi, I have an ASP.Net MVC Application ,from this I pass the .ASPXAUTH cookie to silverlight application . I am able to get this cookie using HtmlPage.Document.Cookies.Split(';');. Now I want to pass this cookie to my webservice through headers ,so that based on this I can authenticate the user .How can I set in silverlight apllication and then get cookies in webservice . Thanks in Advance DNM