Software developer can use System.Web.SessionState.HttpSessionState member IsCookieless which identifies whether this session is tracked with a cookie or using modified URLs. Related TutorialsHow to validate an XML document with XML Schemas in C# How to create a simple content page in ASP.NET How to use XSL to transform XML content How client-side validation works in ASP.NET 4.0 How to create an ASP.NET web-page client for a web service in C#