Many people have problems retrieving the session object in a dll that is loaded in your front end.Imagen you have a front end layer, with your aspx files, and you backend (BLL /DAL) written in a class library and you want to retrieve some information you have saved in your ASP.NET session.To be honoust it's quite simple, i'll show you how I did it:1. Create a class witch will have acces to the session object in your back-end: Public Class SessionManager...End Class2. Since we want only 1 instance...