Priya, Impersonation means on behalf. That is, when you are impersonating some account, then you are telling that, act on behalf of some other account. Say for example, you have two roles. "administrator" and "user". When you are impersonating "user" to "administrator", you are telling that, user can act as a administrator also. That is, user can have all administrative rights, perform administrative tasks. You can achive this impersonation either through web.config or programatically. HTH, venkat.Murthy |