using System; using System.Security.Principal; class MainClass { public static void Main (string[] args) { WindowsIdentity identity = WindowsIdentity.GetCurrent(); WindowsPrincipal principal = new WindowsPrincipal(identity); foreach (string role in args) { Console.WriteLine("Is {0} a member of {1}? = {2}", identity.Name, role, principal.IsInRole(role)); } } }