using System; using System.Collections.Generic; using System.Text; using System.Security; using System.Security.Permissions; class Program { static void Main(string[] args) { CodeAccessPermission permissionA = new FileIOPermission(FileIOPermissionAccess.AllAccess, @"C:"); CodeAccessPermission permissionB = new FileIOPermission(FileIOPermissionAccess.Read, @"C: emp"); if (permissionB.IsSubsetOf(permissionA)) { Console.WriteLine("PermissionB is a subset of PermissionA"); } else { Console.WriteLine("PermissionB is NOT a subset of PermissionA"); } } }