C# - AddAccessRule

private static void GrantAccess(string file)
{
            bool exists = System.IO.Directory.Exists(file);
            if (!exists)
            {
                DirectoryInfo di = System.IO.Directory.CreateDirectory(file);
                Console.WriteLine("The Folder is created Sucessfully");
            }
            else
            {
                Console.WriteLine("The Folder already exists");
            }
            DirectoryInfo dInfo = new DirectoryInfo(file);
            DirectorySecurity dSecurity = dInfo.GetAccessControl();
            dSecurity.AddAccessRule(new FileSystemAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), FileSystemRights.FullControl, InheritanceFlags.ObjectInherit | InheritanceFlags.ContainerInherit, PropagationFlags.NoPropagateInherit, AccessControlType.Allow));
            dInfo.SetAccessControl(dSecurity);

}