protected override bool ReleaseHandle()
        {
            uint err = UnsafeNetInfoNativeMethods.CancelMibChangeNotify2(base.handle);

            base.handle = IntPtr.Zero;
            return(err == UnsafeNclNativeMethods.ErrorCodes.ERROR_SUCCESS);
        }
        protected override bool ReleaseHandle()
        {
            uint num = UnsafeNetInfoNativeMethods.CancelMibChangeNotify2(base.handle);

            base.handle = IntPtr.Zero;
            return(num == 0);
        }