public void Copy(WindowsServiceElement from) { if (this.IsReadOnly()) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ConfigurationErrorsException(System.ServiceModel.SR.GetString("ConfigReadOnly"))); } if (from == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("from"); } this.AllowAnonymousLogons = from.AllowAnonymousLogons; this.IncludeWindowsGroups = from.IncludeWindowsGroups; }