This property specifies whether the filter has registered to be notified of access denial messages. If the value is True, the filter will be notified when the server is about to send the 401 Access Denied error message. If the value is False, the filter ignores access denial messages. This property is one of the flags contained in the property FilterFlags, and should be considered read-only.
The following table describes this property:
| Data type | Boolean |
| Default value | Not applicable |
| Default inheritance | Not inheritable |
Accessible by IIS Admin Objects:
| IIsFilter |