This property indicates whether the filter has registered to be notified of authentication events. If the value is TRUE, the filter will be notified when the server is initially authenticating the client. This property is one of the flags contained in the property FilterFlags, and should be considered read-only.
| Data type | Boolean |
| Default value | FALSE |
| Inheritance | Not inheritable |
This property is accessible at the following locations:
| Metabase Path | Key Type |
| /LM/W3SVC/Filters/Filter | IIsFilter |
| /LM/W3SVC/N/Filters/Filter | IIsFilter |
The following table lists additional information required only for code that uses the IIS Admin Base Object.
Note This property is a bitmask flag of the identifier MD_FILTER_FLAGS.
| Metabase identifier | MD_FILTER_FLAGS |
| Metabase bitmask identifier | MD_NOTIFY_AUTHENTICATION |
| Data type | DWORD_METADATA |
| User type | IIS_MD_UT_SERVER |
| Metabase bitmask value | 0x00002000 |