FilterFlags

The FilterFlags property contains flags that indicate which events the corresponding ISAPI filter has registered to be notified for. For more information, see ISAPI Filter Design Issues in the Platform SDK.

Important Note:
Because this property is internally configured by IIS, you should consider it to be read-only. Do not configure this property.

Schema Attributes

Attribute Name	Value
ADSI/WMI Data Type	DWORD
ABO Data Type	DWORD_METADATA
Schema Default	0
Internal Default	Not specified.
Upper Bound	0
Lower Bound	Not specified
Internal ID	2044
Friendly ID	MD_FILTER_FLAGS
Property Attributes	NO_ATTRIBUTES
User Type	IIS_MD_UT_SERVER

Configurable Locations

You can configure this property at the following locations in the IIS metabase.

Metabase Path	IIS Admin Object Type
/LM/W3SVC/Filters/filter_name /LM/W3SVC/n/Filters/filter_name	IIsFilter

Flags

Flag Name	NotifyAccessDenied
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if server sending HTTP error 401 to client.
Bitmask	2048 (hex 0x00000800)
Friendly Bitmask ID	MD_NOTIFY_ACCESS_DENIED
Internal ID	6259

Flag Name	NotifyAuthComplete
Versions Applicable	[IIS 6.0]
Description	Notify if the client's identity has been negotiated with the client. Because of the timing of this notification, the AUTH_USER server variable can be used to reliably obtain the identity of the user. If the value of this property is 1, then the filter registers for the SF_NOTIFY_AUTH_COMPLETE notification. If the value is 0, the filter does not.
Bitmask	67108864 (hex 0x04000000)
Friendly Bitmask ID	MD_NOTIFY_AUTH_COMPLETE
Internal ID	6290

Flag Name	NotifyAuthentication
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if performing authentication.
Bitmask	8192 (hex 0x00002000)
Friendly Bitmask ID	MD_NOTIFY_AUTHENTICATION
Internal ID	6257

Flag Name	NotifyEndOfNetSession
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if network session is ending.
Bitmask	256 (hex 0x00000100)
Friendly Bitmask ID	MD_NOTIFY_END_OF_NET_SESSION
Internal ID	6264

Flag Name	NotifyEndOfRequest
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if request has ended.
Bitmask	128 (hex 0x00000080)
Friendly Bitmask ID	MD_NOTIFY_END_OF_REQUEST
Internal ID	6263

Flag Name	NotifyLog
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if logging.
Bitmask	512 (hex 0x00000200)
Friendly Bitmask ID	MD_NOTIFY_LOG
Internal ID	6262

Flag Name	NotifyNonSecurePort
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify only if port nonsecure.
Bitmask	2 (hex 0x00000002)
Friendly Bitmask ID	MD_NOTIFY_NONSECURE_PORT
Internal ID	6254

Flag Name	NotifyOrderHigh
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	High priority for notifications.
Bitmask	524288 (hex 0x00080000)
Friendly Bitmask ID	MD_NOTIFY_ORDER_HIGH
Internal ID	6265

Flag Name	NotifyOrderLow
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Low priority for notifications.
Bitmask	131072 (hex 0x00020000)
Friendly Bitmask ID	MD_NOTIFY_ORDER_LOW
Internal ID	6267

Flag Name	NotifyOrderMedium
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Medium priority for notifications.
Bitmask	262144 (hex 0x00040000)
Friendly Bitmask ID	MD_NOTIFY_ORDER_MEDIUM
Internal ID	6266

Flag Name	NotifyPreProcHeaders
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if preprocessing headers.
Bitmask	16384 (hex 0x00004000)
Friendly Bitmask ID	MD_NOTIFY_PREPROC_HEADERS
Internal ID	6256

Flag Name	NotifyReadRawData
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if reading raw data.
Bitmask	32768 (hex 0x00008000)
Friendly Bitmask ID	MD_NOTIFY_READ_RAW_DATA
Internal ID	6255

Flag Name	NotifySecurePort
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify only if port secure.
Bitmask	1 (hex 0x00000001)
Friendly Bitmask ID	MD_NOTIFY_SECURE_PORT
Internal ID	6253

Flag Name	NotifySendRawData
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if sending raw data.
Bitmask	1024 (hex 0x00000400)
Friendly Bitmask ID	MD_NOTIFY_SEND_RAW_DATA
Internal ID	6261

Flag Name	NotifySendResponse
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if response being sent to client.
Bitmask	64 (hex 0x00000040)
Friendly Bitmask ID	MD_NOTIFY_SEND_RESPONSE
Internal ID	6260

Flag Name	NotifyUrlMap
Versions Applicable	[IIS 5.0][IIS 5.1][IIS 6.0]
Description	Notify if mapping URL to physical path.
Bitmask	4096 (hex 0x00001000)
Friendly Bitmask ID	MD_NOTIFY_URL_MAP
Internal ID	6258

Requirements

Client: Requires Windows XP Professional, Windows 2000 Professional, or Windows NT Workstation 4.0.

Server: Requires Windows Server 2003, Windows 2000 Server, or Windows NT Server 4.0.

Product: IIS

See Also