ocr: Figure 1 Filler, Notifications and Data: Structures Notification Type Explanations patas Structure notlicationype) (prNotilficatios) SANOTIFY AUTHENTICATION The server. 183 authenticating, an tnooning HIPALTERLAUTHENT user This happens pce per sesgon. SFNOTIFYEND_OFJREQUEST The server Just finished procesgiE the request. Not used Note that Be session tas thes esent maystill be open becnuse al the HTTP KeepAlive connection option Chis nutitication IS mainly for cleanup of anyreguestspecliecdata used by your filter. SENOTIFYREAD_RAW_DATA The serveri 18 reading raw data trom the HTTP_FILTER RAW_D ...