DOCUMENT:Q188343 08-MAY-2002 [iis] TITLE :ISAPI Filter Not Receiving SF_NOTIFY_SEND_RAW_DATA with Proxy PRODUCT :Internet Information Server PROD/VER:winnt:4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server version 4.0 ------------------------------------------------------------------------------- SYMPTOMS ======== ISAPI SF_NOTIFY_SEND_RAW_DATA notifications are no longer received by ISAPI raw filter after modifying the CbInData value in the HTTP_RAW_DATA_FILTER structure after first notification. This behavior has been noted when using the above technique in ISAPI raw data filters running in conjunction with Proxy Server and can occur with other ISAPI filters. RESOLUTION ========== A supported fix is now available from Microsoft, but it is only intended to correct the problem described in this article and should be applied only to systems experiencing this specific problem. This fix may receive additional testing at a later time, to further ensure product quality. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Windows NT service pack that contains this fix. To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS NOTE: In special cases, charges that are normally incurred for support calls may be canceled, if a Microsoft Support Professional determines that a specific update will resolve your problem. Normal support costs will apply to additional support questions and issues that do not qualify for the specific update in question. The English version of this fix should have the following file attributes or later: Date Time Size File Name Platform ------------------------------------------------------------- 11/05/98 04:42p 27,696 Admwprox.dll (x86) 11/05/98 04:44p 325,856 Asp.dll (x86) 11/05/98 04:42p 43,456 Coadmin.dll (x86) 11/05/98 04:44p 11,168 Ftpctrs2.dll (x86) 11/05/98 04:44p 81,376 Ftpsvc2.dll (x86) 11/05/98 04:42p 10,224 Iisfecnv.dll (x86) 11/05/98 04:42p 61,920 Iislog.dll (x86) 11/05/98 04:43p 16,848 Infoadmn.dll (x86) 11/05/98 04:42p 184,192 Infocomm.dll (x86) 11/05/98 04:43p 9,584 Infoctrs.dll (x86) 11/05/98 04:42p 47,936 Isatq.dll (x86) 11/05/98 04:42p 29,520 Iscomlog.dll (x86) 11/05/98 04:42p 13,856 Lonsint.dll (x86) 11/05/98 04:42p 8,336 Lonsiw95.dll (x86) 11/05/98 04:42p 71,232 Metadata.dll (x86) 11/05/98 04:42p 7,488 Rpcref.dll (x86) 11/05/98 04:43p 18,032 Svcext.dll (x86) 11/05/98 04:43p 14,752 W3ctrs.dll (x86) 11/05/98 04:43p 227,392 W3svc.dll (x86) 11/05/98 04:43p 55,456 Wam.dll (x86) 11/05/98 04:42p 49,424 Admwprox.dll (Alpha) 11/05/98 04:44p 545,552 Asp.dll (Alpha) 11/05/98 04:42p 77,072 Coadmin.dll (Alpha) 11/05/98 04:43p 17,168 Ftpctrs2.dll (Alpha) 11/05/98 04:43p 126,224 Ftpsvc2.dll (Alpha) 11/05/98 04:42p 17,680 Iisfecnv.dll (Alpha) 11/05/98 04:42p 110,864 Iislog.dll (Alpha) 11/05/98 04:42p 25,872 Infoadmn.dll (Alpha) 11/05/98 04:42p 302,864 Infocomm.dll (Alpha) 11/05/98 04:42p 15,120 Infoctrs.dll (Alpha) 11/05/98 04:42p 82,704 Isatq.dll (Alpha) 11/05/98 04:42p 45,840 Iscomlog.dll (Alpha) 11/05/98 04:42p 23,312 Lonsint.dll (Alpha) 11/05/98 04:42p 13,584 Lonsiw95.dll (Alpha) 11/05/98 04:42p 131,856 Metadata.dll (Alpha) 11/05/98 04:42p 12,048 Rpcref.dll (Alpha) 11/05/98 04:42p 29,456 Svcext.dll (Alpha) 11/05/98 04:43p 21,264 W3ctrs.dll (Alpha) 11/05/98 04:43p 381,200 W3svc.dll (Alpha) 11/05/98 04:43p 92,944 Wam.dll (Alpha) NOTE: The IIS 4.0 version of this hotfix must be installed over Windows NT 4.0 Service Pack 4. This hotfix has been posted to the following Internet location as Fltrfixi.exe (x86) and Fltrfixa.exe (Alpha): ftp://ftp.microsoft.com/bussys/iis/iis-public/fixes/usa/fltr-fix/ STATUS ====== Microsoft has confirmed this to be a problem in Internet Information Server version 4.0. Additional query words: ====================================================================== Keywords : Technology : kbiisSearch kbiis400 Version : winnt:4.0 Hardware : ALPHA x86 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.