ISAPI Filter Not Receiving SF_NOTIFY_SEND_RAW_DATA with Proxy

ID: Q188343

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 that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific 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 on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

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 :
Version : winnt:4.0
Platform : winnt
Issue type : kbbug