Help needed with ISAPI filter on IIS 6.0

311852 has been yanked. It was published before IIS6 RTM and contains
technically inaccurate information relative to the RTM product. Its
replacement is being written right now.

You will need to debug why the ISAPI Filter is not working.

First make sure the ISAPI Filter DLL is even loaded by IIS. Make sure to
configure the ISAPI Filter via the UI and then make a request to the
containing website. If this succeeds, your filter should be loaded in
inetinfo.exe in IIS5 Compatibility Mode. If this fails, either with a hang
or with a 503 Service Unavailable, then check the event log for more info.

After you are certain that the ISAPI Filter DLL is loaded by IIS and
running, then you'll need to set a breakpoint on the HttpFilterProc function
and walk through it. Either that, or describe what your filter is supposed
to do (and how it is implemented). Since ISAPI Filter implementation
completely changed between IIS5 and IIS6, you may either be relying on
incorrect behavior, or it may be an IIS6 bug.

--
//David
IIS
This posting is provided "AS IS" with no warranties, and confers no rights.
//
"Ganesh Anekar [MSFT]" <Ganesh.TakeThisOut@online.microsoft.com> wrote in message
news:%23pL8rwQaEHA.3596@tk2msftngp13.phx.gbl...
Hello Amol,

Take a look this KB article:
311852 Information about ISAPI filters with SF_NOTIFY_READ_RAW_DATA in IIS
6.0
<a style='text-decoration: underline;' href="http://support.microsoft.com/?id=311852" target="_blank">http://support.microsoft.com/?id=311852</a>

Also check the event logs and httperr logs.

You could use IISSTATE to get a memory dump to analyze it further.

HTH,
--
Ganesh Anekar
Microsoft Developer Support
Internet Information Server
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"Amol" <amoltavkar.TakeThisOut@gmail.com> wrote in message
news:9960f0cd.0407130742.40468792@posting.google.com...
 > Hi,
 >
 > I have an ISAPI filter that works fine with IIS 5.0. However when I
 > try to employ the same filter on IIS 6.0 following are the
 > observations:
 > 1. Filter loads up correctly
 > 2. Whenever I try to access pages on this web server, the pages are
 > NOT loaded in the browser and consequently the connection times out.
 >
 > I am running IIS 6.0 in IIS 5.0 isolation mode. What changes should I
 > make in the filter for this to work? I guess its something to do with
 > critical sections (not sure).
 >
 > Please help.
 > Regards,
 > Amol<!-- ~MESSAGE_AFTER~ -->
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