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WebTrends HTTP Post plug-in

Problem with IIS6 and ISAPI filter

8:38 am on Aug 20, 2009 (gmt 0)

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joined:Jan 21, 2009
posts: 15
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Hi all,

I'm not sure if this post is in the right topic, but I'll put it here because it is related to WebTrends.

Anyway, I tried to install WebTrends HTTP POST plug-in, and followed the steps found in
WebTrends Advanced Configuration Guide, chapter 22 - WebTrends Post Plug-In.

In this manual, step 4 of "Installing an ISAPI Filter" installation says:

"Select the Internet Information Services tab. The Internet Information Services dialog box opens
with the default Master Properties field set to “WWW Service."

There is no such option in IIS 6, while the manual claims that this filter can be installed on both IIS 5 and IIS 6.
I tried and succeed to install this filter on IIS 5, but no success with IIS 6.
I applied this filter on IIS 6 by selecting properties for "Web Sites" node > ISAPI Filters tab > Add... etc.
After IIS restart, this filter still has a red arrow down for status.

I found a MS article [support.microsoft.com] which claims that ISAPI filters designed for IIS 5 might not work for IIS 6,
and that solution is to either get a new version of filter :) or force IIS 6 to run in some IIS 5 compatible mode,
which is not an option for me, because I want to apply this filter on live server where my web site is.

Has anyone tried this WT HTTP POST plug-in on IIS 6 ?

Thanks in advance.

12:09 am on Aug 21, 2009 (gmt 0)

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WebmasterWorld Senior Member 10+ Year Member

joined:Jan 14, 2004
votes: 1

Have you looked on the WebTrends support site?

I found this, for starters. It seems pretty clear to me that this is your choice, period. Restarting IIS not not a big deal. On the other hand, writing ISAPI plugins are not a big deal either. What exactly are you trying to accomplish? Just the handling of POSTs?

The KB says:

Problem: Post Plug in always shows as a red down arrow in IIS 6

The Webtrends Post Plugin requires IIS 6 to run in IIS 5.0 Isolation mode.

To configure IIS 6 to run in IIS 5.0 Isolation mode, follow the below instructions:

Right-click the "Web Sites" folder, click Properties

Select the "Service" tab.

Under “Isolation mode, put a check box in "Run WWW service in IIS 5.0 Isolation Mode"

Restart IIS

3:18 pm on Aug 21, 2009 (gmt 0)

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joined:Jan 21, 2009
posts: 15
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Yes, I posted the same question on WebTrends forum, but still no answer. I found that, if you run IIS 6 in IIS 5.0 isolation mode you lose:
- Web gardens
- Health detection
- Processor affinity
- Process recycling
- Rapid fail protection

as stated here [tech-faq.com].

So practically I think there is no harm for existing applications on IIS 6, to switch to IIS 5.0 isolation mode.

Anyway, my attention is to to install WT HTTP POST plug-in in order to catch web page parameters sent via POST method and have them in my IIS log files.