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From George Sexton <>
Subject Problem with ISAPI Redirector
Date Sat, 11 Apr 2009 15:02:02 GMT
I posted this a couple of days ago on tomcat-user but did not get any 

I'm having a problem using the ISAPI redirector. I making the request,
and I get back a 400 Bad Request response. I've gone through the
troubleshooting doc, and the howto for the redirector and come up blank.
I've also searched the net for the issue.

I'm using version 1.2.27 of the ISAPI redirector (but 1.2.28 does the
same thing) and Apache Tomcat 5.5.27.

Using the IIS administration program, I created a jakarta virtual
directory and made it executable. The path points to the directory
containing the isapi_redirect.dll.

Added the isapi_redirect.dll to the ISAPI Filters for the desired
virtual host. Added the isapi_redirect.dll to the list of allowed web
extensions. I'm not getting a Green Up-Arrow on the ISAPI redirect
filters page. I've done the following:

Made the appropriate registry entries. I'm able to get the log file, so
I'm confident the registry entries are good.

Set the permissions so that the user the web service runs as has read
permissions to the configuration directories and write permissions to
the log directory.

Created the


Created the


Configured the server.xml:

<Server port="8006" shutdown="SHUTDOWN">
     <Service name="Catalina">
	<Connector port="7080" />
         <Connector port="8010" protocol="AJP/1.3" />
         <Engine name="Catalina" defaultHost="localhost">
             <Host name="localhost" appBase="webapps">
                 <Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_log." suffix=".txt"

I've set the level for the isapi log file to debug.

When I make a request for the page: I get the following log output:

You can see that it's finding the configuration files, and it's mapping
the request into the worker but I'm getting a 400 bad request.

About the only thing I notice is that the server has multiple
application pools set up.

At this point I'm stumped. Does anyone have any ideas on what I can try

George Sexton
MH Software, Inc.
Voice: +1 303 438 9585

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