All, We're using Tomcat and struts for development and have installed the IIS redirector without a hitch on 3 machines. When I went to install on another machine, I couldn't get it to work. Symptom is tomcat getting called for the /jakarta/isapi_redirect.dll. Since I have a working system, I started to compare the set-up and could find no difference. Reinstalled a vanilla Tomcat 3.2.1 and dll from apache.org. Still didn't work. Got the source code to the redirector and added some debug code. Now I have more information about what's going wrong, but don't know why. On the working machine I see the filter code in the dll recognises my request /xyz and figures out that it should go to Tomcat to serve it. Next thing I see, is it opening the connection to Tomcat and all is well. On the non-working machine it gets the request for /xyz, but then sees the request for /jakarta/isapi_redirect.dll also, and correctly returns next_in_chain (or whatever it's called) value. However, the TOMCAT headers that have been added by the filter have been 'lost' by the time it gets around to handle the original /xyz. The working machine is running IIS on NT4/SP5 and the broken machine is running IIS on NT4/SP6a. I see that the redirector has been tested on SP6a so that shouldn't be a problem, but the two IIS'es seem to be behaving differently. I can understand the IIS filter getting called for all requests, but why doesn't the working machine show this behaviour? Any clues? pb --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]