Hope this is useful

[Ermanno Iannacci]

I couldn't get Tomcat 3.1 serve jsp pages. The problem was jsdk (Java
Servlet Development Kit). I installed jsdk jar files as extensions: one of
the jsdk jars is "servlet.jar", same name of one of those packaged with
tomcat. After removed servlet.jar (so i think is older) from jre/bin/ext,
tomcat runs OK, and also the isapi_redirect does.

(pws 4.0 - win 98 se - tomcat 3.1 - jdk 1.2.2)