JDBC realm doesn't work with Tomcat 4.0 + IIS + isapi-redirector

[Torsten Trzeciak]

Hi
I have a struts application with security constraints (JDBC realm).
This works fine with Tomcat , Tomcat + Apache. But IIS 5.0 + Win 2000 +
Tomcat 4.0 doesn't work.
 
Why?