jawin and Tomcat 5

My standalone Java application works fine using jawin (with
-Djava.library.path=...), but I cannot get the same code working from JSP
web application hosted by Tomcat 5.

It looks like it cannot find jawin.dll. I am getting

java.lang.NoClassDefFoundError
 MyBeans.JavaNativeBridge.<init>(JavaNativeBridge.java:134)
 org.apache.jsp.index_jsp._jspService(org.apache.jsp.index_jsp:50)

The index.jsp uses:
<%@ page language="java" contentType="text/html;charset=ISO-8859-1"
import="MyBeans.*"%>
<jsp:useBean id="oJNB" scope="session" class="MyBeans.JavaNativeBridge" />
<%... some JSP stuff calling oJNB methods ... %>

Is there anything special that needs to be don in Tomcat to get it working?