I'm trying to run Tomcat 4.0 under IIS 5.0 on my Windows 2000 Pro machine. 
When I run startup.bat, I get the following error message:

Catalina.start: LifecycleException:  null.open:  java.net.BindException: 
Address in use: JVM_Bind
LifecycleException:  null.open:  java.net.BindException: Address in use: 
JVM_Bind
        at org.apache.catalina.connector.http.HttpConnector.initialize
(HttpConnector.java:1116)
        at org.apache.catalina.core.StandardService.initialize
(StandardService.java:454)
        at org.apache.catalina.core.StandardServer.initialize
(StandardServer.java:552)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:775)
        at org.apache.catalina.startup.Catalina.execute(Catalina.java:681)
        at org.apache.catalina.startup.Catalina.process(Catalina.java:179)
        at java.lang.reflect.Method.invoke(Native Method)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243)
----- Root Cause -----
java.net.BindException: Address in use: JVM_Bind
        at java.net.PlainSocketImpl.socketBind(Native Method)
        at java.net.PlainSocketImpl.bind(Unknown Source)
        at java.net.ServerSocket.<init>(Unknown Source)
        at java.net.ServerSocket.<init>(Unknown Source)
        at org.apache.catalina.net.DefaultServerSocketFactory.createSocket
(DefaultServerSocketFactory.java:118)
        at org.apache.catalina.connector.http.HttpConnector.open
(HttpConnector.java:946)
        at org.apache.catalina.connector.http.HttpConnector.initialize
(HttpConnector.java:1114)
        at org.apache.catalina.core.StandardService.initialize
(StandardService.java:454)
        at org.apache.catalina.core.StandardServer.initialize
(StandardServer.java:552)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:775)
        at org.apache.catalina.startup.Catalina.execute(Catalina.java:681)
        at org.apache.catalina.startup.Catalina.process(Catalina.java:179)
        at java.lang.reflect.Method.invoke(Native Method)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243)


I believe I've set all the environmental variables properly. I tried 
changing Tomcat's port in the server.xml file. I'm pretty lost here.

Thanks for any help in advance-
--Andrew Badera