diff --git a/build/main/hop.sh b/build/main/hop.sh
index 75ed96cc..90f81e35 100644
--- a/build/main/hop.sh
+++ b/build/main/hop.sh
@@ -2,25 +2,47 @@
 # Shell script for starting Helma with a JDK-like virtual machine.
 # Presumes that you have your classpath set.
 
-# set Helma TCP ports
-WEB_PORT=8080
-XMLRPC_PORT=8081
+# Set TCP ports for Helma servers
+# (comment/uncomment to de/activate)
+HTTP_PORT=8080
+#XMLRPC_PORT=8081
+#AJP13_PORT=8009
+#RMI_PORT=5050
+#HOP_HOME=/usr/local/helma
 
-# if JAVA_HOME variable is set, use it. Otherwise, java executable
+# if JAVA_HOME variable is set, use it. Otherwise, Java executable
 # must be contained in PATH variable.
-if [  "$JAVA_HOME" ]; then
-    JAVACMD="$JAVA_HOME"/bin/java
+if [ "$JAVA_HOME" ]; then
+   JAVACMD="$JAVA_HOME/bin/java"
 else
    JAVACMD=java
 fi
 
-# set classpath
-JARS=lib/helma.jar:lib/crimson.jar:lib/village.jar:lib/servlet.jar:lib/jetty.jar
-JARS=$JARS:lib/regexp.jar:lib/netcomponents.jar:lib/jimi.jar:lib/apache-dom.jar
-JARS=$JARS:lib/mail.jar:lib/activation.jar:lib/mysql.jar:lib/jdom.jar:lib/minml.jar
+# Set classpath
+JARS=lib/helma.jar:lib/xmlrpc.jar:lib/crimson.jar:lib/village.jar
+JARS=$JARS:lib/servlet.jar:lib/regexp.jar:lib/netcomponents.jar
+JARS=$JARS:lib/jimi.jar:lib/apache-dom.jar:lib/jdom.jar:lib/mail.jar
+JARS=$JARS:lib/activation.jar:lib/mysql.jar:lib/jetty.jar
 
-echo Starting Web server on port $WEB_PORT
-echo Starting XML-RPC server on port $XMLRPC_PORT
+if [ "$HTTP_PORT" ]; then
+   SWITCHES="$SWITCHES" -w $HTTP_PORT
+   echo Starting HTTP server on port $HTTP_PORT
+fi
+if [ "$XMLRPC_PORT" ]; then
+   SWITCHES="$SWITCHES" -x $XMLRPC_PORT
+   echo Starting XML-RPC server on port $XMLRPC_PORT
+fi
+if [ "$AJP13_PORT" ]; then
+   SWITCHES="$SWITCHES" -jk $AJP13_PORT
+   echo Starting AJP13 listener on port $AJP13_PORT
+fi
+if [ "$RMI_PORT" ]; then
+   SWITCHES="$SWITCHES" -p $RMI_PORT
+   echo Starting RMI server on port $RMI_PORT
+fi
+if [ "$HOP_HOME" ]; then
+   SWITCHES="$SWITCHES" -h $HOP_HOME
+fi
 
-# launch
-$JAVACMD -classpath $CLASSPATH:$JARS helma.main.Server -w $WEB_PORT -x $XMLRPC_PORT
+# Invoking the Java VM
+$JAVACMD -classpath $CLASSPATH:$JARS helma.main.Server $SWITCHES