Index: U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/Compiler.java
===================================================================
--- U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/Compiler.java	(revision 2144)
+++ U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/Compiler.java	(working copy)
@@ -31,7 +31,6 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
-import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
@@ -893,7 +892,7 @@
         this.packager.setRules(conditions);        
     }
     
-    public Map<String, DynamicVariable> getDynamicVariables()
+    public Map<String, List<DynamicVariable>> getDynamicVariables()
     {
         return this.packager.getDynamicVariables();
     }
@@ -899,7 +898,7 @@
     }
     
     
-    public void setDynamicVariables(Map<String, DynamicVariable> dynamicvariables)
+    public void setDynamicVariables(Map<String, List<DynamicVariable>> dynamicvariables)
     {
         this.packager.setDynamicVariables(dynamicvariables);
     }
Index: U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/CompilerConfig.java
===================================================================
--- U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/CompilerConfig.java	(revision 2144)
+++ U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/CompilerConfig.java	(working copy)
@@ -39,7 +39,6 @@
 import com.izforge.izpack.rules.Condition;
 import com.izforge.izpack.rules.RulesEngine;
 import com.izforge.izpack.util.Debug;
-import com.izforge.izpack.util.Log;
 import com.izforge.izpack.util.OsConstraint;
 import com.izforge.izpack.util.VariableSubstitutor;
 import net.n3.nanoxml.IXMLParser;
@@ -1605,7 +1604,7 @@
         XMLElement root = data.getFirstChildNamed("dynamicvariables");
         if (root == null) return;
 
-        Map<String, DynamicVariable> dynamicvariables = compiler.getDynamicVariables();
+        Map<String, List<DynamicVariable>> dynamicvariables = compiler.getDynamicVariables();
 
         Iterator<XMLElement> iter = root.getChildrenNamed("variable").iterator();
         while (iter.hasNext())
@@ -1614,8 +1613,13 @@
             String name = requireAttribute(var, "name");
             String value = requireAttribute(var, "value");
             String conditionid = var.getAttribute("condition");
-            if (dynamicvariables.containsKey(name))
-                parseWarn(var, "DynamicVariable '" + name + "' being overwritten");
+            List<DynamicVariable> dynvars = null;
+            if (dynamicvariables.containsKey(name)) {
+                dynvars = dynamicvariables.get(name);
+            } else {
+                dynvars = new ArrayList<DynamicVariable>(); 
+                dynamicvariables.put(name, dynvars);
+            }
             DynamicVariable dynvar = new DynamicVariable();
             dynvar.setName(name);
             dynvar.setValue(value);
@@ -1620,7 +1624,10 @@
             dynvar.setName(name);
             dynvar.setValue(value);
             dynvar.setConditionid(conditionid);
-            dynamicvariables.put(name, dynvar);
+            if (dynvars.remove(dynvar)) {
+                parseWarn(var, "DynamicVariable '" + name + "' being overwritten");
+            }
+            dynvars.add(dynvar);
         }
         notifyCompilerListener("addDynamicVariables", CompilerListener.END, data);
     }
Index: U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/DynamicVariable.java
===================================================================
--- U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/DynamicVariable.java	(revision 2144)
+++ U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/DynamicVariable.java	(working copy)
@@ -89,6 +89,22 @@
         this.conditionid = conditionid;
     }
     
-    
+    public boolean equals(Object obj)
+    {
+        if (obj == null) { return false; }
+
+        if (getClass() != obj.getClass()) { return false; }
+
+        DynamicVariable other = (DynamicVariable) obj;
+        return (name != null ? name.equals(other.name) : other.name == null) && conditionid != null ? conditionid
+                .equals(other.conditionid)
+                : other.conditionid == null;
+    }
+
+    public int hashCode()
+    {
+        return (name != null ? name.hashCode() : 0)
+                ^ (conditionid != null ? conditionid.hashCode() : 0);
+    }
 }
 
Index: U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/IPackager.java
===================================================================
--- U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/IPackager.java	(revision 2144)
+++ U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/IPackager.java	(working copy)
@@ -199,7 +199,7 @@
      * Returns a map of dynamically refreshed variables
      * @return the map
      */
-    public abstract Map<String, DynamicVariable> getDynamicVariables();
+    public abstract Map<String, List<DynamicVariable>> getDynamicVariables();
     
     /**
      * 
@@ -205,5 +205,5 @@
      * 
      * @param dynamicvariables
      */
-    public abstract void setDynamicVariables(Map<String, DynamicVariable> dynamicvariables);
+    public abstract void setDynamicVariables(Map<String, List<DynamicVariable>> dynamicvariables);
 }
Index: U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/PackagerBase.java
===================================================================
--- U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/PackagerBase.java	(revision 2144)
+++ U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/compiler/PackagerBase.java	(working copy)
@@ -89,7 +89,7 @@
     protected Map<String, Condition> rules = new HashMap<String, Condition>();
     
     /** dynamic variables */
-    protected Map<String, DynamicVariable> dynamicvariables = new HashMap<String, DynamicVariable>();
+    protected Map<String, List<DynamicVariable>> dynamicvariables = new HashMap<String, List<DynamicVariable>>();
 
     /** Jar file URLs who's contents will be copied into the installer. */
     protected Set<Object[]> includedJarURLs = new HashSet<Object[]>();
@@ -349,7 +349,7 @@
     /**
      * @return the dynamicvariables
      */
-    public Map<String, DynamicVariable> getDynamicVariables()
+    public Map<String, List<DynamicVariable>> getDynamicVariables()
     {
         return this.dynamicvariables;
     }
@@ -358,7 +358,7 @@
     /**
      * @param dynamicvariables the dynamicvariables to set
      */
-    public void setDynamicVariables(Map<String, DynamicVariable> dynamicvariables)
+    public void setDynamicVariables(Map<String, List<DynamicVariable>> dynamicvariables)
     {
         this.dynamicvariables = dynamicvariables;
     }
Index: U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/installer/InstallerFrame.java
===================================================================
--- U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/installer/InstallerFrame.java	(revision 2144)
+++ U:/workspaces/work2/IzPack/src/lib/com/izforge/izpack/installer/InstallerFrame.java	(working copy)
@@ -233,7 +233,7 @@
      */
     private static final String CUSTOM_ICONS_RESOURCEFILE = "customicons.xml";
     
-    private Map<String, DynamicVariable> dynamicvariables;
+    private Map<String, List<DynamicVariable>> dynamicvariables;
     private VariableSubstitutor substitutor;
     private Debugger debugger;
 
@@ -283,23 +283,28 @@
      */
     private void refreshDynamicVariables() {        
         if (dynamicvariables != null) {
-            Iterator<String> iter = dynamicvariables.keySet().iterator();
-            while (iter.hasNext()) {
-                String dynvarname = iter.next();
-                DynamicVariable dynvar = dynamicvariables.get(dynvarname);
-                boolean refresh = false;
-                if (dynvar.getConditionid() != null) {
-                    if ((rules != null) &&  rules.isConditionTrue(dynvar.getConditionid())) {
-                        // condition for this rule is true
-                        refresh = true;
-                    }                    
-                }
-                else {
-                    refresh = true;
+            for (String dynvarname: dynamicvariables.keySet()) {
+                List<DynamicVariable> dynvars = dynamicvariables.get(dynvarname);
+                DynamicVariable dynvarToUse = null;
+                for (DynamicVariable dynvar : dynvars)
+                {
+                    if (dynvar.getConditionid() != null)
+                    {
+                        if ((rules != null) && rules.isConditionTrue(dynvar.getConditionid()))
+                        {
+                            // condition for this rule is true
+                            dynvarToUse = dynvar;
+                            break;
+                        }
+                    }
+                    else
+                    {
+                        dynvarToUse = dynvar;
+                    }
                 }
-                if (refresh) {
-                    String newvalue = substitutor.substitute(dynvar.getValue(), null);
-                    installdata.variables.setProperty(dynvar.getName(), newvalue);
+                if (dynvarToUse != null) {
+                    String newvalue = substitutor.substitute(dynvarToUse.getValue(), null);
+                    installdata.variables.setProperty(dynvarToUse.getName(), newvalue);
                 }
             }
         }
@@ -314,7 +319,7 @@
         try {
             InputStream in = InstallerFrame.class.getResourceAsStream("/dynvariables");
             ObjectInputStream objIn = new ObjectInputStream(in); 
-            dynamicvariables = (Map<String, DynamicVariable>) objIn.readObject();
+            dynamicvariables = (Map<String, List<DynamicVariable>>) objIn.readObject();
             objIn.close();
         }
         catch (Exception e) {