Index: /applications/editors/josm/plugins/opendata/modules/fr.datagouvfr/src/org/openstreetmap/josm/plugins/opendata/modules/fr/datagouvfr/DataGouvFrModule.java
===================================================================
--- /applications/editors/josm/plugins/opendata/modules/fr.datagouvfr/src/org/openstreetmap/josm/plugins/opendata/modules/fr/datagouvfr/DataGouvFrModule.java	(revision 29685)
+++ /applications/editors/josm/plugins/opendata/modules/fr.datagouvfr/src/org/openstreetmap/josm/plugins/opendata/modules/fr/datagouvfr/DataGouvFrModule.java	(revision 29686)
@@ -32,4 +32,5 @@
 import org.openstreetmap.josm.plugins.opendata.modules.fr.datagouvfr.datasets.transport.AeroportsHandler;
 import org.openstreetmap.josm.plugins.opendata.modules.fr.datagouvfr.datasets.transport.PassageNiveauHandler;
+import org.openstreetmap.josm.plugins.opendata.modules.fr.datagouvfr.datasets.transport.Route500Handler;
 
 public class DataGouvFrModule extends AbstractModule {
@@ -51,4 +52,5 @@
         handlers.add(InventaireForestierNationalHandler.class);
         handlers.add(AeroportsHandler.class);
+        handlers.add(Route500Handler.class);
     }
 }
Index: /applications/editors/josm/plugins/opendata/modules/fr.datagouvfr/src/org/openstreetmap/josm/plugins/opendata/modules/fr/datagouvfr/datasets/transport/Route500Handler.java
===================================================================
--- /applications/editors/josm/plugins/opendata/modules/fr.datagouvfr/src/org/openstreetmap/josm/plugins/opendata/modules/fr/datagouvfr/datasets/transport/Route500Handler.java	(revision 29686)
+++ /applications/editors/josm/plugins/opendata/modules/fr.datagouvfr/src/org/openstreetmap/josm/plugins/opendata/modules/fr/datagouvfr/datasets/transport/Route500Handler.java	(revision 29686)
@@ -0,0 +1,76 @@
+//    JOSM opendata plugin.
+//    Copyright (C) 2011-2012 Don-vip
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    This program is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU General Public License for more details.
+//
+//    You should have received a copy of the GNU General Public License
+//    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+package org.openstreetmap.josm.plugins.opendata.modules.fr.datagouvfr.datasets.transport;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.openstreetmap.josm.data.osm.DataSet;
+import org.openstreetmap.josm.plugins.opendata.core.datasets.fr.FrenchAdministrativeUnit;
+import org.openstreetmap.josm.plugins.opendata.modules.fr.datagouvfr.datasets.DataGouvDataSetHandler;
+import org.openstreetmap.josm.tools.Pair;
+
+public class Route500Handler extends DataGouvDataSetHandler {
+
+    private static final String OSMFR_PORTAL = "http://osm13.openstreetmap.fr/~cquest/route500/";
+    
+    private static final String ARCHIVE_PATTERN = "ROUTE500_1-1_SHP_LAMB93_D..._20..-..-..";
+
+    private static final String SHP_PATTERN = "(EMPRISE|NOEUD_FERRE|TRONCON_VOIE_FERREE|ZONE_OCCUPATION_SOL|"+
+            "COTE_FRONTIERE|TRONCON_HYDROGRAPHIQUE|COMMUNE|LIMITE_ADMINISTRATIVE|COMMUNICATION_RESTREINTE|NOEUD_COMMUNE|NOEUD_ROUTIER|TRONCON_ROUTE|AERODROME)";
+
+    public Route500Handler() {
+        super("572583");
+        setName("Route 500");
+        try {
+            setLocalPortalURL("http://professionnels.ign.fr/route500");
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public boolean acceptsFilename(String filename) {
+        return accepts7ZipFilename(filename, ARCHIVE_PATTERN)
+                || acceptsShpFilename(filename, SHP_PATTERN);
+    }
+
+    @Override
+    public void updateDataSet(DataSet ds) {
+        // TODO
+    }
+    
+    @Override
+    public List<Pair<String, URL>> getDataURLs() {
+        List<Pair<String, URL>> result = new ArrayList<Pair<String,URL>>();
+        try {
+            for (FrenchAdministrativeUnit dpt : FrenchAdministrativeUnit.allDepartments) {
+                if (dpt.getCode().startsWith("0")) { // Skip DOM/TOM
+                    result.add(getRoute500URL(dpt.getCode(), dpt.getName()));
+                }
+            }
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        }
+        return result;
+    }
+
+    private Pair<String, URL> getRoute500URL(String code, String name) throws MalformedURLException {
+        return new Pair<String, URL>(name, new URL(OSMFR_PORTAL+"ROUTE500_1-1_SHP_LAMB93_D"+code+"_2012-11-21.7z"));
+    }
+}
Index: /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/datasets/AbstractDataSetHandler.java
===================================================================
--- /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/datasets/AbstractDataSetHandler.java	(revision 29685)
+++ /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/datasets/AbstractDataSetHandler.java	(revision 29686)
@@ -159,4 +159,8 @@
 	}
 
+    protected final boolean accepts7ZipFilename(String filename, String ... expected) {
+        return acceptsFilename(filename, expected, SEVENZIP_EXT);
+    }
+
 	protected final boolean acceptsCsvKmzFilename(String filename, String ... expected) {
 		return acceptsFilename(filename, expected, CSV_EXT, KMZ_EXT);
Index: /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/io/NetworkReader.java
===================================================================
--- /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/io/NetworkReader.java	(revision 29685)
+++ /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/io/NetworkReader.java	(revision 29686)
@@ -30,4 +30,6 @@
 import org.openstreetmap.josm.plugins.opendata.core.OdConstants;
 import org.openstreetmap.josm.plugins.opendata.core.datasets.AbstractDataSetHandler;
+import org.openstreetmap.josm.plugins.opendata.core.io.archive.ArchiveReader;
+import org.openstreetmap.josm.plugins.opendata.core.io.archive.SevenZipReader;
 import org.openstreetmap.josm.plugins.opendata.core.io.archive.ZipReader;
 import org.openstreetmap.josm.plugins.opendata.core.io.geographic.GmlReader;
@@ -84,4 +86,6 @@
     	if (contentType.startsWith("application/zip")) {
     		return ZipReader.class;
+        } else if (contentType.startsWith("application/x-7z-compressed")) {
+            return SevenZipReader.class;
     	} else if (contentType.startsWith("application/vnd.ms-excel")) {
     		return XlsReader.class;
@@ -122,4 +126,6 @@
     	} else if (filename.endsWith("."+ZIP_EXT)) {
     		return ZipReader.class;
+        } else if (filename.endsWith("."+SEVENZIP_EXT)) {
+            return SevenZipReader.class;
     	} else {
     		return null;
@@ -151,6 +157,7 @@
             }
             instance = progressMonitor.createSubTaskMonitor(ProgressMonitor.ALL_TICKS, false);
-            if (readerClass.equals(ZipReader.class)) {
-            	ZipReader zipReader = new ZipReader(in, handler, promptUser);
+            if (readerClass.equals(ZipReader.class) || readerClass.equals(SevenZipReader.class)) {
+            	ArchiveReader zipReader = readerClass.equals(ZipReader.class) 
+            	        ? new ZipReader(in, handler, promptUser) : new SevenZipReader(in, handler, promptUser);
             	DataSet ds = zipReader.parseDoc(instance);
             	file = zipReader.getReadFile();