diff --git a/addons/web/static/src/js/compatibility.js b/addons/web/static/src/js/compatibility.js
new file mode 100644
index 00000000000..4c0a4538bc1
--- /dev/null
+++ b/addons/web/static/src/js/compatibility.js
@@ -0,0 +1,225 @@
+// ------------------------------------------------------------------------------
+// Compatibility with Odoo v8.  
+// 
+// With the new module system, no global variable can (and should) be accessed
+// in openerp.  This file exports everything, to mimic the previous global 
+// namespace structure.  This is only supposed to be used by 3rd parties to 
+// facilitate migration.  Odoo addons should not use the 'openerp' variable at 
+// all.
+// ------------------------------------------------------------------------------
+odoo.define('web.compatibility', [
+    'web.ActionManager',
+    'web.core', 
+    'web.data',
+    'web.Dialog', 
+    'web.FavoriteMenu',
+    'web.form_common', 
+    'web.form_relational',
+    'web.form_widgets',
+    'web.formats',
+    'web.FormView',
+    'web.framework',
+    'web.ListView',
+    'web.Menu', 
+    'web.Model', 
+    'web.pyeval',
+    'web.Registry',
+    'web.SearchView',
+    'web.session',
+    'web.Sidebar',
+    'web.SystrayMenu', 
+    'web.time',
+    'web.UserMenu', 
+    'web.utils',
+    'web.View',
+    'web.ViewManager',
+    'web.WebClient', 
+    'web.Widget', 
+    ], 
+    function (require) {
+"use strict";
+
+var ActionManager = require('web.ActionManager');
+var core = require('web.core');
+var data = require('web.data');
+var Dialog = require('web.Dialog');
+var FavoriteMenu = require('web.FavoriteMenu');
+var form_common = require('web.form_common');
+var formats = require('web.formats');
+var FormView = require('web.FormView');
+var form_relational = require('web.form_relational'); // necessary
+var form_widgets = require('web.form_widgets'); // necessary
+var framework = require('web.framework');
+var ListView = require('web.ListView');
+var Menu = require('web.Menu');
+var Model = require('web.Model');
+var pyeval = require('web.pyeval');
+var Registry = require('web.Registry');
+var SearchView = require('web.SearchView');
+var session = require('web.session');
+var Sidebar = require('web.Sidebar');
+var SystrayMenu = require('web.SystrayMenu');
+var time = require('web.time');
+var UserMenu = require('web.UserMenu');
+var utils = require('web.utils');
+var View = require('web.View');
+var ViewManager = require('web.ViewManager');
+var WebClient = require('web.WebClient');
+var Widget = require('web.Widget');
+
+var client_started = $.Deferred();
+
+var OldRegistry = Registry.extend({
+    add: function (key, path) {
+    },
+    get_object: function (key) {
+        return get_object(this.map[key]);
+    },
+});
+
+window.openerp = window.openerp || {};
+
+$.Mutex = utils.Mutex;
+openerp._session_id = "instance0";
+openerp._t = core._t;
+openerp.get_cookie = utils.get_cookie;
+
+openerp.qweb = core.qweb;
+openerp.session = session;
+
+openerp.web = openerp.web || {};
+openerp.web._t = core._t;
+openerp.web._lt = core._lt;
+
+openerp.web.ActionManager = ActionManager;
+openerp.web.auto_str_to_date = time.auto_str_to_date;
+openerp.web.blockUI = framework.blockUI;
+openerp.web.BufferedDataSet = data.BufferedDataSet;
+openerp.web.bus = core.bus;
+openerp.web.Class = core.Class;
+openerp.web.client_actions = make_old_registry(core.action_registry);
+openerp.web.CompoundContext = data.CompoundContext;
+openerp.web.CompoundDomain = data.CompoundDomain;
+openerp.web.DataSetSearch = data.DataSetSearch;
+openerp.web.DataSet = data.DataSet;
+openerp.web.date_to_str = time.date_to_str;
+openerp.web.Dialog = Dialog;
+openerp.web.DropMisordered = utils.DropMisordered;
+
+openerp.web.form = openerp.web.form || {};
+openerp.web.form.AbstractField = form_common.AbstractField;
+openerp.web.form.compute_domain = data.compute_domain;
+openerp.web.form.DefaultFieldManager = form_common.DefaultFieldManager;
+openerp.web.form.FieldChar = core.form_widget_registry.get('char');
+openerp.web.form.FieldFloat = core.form_widget_registry.get('float');
+openerp.web.form.FieldStatus = core.form_widget_registry.get('statusbar');
+openerp.web.form.FieldMany2ManyTags = core.form_widget_registry.get('many2many_tags');
+openerp.web.form.FieldMany2One = core.form_widget_registry.get('many2one');
+openerp.web.form.FormWidget = form_common.FormWidget;
+openerp.web.form.tags = make_old_registry(core.form_tag_registry);
+openerp.web.form.widgets = make_old_registry(core.form_widget_registry);
+
+openerp.web.format_value = formats.format_value;
+openerp.web.FormView = FormView;
+
+openerp.web.json_node_to_xml = utils.json_node_to_xml;
+
+openerp.web.ListView = ListView;
+openerp.web.Menu = Menu;
+openerp.web.Model = Model;
+openerp.web.normalize_format = time.strftime_to_moment_format;
+openerp.web.py_eval = pyeval.py_eval;
+openerp.web.pyeval = pyeval;
+openerp.web.qweb = core.qweb;
+
+openerp.web.Registry = OldRegistry;
+
+openerp.web.search = {};
+openerp.web.search.FavoriteMenu = FavoriteMenu;
+openerp.web.SearchView = SearchView;
+openerp.web.Sidebar = Sidebar;
+openerp.web.str_to_date = time.str_to_date;
+openerp.web.str_to_datetime = time.str_to_datetime;
+openerp.web.SystrayItems = SystrayMenu.Items;
+openerp.web.unblockUI = framework.unblockUI;
+openerp.web.UserMenu = UserMenu;
+openerp.web.View = View;
+openerp.web.ViewManager = ViewManager;
+openerp.web.views = make_old_registry(core.view_registry);
+openerp.web.WebClient = WebClient;
+openerp.web.Widget = Widget;
+
+openerp.Widget = openerp.web.Widget;
+openerp.Widget.prototype.session = session;
+
+
+WebClient.include({
+    init: function () {
+        openerp.client = this;
+        openerp.webclient = this;
+        start_modules();
+        client_started.resolve();
+        this._super.apply(this, arguments);
+    },
+});
+
+
+function make_old_registry(registry) {
+    return {
+        add: function (key, path) {
+            client_started.done(function () {
+                registry.add(key, get_object(path));
+            });
+        },
+    };
+}
+function get_object(path) {
+    var object_match = openerp;
+    path = path.split('.');
+    // ignore first section
+    for(var i=1; i<path.length; ++i) {
+        object_match = object_match[path[i]];
+    }
+    return object_match;
+}
+
+/**
+ * OpenERP instance constructor
+ *
+ * @param {Array|String} modules list of modules to initialize
+ */
+var inited = false;
+function start_modules (modules) {
+    if (modules === undefined) {
+        modules = odoo._modules;
+    }
+    modules = _.without(modules, "web");
+    if (inited) {
+        throw new Error("OpenERP was already inited");
+    }
+    inited = true;
+    for(var i=0; i < modules.length; i++) {
+        var fct = openerp[modules[i]];
+        if (typeof(fct) === "function") {
+            openerp[modules[i]] = {};
+            for (var k in fct) {
+                openerp[modules[i]][k] = fct[k];
+            }
+            fct(openerp, openerp[modules[i]]);
+        }
+    }
+    openerp._modules = ['web'].concat(modules);
+    return openerp;
+};
+
+
+});
+
+odoo.define('mail.compatibility', ['mail.mail'], function (require) {
+var mail = require('mail.mail');
+return;
+window.openerp = window.openerp || {};
+openerp.mail = {};
+openerp.mail.Wall = mail.Wall;
+
+});