diff --git a/shell/view/Shell.py b/shell/view/Shell.py
index 706281c9..6b9c3522 100644
--- a/shell/view/Shell.py
+++ b/shell/view/Shell.py
@@ -145,6 +145,7 @@ class Shell(gobject.GObject):
         home_model.notify_activity_launch(activity_id, bundle_id)
 
     def notify_launch_failure(self, activity_id):
+        home_model = self._model.get_home()
         home_model.notify_activity_launch_failed(activity_id)
 
     def start_activity(self, activity_type):
diff --git a/sugar-emulator b/sugar-emulator
index f6515346..a86e961b 100755
--- a/sugar-emulator
+++ b/sugar-emulator
@@ -30,6 +30,7 @@ import gtk
 import gobject
 
 from sugar import env
+from sugar import ltihooks
 
 def _get_display_number():
     """Find a free display number trying to connect to 6000+ ports"""
diff --git a/sugar/__init__.py b/sugar/__init__.py
index fe79b51b..d534a160 100644
--- a/sugar/__init__.py
+++ b/sugar/__init__.py
@@ -17,7 +17,15 @@
 # Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 # Boston, MA 02111-1307, USA.
 
+import os
+
+from sugar import ltihooks
+
 ZOOM_MESH = 0
 ZOOM_FRIENDS = 1
 ZOOM_HOME = 2
 ZOOM_ACTIVITY = 3
+
+print os.path.join(os.path.dirname(__file__), 'Makefile.am')
+if os.path.isfile(os.path.join(os.path.dirname(__file__), 'Makefile.am')):
+    ltihooks.install()
diff --git a/sugar/_sugarext.defs b/sugar/_sugarext.defs
index 2e07b61a..93c85c94 100644
--- a/sugar/_sugarext.defs
+++ b/sugar/_sugarext.defs
@@ -102,3 +102,27 @@
     '("const-char*" "property")
   )
 )
+
+(define-function get_prgname
+  (c-name "g_get_prgname")
+  (return-type "const-char*")
+)
+
+(define-function get_application_name
+  (c-name "g_get_application_name")
+  (return-type "const-char*")
+)
+
+(define-function set_prgname
+  (c-name "g_set_prgname")
+  (parameters
+    '("const-char*" "name")
+  )
+)
+
+(define-function set_application_name
+  (c-name "g_set_application_name")
+  (parameters
+    '("const-char*" "name")
+  )
+)
diff --git a/sugar/activity/activity.py b/sugar/activity/activity.py
index a45c8447..7f6ad9b4 100644
--- a/sugar/activity/activity.py
+++ b/sugar/activity/activity.py
@@ -39,6 +39,7 @@ from sugar.graphics.toolbutton import ToolButton
 from sugar.datastore import datastore
 from sugar import wm
 from sugar import profile
+from sugar import _sugarext
 
 class ActivityToolbar(gtk.Toolbar):
     def __init__(self, activity):
@@ -272,7 +273,7 @@ class Activity(Window, gtk.Container):
         return self._activity_id
 
     def get_service_name(self):
-        return os.environ['SUGAR_BUNDLE_SERVICE_NAME']
+        return _sugarext.get_prgname()
 
     def set_canvas(self, canvas):
         Window.set_canvas(self, canvas)
@@ -416,7 +417,7 @@ class Activity(Window, gtk.Container):
 def get_bundle_name():
     """Return the bundle name for the current process' bundle
     """
-    return os.environ['SUGAR_BUNDLE_NAME']
+    return _sugarext.get_application_name()
     
 def get_bundle_path():
     """Return the bundle path for the current process' bundle
diff --git a/sugar/activity/activityfactory.py b/sugar/activity/activityfactory.py
index f3e8bbe3..d1480b2d 100644
--- a/sugar/activity/activityfactory.py
+++ b/sugar/activity/activityfactory.py
@@ -129,9 +129,8 @@ class ActivityCreationHandler(gobject.GObject):
         logging.debug("Couldn't create activity %s (%s): %s" %
             (self._activity_handle.activity_id, self._service_name, err))
         self._shell.NotifyLaunchFailure(
-                    service_name, self.get_activity_id(),
-                    reply_handler=self._no_reply_handler,
-                    error_handler=self._notify_launch_failure_error_handler)
+                self.get_activity_id(), reply_handler=self._no_reply_handler,
+                error_handler=self._notify_launch_failure_error_handler)
 
 def create(service_name, activity_handle=None):
     """Create a new activity from its name."""
diff --git a/sugar/activity/activityfactoryservice.py b/sugar/activity/activityfactoryservice.py
index bc7c4e7b..8b1397f1 100644
--- a/sugar/activity/activityfactoryservice.py
+++ b/sugar/activity/activityfactoryservice.py
@@ -29,6 +29,7 @@ import dbus.glib
 from sugar.activity.bundle import Bundle
 from sugar.activity import activityhandle
 from sugar import logger
+from sugar import _sugarext
 
 # Work around for dbus mutex locking issue
 gobject.threads_init()
@@ -155,8 +156,9 @@ def run(bundle_path):
     gtk.icon_theme_get_default().append_search_path(bundle.get_icons_path())
 
     os.environ['SUGAR_BUNDLE_PATH'] = bundle_path
-    os.environ['SUGAR_BUNDLE_SERVICE_NAME'] = bundle.get_service_name()
-    os.environ['SUGAR_BUNDLE_NAME'] = bundle.get_name()
+
+    _sugarext.set_prgname(bundle.get_service_name())
+    _sugarext.set_application_name(bundle.get_name())
 
     factory = ActivityFactoryService(bundle.get_service_name(),
                                      bundle.get_class())
diff --git a/sugar/graphics/__init__.py b/sugar/graphics/__init__.py
index 2e8fe8ea..9f0a73fc 100644
--- a/sugar/graphics/__init__.py
+++ b/sugar/graphics/__init__.py
@@ -17,9 +17,4 @@
 # Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 # Boston, MA 02111-1307, USA.
 
-try:
-    from sugar._sugarext import AddressEntry
-except ImportError:
-    from sugar import ltihooks
-    from sugar._sugarext import AddressEntry
-
+from sugar._sugarext import AddressEntry
diff --git a/sugar/ltihooks.py b/sugar/ltihooks.py
index 1de3034f..d2e6b1f6 100644
--- a/sugar/ltihooks.py
+++ b/sugar/ltihooks.py
@@ -68,5 +68,3 @@ def install():
     importer.install()
 def uninstall():
     importer.uninstall()
-
-install()
diff --git a/sugar/objects/mime.py b/sugar/objects/mime.py
index f4dc1a39..8725700e 100644
--- a/sugar/objects/mime.py
+++ b/sugar/objects/mime.py
@@ -15,11 +15,7 @@
 # Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 # Boston, MA 02111-1307, USA.
 
-try:
-    from sugar import _sugarext
-except ImportError:
-    from sugar import ltihooks
-    from sugar import _sugarext
+from sugar import _sugarext
 
 def get_for_file(file_name):
     return _sugarext.get_mime_type_for_file(file_name)