diff --git a/daemon/control.c b/daemon/control.c
index 14e10444..28aa51d4 100644
--- a/daemon/control.c
+++ b/daemon/control.c
@@ -30,8 +30,9 @@
 #include "../dbus/interface.h"
 #include "../dbus/error.h"
 #include "control.h"
+#include "../dbus_constants.h"
 
-#define INTERFACE_NAME DBUS_NAME_BASE ".Control"
+#define INTERFACE_NAME IFACE_CONTROL
 
 static void ladish_is_studio_loaded(method_call_t * call_ptr)
 {
diff --git a/daemon/control.h b/daemon/control.h
index be74b0af..3f6afdc1 100644
--- a/daemon/control.h
+++ b/daemon/control.h
@@ -28,8 +28,6 @@
 #ifndef __LASHD_DBUS_IFACE_CONTROL_H__
 #define __LASHD_DBUS_IFACE_CONTROL_H__
 
-#define CONTROL_OBJECT_PATH DBUS_BASE_PATH "/Control"
-
 extern const interface_t g_lashd_interface_control;
 
 void emit_studio_appeared();
diff --git a/daemon/main.c b/daemon/main.c
index c5380aef..b907ef21 100644
--- a/daemon/main.c
+++ b/daemon/main.c
@@ -39,6 +39,7 @@
 #include "control.h"
 #include "jack.h"
 #include "studio.h"
+#include "../dbus_constants.h"
 
 bool g_quit;
 const char * g_dbus_unique_name;
@@ -137,7 +138,7 @@ static bool connect_dbus(void)
     goto unref_connection;
   }
 
-  ret = dbus_bus_request_name(g_dbus_connection, DBUS_NAME_BASE, DBUS_NAME_FLAG_DO_NOT_QUEUE, &g_dbus_error);
+  ret = dbus_bus_request_name(g_dbus_connection, SERVICE_NAME, DBUS_NAME_FLAG_DO_NOT_QUEUE, &g_dbus_error);
   if (ret == -1)
   {
     lash_error("Failed to acquire bus name: %s", g_dbus_error.message);
diff --git a/daemon/studio.c b/daemon/studio.c
index a357a3f9..00a7f4c8 100644
--- a/daemon/studio.c
+++ b/daemon/studio.c
@@ -27,6 +27,7 @@
 #include "common.h"
 #include "../jack_proxy.h"
 #include "patchbay.h"
+#include "../dbus_constants.h"
 
 extern const interface_t g_interface_studio;
 
@@ -462,7 +463,7 @@ studio_activate(
 {
   object_path_t * object;
 
-  object = object_path_new(DBUS_BASE_PATH "/Studio", studio, 2, &g_interface_studio, &g_interface_patchbay);
+  object = object_path_new(STUDIO_OBJECT_PATH, studio, 2, &g_interface_studio, &g_interface_patchbay);
   if (object == NULL)
   {
     lash_error("object_path_new() failed");
@@ -610,7 +611,7 @@ SIGNALS_BEGIN
   SIGNAL_DESCRIBE(RoomDisappeared)
 SIGNALS_END
 
-INTERFACE_BEGIN(g_interface_studio, DBUS_NAME_BASE ".Studio")
+INTERFACE_BEGIN(g_interface_studio, IFACE_STUDIO)
   INTERFACE_DEFAULT_HANDLER
   INTERFACE_EXPOSE_METHODS
   INTERFACE_EXPOSE_SIGNALS
diff --git a/dbus_constants.h b/dbus_constants.h
new file mode 100644
index 00000000..92fa75ec
--- /dev/null
+++ b/dbus_constants.h
@@ -0,0 +1,47 @@
+/* -*- Mode: C ; c-basic-offset: 2 -*- */
+/*
+ * LADI Session Handler (ladish)
+ *
+ * Copyright (C) 2009 Nedko Arnaudov <nedko@arnaudov.name>
+ *
+ **************************************************************************
+ * This file contains constants for D-Bus service and interface names and for D-Bus object paths
+ **************************************************************************
+ *
+ * LADI Session Handler 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * LADI Session Handler 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 LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
+ * or write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef DBUS_CONSTANTS_H__C21DE0EE_C19C_42F0_8D63_D613E4806C0E__INCLUDED
+#define DBUS_CONSTANTS_H__C21DE0EE_C19C_42F0_8D63_D613E4806C0E__INCLUDED
+
+#define JACKDBUS_SERVICE_NAME    "org.jackaudio.service"
+#define JACKDBUS_OBJECT_PATH     "/org/jackaudio/Controller"
+#define JACKDBUS_IFACE_CONTROL   "org.jackaudio.JackControl"
+#define JACKDBUS_IFACE_CONFIGURE "org.jackaudio.Configure"
+#define JACKDBUS_IFACE_PATCHBAY  "org.jackaudio.JackPatchbay"
+
+#define SERVICE_NAME             DBUS_NAME_BASE
+#define CONTROL_OBJECT_PATH      DBUS_BASE_PATH "/Control"
+#define IFACE_CONTROL            DBUS_NAME_BASE ".Control"
+#define STUDIO_OBJECT_PATH       DBUS_BASE_PATH "/Studio"
+#define IFACE_STUDIO             DBUS_NAME_BASE ".Studio"
+#define IFACE_ROOM               DBUS_NAME_BASE ".Room"
+#define LAUNCHER_OBJECT_PATH     DBUS_BASE_PATH "/Launcher"
+#define IFACE_LAUNCHER           DBUS_NAME_BASE ".Launcher"
+#define APPLICATION_OBJECT_PATH  DBUS_BASE_PATH "/Application"
+#define IFACE_APPLICATION        DBUS_NAME_BASE ".App"
+
+#endif /* #ifndef DBUS_CONSTANTS_H__C21DE0EE_C19C_42F0_8D63_D613E4806C0E__INCLUDED */
diff --git a/graph_proxy.c b/graph_proxy.c
index d6dbb2e2..cafebcc7 100644
--- a/graph_proxy.c
+++ b/graph_proxy.c
@@ -33,8 +33,7 @@
 #include "common/klist.h"
 #include "common/debug.h"
 #include "dbus/helpers.h"
-
-#define JACKDBUS_IFACE_PATCHBAY  "org.jackaudio.JackPatchbay"
+#include "dbus_constants.h"
 
 #define JACKDBUS_PORT_FLAG_INPUT         0x00000001
 #define JACKDBUS_PORT_FLAG_OUTPUT        0x00000002
diff --git a/gui/control_proxy.c b/gui/control_proxy.c
index 4d7e381d..40433e62 100644
--- a/gui/control_proxy.c
+++ b/gui/control_proxy.c
@@ -27,10 +27,7 @@
 
 #include "control_proxy.h"
 #include "../dbus/helpers.h"
-
-#define SERVICE   DBUS_NAME_BASE
-#define OBJECT    DBUS_BASE_PATH "/Control"
-#define IFACE     DBUS_NAME_BASE ".Control"
+#include "../dbus_constants.h"
 
 const char * g_signals[] =
 {
@@ -44,19 +41,19 @@ static DBusHandlerResult message_hook(DBusConnection * connection, DBusMessage *
   const char * object_path;
 
   object_path = dbus_message_get_path(message);
-  if (object_path == NULL || strcmp(object_path, OBJECT) != 0)
+  if (object_path == NULL || strcmp(object_path, CONTROL_OBJECT_PATH) != 0)
   {
     return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
   }
 
-  if (dbus_message_is_signal(message, IFACE, "StudioAppeared"))
+  if (dbus_message_is_signal(message, IFACE_CONTROL, "StudioAppeared"))
   {
     lash_info("StudioAppeared");
     control_proxy_on_studio_appeared();
     return DBUS_HANDLER_RESULT_HANDLED;
   }
 
-  if (dbus_message_is_signal(message, IFACE, "StudioDisappeared"))
+  if (dbus_message_is_signal(message, IFACE_CONTROL, "StudioDisappeared"))
   {
     lash_info("StudioDisappeared");
     control_proxy_on_studio_disappeared();
@@ -70,7 +67,7 @@ static bool control_proxy_is_studio_loaded(bool * present_ptr)
 {
   dbus_bool_t present;
 
-  if (!dbus_call_simple(SERVICE, OBJECT, IFACE, "IsStudioLoaded", "", "b", &present))
+  if (!dbus_call_simple(SERVICE_NAME, CONTROL_OBJECT_PATH, IFACE_CONTROL, "IsStudioLoaded", "", "b", &present))
   {
     return false;
   }
@@ -84,14 +81,14 @@ bool control_proxy_init(void)
 {
   bool studio_present;
 
-  if (!dbus_register_object_signal_handler(g_dbus_connection, SERVICE, OBJECT, IFACE, g_signals, message_hook, NULL))
+  if (!dbus_register_object_signal_handler(g_dbus_connection, SERVICE_NAME, CONTROL_OBJECT_PATH, IFACE_CONTROL, g_signals, message_hook, NULL))
   {
     return false;
   }
 
   if (!control_proxy_is_studio_loaded(&studio_present))
   {
-    dbus_unregister_object_signal_handler(g_dbus_connection, SERVICE, OBJECT, IFACE, g_signals, message_hook, NULL);
+    dbus_unregister_object_signal_handler(g_dbus_connection, SERVICE_NAME, CONTROL_OBJECT_PATH, IFACE_CONTROL, g_signals, message_hook, NULL);
     return false;
   }
 
@@ -105,7 +102,7 @@ bool control_proxy_init(void)
 
 void control_proxy_uninit(void)
 {
-  dbus_unregister_object_signal_handler(g_dbus_connection, SERVICE, OBJECT, IFACE, g_signals, message_hook, NULL);
+  dbus_unregister_object_signal_handler(g_dbus_connection, SERVICE_NAME, CONTROL_OBJECT_PATH, IFACE_CONTROL, g_signals, message_hook, NULL);
 }
 
 bool control_proxy_get_studio_list(struct list_head * studio_list)
diff --git a/gui/lash_proxy.cpp b/gui/lash_proxy.cpp
index 2b4ca7bb..4715cdc9 100644
--- a/gui/lash_proxy.cpp
+++ b/gui/lash_proxy.cpp
@@ -36,10 +36,6 @@
 #include "globals.hpp"
 #include "dbus_helpers.h"
 
-#define LASH_SERVICE       DBUS_NAME_BASE
-#define LASH_OBJECT        "/org/ladish/Control"
-#define LASH_IFACE_CONTROL DBUS_NAME_BASE ".Control"
-
 struct lash_proxy_impl
 {
         void init();
diff --git a/gui/main.c b/gui/main.c
index 067c06d6..adead83b 100644
--- a/gui/main.c
+++ b/gui/main.c
@@ -32,6 +32,7 @@
 #include "../jack_proxy.h"
 #include "dbus_helpers.h"
 #include "control_proxy.h"
+#include "../dbus_constants.h"
 
 #if 0
 class Patchage {
@@ -880,7 +881,7 @@ struct view * create_view(const char * name, const char * service, const char *
     goto free_view;
   }
 
-  if (!graph_create(JACKDBUS_SERVICE, JACKDBUS_OBJECT, &view_ptr->graph))
+  if (!graph_create(service, object, &view_ptr->graph))
   {
     goto free_name;
   }
@@ -948,7 +949,7 @@ struct view * g_studio_view;
 
 void control_proxy_on_studio_appeared(void)
 {
-  g_jack_view = create_view("Raw JACK", JACKDBUS_SERVICE, JACKDBUS_OBJECT);
+  g_jack_view = create_view("Raw JACK", JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH);
   attach_view(g_jack_view);
 }
 
diff --git a/jack_proxy.c b/jack_proxy.c
index e8a710f7..4007c2e3 100644
--- a/jack_proxy.c
+++ b/jack_proxy.c
@@ -32,9 +32,7 @@
 #include "jack_proxy.h"
 #include "dbus/helpers.h"
 #include "common/debug.h"
-
-#define JACKDBUS_IFACE_CONTROL   "org.jackaudio.JackControl"
-#define JACKDBUS_IFACE_CONFIGURE "org.jackaudio.Configure"
+#include "dbus_constants.h"
 
 jack_proxy_callback_server_started g_on_server_started;
 jack_proxy_callback_server_stopped g_on_server_stopped;
@@ -100,7 +98,7 @@ on_bus_signal(
       return DBUS_HANDLER_RESULT_HANDLED;
     }
 
-    if (strcmp(object_name, JACKDBUS_SERVICE) != 0)
+    if (strcmp(object_name, JACKDBUS_SERVICE_NAME) != 0)
     {
       return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
     }
@@ -164,7 +162,7 @@ dbus_signal_handler(
   lash_debug("'%s' sent signal '%s'::'%s'", object_path, interface, signal_name);
 
   /* Handle JACK patchbay and control interface signals */
-  if (object_path != NULL && strcmp(object_path, JACKDBUS_OBJECT) == 0)
+  if (object_path != NULL && strcmp(object_path, JACKDBUS_OBJECT_PATH) == 0)
   {
     if (strcmp(interface, JACKDBUS_IFACE_CONTROL) == 0)
     {
@@ -203,7 +201,7 @@ jack_proxy_init(
 
   dbus_bus_add_match(
     g_dbus_connection,
-    "type='signal',interface='"DBUS_INTERFACE_DBUS"',member=NameOwnerChanged,arg0='"JACKDBUS_SERVICE"'",
+    "type='signal',interface='"DBUS_INTERFACE_DBUS"',member=NameOwnerChanged,arg0='"JACKDBUS_SERVICE_NAME"'",
     &err);
   if (dbus_error_is_set(&err))
   {
@@ -217,7 +215,7 @@ jack_proxy_init(
     snprintf(
       rule,
       sizeof(rule),
-      "type='signal',sender='"JACKDBUS_SERVICE"',path='"JACKDBUS_OBJECT"',interface='"JACKDBUS_IFACE_CONTROL"',member='%s'",
+      "type='signal',sender='"JACKDBUS_SERVICE_NAME"',path='"JACKDBUS_OBJECT_PATH"',interface='"JACKDBUS_IFACE_CONTROL"',member='%s'",
       *signal);
 
     dbus_bus_add_match(g_dbus_connection, rule, &err);
@@ -256,7 +254,7 @@ jack_proxy_is_started(
 {
   dbus_bool_t started;
 
-  if (!dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "IsStarted", "", "b", &started))
+  if (!dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "IsStarted", "", "b", &started))
   {
     return false;
   }
@@ -330,7 +328,7 @@ jack_proxy_read_conf_container(
   dbus_bool_t leaf;           /* Whether children are parameters (true) or containers (false) */
   char * child;
 
-  request_ptr = dbus_message_new_method_call(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONFIGURE, "ReadContainer");
+  request_ptr = dbus_message_new_method_call(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONFIGURE, "ReadContainer");
   if (request_ptr == NULL)
   {
     lash_error("dbus_message_new_method_call() failed.");
@@ -462,7 +460,7 @@ jack_proxy_get_parameter_value(
   dbus_bool_t is_set;
   struct jack_parameter_variant default_value;
 
-  request_ptr = dbus_message_new_method_call(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONFIGURE, "GetParameterValue");
+  request_ptr = dbus_message_new_method_call(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONFIGURE, "GetParameterValue");
   if (request_ptr == NULL)
   {
     lash_error("dbus_message_new_method_call() failed.");
@@ -535,19 +533,19 @@ jack_proxy_get_parameter_value(
 
 bool jack_proxy_start_server(void)
 {
-  return dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "StartServer", "", "");
+  return dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "StartServer", "", "");
 }
 
 bool jack_proxy_stop_server(void)
 {
-  return dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "StopServer", "", "");
+  return dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "StopServer", "", "");
 }
 
 bool jack_proxy_is_realtime(bool * realtime_ptr)
 {
   dbus_bool_t realtime;
 
-  if (!dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "IsStarted", "", "b", &realtime))
+  if (!dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "IsStarted", "", "b", &realtime))
   {
     return false;
   }
@@ -558,30 +556,30 @@ bool jack_proxy_is_realtime(bool * realtime_ptr)
 
 bool jack_proxy_sample_rate(uint32_t * sample_rate_ptr)
 {
-  return dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "GetSampleRate", "", "u", sample_rate_ptr);
+  return dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "GetSampleRate", "", "u", sample_rate_ptr);
 }
 
 bool jack_proxy_get_xruns(uint32_t * xruns_ptr)
 {
-  return dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "GetXruns", "", "u", xruns_ptr);
+  return dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "GetXruns", "", "u", xruns_ptr);
 }
 
 bool jack_proxy_get_dsp_load(double * dsp_load_ptr)
 {
-  return dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "GetXruns", "", "d", dsp_load_ptr);
+  return dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "GetXruns", "", "d", dsp_load_ptr);
 }
 
 bool jack_proxy_get_buffer_size(uint32_t * size_ptr)
 {
-  return dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "GetBufferSize", "", "u", size_ptr);
+  return dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "GetBufferSize", "", "u", size_ptr);
 }
 
 bool jack_proxy_set_buffer_size(uint32_t size)
 {
-  return dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "GetBufferSize", "u", &size, "");
+  return dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "GetBufferSize", "u", &size, "");
 }
 
 bool jack_proxy_reset_xruns(void)
 {
-  return dbus_call_simple(JACKDBUS_SERVICE, JACKDBUS_OBJECT, JACKDBUS_IFACE_CONTROL, "GetBufferSize", "", "");
+  return dbus_call_simple(JACKDBUS_SERVICE_NAME, JACKDBUS_OBJECT_PATH, JACKDBUS_IFACE_CONTROL, "GetBufferSize", "", "");
 }
diff --git a/jack_proxy.h b/jack_proxy.h
index 7a6d15ec..e25200df 100644
--- a/jack_proxy.h
+++ b/jack_proxy.h
@@ -30,9 +30,6 @@
 
 #include "common.h"
 
-#define JACKDBUS_SERVICE         "org.jackaudio.service"
-#define JACKDBUS_OBJECT          "/org/jackaudio/Controller"
-
 struct jack_parameter_variant
 {
   enum