diff --git a/calexium_lib/CXM_message_constants.anubis b/calexium_lib/CXM_message_constants.anubis
index 0a07623..81237ee 100644
--- a/calexium_lib/CXM_message_constants.anubis
+++ b/calexium_lib/CXM_message_constants.anubis
@@ -73,3 +73,8 @@ public define Word32 _CXM_GANDI_CREATE_CONTACT       = 0x33771D02.   // 'CLASS' 
 public define Word32 _CXM_GANDI_CREATE_DOMAIN        = 0x33771D03.   // 'DOMAIN' (String): Domain full name
                                                                     // 'OWNER' (String): Owner handle
                                                                     // --> CXM_ACK with 'DOMAIN_HANDLE' (String): Created handle for this domain
+  // **************  MF INSTALLER SERVICE **************
+
+public define Int32 _CXM_INSTALLER_SERVICE_MSG_BASIS= 0x33772000.
+public define Int32 _CXM_INSTALLER_SERVICE_ID       = 0x33772001.
+public define Int32 _CXM_INSTALLER_REGISTER_APP_ID  = 0x33772002.
--
libgit2 0.21.4