diff --git a/calexium_lib/CXM_message_constants.anubis b/calexium_lib/CXM_message_constants.anubis
index ce44aa3..3ed7165 100644
--- a/calexium_lib/CXM_message_constants.anubis
+++ b/calexium_lib/CXM_message_constants.anubis
@@ -33,6 +33,7 @@ public define Int32 _CXM_REQUEST_FOR_SERVICE        = 0x33770C01. //
 
 public define Int32 _CXM_GENERIC_PROTOCOL_BASIS     = 0x33771000. //
 public define Int32 _CXM_ACK                        = 0x33771001. //
+public define Int32 _CXM_ACK_RESULT_MSG             = 0x33771002. //
 
   // ****************  FTP SERVICE ***************
 
diff --git a/calexium_lib/net_services/CXM_generic_protocol.anubis b/calexium_lib/net_services/CXM_generic_protocol.anubis
index 8ce65de..2385f5a 100644
--- a/calexium_lib/net_services/CXM_generic_protocol.anubis
+++ b/calexium_lib/net_services/CXM_generic_protocol.anubis
@@ -24,8 +24,8 @@ public define One
     Int32     cmd_id
   )=
   with err_msg = message(_CXM_ACK),
-  forget(add_int32(err_msg, "_CMD", cmd_id));
-  forget(add_int32(err_msg, "_STATUS", _CXM_ERROR));
+  forget(add_int32(err_msg, "CMD", cmd_id));
+  forget(add_int32(err_msg, "STATUS", _CXM_ERROR));
   forget(send_message_by_Stream(conn, err_msg))
   .
   
@@ -36,10 +36,38 @@ public define One
     Int32     cmd_id
   )=
   with ok_msg = message(_CXM_ACK),
-  forget(add_int32(ok_msg, "_CMD", cmd_id));
-  forget(add_int32(ok_msg, "_STATUS", _CXM_OK));
+  forget(add_int32(ok_msg, "CMD", cmd_id));
+  forget(add_int32(ok_msg, "STATUS", _CXM_OK));
   forget(send_message_by_Stream(conn, ok_msg))
   .
+
+public define One
+  send_ACK_ok
+  (
+    RWStream  conn,
+    Int32     cmd_id,
+    Message   result
+  )=
+  with ok_msg = message(_CXM_ACK),
+  forget(add_int32(ok_msg, "CMD", cmd_id));
+  forget(add_int32(ok_msg, "STATUS", _CXM_OK));
+  forget(add_message(ok_msg, "RESULT", result));
+  forget(send_message_by_Stream(conn, ok_msg))
+  .
+  
+public define One
+  send_result
+  (
+    RWStream        conn,
+    Int32           cmd_id,
+    Maybe(Message)  mb_msg
+  )=
+  if mb_msg is
+  {
+    failure       then send_ACK_error(conn, cmd_id),
+    success(msg)  then send_ACK_ok(conn, cmd_id, msg)
+  }
+  .
   
 public define Maybe(Message)
   wait_for_reply
diff --git a/calexium_lib/net_services_protocols/pkg_updater_protocol.anubis b/calexium_lib/net_services_protocols/pkg_updater_protocol.anubis
new file mode 100644
index 0000000..c64334f
--- /dev/null
+++ b/calexium_lib/net_services_protocols/pkg_updater_protocol.anubis
@@ -0,0 +1,11 @@
+/*
+ * 
+ * User: David RENE
+ * Date: 26/04/2007
+ * Time: 19:08
+ * (c) Calexium
+ *
+ */
+
+public define Int32 no_update         = 0.
+public define Int32 update_available  = 1.
--
libgit2 0.21.4