diff --git a/code/OSC/listen-osc.c b/code/OSC/listen-osc.c
index f142ded..7d4e5d7 100644
--- a/code/OSC/listen-osc.c
+++ b/code/OSC/listen-osc.c
@@ -1,15 +1,54 @@
 /*	LISTEN OSC				*/
 
 #include  <stdio.h>
+#include  <unistd.h>
+#include  <stdlib.h>
+
 #include  <lo/lo.h>
 
 #define LOCAL_PORT	"9000"
 
-int main(int argc, char *argv[])
+/* ----------------------------------------------------------------- */
+void error(int num, const char *msg, const char *path)
 {
-lo_server_thread st;
+fprintf(stderr, "liblo server error %d in path %s : %s\n", num, path, msg);
+exit(1);
+}
+/* ----------------------------------------------------------------- */
 
-st = lo_server_thread_new(LOCAL_PORT, NULL);
+int handler(const char *path, const char *types, lo_arg ** argv,
+                int argc, void *data, void *udata)
+{
+static int	event_number = 1;
+
+printf("------  event #%d :\n", event_number++);
+printf("\tpath  '%s'   types '%s'   argc %d\n",
+		path, 	types, 	argc);
+
+printf("\tdata      %p\n", data);
+// if (NULL!=data) printf("\t >%s<\n", data);
+printf("\tudata     %p\n", udata);
+if (NULL!=udata) printf("\t\t>%s<\n", (char *)udata);
+
+return 0;
+}
+
+/* ----------------------------------------------------------------- */
+
+char signature[] = "Bourtoulots";
+
+int main(int argc, char *argv[])
+{
+lo_server_thread st;
+int		count = 0;
+
+st = lo_server_thread_new(LOCAL_PORT, error);
+lo_server_thread_add_method(st, "/demo", "is", handler, signature);
+lo_server_thread_start(st);
+
+for (;;) {
+	fprintf(stderr, "%6d  I'm alive\n", count++);	sleep(10);
+	}
 
 return 0;
 }
diff --git a/code/OSC/send-osc.c b/code/OSC/send-osc.c
index 0968036..fd902ec 100644
--- a/code/OSC/send-osc.c
+++ b/code/OSC/send-osc.c
@@ -11,8 +11,10 @@ int main(int argc, char *argv[])
 lo_address	loana;
 int		foo;
 
+fprintf(stderr, "sending to %s:%s\n", REMOTE_HOST, REMOTE_PORT);
+
 loana = lo_address_new(REMOTE_HOST, REMOTE_PORT);
-foo = lo_send(loana, "/dev/kmem", "is", 61, "meg, efface !");
-fprintf(stderr, "foo %d\n", foo);
+foo = lo_send(loana, "/demo", "is", 61, "meg, efface !");
+fprintf(stderr, "got a %d return code ?\n", foo);
 return 0;
 }