Index: src/libvortex.def
===================================================================
--- src/libvortex.def	(revision 686)
+++ src/libvortex.def	(working copy)
@@ -403,12 +403,13 @@
 vortex_mutex_destroy
 vortex_mutex_lock
 vortex_mutex_unlock
+vortex_profiles_acquire
 vortex_profiles_cleanup
 vortex_profiles_get_actual_list
-vortex_profiles_get_actual_list_ref
 vortex_profiles_get_automatic_mime
 vortex_profiles_get_mime_type
 vortex_profiles_get_transfer_encoding
+vortex_profiles_has_profiles
 vortex_profiles_init
 vortex_profiles_invoke_close
 vortex_profiles_invoke_frame_received
@@ -420,6 +421,7 @@
 vortex_profiles_register
 vortex_profiles_register_extended_start
 vortex_profiles_registered
+vortex_profiles_release
 vortex_profiles_set_automatic_mime
 vortex_profiles_set_mime_type
 vortex_profiles_unregister
Index: src/vortex_greetings.c
===================================================================
--- src/vortex_greetings.c	(revision 686)
+++ src/vortex_greetings.c	(working copy)
@@ -63,7 +63,7 @@
  **/
 int __vortex_greetings_build_message (VortexConnection * connection, char * greetings_buffer, int buffer_size)
 {
-	axlList       * registered_profiles = vortex_profiles_get_actual_list_ref ();
+	axlList       * registered_profiles = NULL;
 	int             iterator;
 	int             next_index          = 0;
 	const char    * localize            = NULL;
@@ -117,6 +117,7 @@
 	
 	memcpy (greetings_buffer + next_index, ">\x0D\x0A", 3);
 	next_index += 3;
+    registered_profiles = vortex_profiles_acquire ();
 	if (registered_profiles != NULL) {
 		iterator = 0;   
 		while (iterator < axl_list_length (registered_profiles)) {
@@ -142,6 +143,7 @@
 			if ((next_index + size + 36) >= buffer_size) {
 				vortex_log (LOG_DOMAIN, VORTEX_LEVEL_CRITICAL,  
 					"found buffer to build greetings to be not enough to hold current profiles to advertise");
+            vortex_profiles_release(registered_profiles);
 				return -1;
 			} /* end if */
 			
@@ -162,6 +164,7 @@
 			
 		} /* end if */
 	} /* end if */
+   vortex_profiles_release(registered_profiles);
 	
 	/* terminate greetings  */
 	memcpy (greetings_buffer + next_index, "</greeting>\x0D\x0A", 13);
@@ -183,16 +186,13 @@
  **/
 axl_bool      vortex_greetings_send (VortexConnection * connection)
 {
-	axlList       * registered_profiles;
-
 	/* tecnically, the greetings initial message can't be larger
 	 * than 4096 initial window. */
 	char            greetings_buffer[5100];
 	int             next_index = 0;
 
 	/* build up supported registered profiles */
-	registered_profiles  = vortex_profiles_get_actual_list_ref ();
-	if (registered_profiles == NULL) {
+	if (!vortex_profiles_has_profiles()) {
 		vortex_log (LOG_DOMAIN, VORTEX_LEVEL_CRITICAL, 
 		       "unable to build and send greetings message: unable to find any profile registered");
 		__vortex_connection_set_not_connected (connection, "unable to build and send greetings message: unable to find any profile registered");
@@ -367,16 +367,13 @@
  **/
 axl_bool           vortex_greetings_client_send     (VortexConnection * connection)
 {
-	axlList       * registered_profiles;
-	
 	/* tecnically, the greetings initial message can't be larger
 	 * than 4096 initial window. */
 	char            greetings_buffer[5100];
 	int             next_index = 0;
 	
 	/* build up supported registered profiles */
-	registered_profiles = vortex_profiles_get_actual_list_ref ();
-	if (registered_profiles == NULL) {
+	if (!vortex_profiles_has_profiles ()) {
 		vortex_log (LOG_DOMAIN, VORTEX_LEVEL_CRITICAL, 
 			    "unable to build and send greetings message: unable to found any profile registered");
 		return axl_false;
Index: src/vortex_profiles.c
===================================================================
--- src/vortex_profiles.c	(revision 686)
+++ src/vortex_profiles.c	(working copy)
@@ -35,6 +35,7 @@
  *      Email address:
  *         info@aspl.es - http://www.aspl.es/vortex
  */
+#include <assert.h>
 #include <vortex.h>
 
 /* local include */
@@ -892,19 +893,39 @@
  * @brief Return current profiles registered, in a internally created
  * list.
  * 
- * 
- * @return A reference to the profile list. Do not manipulate or
- * dealloc the list.
+ * @return A reference to the profile list. This reference must be released
+ *         with vortex_profiles_release when not being used anymore
  */
-axlList * vortex_profiles_get_actual_list_ref ()
+axlList * vortex_profiles_acquire ()
 {
-	/* get current context */
 	VortexCtx * ctx = vortex_ctx_get ();
-
-	/* return the reference */
+   vortex_mutex_lock(&ctx->profiles_list_mutex);
 	return ctx->profiles_list;
 }
 
+/**
+ * @brief Release current profiles list
+ */
+void vortex_profiles_release (axlList* list)
+{
+	VortexCtx * ctx = vortex_ctx_get ();
+   assert( ctx->profiles_list == list );
+   vortex_mutex_unlock(&ctx->profiles_list_mutex);
+}
+
+/**
+ * @ brief Return true if there are profiles currently registered
+ */
+axl_bool vortex_profiles_has_profiles ()
+{
+   VortexCtx * ctx = vortex_ctx_get();
+   axl_bool    rpy;
+   vortex_mutex_lock(&ctx->profiles_list_mutex);
+   rpy = !!ctx->profiles_list;
+   vortex_mutex_unlock(&ctx->profiles_list_mutex);
+   return rpy;
+}
+
 /** 
  * @brief Return the actual number of profiles registered. 
  * 
Index: src/vortex_profiles.h
===================================================================
--- src/vortex_profiles.h	(revision 686)
+++ src/vortex_profiles.h	(working copy)
@@ -83,9 +83,10 @@
 int       vortex_profiles_is_defined_received     (const char  * uri);
 
 axlList * vortex_profiles_get_actual_list         ();
+axl_bool  vortex_profiles_has_profiles            ();
+axlList * vortex_profiles_acquire                 ();
+void      vortex_profiles_release                 (axlList * list);
 
-axlList * vortex_profiles_get_actual_list_ref     ();
-
 int       vortex_profiles_registered              ();
 
 axl_bool  vortex_profiles_is_registered           (const char  * uri);