diff --git a/src/communicator/comm.c b/src/communicator/comm.c
index 276811b9f8..9cc62e8452 100644
--- a/src/communicator/comm.c
+++ b/src/communicator/comm.c
@@ -668,7 +668,7 @@ ompi_proc_t **ompi_comm_get_rprocs ( ompi_communicator_t *local_comm,
     int local_rank, local_size;
     ompi_proc_t **rprocs=NULL;
     char *rnamebuf=NULL;
-    int len, rlen, tlen;
+    int len, rlen;
     ompi_buffer_t sbuf, rbuf;
     void *sendbuf;
     char *recvbuf;
diff --git a/src/communicator/comm_dyn.c b/src/communicator/comm_dyn.c
index 2f82e9d75f..c5c858703d 100644
--- a/src/communicator/comm_dyn.c
+++ b/src/communicator/comm_dyn.c
@@ -24,7 +24,7 @@
 
 int ompi_comm_connect_accept ( ompi_communicator_t *comm, int root,
                                ompi_process_name_t *port, int send_first,
-                               ompi_communicator_t **newcomm )
+                               ompi_communicator_t **newcomm, int tag )
 {
     int size, rsize, rank, rc;
     int namebuflen, rnamebuflen;
@@ -46,7 +46,7 @@ int ompi_comm_connect_accept ( ompi_communicator_t *comm, int root,
            information of the remote process. Therefore, we have to
            exchange that.
         */
-        rport = ompi_comm_get_rport (port,send_first,group->grp_proc_pointers[rank]);
+        rport = ompi_comm_get_rport (port,send_first,group->grp_proc_pointers[rank], tag);
 
         /* Exchange number of processes and msg length on both sides */
 	ompi_buffer_init (&nbuf, size*sizeof(ompi_process_name_t));
@@ -58,12 +58,12 @@ int ompi_comm_connect_accept ( ompi_communicator_t *comm, int root,
         ompi_pack(sbuf, &namebuflen, 1, OMPI_INT32);
 
         if ( send_first ) {
-            rc = mca_oob_send_packed(rport, sbuf, 0, 0);
-            rc = mca_oob_recv_packed (rport, &rbuf, NULL);
+            rc = mca_oob_send_packed(rport, sbuf, tag, 0);
+            rc = mca_oob_recv_packed (rport, &rbuf, &tag);
         }
         else {
-            rc = mca_oob_recv_packed(rport, &rbuf, NULL);
-            rc = mca_oob_send_packed(rport, sbuf, 0, 0);
+            rc = mca_oob_recv_packed(rport, &rbuf, &tag);
+            rc = mca_oob_send_packed(rport, sbuf, tag, 0);
         }
 
         ompi_unpack(rbuf, &rsize, 1, OMPI_INT32);
@@ -87,12 +87,12 @@ int ompi_comm_connect_accept ( ompi_communicator_t *comm, int root,
         /* Exchange list of processes in the groups */
         
         if ( send_first ) {
-            rc = mca_oob_send_packed(rport, nbuf, 0, 0);
-            rc = mca_oob_recv_packed (rport, &nrbuf, NULL);
+            rc = mca_oob_send_packed(rport, nbuf, tag, 0);
+            rc = mca_oob_recv_packed (rport, &nrbuf, &tag);
         }
         else {
-            rc = mca_oob_recv_packed(rport, &nrbuf, NULL);
-            rc = mca_oob_send_packed(rport, nbuf, 0, 0);
+            rc = mca_oob_recv_packed(rport, &nrbuf, &tag);
+            rc = mca_oob_send_packed(rport, nbuf, tag, 0);
         }
     }
     else {
@@ -198,7 +198,7 @@ int ompi_comm_connect_accept ( ompi_communicator_t *comm, int root,
  *
  */
 ompi_process_name_t *ompi_comm_get_rport (ompi_process_name_t *port, int send_first, 
-                                          ompi_proc_t *proc)
+                                          ompi_proc_t *proc, int tag)
 {
     int rc;
     ompi_process_name_t *rport, tbuf;
@@ -209,7 +209,7 @@ ompi_process_name_t *ompi_comm_get_rport (ompi_process_name_t *port, int send_fi
 
         ompi_buffer_init(&sbuf, sizeof(ompi_process_name_t));
         ompi_pack(sbuf, &(proc->proc_name), 1, OMPI_NAME);
-        rc = mca_oob_send_packed(port, sbuf, 0, 0);
+        rc = mca_oob_send_packed(port, sbuf, tag, 0);
         ompi_buffer_free(sbuf);
 
         rport = port;
@@ -217,15 +217,11 @@ ompi_process_name_t *ompi_comm_get_rport (ompi_process_name_t *port, int send_fi
     else {
         ompi_buffer_t rbuf;
 
-        rc = mca_oob_recv_packed(MCA_OOB_NAME_ANY, &rbuf, NULL);
+        rc = mca_oob_recv_packed(MCA_OOB_NAME_ANY, &rbuf, &tag);
         ompi_unpack(rbuf, &tbuf, 1, OMPI_NAME);
         ompi_buffer_free(rbuf);
 
-	rproc = ompi_proc_find(&tbuf);
-	if ( NULL == rproc ) {
-	    rproc = OBJ_NEW(ompi_proc_t);
-	    rproc->proc_name = tbuf;
-	}
+	rproc = ompi_proc_find_and_add(&tbuf);
         rport = &(rproc->proc_name);
     }
     
diff --git a/src/communicator/comm_publish.c b/src/communicator/comm_publish.c
index b6cd47d874..546efdf675 100644
--- a/src/communicator/comm_publish.c
+++ b/src/communicator/comm_publish.c
@@ -12,24 +12,59 @@
 #include "include/constants.h"
 #include "mca/pcm/pcm.h"
 #include "mca/pml/pml.h"
-
-#ifndef HAVE_REGISTRY
-/* just to keep the linker happy */
-int ompi_comm_namepublish ( char *service_name, char *port_name ) 
-{
-    return OMPI_SUCCESS;
-}
-char* ompi_comm_namelookup ( char *service_name )
-{
-    return NULL;
-}
-int ompi_comm_nameunpublish ( char *service_name )
-{
-    return OMPI_SUCCESS;
-}
-#else
+#include "mca/ns/ns.h"
+#include "mca/gpr/base/base.h"
 #include "mca/gpr/gpr.h"
 
+static ompi_mutex_t ompi_port_lock;
+static int port_id=0;
+
+int ompi_open_port(char *port_name)
+{
+    ompi_proc_t **myproc=NULL;
+    char *name=NULL;
+    size_t size=0;
+    int lport_id=-1;
+
+    /*
+     * The port_name is equal to the OOB-contact information
+     * and an integer. The reason for adding the integer is
+     * to make the port unique for multi-threaded scenarios.
+     */
+  
+    myproc = ompi_proc_self (&size);
+    name = ompi_name_server.get_proc_name_string (&(myproc[0]->proc_name));
+
+    OMPI_THREAD_LOCK(&ompi_port_lock);
+    lport_id = port_id++;
+    OMPI_THREAD_UNLOCK(&ompi_port_lock);
+
+    sprintf (port_name, "%s:%d", name, lport_id);
+    free ( myproc );
+    free ( name );
+    
+    return OMPI_SUCCESS;
+}
+
+/* takes a port_name and separates it into the process_name 
+   and the tag
+*/
+char *ompi_parse_port (char *port_name, int *tag) 
+{
+    char tmp_port[MPI_MAX_PORT_NAME], *tmp_string;
+
+    tmp_string = (char *) malloc (MPI_MAX_PORT_NAME);
+    if (NULL ==  tmp_string ) {
+	return NULL;
+    }
+
+    strncpy (tmp_port, port_name, MPI_MAX_PORT_NAME);
+    strncpy (tmp_string, strtok(tmp_port, ":"), MPI_MAX_PORT_NAME);
+    sscanf( strtok(NULL, ":"),"%d", tag);
+    
+    return tmp_string;
+}
+
 /* 
  * publish the port_name using the service_name as a token
  * jobid and vpid are used later to make
@@ -37,21 +72,38 @@ int ompi_comm_nameunpublish ( char *service_name )
  */
 int ompi_comm_namepublish ( char *service_name, char *port_name ) 
 {
-    return (ompi_registry_put((uint8_t *)port_name, strlen(service_name), 
-                              "universe", service_name, NULL));
+
+    char *key[2];
+    
+    key[0] = service_name;
+    key[1] = NULL;
+    return ompi_registry.put(OMPI_REGISTRY_OVERWRITE, "ompi_name_publish", 
+			     key, port_name, (strlen(port_name)+1));
 }
 
 char* ompi_comm_namelookup ( char *service_name )
 {
-    ompi_registry_value_t *tmp;
-    char *stmp=NULL;
+    char *key[2];
+    ompi_list_t *tmp=NULL;
+    ompi_registry_value_t *vtmp=NULL;
+    char *stmp=NULL, *stmp2=NULL;
 
-    tmp = ompi_registry_get("universe", service_name, NULL);
+    key[0] = service_name;
+    key[1] = NULL;
+    tmp = ompi_registry.get(OMPI_REGISTRY_NONE, "ompi_name_publish", key);
     if ( NULL != tmp ) {
-        stmp = (char*)tmp->object;
+        vtmp = (ompi_registry_value_t *) ompi_list_get_first(tmp);
+	if (NULL != vtmp) {
+	    stmp  = (char *)vtmp->object;
+	    if ( NULL != stmp) {
+		stmp2 = strdup(stmp);
+		OBJ_RELEASE(vtmp);
+	    }
+}
+	OBJ_RELEASE(tmp);
     }
 
-    return (stmp);
+    return (stmp2);
 }
 
 /* 
@@ -62,7 +114,8 @@ char* ompi_comm_namelookup ( char *service_name )
  */
 int ompi_comm_nameunpublish ( char *service_name )
 {
-    return (ompi_registry_del("universe", service_name, NULL)); 
+    char *key[2];
+    key[0] = service_name;
+    key[1] = NULL;
+    return ompi_registry.delete_object(OMPI_REGISTRY_NONE, "ompi_name_publish", key); 
 }
-
-#endif
diff --git a/src/communicator/communicator.h b/src/communicator/communicator.h
index 8b6ab0c03b..f3d7eb5fa7 100644
--- a/src/communicator/communicator.h
+++ b/src/communicator/communicator.h
@@ -333,7 +333,16 @@ extern "C" {
      */
     int ompi_comm_dump ( ompi_communicator_t *comm );
 
+    /** 
+     * a simple function to determint a port number
+     */
+    int ompi_open_port (char *port_name);
 
+    /**
+     * takes a port_name and returns the oob-contact information
+     * and the tag
+     */
+    char * ompi_parse_port (char *port_name, int *tag) ;
 
     /** 
      * routines handling name publishing, lookup and unpublishing
@@ -351,7 +360,7 @@ extern "C" {
     */
     int ompi_comm_connect_accept ( ompi_communicator_t *comm, int root,
                                    ompi_process_name_t *port, int send_first,
-                                   ompi_communicator_t **newcomm);
+                                   ompi_communicator_t **newcomm, int tag);
 
     /* A helper routine for ompi_comm_connect_accept.
      * This routine is necessary, since in the connect/accept case, the processes
@@ -364,7 +373,8 @@ extern "C" {
      *
      */
     ompi_process_name_t *ompi_comm_get_rport (ompi_process_name_t *port,
-                                              int send_first, ompi_proc_t *proc);
+                                              int send_first, ompi_proc_t *proc,
+					      int tag);