diff --git a/src/ecoprimer.c b/src/ecoprimer.c
index c6bc79c..4d5ab34 100644
--- a/src/ecoprimer.c
+++ b/src/ecoprimer.c
@@ -25,9 +25,59 @@
 
 static void PrintHelp()
 {
-        PP      "------------------------------------------\n");
-        PP      " ecoPrimer Version %s\n", VERSION);
-        PP      "------------------------------------------\n");
+			  PP      "------------------------------------------\n");
+			  PP      " ecoPrimer Version %s\n", VERSION);
+			  PP      "------------------------------------------\n");
+              PP      "synopsis : finding primers and measureing the quality of primers and barcode region\n");
+              PP      "usage: ./ecoPrimer [options] \n");
+              PP      "------------------------------------------\n");
+              PP      "options:\n");
+              PP      "-d    : [D]atabase : to match the expected format, the database\n");
+              PP      "        has to be formated first by the ecoPCRFormat.py program located.\n");
+              PP      "        in the ecoPCR/tools directory.\n");
+              PP      "        ecoPCRFormat.py creates three file types :\n");
+              PP      "            .sdx : contains the sequences\n");
+              PP      "            .tdx : contains information concerning the taxonomy\n");
+              PP      "            .rdx : contains the taxonomy rank\n\n");
+              PP      "        ecoPrimer needs all the file type. As a result, you have to write the\n");
+              PP      "        database radical without any extension. For example /ecoPrimerDB/fstvert\n\n");        
+              PP      "-e    : [E]rror : max error allowed by oligonucleotide (0 by default)\n\n");
+              PP      "-h    : [H]elp - print <this> help\n\n");
+              PP      "-i    : [I]gnore the given taxonomy id.\n\n");
+              PP      "-l    : minimum [L]ength : define the minimum amplication length. \n\n");
+              PP      "-L    : maximum [L]ength : define the maximum amplicationlength. \n\n");
+              PP      "-r    : [R]estricts the search to the given taxonomic id.\n\n");
+              PP      "-c    : Consider that the database sequences are [c]ircular\n\n");
+              PP      "-3 	 : Three prime strict match\n\n");
+              PP      "-q    : Strict matching [q]uorum, percentage of the sequences in which strict primers are found. By default it is 70\n\n");
+              PP      "-s    : [S]ensitivity quorum\n\n");
+              PP      "-t    : required [t]axon level for results, by default the results are computed at species level\n\n");
+              PP      "-x    : false positive quorum\n\n");
+              PP      "-D    : set in [d]ouble strand mode\n\n");
+              PP      "-S    : Set in [s]ingle strand mode\n\n");
+              PP      "-U    : No multi match\n\n");
+              PP      "\n");
+              PP      "------------------------------------------\n");
+              PP      "Table result description : \n");
+              PP      "column 1 : serial number\n");
+              PP      "column 2 : primer1\n");
+              PP      "column 3 : primer2\n");
+              PP      "column 4 : good/bad\n");
+              PP      "column 5 : in sequence count\n");
+              PP      "column 6 : out sequence count\n");
+              PP      "column 7 : yule\n");
+              PP      "column 8 : in taxa count\n");
+              PP      "column 9 : out taxa count\n");
+              PP      "column 10 : coverage\n");
+              PP      "column 11 : specificity\n");
+              PP      "column 12 : minimum amplified length\n");
+              PP      "column 13 : maximum amplified length\n");
+              PP      "column 14 : average amplified length\n");
+              PP      "------------------------------------------\n");
+              PP		" http://www.grenoble.prabi.fr/trac/ecoPrimer/\n");
+              PP      "------------------------------------------\n\n");        
+              PP      "\n");
+
 }
 
 static void ExitUsage(int stat)
@@ -180,6 +230,8 @@ void printpairs (ppairtree_t pairs, poptions_t options)
    size_t i,j;
    int32_t count;
 
+   //printf("Index\tPrimer1\tPrimer2\tGB\tInexampleCount\tOutexampleCount\tYule\tIntaxaCount\tOuttaxaCount\tCoverage\tSpecificity\tMinAmplifiedLength\tMaxAmplifiedLength\tAvgAmplifiedLength\n"); 
+   
    fprintf(stderr,"Total pair count : %d\n",pairs->count);
 
    sortedpairs = ECOMALLOC(pairs->count*sizeof(ppair_t),"Cannot Allocate ordered pairs");
@@ -374,9 +426,9 @@ int main(int argc, char **argv)
                                 /* -------------------- */
         case 'h':               /* help                 */
                                 /* -------------------- */
-           PrintHelp();
-           exit(0);
-           break;
+        	PrintHelp();
+        	 exit(0);
+        	 break;
 
                                 /* ------------------------- */
         case 'l':               /* min amplification lenght  */