diff --git a/ba/ba3600.cpp b/ba/ba3600.cpp
index 9fe56f5db..d9996990b 100755
--- a/ba/ba3600.cpp
+++ b/ba/ba3600.cpp
@@ -5,6 +5,7 @@
 //#include <utility.h>
 #include <sort.h>
 #include <progind.h>
+#include <prefix.h>
 
 #include <nditte.h>
 #include <anagr.h> 
@@ -39,7 +40,6 @@ class BA3600_application : public TPrintapp
 
   TMask*            _msk;
   TTable*           _tab_lbu;
-  TTable*           _tab_reg;
   TLocalisamfile*   _indlib;
   TLocalisamfile*   _nditte;
   TLocalisamfile*   _anag;
@@ -389,7 +389,13 @@ bool BA3600_application::preprocess_page(int file, int counter)
     _rag_soc       = ragsoc_ditta(_codditta);
     dati_anagrafici_ditta(_ind_dta,_civ_dta,_cap_dta,_com_dta,_prov_dta);
     _cod_reg       = lib->cod_reg;
-    _descrizione   = descrizione_codreg(_cod_reg);
+    if (prefix().exist(_codditta))
+    {
+      set_firm(_codditta); // change firm to get register description
+      _descrizione   = descrizione_codreg(_cod_reg);
+    }
+    else
+      _descrizione = "";
     _cod_vidimaz   = lib->cod_vid;
     _numini_pagut  = lib->nini_put;
     _numfin_pagut  = lib->nfin_put;
@@ -579,14 +585,15 @@ const char* BA3600_application::descrizione_codreg(const TString& codreg)
 {
   TString16 dep;
   dep.format("%4d%-3s", _anno, (const char*)codreg);
+  TTable tab_reg("REG");
+  
+  tab_reg.zero();
+  tab_reg.put("CODTAB", dep);
+  tab_reg.read();
 
-  _tab_reg->zero();
-  _tab_reg->put("CODTAB", dep);
-  _tab_reg->read();
-
-  if (_tab_reg->bad())
-    _tab_reg->zero();
-  tmp = _tab_reg->get("S0");
+  if (tab_reg.bad())
+    tab_reg.zero();
+  tmp = tab_reg.get("S0");
 
   return tmp;
 }
@@ -700,7 +707,6 @@ bool BA3600_application::user_create()
   _indlib = new TLocalisamfile (LF_INDLIB);
   
   _tab_lbu = new TTable (TAB_LBU);
-  _tab_reg = new TTable (TAB_REG);
 
   _msk = new TMask("ba3600a");
   return TRUE;
@@ -711,7 +717,6 @@ bool BA3600_application::user_destroy()
   delete  _msk;
 
   delete _tab_lbu;
-  delete _tab_reg;
   delete _indlib;
   delete _nditte;
   delete _anag;