diff --git a/Generator.cpp b/Generator.cpp
index 8457ed1..264d683 100644
--- a/Generator.cpp
+++ b/Generator.cpp
@@ -19,6 +19,7 @@
 #include "OutputConst.h"
 #include "/EgtDev/Include/EMkDllMain.h"
 #include "/EgtDev/Include/EGnFileUtils.h"
+#include "/EgtDev/Include/EGnGetKeyData.h"
 
 using namespace std ;
 
@@ -46,19 +47,31 @@ Generator::Init( MachMgr* pMchMgr)
 bool
 Generator::Run( const string& sCncFile, const string& sInfo)
 {
-  // verifico sia abilitato dalla licenza
-   bool bEnabled = false ;
-   if ( GetEMkNetHwKey()) {
-      bEnabled = true ;
-   }
-   else {
-      unsigned int nOpt1, nOpt2 ;
-      int nOptExpDays ;
+  // Controllo della licenza
+   unsigned int nOpt1, nOpt2 ;
+   int nOptExpDays ;
+   int nRet = GetEGnKeyOptions( KEY_BASELIB_PROD, KEY_BASELIB_VER, KEY_BASELIB_LEV,
+                                nOpt1, nOpt2, nOptExpDays) ;
+   if ( ! GetEMkNetHwKey())
       int nRet = GetKeyOptions( GetEMkKey(), KEY_BASELIB_PROD, KEY_BASELIB_VER, KEY_BASELIB_LEV,
                                 nOpt1, nOpt2, nOptExpDays) ;
-      bEnabled = ( nRet == KEY_OK  &&  ( nOpt1 & KEYOPT_EMK_NC_OFF) == 0) ;
-   }
-   if ( bEnabled) {
+
+  // Verifica della abilitazione
+   bool bMinTime = false ;
+   if ( nOptExpDays >= GetMinDay())
+      bMinTime = true ;
+   bool bCurrTime = false ;
+   if ( nOptExpDays >= GetCurrDay())
+      bCurrTime = true ;
+   bool bKey = false ;
+   if ( nRet == KEY_OK)
+      bKey = true ;
+   bool bOption = false ;
+   if ( ( nOpt1 & KEYOPT_EMK_NC_OFF) == 0)
+      bOption = true ;  
+
+  // Esecuzione
+   if ( bMinTime  &&  bCurrTime  &&  bKey  &&  bOption) {
 
      // emetto info di log
       { string sOut = "Generator Run : " + sCncFile ;
@@ -79,6 +92,11 @@ Generator::Run( const string& sCncFile, const string& sInfo)
       return bOk ;
    }
 
+  // cancello l'eventuale file di uscita (e anche il file errore)
+   EraseFile( sCncFile) ;
+   string sErrFile = ChangeFileExtension( sCncFile, ERR_EXT) ;
+   EraseFile( sErrFile) ;
+
   // Generazione non abilitata
    m_pMchMgr->SetLastError( 1000, "NC_OFF") ;
    std::string sErr = "Warning on Key (MKC/NCO)" ;