diff --git a/EGkProjectCurveSurfTm.h b/EGkProjectCurveSurfTm.h
index cbf8319..368e65d 100644
--- a/EGkProjectCurveSurfTm.h
+++ b/EGkProjectCurveSurfTm.h
@@ -13,6 +13,7 @@
 
 #pragma once
 
+#include "/EgtDev/Include/EGkGeoPoint3d.h"
 #include "/EgtDev/Include/EGkCurve.h"
 #include "/EgtDev/Include/EGkSurfTriMesh.h"
 
@@ -44,5 +45,9 @@ typedef std::vector<Point5ax>        PNT5AXVECTOR ;    // vettore di Punti 5assi
 // Proiezione di una curva su una superficie TriMesh lungo la direzione data.
 EGK_EXPORT bool ProjectCurveOnSurfTm( const ICurve& crCrv, const ISurfTriMesh& tmSurf, const Vector3d& vtDir,
                                       double dLinTol, double dMaxSegmLen, PNT5AXVECTOR& vPt5ax) ;
+EGK_EXPORT bool ProjectCurveOnSurfTm( const ICurve& crCrv, const ISurfTriMesh& tmSurf, const IGeoPoint3d& gpRef,
+                                      double dLinTol, double dMaxSegmLen, PNT5AXVECTOR& vPt5ax) ;
 EGK_EXPORT bool ProjectCurveOnSurfTm( const ICurve& crCrv, const ISurfTriMesh& tmSurf, const ICurve& crRef,
                                       double dLinTol, double dMaxSegmLen, PNT5AXVECTOR& vPt5ax) ;
+EGK_EXPORT bool ProjectCurveOnSurfTm( const ICurve& crCrv, const ISurfTriMesh& tmSurf, const ISurfTriMesh& tmRef,
+                                      double dLinTol, double dMaxSegmLen, PNT5AXVECTOR& vPt5ax) ;
diff --git a/EGkSurfLocal.h b/EGkSurfLocal.h
index 163f45c..42a76d5 100644
--- a/EGkSurfLocal.h
+++ b/EGkSurfLocal.h
@@ -1,7 +1,7 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2017-2017
+//  EgalTech 2017-2024
 //----------------------------------------------------------------------------
-// File : EGkSurfLocal.h           Data : 29.03.17         Versione : 1.8c3
+// File : EGkSurfLocal.h           Data : 08.04.24         Versione : 2.6d2
 // Contenuto : Classe gestione superfici nel locale desiderato.
 //
 //
@@ -45,6 +45,25 @@ class SurfLocal
             m_pCopy->LocToLoc( frSrf, frLoc) ;
             m_pSrf = m_pCopy ;
          }
+      SurfLocal( const ISurf* pSurf, const Frame3d& frSrf, const Frame3d& frLoc)
+         : m_pSrf( nullptr), m_pCopy( nullptr)
+         { // verifica dei parametri
+            if ( pSurf == nullptr  ||  &frSrf == nullptr  ||  &frLoc == nullptr)
+               return ;
+           // assegno la superficie originale
+            m_pSrf = pSurf ;
+           // se i riferimenti coincidono non devo fare altro
+            if ( AreSameFrame( frSrf, frLoc))
+               return ;
+           // copio la superficie e la porto in locale
+            m_pCopy = m_pSrf->Clone() ;
+            if ( m_pCopy == nullptr) {
+               m_pSrf = nullptr ;
+               return ;
+            }
+            m_pCopy->LocToLoc( frSrf, frLoc) ;
+            m_pSrf = m_pCopy ;
+         }
       SurfLocal( const SurfLocal& Other)
          : m_pSrf( nullptr), m_pCopy( nullptr)
          { // se non devo clonare
diff --git a/EInAPI.h b/EInAPI.h
index e1e4345..6e0441f 100644
--- a/EInAPI.h
+++ b/EInAPI.h
@@ -59,6 +59,7 @@ EIN_EXPORT BOOL __stdcall EgtGetKeyOptions( int nProd, int nVer, int nLev, unsig
 EIN_EXPORT BOOL __stdcall EgtGetKeyLeftDays( int* pnLeftDays) ;
 EIN_EXPORT BOOL __stdcall EgtGetKeyAssLeftDays( int* pnAssLeftDays) ;
 EIN_EXPORT BOOL __stdcall EgtGetKeyOptLeftDays( int* pnOptLeftDays) ;
+EIN_EXPORT BOOL __stdcall EgtGetNetHwKey( void) ;
 EIN_EXPORT BOOL __stdcall EgtGetOsInfo( wchar_t*& wsOs) ;
 EIN_EXPORT BOOL __stdcall EgtGetCpuInfo( wchar_t*& wsCpu) ;
 EIN_EXPORT BOOL __stdcall EgtGetMemoryInfo( wchar_t*& wsMem) ;
diff --git a/EXeExecutor.h b/EXeExecutor.h
index 8c60832..2bf02af 100644
--- a/EXeExecutor.h
+++ b/EXeExecutor.h
@@ -64,6 +64,7 @@ EXE_EXPORT bool ExeGetKeyOptions( int nProd, int nVer, int nLev, unsigned int& n
 EXE_EXPORT bool ExeGetKeyLeftDays( int& nLeftDays) ;
 EXE_EXPORT bool ExeGetKeyAssLeftDays( int& nAssLeftDays) ;
 EXE_EXPORT bool ExeGetKeyOptLeftDays( int& nOptLeftDays) ;
+EXE_EXPORT bool ExeGetNetHwKey( void) ;
 EXE_EXPORT bool ExeGetOsInfo( std::string& sOs) ;
 EXE_EXPORT bool ExeGetCpuInfo( std::string& sCpu) ;
 EXE_EXPORT bool ExeGetMemoryInfo( std::string& sMem) ;
diff --git a/SELkKeyProc.h b/SELkKeyProc.h
index 673d6ac..84b5de9 100644
--- a/SELkKeyProc.h
+++ b/SELkKeyProc.h
@@ -44,3 +44,4 @@ const int KEY_ERR_VER = 5 ;
 const int KEY_ERR_LEV = 6 ;
 const int KEY_ERR_WRONG_TIME = 7 ;
 const int KEY_ERR_TIME = 8 ;
+const int KEY_ERR_NETKEY_NOTFOUND = 9 ;
diff --git a/SELkLockId.h b/SELkLockId.h
index f7a6b09..b8c2c0e 100644
--- a/SELkLockId.h
+++ b/SELkLockId.h
@@ -23,6 +23,8 @@ bool SetLockType( int nType) ;
 bool SetNetHwKey( bool bNetHwKey, int nUserId, const std::string& sAddrPort) ;
 // Libero chiave di rete (da eseguire al termine del programma)
 bool CloseNetHwKey( void) ;
+// Chiave di rete non trovata (il dispositivo non risponde)
+bool NotFoundNetHwKey( void) ;
 // Recupero l'identificativo in chiaro della protezione
 bool GetLockId( std::string& sLockId) ;
 // Recupero l'identificativo cifrato della protezione