diff --git a/DllMain.h b/DllMain.h
index f96dcc4..db8ec82 100644
--- a/DllMain.h
+++ b/DllMain.h
@@ -15,6 +15,8 @@
 
 
 #include "/EgtDev/Include/EgtILogger.h"
+#include <string>
 
 //-----------------------------------------------------------------------------
 ILogger* GetEGrLogger( void) ;
+const std::string& GetEGrKey( void) ;
diff --git a/EGrDllMain.cpp b/EGrDllMain.cpp
index 691468f..0e8b1df 100644
--- a/EGrDllMain.cpp
+++ b/EGrDllMain.cpp
@@ -19,18 +19,14 @@
 #include "/EgtDev/Include/EgtTrace.h"
 
 //--------------------------- Costanti ----------------------------------------
-#if defined( _WIN64)
-   #if defined( _DEBUG)
-      const char* EGR_STR = "EgtGraphicsD64.dll ver. " ;
-   #else
-      const char* EGR_STR = "EgtGraphicsR64.dll ver. " ;
-   #endif
-#elif defined( _WIN32)
-   #if defined( _DEBUG)
-      const char* EGR_STR = "EgtGraphicsD32.dll ver. " ;
-   #else
-      const char* EGR_STR = "EgtGraphicsR32.dll ver. " ;
-   #endif
+#if defined( _WIN64)  &&  defined( _DEBUG)
+   const char* EGR_STR = "EgtGraphicsD64.dll ver. " ;
+#elif defined( _WIN64)
+   const char* EGR_STR = "EgtGraphicsR64.dll ver. " ;
+#elif defined( _WIN32)  &&  defined( _DEBUG)
+   const char* EGR_STR = "EgtGraphicsD32.dll ver. " ;
+#else
+   const char* EGR_STR = "EgtGraphicsR32.dll ver. " ;
 #endif
 const int STR_DIM = 40 ;
 
@@ -90,3 +86,20 @@ GetEGrLogger( void)
 {
    return s_pLogger ;
 }
+
+//-----------------------------------------------------------------------------
+static std::string s_sKey ;
+
+//-----------------------------------------------------------------------------
+void
+SetEGrKey( const std::string& sKey)
+{
+   s_sKey = sKey ;
+}
+
+//-----------------------------------------------------------------------------
+const std::string&
+GetEGrKey( void)
+{
+   return s_sKey ;
+}
diff --git a/EgtGraphics.rc b/EgtGraphics.rc
index a04bef4..967d0cd 100644
Binary files a/EgtGraphics.rc and b/EgtGraphics.rc differ
diff --git a/EgtGraphics.vcxproj.filters b/EgtGraphics.vcxproj.filters
index 7ebd736..3c0e414 100644
--- a/EgtGraphics.vcxproj.filters
+++ b/EgtGraphics.vcxproj.filters
@@ -13,6 +13,9 @@
       <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
       <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
     </Filter>
+    <Filter Include="File di intestazione\Include">
+      <UniqueIdentifier>{8f14972c-68c0-465e-8939-e4ee1eeef53a}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="stdafx.h">
@@ -21,56 +24,56 @@
     <ClInclude Include="resource.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
-    <ClInclude Include="..\Include\EGrDllMain.h">
-      <Filter>File di intestazione</Filter>
-    </ClInclude>
     <ClInclude Include="Scene.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
-    <ClInclude Include="..\Include\EGrScene.h">
-      <Filter>File di intestazione</Filter>
-    </ClInclude>
     <ClInclude Include="GraphObjs.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
     <ClInclude Include="OpenGL.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
-    <ClInclude Include="..\Include\EgkObjGraphics.h">
-      <Filter>File di intestazione</Filter>
-    </ClInclude>
-    <ClInclude Include="..\Include\EGkGdbIterator.h">
-      <Filter>File di intestazione</Filter>
-    </ClInclude>
     <ClInclude Include="ObjOldGraphics.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
     <ClInclude Include="ObjNewGraphics.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
-    <ClInclude Include="..\Include\EGkPolyLine.h">
-      <Filter>File di intestazione</Filter>
-    </ClInclude>
     <ClInclude Include="ObjEGrGraphics.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
     <ClInclude Include="DllMain.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
-    <ClInclude Include="..\Include\EGrSceExecutor.h">
-      <Filter>File di intestazione</Filter>
-    </ClInclude>
     <ClInclude Include="SceExecutor.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
     <ClInclude Include="..\Include\EGkColor.h">
-      <Filter>File di intestazione</Filter>
+      <Filter>File di intestazione\Include</Filter>
     </ClInclude>
-    <ClInclude Include="..\Include\EGkTriangle3d.h">
-      <Filter>File di intestazione</Filter>
+    <ClInclude Include="..\Include\EGkGdbIterator.h">
+      <Filter>File di intestazione\Include</Filter>
     </ClInclude>
     <ClInclude Include="..\Include\EGkMaterial.h">
-      <Filter>File di intestazione</Filter>
+      <Filter>File di intestazione\Include</Filter>
+    </ClInclude>
+    <ClInclude Include="..\Include\EgkObjGraphics.h">
+      <Filter>File di intestazione\Include</Filter>
+    </ClInclude>
+    <ClInclude Include="..\Include\EGkPolyLine.h">
+      <Filter>File di intestazione\Include</Filter>
+    </ClInclude>
+    <ClInclude Include="..\Include\EGkTriangle3d.h">
+      <Filter>File di intestazione\Include</Filter>
+    </ClInclude>
+    <ClInclude Include="..\Include\EGrDllMain.h">
+      <Filter>File di intestazione\Include</Filter>
+    </ClInclude>
+    <ClInclude Include="..\Include\EGrSceExecutor.h">
+      <Filter>File di intestazione\Include</Filter>
+    </ClInclude>
+    <ClInclude Include="..\Include\EGrScene.h">
+      <Filter>File di intestazione\Include</Filter>
     </ClInclude>
     <ClInclude Include="EGrUtils.h">
       <Filter>File di intestazione</Filter>
diff --git a/SceneBasic.cpp b/SceneBasic.cpp
index 84c70ff..b9c7371 100644
--- a/SceneBasic.cpp
+++ b/SceneBasic.cpp
@@ -21,6 +21,8 @@
 #include "/EgtDev/Include/EGkFrame3d.h"
 #include "/EgtDev/Include/EGkGdbConst.h"
 #include "/EgtDev/Include/EGkGeomDB.h"
+#include "/EgtDev/Include/SELkKeyProc.h"
+#include "/EgtDev/Include/EgtKeyCodes.h"
 
 using namespace std ;
 
@@ -34,6 +36,22 @@ static const double MIN_ZCLIP_EXT = 5000 ;
 IEGrScene*
 CreateEGrScene( void)
 {
+  // verifico la chiave e le opzioni
+   unsigned int nOpt1, nOpt2 ;
+   int nOptExpDays ;
+   int nRet = GetKeyOptions( GetEGrKey(), KEY_BASELIB_PROD, KEY_BASELIB_VER, KEY_BASELIB_LEV,
+                             nOpt1, nOpt2, nOptExpDays) ;
+   if ( nRet != KEY_OK) {
+      string sErr = "Error on Key (GRC/" + ToString( nRet) + ")" ;
+      LOG_ERROR( GetEGrLogger(), sErr.c_str()) ;
+      return false ;
+   }
+   if ( (nOpt1 & KEYOPT_EGR_BASE) == 0  ||  nOptExpDays < GetCurrDay()) {
+      string sErr = "Error on Key (GRC/OPT)" ;
+      LOG_ERROR( GetEGrLogger(), sErr.c_str()) ;
+      return false ;
+   }
+  // creo l'oggetto
    return static_cast<IEGrScene*> ( new(nothrow) Scene) ;
 }
 
diff --git a/stdafx.h b/stdafx.h
index 360af94..17703b9 100644
--- a/stdafx.h
+++ b/stdafx.h
@@ -38,3 +38,4 @@
 
 #pragma comment(lib, EGTLIBDIR "EgtGeneral" EGTLIBVER ".lib")
 #pragma comment(lib, EGTLIBDIR "EgtGeomKernel" EGTLIBVER ".lib")
+#pragma comment(lib, EGTLIBDIR "SEgtLock" EGTLIBVER ".lib")