diff --git a/DllMain.h b/DllMain.h
index db8ec82..bad65e2 100644
--- a/DllMain.h
+++ b/DllMain.h
@@ -20,3 +20,4 @@
 //-----------------------------------------------------------------------------
 ILogger* GetEGrLogger( void) ;
 const std::string& GetEGrKey( void) ;
+bool GetEGrNetHwKey( void) ;
diff --git a/EGrDllMain.cpp b/EGrDllMain.cpp
index 0e8b1df..16db938 100644
--- a/EGrDllMain.cpp
+++ b/EGrDllMain.cpp
@@ -89,6 +89,7 @@ GetEGrLogger( void)
 
 //-----------------------------------------------------------------------------
 static std::string s_sKey ;
+static bool s_bNetHwKey = false ;
 
 //-----------------------------------------------------------------------------
 void
@@ -97,9 +98,23 @@ SetEGrKey( const std::string& sKey)
    s_sKey = sKey ;
 }
 
+//-----------------------------------------------------------------------------
+void
+SetEGrNetHwKey( bool bNetHwKey)
+{
+   s_bNetHwKey = bNetHwKey ;
+}
+
 //-----------------------------------------------------------------------------
 const std::string&
 GetEGrKey( void)
 {
    return s_sKey ;
 }
+
+//-----------------------------------------------------------------------------
+bool
+GetEGrNetHwKey( void)
+{
+   return s_bNetHwKey ;
+}
diff --git a/EgtGraphics.rc b/EgtGraphics.rc
index 072447c..e470297 100644
Binary files a/EgtGraphics.rc and b/EgtGraphics.rc differ
diff --git a/ImageMgr.cpp b/ImageMgr.cpp
index eee8785..b603071 100644
--- a/ImageMgr.cpp
+++ b/ImageMgr.cpp
@@ -29,8 +29,10 @@ IEgrImageMgr*
 CreateEgrImageMgr( void)
 {
   // verifico la chiave e le opzioni
-   if ( ! TestKeyForEGr( GetEGrKey(), 0, GetEGrLogger()))
-      return nullptr ;
+   if ( ! GetEGrNetHwKey()) {
+      if ( ! TestKeyForEGr( GetEGrKey(), 0, GetEGrLogger()))
+         return nullptr ;
+   }
   // creo l'oggetto
    return static_cast<IEgrImageMgr*> ( new(nothrow) ImageMgr) ;
 }
diff --git a/SceneBasic.cpp b/SceneBasic.cpp
index 1da3aa5..9aa2634 100644
--- a/SceneBasic.cpp
+++ b/SceneBasic.cpp
@@ -38,8 +38,10 @@ IEGrScene*
 CreateEGrScene( void)
 {
   // verifico la chiave e le opzioni
-   if ( ! TestKeyForEGr( GetEGrKey(), 0, GetEGrLogger()))
-      return nullptr ;
+   if ( ! GetEGrNetHwKey()) {
+      if ( ! TestKeyForEGr( GetEGrKey(), 0, GetEGrLogger()))
+         return nullptr ;
+   }
   // creo l'oggetto
    return static_cast<IEGrScene*> ( new(nothrow) Scene) ;
 }