diff --git a/EXE_General.cpp b/EXE_General.cpp
index e9158e9..7be2bd7 100644
--- a/EXE_General.cpp
+++ b/EXE_General.cpp
@@ -189,6 +189,10 @@ ExeExit( void)
       s_pGenLog = nullptr ;
    }
 
+  // libero eventuale chiave di rete
+   if ( s_bNetHwKey)
+      CloseNetHwKey() ;
+
    return true ;
 }
 
@@ -256,11 +260,43 @@ ExeSetLockType( int nType)
 
 //-----------------------------------------------------------------------------
 bool
-ExeSetNetHwKey( bool bNetHwKey)
+ExeSetLockId( string sLockId)
+{
+  // divido in tre parti XXX-YYY-ZZZ
+   STRVECTOR vsTok ;
+   Tokenize( sLockId, "-", vsTok) ;
+   if ( vsTok.size() != 3)
+      return false ;
+  // se chiave software
+   if ( vsTok[0] != KEY_LOCK_HW_START) {
+      ExeSetNetHwKey( false) ;
+      return ( s_nKeyType != KEY_LOCK_TYPE_HW) ;
+   }
+  // se chiave locale
+   if (vsTok[1].front() != '1') {
+      ExeSetNetHwKey( false) ;
+      return true ;
+   }
+  // altrimenti chiave di rete
+   int nKey ;
+   if ( ! FromString( vsTok[1], nKey)) {
+      ExeSetNetHwKey( false) ;
+      return false ;
+   }
+   int nUserId = ( nKey % 10) ;
+   if ( nKey < 100110)
+      nUserId = 0 ;
+   ExeSetNetHwKey( true, nUserId) ;
+   return true ;
+}
+
+//-----------------------------------------------------------------------------
+bool
+ExeSetNetHwKey( bool bNetHwKey, int nUserId)
 {
    s_bNetHwKey = bNetHwKey ;
    SetEGnNetHwKey( s_bNetHwKey) ;
-   return SetNetHwKey( bNetHwKey) ;
+   return SetNetHwKey( bNetHwKey, nUserId) ;
 }
 
 //-----------------------------------------------------------------------------