diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index f56203f..73ba95a 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ
diff --git a/LUA_General.cpp b/LUA_General.cpp
index 1066edb..4ffcf0e 100644
--- a/LUA_General.cpp
+++ b/LUA_General.cpp
@@ -178,11 +178,11 @@ LuaSplitStringPlus( lua_State* L)
   // 2 parametri : sVal, sHea
    string sVal ;
    string sHea ;
-   bool bFound = LuaGetParam( L, 1, sVal) ;
-   LuaCheckParam( L, 2, sHea)
+   bool bOk = LuaGetParam( L, 1, sVal)  &&
+              LuaGetParam( L, 2, sHea) ;
    LuaClearStack( L) ;
-  // se ricevuta stringa, la divido in parti conservandone le intestazioni
-   if ( bFound) {
+  // se ricevute stringhe, divido la prima in parti con intestazioni della seconda (che conservo)
+   if ( bOk) {
       STRVECTOR vsVal ;
       TokenizePlus( sVal, sHea, vsVal) ;
      // ritorno il risultato
@@ -194,6 +194,25 @@ LuaSplitStringPlus( lua_State* L)
    return 1 ;
 }
 
+//-------------------------------------------------------------------------------
+static int
+LuaReplaceString( lua_State* L)
+{
+  // 3 parametri : sVal, sOld, sNew
+   string sVal ;
+   LuaCheckParam( L, 1, sVal)
+   string sOld ;
+   LuaCheckParam( L, 2, sOld)
+   string sNew ;
+   LuaCheckParam( L, 3, sNew)
+   LuaClearStack( L) ;
+  // eseguo sostituzione nella stringa della sequenza indicata dal secondo parametro con quella del terzo
+   int nRes = ReplaceString( sVal, sOld, sNew) ;
+  // restituisco il risultato
+   LuaSetParam( L, sVal) ;
+   LuaSetParam( L, nRes) ;
+   return 2 ;
+}
 //-------------------------------------------------------------------------------
 static int
 LuaSetVal( lua_State* L)
@@ -1245,6 +1264,7 @@ LuaInstallGeneral( LuaMgr& luaMgr)
    bOk = bOk && luaMgr.RegisterFunction( "EgtNumToString", LuaNumToString) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtSplitString", LuaSplitString) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtSplitStringPlus", LuaSplitStringPlus) ;
+   bOk = bOk && luaMgr.RegisterFunction( "EgtReplaceString", LuaReplaceString) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtSetVal", LuaSetVal) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtGetVal", LuaGetVal) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtGetUUID", LuaGetUUID) ;