diff --git a/EXE_MachMgr.cpp b/EXE_MachMgr.cpp
index 183a5fa..61e062e 100644
--- a/EXE_MachMgr.cpp
+++ b/EXE_MachMgr.cpp
@@ -66,6 +66,28 @@ ExeInsertMachMgr( int nInsGrp)
    return pMachMgr->Insert( nInsGrp) ;
 }
 
+//-----------------------------------------------------------------------------
+//   Errors
+//-----------------------------------------------------------------------------
+int
+ExeGetLastMachMgrErrorId( void)
+{
+   IMachMgr* pMachMgr = GetCurrMachMgr() ;
+   VERIFY_MACHMGR( pMachMgr, 1)
+  // restituisco l'errore
+   return pMachMgr->GetLastErrorId() ;
+}
+
+//-----------------------------------------------------------------------------
+string
+ExeGetLastMachMgrErrorString( void)
+{
+   IMachMgr* pMachMgr = GetCurrMachMgr() ;
+   VERIFY_MACHMGR( pMachMgr, "MachMgr invalid")
+  // restituisco l'errore
+   return pMachMgr->GetLastErrorString() ;
+}
+
 //-----------------------------------------------------------------------------
 //   Machines
 //-----------------------------------------------------------------------------
diff --git a/EgtExecutor.rc b/EgtExecutor.rc
index fead5c3..ac18c27 100644
Binary files a/EgtExecutor.rc and b/EgtExecutor.rc differ
diff --git a/LUA_MachMgr.cpp b/LUA_MachMgr.cpp
index 171076a..b6f8bf0 100644
--- a/LUA_MachMgr.cpp
+++ b/LUA_MachMgr.cpp
@@ -22,6 +22,23 @@
 
 using namespace std ;
 
+//-------------------------------------------------------------------------------
+//    Errors
+//-------------------------------------------------------------------------------
+static int
+LuaGetLastMachMgrError( lua_State* L)
+{
+  // nessun parametro
+   LuaClearStack( L) ;
+  // recupero identificativo e stringa dell'errore
+   int nErr = ExeGetLastMachMgrErrorId() ;
+   string sErr = ( nErr != 0 ? ExeGetLastMachMgrErrorString() : "") ;
+  // restituisco il risultato
+   LuaSetParam( L, nErr) ;
+   LuaSetParam( L, sErr) ;
+   return 2 ;
+}
+
 //-------------------------------------------------------------------------------
 //    Machines
 //-------------------------------------------------------------------------------
@@ -2964,6 +2981,8 @@ bool
 LuaInstallMachMgr( LuaMgr& luaMgr)
 {
    bool bOk = ( &luaMgr != nullptr) ;
+   // Errors
+   bOk = bOk && luaMgr.RegisterFunction( "EgtGetLastMachMgrError", LuaGetLastMachMgrError) ;
    // Machines
    bOk = bOk && luaMgr.RegisterFunction( "EgtSetCurrMachine", LuaSetCurrMachine) ;
    bOk = bOk && luaMgr.RegisterFunction( "EgtGetCurrMachineName", LuaGetCurrMachineName) ;