diff --git a/Form1.vb b/Form1.vb
index 7fd2ff5..a19e1ff 100644
--- a/Form1.vb
+++ b/Form1.vb
@@ -40,7 +40,8 @@ Public Class Form1
    Private WithEvents m_Controller As New Controller
    Private m_MruFiles As New MruList
    Private m_MruScripts As New MruList
-   Private m_bStopExec As Boolean = False
+   Private m_bScriptRunning As Boolean = False
+   Private m_bStopScript As Boolean = False
    Private m_ProcEventsCallback As New ProcessEventsCallback(AddressOf ProcessEvents)
    Private m_OutTextCallback As New OutTextCallback(AddressOf OutText)
 
@@ -395,7 +396,13 @@ Public Class Form1
    End Sub
 
    Private Sub Form1_FormClosing(sender As System.Object, e As FormClosingEventArgs) Handles MyBase.FormClosing
-      ' gestisco eventuale file corrente modificato
+      ' Impedisco uscita se script in esecuzione
+      If m_bScriptRunning Then
+         m_bStopScript = True
+         e.Cancel = True
+         Return
+      End If
+      ' Gestisco eventuale file corrente modificato
       If Not m_Controller.ManageModified() Then
          e.Cancel = True
          Return
@@ -573,12 +580,15 @@ Public Class Form1
    Private Sub OnExecutingScript(ByVal sender As Object) Handles m_Controller.OnExecutingScript
       ClearObjTree()
       ' Abilito progress e bottone stop
-      m_bStopExec = False
-      tsStatusStop.Enabled = True
       tsStatusProgress.Value = 0
+      tsStatusStop.Enabled = True
+      m_bStopScript = False
+      ' Dichiaro script in esecuzione
+      m_bScriptRunning = True
    End Sub
 
    Private Sub OnExecutedScript(ByVal sender As Object, ByVal sFile As String, ByVal bOk As Boolean, ByVal sError As String) Handles m_Controller.OnExecutedScript
+      ' Salvo path dello script in lista recenti
       WritePrivateProfileString(S_GENERAL, K_LASTLUADIR, Path.GetDirectoryName(sFile), m_sIniFile)
       If bOk Then
          m_MruScripts.Add(sFile)
@@ -587,8 +597,10 @@ Public Class Form1
          MessageBox.Show(sError, EgtMsg(10001), MessageBoxButtons.OK, MessageBoxIcon.Error)     ' Error
       End If
       ' Disabilito progress e bottone stop
-      tsStatusStop.Enabled = False
       tsStatusProgress.Value = 0
+      tsStatusStop.Enabled = False
+      ' Dichiaro terminata esecuzione script
+      m_bScriptRunning = False
    End Sub
 
    Private Sub OnPrepareInputBox(ByVal sTitle As String, ByVal sLabel As String, ByVal sCheckLabel As String,
@@ -796,7 +808,8 @@ Public Class Form1
       ' Eventuale attesa
       Thread.Sleep(nPause)
       ' Ritorno eventuale stop
-      If m_bStopExec Then
+      If m_bStopScript Then
+         m_bStopScript = False
          Return 0
       Else
          Return 1
@@ -1863,7 +1876,7 @@ Public Class Form1
   End Sub
 
    Private Sub ToolStripStatusStop_Click() Handles tsStatusStop.Click
-      m_bStopExec = True
+      m_bStopScript = True
    End Sub
 
 
diff --git a/My Project/AssemblyInfo.vb b/My Project/AssemblyInfo.vb
index 8f86759..f10a931 100644
--- a/My Project/AssemblyInfo.vb	
+++ b/My Project/AssemblyInfo.vb	
@@ -46,5 +46,5 @@ Imports System.Runtime.InteropServices
 ' utilizzando l'asterisco (*) come descritto di seguito:
 ' <Assembly: AssemblyVersion("1.0.*")> 
 
-<Assembly: AssemblyVersion("1.6.18.3")> 
-<Assembly: AssemblyFileVersion("1.6.18.3")> 
+<Assembly: AssemblyVersion("1.6.18.7")> 
+<Assembly: AssemblyFileVersion("1.6.18.7")>