diff --git a/MtApi5/Mt5CommandType.cs b/MtApi5/Mt5CommandType.cs
index 3ffd8dbc..7daef3e4 100755
--- a/MtApi5/Mt5CommandType.cs
+++ b/MtApi5/Mt5CommandType.cs
@@ -251,6 +251,7 @@ namespace MtApi5
         GlobalVariablesTotal                = 158,
 
         UnlockTicks                         = 159,
-        PositionCloseAll                    = 160
+        PositionCloseAll                    = 160,
+        TesterStop                          = 161
     }
 }
diff --git a/MtApi5/MtApi5Client.cs b/MtApi5/MtApi5Client.cs
index 9ec3e965..39723d67 100755
--- a/MtApi5/MtApi5Client.cs
+++ b/MtApi5/MtApi5Client.cs
@@ -2081,6 +2081,14 @@ namespace MtApi5
             SendCommand<object>(Mt5CommandType.Alert, commandParameters);
         }
 
+        ///<summary>
+        ///Gives program operation completion command when testing.
+        ///</summary>
+        public void TesterStop()
+        {
+            SendCommand<object>(Mt5CommandType.TesterStop, null);
+        }
+
         #endregion // Common Functions
 
         #region Object Functions
diff --git a/TestClients/MtApi5TestClient/MainWindow.xaml b/TestClients/MtApi5TestClient/MainWindow.xaml
index 996cd4ec..64baf401 100755
--- a/TestClients/MtApi5TestClient/MainWindow.xaml
+++ b/TestClients/MtApi5TestClient/MainWindow.xaml
@@ -582,6 +582,7 @@
                         <WrapPanel VerticalAlignment="Top" Margin="5">
                             <Button Command="{Binding GetLastErrorCommand}" Content="GetLastError" Margin="2"/>
                             <Button Command="{Binding ResetLastErrorCommand}" Content="ResetLastError" Margin="2"/>
+                            <Button Command="{Binding TesterStopCommand}" Content="TesterStop" Margin="2"/>
                         </WrapPanel>
 
                         <Button Grid.Row="1" Content="UnlockTicks" HorizontalAlignment="Left" Margin="5" Command="{Binding UnlockTicksCommand}"/>
diff --git a/TestClients/MtApi5TestClient/ViewModel.cs b/TestClients/MtApi5TestClient/ViewModel.cs
index 1b6a633a..f9131c2d 100755
--- a/TestClients/MtApi5TestClient/ViewModel.cs
+++ b/TestClients/MtApi5TestClient/ViewModel.cs
@@ -73,6 +73,7 @@ namespace MtApi5TestClient
         public DelegateCommand ResetLastErrorCommand { get; private set; }
         public DelegateCommand PrintCommand { get; private set; }
         public DelegateCommand AlertCommand { get; private set; }
+        public DelegateCommand TesterStopCommand { get; private set; }
 
         public DelegateCommand iCustomCommand { get; private set; }
 
@@ -382,6 +383,7 @@ namespace MtApi5TestClient
             AlertCommand = new DelegateCommand(ExecuteAlert);
             GetLastErrorCommand = new DelegateCommand(ExecuteGetLastError);
             ResetLastErrorCommand = new DelegateCommand(ExecuteResetLastError);
+            TesterStopCommand = new DelegateCommand(ExecuteTesterStop);
 
             iCustomCommand = new DelegateCommand(ExecuteICustom);
 
@@ -1169,6 +1171,12 @@ namespace MtApi5TestClient
             AddLog("ResetLastError: executed.");
         }
 
+        private void ExecuteTesterStop(object obj)
+        {
+            _mtApiClient.TesterStop();
+            AddLog("TesterStop: executed.");
+        }
+
         private async void ExecuteICustom(object o)
         {
             const string symbol = "EURUSD";
diff --git a/mq5/MtApi5.ex5 b/mq5/MtApi5.ex5
index a0164b2e..0e98b19d 100755
Binary files a/mq5/MtApi5.ex5 and b/mq5/MtApi5.ex5 differ
diff --git a/mq5/MtApi5.mq5 b/mq5/MtApi5.mq5
index e7dbe9a3..a6b08a39 100644
--- a/mq5/MtApi5.mq5
+++ b/mq5/MtApi5.mq5
@@ -791,6 +791,9 @@ int executeCommand()
    case 160: //PositionCloseAll
       Execute_PositionCloseAll();
    break;
+   case 161: //TesterStop
+      Execute_TesterStop();
+   break;   
    case 204: //TerminalInfoInteger
       Execute_TerminalInfoInteger();
    break;
@@ -6507,6 +6510,24 @@ void Execute_PositionCloseAll()
    SEND_INT_RESPONSE(res)
 }
 
+void Execute_TesterStop()
+{
+   if (!IsTesting())
+   {
+      Print("WARNING: function UnlockTicks can be used only for backtesting");
+   }
+   else
+   {
+      Print("TesterStop called.");
+      TesterStop();
+   }
+
+   if (!sendVoidResponse(ExpertHandle, _response_error))
+   {
+      PrintResponseError("TesterStop", _response_error);
+   }   
+}
+
 void Execute_TerminalInfoInteger()
 {
    int propertyId;