diff --git a/MtApi5/Mt5CommandType.cs b/MtApi5/Mt5CommandType.cs
index 522a6d8c..9d1282c1 100755
--- a/MtApi5/Mt5CommandType.cs
+++ b/MtApi5/Mt5CommandType.cs
@@ -238,12 +238,12 @@ namespace MtApi5
 
         //Checkup
         GetLastError                        = 132,
-        TerminalInfoString                  = 153, //TODO
-        TerminalInfoInteger                 = 204, //TODO
-        TerminalInfoDouble                  = 205, //TODO
+        TerminalInfoString                  = 153,
+        TerminalInfoInteger                 = 204,
+        TerminalInfoDouble                  = 205,
 
         //Common Functions
-        Alert                               = 136,  //TODO
+        Alert                               = 136,
         Comment                             = 137,  //TODO
         GetTickCount                        = 138,  //TODO
         GetMicrosecondCount                 = 139,  //TODO
diff --git a/MtApi5/MtApi5Client.cs b/MtApi5/MtApi5Client.cs
index cdf43c96..12682b71 100755
--- a/MtApi5/MtApi5Client.cs
+++ b/MtApi5/MtApi5Client.cs
@@ -2152,16 +2152,27 @@ namespace MtApi5
 
 
         #region Common Functions
+
         ///<summary>
         ///It enters a message in the Expert Advisor log.
         ///</summary>
-        ///<param name="message">Symbol name.</param>
+        ///<param name="message">Message</param>
         public bool Print(string message)
         {
             var commandParameters = new ArrayList { message };
-
             return SendCommand<bool>(Mt5CommandType.Print, commandParameters);
         }
+
+        ///<summary>
+        ///Displays a message in a separate window.
+        ///</summary>
+        ///<param name="message">Message</param>
+        public void Alert(string message)
+        {
+            var commandParameters = new ArrayList { message };
+            SendCommand<object>(Mt5CommandType.Alert, commandParameters);
+        }
+
         #endregion // Common Functions
 
         #region Object Functions
diff --git a/TestClients/MtApi5TestClient/MainWindow.xaml b/TestClients/MtApi5TestClient/MainWindow.xaml
index 9b5cb2d4..8e3c9a73 100755
--- a/TestClients/MtApi5TestClient/MainWindow.xaml
+++ b/TestClients/MtApi5TestClient/MainWindow.xaml
@@ -526,12 +526,16 @@
                     </WrapPanel>
 
                     <Grid Margin="10" Grid.Row="1">
-                        <Grid.ColumnDefinitions>
-                            <ColumnDefinition Width="*"/>
-                            <ColumnDefinition Width="Auto"/>
-                        </Grid.ColumnDefinitions>
-                        <TextBox Grid.Column="0" Text="{Binding MessageText}" Margin="5"/>
-                        <Button Grid.Column="1" Command="{Binding PrintCommand}" Content="Print" Margin="5"/>
+                        <Grid.RowDefinitions>
+                            <RowDefinition Height="Auto"/>
+                            <RowDefinition Height="Auto"/>
+                        </Grid.RowDefinitions>
+                        <TextBox Grid.Row="0" Text="{Binding MessageText}" Margin="2"/>
+                        <StackPanel Grid.Row="1" Orientation="Horizontal" HorizontalAlignment="Right">
+                            <Button Command="{Binding PrintCommand}" Content="Print" Margin="2" />
+                            <Button Command="{Binding AlertCommand}" Content="Alert" Margin="2" />
+                        </StackPanel>
+                        
                     </Grid>
                 </Grid>
             </TabItem>
diff --git a/TestClients/MtApi5TestClient/ViewModel.cs b/TestClients/MtApi5TestClient/ViewModel.cs
index 4978dc47..fb9bc8b3 100755
--- a/TestClients/MtApi5TestClient/ViewModel.cs
+++ b/TestClients/MtApi5TestClient/ViewModel.cs
@@ -70,6 +70,7 @@ namespace MtApi5TestClient
         public DelegateCommand GetLastErrorCommand { get; private set; }
         public DelegateCommand ResetLastErrorCommand { get; private set; }
         public DelegateCommand PrintCommand { get; private set; }
+        public DelegateCommand AlertCommand { get; private set; }
 
         public DelegateCommand iCustomCommand { get; private set; }
 
@@ -425,6 +426,7 @@ namespace MtApi5TestClient
             PositionOpenCommand = new DelegateCommand(ExecutePositionOpen);
 
             PrintCommand = new DelegateCommand(ExecutePrint);
+            AlertCommand = new DelegateCommand(ExecuteAlert);
             GetLastErrorCommand = new DelegateCommand(ExecuteGetLastError);
             ResetLastErrorCommand = new DelegateCommand(ExecuteResetLastError);
 
@@ -1136,6 +1138,14 @@ namespace MtApi5TestClient
             AddLog($"Print: message print in MetaTrader - {retVal}");
         }
 
+        private void ExecuteAlert(object obj)
+        {
+            var message = MessageText;
+
+            _mtApiClient.Alert(message);
+            AddLog($"Alert: send alert to MetaTrader - {message}.");
+        }
+
         private async void ExecuteGetLastError(object obj)
         {
             var retVal = await Execute(() => _mtApiClient.GetLastError());
diff --git a/mq5/MtApi5.ex5 b/mq5/MtApi5.ex5
index 90c33782..b3725649 100755
Binary files a/mq5/MtApi5.ex5 and b/mq5/MtApi5.ex5 differ
diff --git a/mq5/MtApi5.mq5 b/mq5/MtApi5.mq5
index 373cf2ae..f8099c95 100644
--- a/mq5/MtApi5.mq5
+++ b/mq5/MtApi5.mq5
@@ -708,6 +708,9 @@ int executeCommand()
    case 132: //GetLastError
       Execute_GetLastError();
    break;
+   case 136: //Alert
+      Execute_Alert();
+   break;
    case 143: //ResetLastError
       Execute_ResetLastError();
    break;
@@ -759,7 +762,8 @@ int executeCommand()
       return;                                                                                                                                                     \
    }                                                                                                                                                              \
 
-#define GET_INTEGER_VALUE(argument_id, argument, cmd_name, param_name) GET_VALUE_OR_RETURN_WITH_SENDING_ERROR(getIntValue, argument_id, argument, cmd_name, param_name)
+#define GET_INT_VALUE(argument_id, argument, cmd_name, param_name) GET_VALUE_OR_RETURN_WITH_SENDING_ERROR(getIntValue, argument_id, argument, cmd_name, param_name)
+#define GET_STRING_VALUE(argument_id, argument, cmd_name, param_name) GET_VALUE_OR_RETURN_WITH_SENDING_ERROR(getStringValue, argument_id, argument, cmd_name, param_name)
 
 
 #define SEND_RESPONSE_OR_PRINT_ERROR(send_func, response, cmd_name) if (!send_func(ExpertHandle, response, _response_error)) \
@@ -942,7 +946,7 @@ void Execute_OrderCalcProfit()
 void Execute_PositionGetTicket()
 {
    int index;
-   GET_INTEGER_VALUE(0, index, "PositionGetTicket", "index");
+   GET_INT_VALUE(0, index, "PositionGetTicket", "index");
 
 #ifdef __DEBUG_LOG__
    PrintFormat("%s: index = %d", __FUNCTION__, index);
@@ -5533,7 +5537,7 @@ void Execute_TimeGMT()
 void Execute_IndicatorRelease()
 {
    int indicator_handle;
-   GET_INTEGER_VALUE(0, indicator_handle, "IndicatorRelease", "indicator_handle");
+   GET_INT_VALUE(0, indicator_handle, "IndicatorRelease", "indicator_handle");
    
 #ifdef __DEBUG_LOG__
    PrintFormat("%s: indicator_handle = %d", __FUNCTION__, indicator_handle);
@@ -5556,6 +5560,25 @@ void Execute_GetLastError()
    SEND_INT_RESPONSE(last_error, "GetLastError");
 }
 
+void Execute_Alert()
+{
+   string message;
+   StringInit(message, 1000);
+   
+   GET_STRING_VALUE(0, message, "Alert", "message");
+   
+#ifdef __DEBUG_LOG__
+   PrintFormat("%s: message = %s", __FUNCTION__, message);
+#endif
+
+   Alert(message);
+
+   if (!sendVoidResponse(ExpertHandle, _error))
+   {
+      PrintResponseError("Alert", _response_error);
+   }
+}
+
 void Execute_ResetLastError()
 {
    ResetLastError();