diff --git a/MtApi5/MtApi5Client.cs b/MtApi5/MtApi5Client.cs
index edb1b316..bafe7d85 100755
--- a/MtApi5/MtApi5Client.cs
+++ b/MtApi5/MtApi5Client.cs
@@ -1888,8 +1888,7 @@ namespace MtApi5
 
         private void OnConnected()
         {
-            // INFO: disabled backtesting mode while solution of window handle in testing mode is not found
-            //_isBacktestingMode = IsTestMode();
+            _isBacktestingMode = IsTesting();
 
             if (_isBacktestingMode)
             {
diff --git a/mq5/MtApi5.ex5 b/mq5/MtApi5.ex5
index dfaf7b15..468ee90b 100755
Binary files a/mq5/MtApi5.ex5 and b/mq5/MtApi5.ex5 differ
diff --git a/mq5/MtApi5.mq5 b/mq5/MtApi5.mq5
index 7eaeb7da..ed23d8a9 100755
--- a/mq5/MtApi5.mq5
+++ b/mq5/MtApi5.mq5
@@ -92,6 +92,7 @@ bool IsDemo()
 bool IsTesting()
 {  
    bool isTesting = MQLInfoInteger(MQL_TESTER);
+   PrintFormat("IsTesting: %s", isTesting ? "true" : "false");
    return isTesting;
 }
 
@@ -143,25 +144,22 @@ int init()
    PrintFormat("Expert Handle = %d", ExpertHandle);
    
    //--- Backtesting mode
-   if (false)
-   {
-       if (IsTesting())
-       {      
-          Print("Waiting on remote client...");
-          //wait for command (BacktestingReady) from remote side to be ready for work
-          while(!IsRemoteReadyForTesting)
+    if (IsTesting())
+    {      
+       Print("Waiting on remote client...");
+       //wait for command (BacktestingReady) from remote side to be ready for work
+       while(!IsRemoteReadyForTesting)
+       {
+          executeCommand();
+          
+          //This section uses a while loop to simulate Sleep() during Backtest.
+          unsigned int viSleepUntilTick = GetTickCount() + 100; //100 milliseconds
+          while(GetTickCount() < viSleepUntilTick) 
           {
-             executeCommand();
-             
-             //This section uses a while loop to simulate Sleep() during Backtest.
-             unsigned int viSleepUntilTick = GetTickCount() + 100; //100 milliseconds
-             while(GetTickCount() < viSleepUntilTick) 
-             {
-                //Do absolutely nothing. Just loop until the desired tick is reached.
-             }
+             //Do absolutely nothing. Just loop until the desired tick is reached.
           }
        }
-   }
+    }
    //--- 
 
    return (0);