diff --git a/Tests/Cosmos.TestRunner.Core/Engine.Run.cs b/Tests/Cosmos.TestRunner.Core/Engine.Run.cs
index 4b6cdb19b..0102cdd27 100644
--- a/Tests/Cosmos.TestRunner.Core/Engine.Run.cs
+++ b/Tests/Cosmos.TestRunner.Core/Engine.Run.cs
@@ -17,8 +17,9 @@ namespace Cosmos.TestRunner.Core
         public int AllowedSecondsInKernel = 30;
         public List<RunTargetEnum> RunTargets = new List<RunTargetEnum>();
 
-        private void ExecuteKernel(string assemblyFileName, RunConfiguration configuration)
+        private bool ExecuteKernel(string assemblyFileName, RunConfiguration configuration)
         {
+            var xResult = true;
             OutputHandler.ExecuteKernelStart(assemblyFileName);
             try
             {
@@ -58,17 +59,21 @@ namespace Cosmos.TestRunner.Core
                 if (!mKernelResultSet)
                 {
                     OutputHandler.SetKernelTestResult(false, e.ToString());
+                    mKernelResult = false;
                 }
                 if (e is TaskFailedException)
                 {
-                    return;
+                    return mKernelResult;
                 }
                 OutputHandler.UnhandledException(e);
             }
             finally
             {
                 OutputHandler.ExecuteKernelEnd(assemblyFileName);
+
             }
+            xResult = mKernelResult;
+            return xResult;
         }
 
 
diff --git a/Tests/Cosmos.TestRunner.Core/Engine.Running.cs b/Tests/Cosmos.TestRunner.Core/Engine.Running.cs
index 61c97bf63..e9e313b53 100644
--- a/Tests/Cosmos.TestRunner.Core/Engine.Running.cs
+++ b/Tests/Cosmos.TestRunner.Core/Engine.Running.cs
@@ -101,6 +101,7 @@ namespace Cosmos.TestRunner.Core
         }
 
         private volatile bool mKernelResultSet;
+        private volatile bool mKernelResult;
         private int mSucceededAssertions;
 
         private void ChannelPacketReceived(byte arg1, byte arg2, byte[] arg3)
diff --git a/Tests/Cosmos.TestRunner.Core/Engine.cs b/Tests/Cosmos.TestRunner.Core/Engine.cs
index 890c02b27..9b74dff49 100644
--- a/Tests/Cosmos.TestRunner.Core/Engine.cs
+++ b/Tests/Cosmos.TestRunner.Core/Engine.cs
@@ -42,7 +42,7 @@ namespace Cosmos.TestRunner.Core
 
         public OutputHandlerBasic OutputHandler;
 
-        public void Execute()
+        public bool Execute()
         {
             if (OutputHandler == null)
             {
@@ -62,6 +62,7 @@ namespace Cosmos.TestRunner.Core
                     OutputHandler.RunConfigurationStart(xConfig);
                     try
                     {
+                        var xResult = true;
                         foreach (var xAssemblyFile in mKernelsToRun)
                         {
                             mBaseWorkingDirectory = Path.Combine(Path.GetDirectoryName(typeof(Engine).Assembly.Location), "WorkingDirectory");
@@ -71,8 +72,9 @@ namespace Cosmos.TestRunner.Core
                             }
                             Directory.CreateDirectory(mBaseWorkingDirectory);
 
-                            ExecuteKernel(xAssemblyFile, xConfig);
+                            xResult &= ExecuteKernel(xAssemblyFile, xConfig);
                         }
+                        return xResult;
                     }
                     catch (Exception e)
                     {
diff --git a/Users/Matthijs/DebugCompiler/MyEngine.cs b/Users/Matthijs/DebugCompiler/MyEngine.cs
index da4641649..69eeb808b 100644
--- a/Users/Matthijs/DebugCompiler/MyEngine.cs
+++ b/Users/Matthijs/DebugCompiler/MyEngine.cs
@@ -17,9 +17,8 @@ namespace DebugCompiler
             xEngine.KernelsToRun.Add(kernelToRun.Assembly.Location);
             xEngine.OutputHandler = new TestOutputHandler();
 
+            Assert.IsTrue(xEngine.Execute());
 
-            Assert.IsNotNull(kernelToRun);
-            Assert.Fail("Cannot run kernel '" + kernelToRun.FullName + "'!");
         }
 
         private class TestOutputHandler: OutputHandlerFullTextBase