diff --git a/aspclassiccompiler/AspWebApp/AspWebApp.csproj b/aspclassiccompiler/AspWebApp/AspWebApp.csproj
index 8c9e002..1254e82 100644
--- a/aspclassiccompiler/AspWebApp/AspWebApp.csproj
+++ b/aspclassiccompiler/AspWebApp/AspWebApp.csproj
@@ -29,6 +29,22 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="Dlrsoft.Asp, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/aspclassiccompiler/NerdDinnerAsp/NerdDinnerAsp.csproj b/aspclassiccompiler/NerdDinnerAsp/NerdDinnerAsp.csproj
index b0c38f1..a1e029c 100644
--- a/aspclassiccompiler/NerdDinnerAsp/NerdDinnerAsp.csproj
+++ b/aspclassiccompiler/NerdDinnerAsp/NerdDinnerAsp.csproj
@@ -30,6 +30,22 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="Dlrsoft.Asp, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/aspclassiccompiler/Parser/Parser.vbproj b/aspclassiccompiler/Parser/Parser.vbproj
index 65c5c4e..9dc3e09 100644
--- a/aspclassiccompiler/Parser/Parser.vbproj
+++ b/aspclassiccompiler/Parser/Parser.vbproj
@@ -84,6 +84,27 @@
     <WarningLevel>1</WarningLevel>
     <NoWarn>42016,42017,42018,42019,42032</NoWarn>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DefineDebug>true</DefineDebug>
+    <DefineTrace>true</DefineTrace>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <BaseAddress>285212672</BaseAddress>
+    <DocumentationFile>Dlrsoft.VBParser.xml</DocumentationFile>
+    <WarningLevel>1</WarningLevel>
+    <NoWarn>42016,42017,42018,42019,42032</NoWarn>
+    <PlatformTarget>x86</PlatformTarget>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+    <DefineTrace>true</DefineTrace>
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <BaseAddress>285212672</BaseAddress>
+    <DocumentationFile>Dlrsoft.VBParser.xml</DocumentationFile>
+    <Optimize>true</Optimize>
+    <WarningLevel>1</WarningLevel>
+    <NoWarn>42016,42017,42018,42019,42032</NoWarn>
+    <PlatformTarget>x86</PlatformTarget>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="System">
       <Name>System</Name>
diff --git a/aspclassiccompiler/VBScript/Runtime/IAssert.cs b/aspclassiccompiler/VBScript/Runtime/IAssert.cs
index 8976849..ad7063a 100644
--- a/aspclassiccompiler/VBScript/Runtime/IAssert.cs
+++ b/aspclassiccompiler/VBScript/Runtime/IAssert.cs
@@ -1,20 +1,16 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
+using System.Runtime.InteropServices;
 
 namespace Dlrsoft.VBScript.Runtime
 {
     public interface IAssert
     {
-        void AreEqual(object expected, object actual);
         void AreEqual(object expected, object actual, string message);
-        void AreNotEqual(object notExpected, object actual);
         void AreNotEqual(object notExpected, object actual, string message);
-        void Fail();
         void Fail(string message);
-        void IsFalse(bool condition);
         void IsFalse(bool condition, string message);
-        void IsTrue(bool condition);
         void IsTrue(bool condition, string message);
     }
 }
diff --git a/aspclassiccompiler/VBScript/VBScript.csproj b/aspclassiccompiler/VBScript/VBScript.csproj
index f388d58..0f4673b 100644
--- a/aspclassiccompiler/VBScript/VBScript.csproj
+++ b/aspclassiccompiler/VBScript/VBScript.csproj
@@ -32,6 +32,22 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <DefineConstants>TRACE;DEBUG;USE35</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <DefineConstants>TRACE;USE35</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.Dynamic, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/aspclassiccompiler/VBScriptTest/DirectoryWalker.cs b/aspclassiccompiler/VBScriptTest/DirectoryWalker.cs
new file mode 100644
index 0000000..1540e0e
--- /dev/null
+++ b/aspclassiccompiler/VBScriptTest/DirectoryWalker.cs
@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+using System.Reflection;
+
+namespace Dlrsoft.VBScriptTest
+{
+    public class DirectoryWalker
+    {
+        static public string AssemblyDirectory
+        {
+            get
+            {
+                string codeBase = Assembly.GetExecutingAssembly().CodeBase;
+                UriBuilder uri = new UriBuilder(codeBase);
+                string path = Uri.UnescapeDataString(uri.Path);
+                return Path.GetDirectoryName(path);
+            }
+        }
+
+        static public void Walk(string path, Action<string> fileHandler)
+        {
+            FileAttributes fa = File.GetAttributes(path);
+            if ((fa & FileAttributes.Directory) == FileAttributes.Directory)
+            {
+                Walk(new DirectoryInfo(path), fileHandler);
+            }
+            else
+            {
+                Walk(new FileInfo(path), fileHandler);
+            }
+        }
+
+        static private void Walk(DirectoryInfo di, Action<string> fileHandler)
+        {
+            foreach (FileInfo fi in di.GetFiles())
+            {
+                Walk(fi, fileHandler);
+            }
+
+            foreach (DirectoryInfo cdi in di.GetDirectories())
+            {
+                Walk(cdi, fileHandler);
+            }
+        }
+
+        static private void Walk(FileInfo fi, Action<string> fileHandler)
+        {
+            fileHandler(fi.FullName);
+        }
+    }
+}
diff --git a/aspclassiccompiler/VBScriptTest/NunitAssert.cs b/aspclassiccompiler/VBScriptTest/NunitAssert.cs
index f0b5187..f2cbb64 100644
--- a/aspclassiccompiler/VBScriptTest/NunitAssert.cs
+++ b/aspclassiccompiler/VBScriptTest/NunitAssert.cs
@@ -3,58 +3,35 @@ using System.Collections.Generic;
 using System.Text;
 using Dlrsoft.VBScript.Runtime;
 using NUnit.Framework;
+using System.Runtime.InteropServices;
 
 namespace Dlrsoft.VBScriptTest
 {
+    [ComVisible(true)]
     public class NunitAssert : IAssert
     {
         #region IAssert Members
 
-        public void AreEqual(object expected, object actual)
-        {
-            Assert.AreEqual(expected, actual);
-        }
-
         public void AreEqual(object expected, object actual, string message)
         {
             Assert.AreEqual(expected, actual, message);
         }
 
-        public void AreNotEqual(object notExpected, object actual)
-        {
-            Assert.AreNotEqual(notExpected, actual);
-        }
-
         public void AreNotEqual(object notExpected, object actual, string message)
         {
             Assert.AreNotEqual(notExpected, actual, message);
         }
 
-        public void Fail()
-        {
-            Assert.Fail();
-        }
-
         public void Fail(string message)
         {
             Assert.Fail(message);
         }
 
-        public void IsFalse(bool condition)
-        {
-            Assert.IsFalse(condition);
-        }
-
         public void IsFalse(bool condition, string message)
         {
             Assert.IsFalse(condition, message);
         }
 
-        public void IsTrue(bool condition)
-        {
-            Assert.IsTrue(condition);
-        }
-
         public void IsTrue(bool condition, string message)
         {
             Assert.IsTrue(condition, message);
diff --git a/aspclassiccompiler/VBScriptTest/UnmanagedVBScriptTest.cs b/aspclassiccompiler/VBScriptTest/UnmanagedVBScriptTest.cs
new file mode 100644
index 0000000..d01133e
--- /dev/null
+++ b/aspclassiccompiler/VBScriptTest/UnmanagedVBScriptTest.cs
@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using NUnit.Framework;
+using System.IO;
+
+namespace Dlrsoft.VBScriptTest
+{
+    [TestFixture]
+    public class UnmanagedVBScriptTest
+    {
+        [Test]
+        public void RunTest()
+        {
+            DirectoryWalker.Walk(
+                Path.Combine(DirectoryWalker.AssemblyDirectory, "../../VBScripts"),
+                f =>
+                {
+                    if (f.EndsWith(".vbs", StringComparison.InvariantCultureIgnoreCase))
+                    {
+                        try
+                        {
+                            UnmangedVBScriptHost.Run(f);
+                        }
+                        catch (Exception ex)
+                        {
+                            Assert.Fail(f + ":" + ex.Message);
+                        }
+                    }
+                }
+            );
+        }
+    }
+}
diff --git a/aspclassiccompiler/VBScriptTest/UnmangedVBScriptHost.cs b/aspclassiccompiler/VBScriptTest/UnmangedVBScriptHost.cs
new file mode 100644
index 0000000..473501e
--- /dev/null
+++ b/aspclassiccompiler/VBScriptTest/UnmangedVBScriptHost.cs
@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using MSScriptControl;
+using System.IO;
+using Dlrsoft.VBScript.Runtime;
+
+namespace Dlrsoft.VBScriptTest
+{
+    public class UnmangedVBScriptHost
+    {
+        public static void Run(string filePath)
+        {
+            ScriptControlClass scripter = new ScriptControlClass();
+
+            try {
+                scripter.Language = "VBScript";
+                scripter.AllowUI = false;
+                scripter.UseSafeSubset = true;
+                IAssert assert = new NunitAssert();
+                scripter.AddObject("Assert", assert, false);
+
+                string code = File.ReadAllText(filePath);
+                scripter.AddCode(code);
+            }
+            catch(Exception ex)
+            {
+                throw;
+            } 
+            finally
+            {
+                System.Runtime.InteropServices.Marshal.ReleaseComObject(scripter);
+                scripter = null;
+            }
+
+        }
+    }
+}
diff --git a/aspclassiccompiler/VBScriptTest/VBScriptTest.csproj b/aspclassiccompiler/VBScriptTest/VBScriptTest.csproj
index c8b2a72..fe1be3d 100644
--- a/aspclassiccompiler/VBScriptTest/VBScriptTest.csproj
+++ b/aspclassiccompiler/VBScriptTest/VBScriptTest.csproj
@@ -55,10 +55,13 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="DirectoryWalker.cs" />
     <Compile Include="NunitAssert.cs" />
+    <Compile Include="UnmanagedVBScriptTest.cs" />
+    <Compile Include="UnmangedVBScriptHost.cs" />
     <Compile Include="VBScriptTestHelper.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="TestRunner.cs" />
+    <Compile Include="VBscriptDotNetTest.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\VBScript\VBScript.csproj">
@@ -69,6 +72,16 @@
   <ItemGroup>
     <Content Include="VBScripts\DataTypes.vbs" />
   </ItemGroup>
+  <ItemGroup>
+    <COMReference Include="MSScriptControl">
+      <Guid>{0E59F1D2-1FBE-11D0-8FF2-00A0D10038BC}</Guid>
+      <VersionMajor>1</VersionMajor>
+      <VersionMinor>0</VersionMinor>
+      <Lcid>0</Lcid>
+      <WrapperTool>tlbimp</WrapperTool>
+      <Isolated>False</Isolated>
+    </COMReference>
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
diff --git a/aspclassiccompiler/VBScriptTest/VBScriptTestHelper.cs b/aspclassiccompiler/VBScriptTest/VBScriptTestHelper.cs
index a2cfe4a..e06c5cf 100644
--- a/aspclassiccompiler/VBScriptTest/VBScriptTestHelper.cs
+++ b/aspclassiccompiler/VBScriptTest/VBScriptTestHelper.cs
@@ -2,8 +2,6 @@
 using System.Collections.Generic;
 using System.Text;
 using System.Dynamic;
-using System.Reflection;
-using System.IO;
 #if USE35
 using Microsoft.Scripting.Hosting;
 using Microsoft.Scripting.Ast;
@@ -39,48 +37,5 @@ namespace Dlrsoft.VBScriptTest
             feo.SetVariable("Assert", new NunitAssert());
             compiledCode.Execute(feo);
         }
-
-        static public string AssemblyDirectory 
-        { 
-            get 
-            { 
-                string codeBase = Assembly.GetExecutingAssembly().CodeBase; 
-                UriBuilder uri = new UriBuilder(codeBase); 
-                string path = Uri.UnescapeDataString(uri.Path); 
-                return Path.GetDirectoryName(path); 
-            } 
-        }
-
-        static public void Walk(string path, Action<string> fileHandler)
-        {
-            FileAttributes fa = File.GetAttributes(path);
-            if ((fa & FileAttributes.Directory) == FileAttributes.Directory)
-            {
-                Walk(new DirectoryInfo(path), fileHandler);
-            }
-            else
-            {
-                Walk(new FileInfo(path), fileHandler);
-            }
-        }
-
-        static private void Walk(DirectoryInfo di, Action<string> fileHandler)
-        {
-            foreach (FileInfo fi in di.GetFiles())
-            {
-                Walk(fi, fileHandler);
-            }
-
-            foreach (DirectoryInfo cdi in di.GetDirectories())
-            {
-                Walk(cdi, fileHandler);
-            }
-        }
-
-        static private void Walk(FileInfo fi, Action<string> fileHandler)
-        {
-            fileHandler(fi.FullName);
-        }
-
     }
 }
diff --git a/aspclassiccompiler/VBScriptTest/VBScripts/DataTypes.vbs b/aspclassiccompiler/VBScriptTest/VBScripts/DataTypes.vbs
index 10d757c..846cec6 100644
--- a/aspclassiccompiler/VBScriptTest/VBScripts/DataTypes.vbs
+++ b/aspclassiccompiler/VBScriptTest/VBScripts/DataTypes.vbs
@@ -1,2 +1,2 @@
 dim a
-Assert.IsTrue(IsEmpty(a), "Unassigned variable must be empty")
+Assert.IsTrue IsEmpty(a), "Unassigned variable must be empty"
diff --git a/aspclassiccompiler/VBScriptTest/TestRunner.cs b/aspclassiccompiler/VBScriptTest/VBscriptDotNetTest.cs
similarity index 77%
rename from aspclassiccompiler/VBScriptTest/TestRunner.cs
rename to aspclassiccompiler/VBScriptTest/VBscriptDotNetTest.cs
index 88abd6a..82d3c7d 100644
--- a/aspclassiccompiler/VBScriptTest/TestRunner.cs
+++ b/aspclassiccompiler/VBScriptTest/VBscriptDotNetTest.cs
@@ -10,9 +10,9 @@ namespace Dlrsoft.VBScriptTest
     /// Summary description for UnitTest1
     /// </summary>
     [TestFixture]
-    public class TestRunner
+    public class VBscriptDotNetTest
     {
-        public TestRunner()
+        public VBscriptDotNetTest()
         {
             //
             // TODO: Add constructor logic here
@@ -62,13 +62,20 @@ namespace Dlrsoft.VBScriptTest
         [Test]
         public void RunTest()
         {
-            VBScriptTestHelper.Walk(
-                Path.Combine(VBScriptTestHelper.AssemblyDirectory, "../../VBScripts"),
+            DirectoryWalker.Walk(
+                Path.Combine(DirectoryWalker.AssemblyDirectory, "../../VBScripts"),
                 f =>
                 {
                     if (f.EndsWith(".vbs", StringComparison.InvariantCultureIgnoreCase))
                     {
-                        VBScriptTestHelper.Run(f);
+                        try
+                        {
+                            VBScriptTestHelper.Run(f);
+                        }
+                        catch (Exception ex)
+                        {
+                            Assert.Fail(f + ":" + ex.Message);
+                        }
                     }
                 }
             );
diff --git a/aspclassiccompiler/asp/Asp.csproj b/aspclassiccompiler/asp/Asp.csproj
index bfbaa61..7e5c82c 100644
--- a/aspclassiccompiler/asp/Asp.csproj
+++ b/aspclassiccompiler/asp/Asp.csproj
@@ -30,6 +30,22 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="Microsoft.Dynamic, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>