diff --git a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/CsQuery.PerformanceTests.csproj b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/CsQuery.PerformanceTests.csproj
index 198f3bb0..06f9baa1 100644
--- a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/CsQuery.PerformanceTests.csproj
+++ b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/CsQuery.PerformanceTests.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>CsQuery.PerformanceTests</RootNamespace>
     <AssemblyName>CsQuery.PerformanceTests</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile />
     <IsWebBootstrapper>false</IsWebBootstrapper>
@@ -39,6 +39,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -47,11 +48,15 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup>
     <StartupObject />
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="AngleSharp">
+      <HintPath>..\packages\AngleSharp.0.6.1\lib\portable-win+net45+wp80\AngleSharp.dll</HintPath>
+    </Reference>
     <Reference Include="Fizzler">
       <HintPath>..\packages\Fizzler.0.9.3\lib\net35\Fizzler.dll</HintPath>
     </Reference>
@@ -85,12 +90,8 @@
   <ItemGroup>
     <None Include="app.config" />
     <None Include="packages.config" />
-    <None Include="Performance\Output\perftest_2012_7_27_55047.csv" />
-    <None Include="Performance\Output\perftest_latest.csv" />
   </ItemGroup>
   <ItemGroup>
-    <Content Include="Performance\Output\perftest_2012_7_27_55047.txt" />
-    <Content Include="Performance\Output\perftest_latest.txt" />
     <Content Include="Resources\HTML Standard.htm">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
@@ -129,6 +130,9 @@
       <Name>CsQuery</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Performance\Output\" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="$(SolutionDir)\.nuget\nuget.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Performance/PerfCompare.cs b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Performance/PerfCompare.cs
index 86b032dc..11ad5096 100644
--- a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Performance/PerfCompare.cs
+++ b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Performance/PerfCompare.cs
@@ -13,6 +13,7 @@
 using CsQuery.Engine;
 using CsQuery.HtmlParser;
 using CsQuery.ExtensionMethods.Internal;
+using AngleSharp.DOM;
 
 namespace CsQuery.PerformanceTests
 {
@@ -23,6 +24,7 @@ public class PerfCompare
         public CQ CsqueryDocument_Simple { get; set; }
         public CQ CsqueryDocument_Ranged { get; set; }
         public CQ CsqueryDocument_NoIndex { get; set; }
+        public IDocument AngleSharpDocument { get; set; }
         public HtmlDocument HapDocument { get; set; }
         public TimeSpan MaxTestTime { get; set; }
         
@@ -60,6 +62,8 @@ public void LoadBoth(string doc)
 
             HapDocument = new HtmlDocument();
             HapDocument.LoadHtml(html);
+
+            AngleSharpDocument = AngleSharp.DocumentBuilder.Html(html);
         }
 
         public PerfComparison Compare(string selector, string xpath)
@@ -73,6 +77,13 @@ public PerfComparison Compare(string selector, string xpath)
             }
             catch { }
 
+            int angleSharpCount = 0;
+            try
+            {
+                angleSharpCount = AngleSharpDocument.QuerySelectorAll(selector).Count();
+            }
+            catch { }
+
             string description = String.Format("Selector returning {0} elements.", cqCount);
 
             bool same = true;
@@ -81,6 +92,13 @@ public PerfComparison Compare(string selector, string xpath)
                 description += String.Format(" NOTE: HAP returned {0} elements", hapCount);
                 same = false;
             }
+            if (angleSharpCount != cqCount)
+            {
+                description += String.Format(" NOTE: AngleSharp returned {0} elements", angleSharpCount);
+                same = false;
+            }
+
+
 
             // use Count() for both to ensure that all results are retrieved (e.g. if the engine is lazy)
 
@@ -111,6 +129,10 @@ public PerfComparison Compare(string selector, string xpath)
                 var hapLength = HapDocument.DocumentNode.SelectNodes(xpath).OrDefault().ToList();
             });
 
+            Action angle = new Action(() =>
+            {
+                var angleSharpLength = AngleSharpDocument.QuerySelectorAll(selector).ToList();
+            });
 
             IDictionary<string, Action> actions = new Dictionary<string, Action>();
             if (Program.IncludeTests.HasFlag(TestMethods.CsQuery_NoIndex))
@@ -133,6 +155,10 @@ public PerfComparison Compare(string selector, string xpath)
             {
                 actions.Add("Fizzler", fiz);
             }
+            if (Program.IncludeTests.HasFlag(TestMethods.AngleSharp))
+            {
+                actions.Add("AngleSharp", angle);
+            }
             var results = Compare(actions, testName, description);
             results.SameResults = same;
             results.Context = Context;
diff --git a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Performance/Tests/PerformanceShared.cs b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Performance/Tests/PerformanceShared.cs
index 8ea0ec33..b371378e 100644
--- a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Performance/Tests/PerformanceShared.cs
+++ b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Performance/Tests/PerformanceShared.cs
@@ -14,6 +14,7 @@
 using CsQuery.Implementation;
 using CsQuery.HtmlParser;
 using CsQuery.ExtensionMethods.Internal;
+using AngleSharp.DOM;
 
 namespace CsQuery.PerformanceTests.Tests
 {
@@ -90,6 +91,12 @@ public void LoadingDom()
                 hapDoc.LoadHtml(html);
             });
 
+            Action angleSharp = new Action(() =>
+            {
+                var angleSharpDocument = AngleSharp.DocumentBuilder.Html(html);
+            });
+
+
             IDictionary<string,Action> tests = new Dictionary<string,Action>();
 
             if (Program.IncludeTests.HasFlag(TestMethods.CsQuery_NoIndex)) {
@@ -106,6 +113,12 @@ public void LoadingDom()
             {
                 tests.Add("HAP", hap);
             }
+
+            if (Program.IncludeTests.HasFlag(TestMethods.AngleSharp))
+            {
+                tests.Add("AngleSharp", angleSharp);
+            }
+
             Compare(tests, "Create DOM from html");
 
         }
diff --git a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Program.cs b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Program.cs
index 79ef28d3..bd0eeeac 100644
--- a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Program.cs
+++ b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/Program.cs
@@ -20,7 +20,8 @@ public enum TestMethods
         CsQuery_SimpleIndex = 2,
         CsQuery_RangedIndex = 4,
         HAP = 8,
-        Fizzler=16
+        Fizzler=16,
+        AngleSharp=32
     }
 
     public class Program
@@ -33,7 +34,8 @@ public static TestMethods IncludeTests
                     TestMethods.CsQuery_NoIndex |
                     TestMethods.CsQuery_SimpleIndex |
                     TestMethods.Fizzler |
-                    TestMethods.HAP;
+                    TestMethods.HAP |
+                    TestMethods.AngleSharp;
             }
         }
         public static string OutputDirectory;
diff --git a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/app.config b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/app.config
index 9f7254c4..31caa29c 100644
--- a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/app.config
+++ b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/app.config
@@ -1,11 +1,11 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0"?>
 <configuration>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
-        <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-1.3.0.0" newVersion="1.3.0.0" />
+        <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-1.3.0.0" newVersion="1.3.0.0"/>
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
-</configuration>
\ No newline at end of file
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup></configuration>
diff --git a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/packages.config b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/packages.config
index e805c3cd..4728510e 100644
--- a/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/packages.config
+++ b/source/CsQuery.PerformanceTests/CsQuery.PerformanceTests/packages.config
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="AngleSharp" version="0.6.1" targetFramework="net45" />
   <package id="Fizzler" version="0.9.3" targetFramework="net40" />
   <package id="HtmlAgilityPack" version="1.4.6" targetFramework="net40" />
 </packages>
\ No newline at end of file
diff --git a/source/CsQuery.Tests/Csquery.Tests.csproj b/source/CsQuery.Tests/Csquery.Tests.csproj
index 4ac4b573..dfc72b58 100644
--- a/source/CsQuery.Tests/Csquery.Tests.csproj
+++ b/source/CsQuery.Tests/Csquery.Tests.csproj
@@ -61,21 +61,6 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Fizzler, Version=0.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Fizzler.0.9.3\lib\net35\Fizzler.dll</HintPath>
-    </Reference>
-    <Reference Include="Fizzler.Sandbox">
-      <HintPath>..\packages\Fizzler.0.9.3\lib\net35\Fizzler.Sandbox.dll</HintPath>
-    </Reference>
-    <Reference Include="Fizzler.Systems.HtmlAgilityPack, Version=0.1.0.0, Culture=neutral, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Fizzler.0.9.3\lib\net35\Fizzler.Systems.HtmlAgilityPack.dll</HintPath>
-    </Reference>
-    <Reference Include="HtmlAgilityPack, Version=1.4.6.0, Culture=neutral, PublicKeyToken=bd319b19eaf3b43a, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\HtmlAgilityPack.1.4.6\lib\Net40\HtmlAgilityPack.dll</HintPath>
-    </Reference>
     <Reference Include="Microsoft.VisualStudio.QualityTools.UnitTestFramework, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
     <Reference Include="nunit.framework, Version=2.6.1.12217, Culture=neutral, PublicKeyToken=96d09a1eb7f44a77, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
diff --git a/source/CsQuery.Tests/Miscellaneous/Miscellaneous.cs b/source/CsQuery.Tests/Miscellaneous/Miscellaneous.cs
index aaaa2c0e..e428d949 100644
--- a/source/CsQuery.Tests/Miscellaneous/Miscellaneous.cs
+++ b/source/CsQuery.Tests/Miscellaneous/Miscellaneous.cs
@@ -14,7 +14,6 @@
 using TestContext = Microsoft.VisualStudio.TestTools.UnitTesting.TestContext;
 using CsQuery;
 using CsQuery.Utility;
-using HtmlAgilityPack;
 
 namespace CsQuery.Tests.Miscellaneous
 {