diff --git a/README.md b/README.md
index 70bc9e4..8c2ada8 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,9 @@ Having a local cache in front of a centralized cache is nothing new, it's a feat
 
 DoubleCache provides this functionality using System.Runtime.Cache.MemoryCache. By creating your own implementation of the ICacheAside interface, it is easy to replace the local or remote cache with your own. 
 
+##Build status
+[![Build status](https://ci.appveyor.com/api/projects/status/8qnxdit4rugd7hij?svg=true)](https://ci.appveyor.com/project/BjrnEinarBjarnes/doublecache)
+
 ##Usage
 Add a reference to DoubleCache using nuget `Install-Package DoubleCache` and initialize the DoubleCache with a remote and a local cache. 
 ```
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000..a11e2a0
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,5 @@
+assembly_info:
+  patch: false
+build_script:
+  build.cmd
+test: off
diff --git a/source/DoubleCache/DoubleCache.csproj b/source/DoubleCache/DoubleCache.csproj
index 7288e22..26ff98d 100644
--- a/source/DoubleCache/DoubleCache.csproj
+++ b/source/DoubleCache/DoubleCache.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>DoubleCache</RootNamespace>
     <AssemblyName>DoubleCache</AssemblyName>
-    <TargetFrameworkVersion>v4.6</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
@@ -30,14 +30,6 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="MsgPack, Version=0.6.0.0, Culture=neutral, PublicKeyToken=a2625990d5dc0167, processorArchitecture=MSIL">
-      <HintPath>..\packages\MsgPack.Cli.0.6.5\lib\net45\MsgPack.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="StackExchange.Redis, Version=1.0.316.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\packages\StackExchange.Redis.1.0.488\lib\net45\StackExchange.Redis.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Runtime.Caching" />
@@ -47,6 +39,12 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Xml" />
+    <Reference Include="MsgPack, Version=0.6.0.0, Culture=neutral, PublicKeyToken=a2625990d5dc0167">
+      <HintPath>..\packages\MsgPack.Cli.0.6.5\lib\net45\MsgPack.dll</HintPath>
+    </Reference>
+    <Reference Include="StackExchange.Redis, Version=1.0.316.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\packages\StackExchange.Redis.1.0.488\lib\net45\StackExchange.Redis.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="CacheUpdateNotification.cs" />
diff --git a/source/DoubleCacheTests/DoubleCacheTests.csproj b/source/DoubleCacheTests/DoubleCacheTests.csproj
index 6cbdb11..dc087df 100644
--- a/source/DoubleCacheTests/DoubleCacheTests.csproj
+++ b/source/DoubleCacheTests/DoubleCacheTests.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="..\packages\xunit.runner.visualstudio.2.1.0\build\net20\xunit.runner.visualstudio.props" Condition="Exists('..\packages\xunit.runner.visualstudio.2.1.0\build\net20\xunit.runner.visualstudio.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>DoubleCacheTests</RootNamespace>
     <AssemblyName>DoubleCacheTests</AssemblyName>
-    <TargetFrameworkVersion>v4.6</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <NuGetPackageImportStamp>
     </NuGetPackageImportStamp>
@@ -33,22 +33,6 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Castle.Core, Version=2.5.1.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc, processorArchitecture=MSIL">
-      <HintPath>..\packages\Castle.Core.2.5.2\lib\NET35\Castle.Core.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
-    <Reference Include="FakeItEasy, Version=1.25.3.0, Culture=neutral, PublicKeyToken=eff28e2146d5fd2c, processorArchitecture=MSIL">
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-      <Private>True</Private>
-    </Reference>
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-      <Private>True</Private>
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-      <HintPath>..\packages\StackExchange.Redis.1.0.488\lib\net45\StackExchange.Redis.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Runtime.Caching" />
@@ -58,17 +42,26 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Xml" />
-    <Reference Include="xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c, processorArchitecture=MSIL">
+    <Reference Include="Castle.Core, Version=2.5.1.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc">
+      <HintPath>..\packages\Castle.Core.2.5.2\lib\NET35\Castle.Core.dll</HintPath>
+    </Reference>
+    <Reference Include="FakeItEasy, Version=1.25.3.0, Culture=neutral, PublicKeyToken=eff28e2146d5fd2c">
+      <HintPath>..\packages\FakeItEasy.1.25.3\lib\net40\FakeItEasy.dll</HintPath>
+    </Reference>
+    <Reference Include="Shouldly, Version=2.6.0.0, Culture=neutral, PublicKeyToken=6042cbcb05cbc941">
+      <HintPath>..\packages\Shouldly.2.6.0\lib\net40\Shouldly.dll</HintPath>
+    </Reference>
+    <Reference Include="StackExchange.Redis, Version=1.0.316.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\packages\StackExchange.Redis.1.0.488\lib\net45\StackExchange.Redis.dll</HintPath>
+    </Reference>
+    <Reference Include="xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c">
       <HintPath>..\packages\xunit.abstractions.2.0.0\lib\net35\xunit.abstractions.dll</HintPath>
-      <Private>True</Private>
     </Reference>
-    <Reference Include="xunit.core, Version=2.1.0.3179, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c, processorArchitecture=MSIL">
+    <Reference Include="xunit.core, Version=2.1.0.3179, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c">
       <HintPath>..\packages\xunit.extensibility.core.2.1.0\lib\dotnet\xunit.core.dll</HintPath>
-      <Private>True</Private>
     </Reference>
-    <Reference Include="xunit.execution.desktop, Version=2.1.0.3179, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c, processorArchitecture=MSIL">
+    <Reference Include="xunit.execution.desktop, Version=2.1.0.3179, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c">
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-      <Private>True</Private>
     </Reference>
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   <ItemGroup>
@@ -94,7 +87,7 @@
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\DoubleCache\DoubleCache.csproj">
-      <Project>{6c5d1a93-cca6-4cf2-9c76-103021f0a999}</Project>
+      <Project>{6C5D1A93-CCA6-4CF2-9C76-103021F0A999}</Project>
       <Name>DoubleCache</Name>
     </ProjectReference>
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diff --git a/source/Sample/RandomUser/RandomUser.csproj b/source/Sample/RandomUser/RandomUser.csproj
index 6b78f61..66e0de2 100644
--- a/source/Sample/RandomUser/RandomUser.csproj
+++ b/source/Sample/RandomUser/RandomUser.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>RandomUser</RootNamespace>
     <AssemblyName>RandomUser</AssemblyName>
-    <TargetFrameworkVersion>v4.6</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
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   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
@@ -30,14 +30,6 @@
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-      <Private>True</Private>
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-      <HintPath>..\..\packages\StackExchange.Redis.1.0.488\lib\net45\StackExchange.Redis.dll</HintPath>
-      <Private>True</Private>
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     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />
@@ -46,6 +38,12 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Xml" />
+    <Reference Include="Newtonsoft.Json, Version=8.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed">
+      <HintPath>..\..\packages\Newtonsoft.Json.8.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
+    </Reference>
+    <Reference Include="StackExchange.Redis, Version=1.0.316.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\..\packages\StackExchange.Redis.1.0.488\lib\net45\StackExchange.Redis.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="RandomUserRepository.cs" />
diff --git a/source/Sample/SampleApiCacheUpdateConsole/SampleApiCacheUpdateConsole.csproj b/source/Sample/SampleApiCacheUpdateConsole/SampleApiCacheUpdateConsole.csproj
index 021f7da..d575ab9 100644
--- a/source/Sample/SampleApiCacheUpdateConsole/SampleApiCacheUpdateConsole.csproj
+++ b/source/Sample/SampleApiCacheUpdateConsole/SampleApiCacheUpdateConsole.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>CachePublisher</RootNamespace>
     <AssemblyName>CachePublisher</AssemblyName>
-    <TargetFrameworkVersion>v4.6</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
   </PropertyGroup>
@@ -33,10 +33,6 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="StackExchange.Redis, Version=1.0.316.0, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\StackExchange.Redis.1.0.488\lib\net45\StackExchange.Redis.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
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     <Reference Include="System.Core" />
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@@ -45,6 +41,9 @@
     <Reference Include="System.Data" />
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Xml" />
+    <Reference Include="StackExchange.Redis, Version=1.0.316.0, Culture=neutral, PublicKeyToken=null">
+      <HintPath>..\..\packages\StackExchange.Redis.1.0.488\lib\net45\StackExchange.Redis.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Program.cs" />
@@ -56,11 +55,11 @@
   </ItemGroup>
   <ItemGroup>
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-      <Project>{6c5d1a93-cca6-4cf2-9c76-103021f0a999}</Project>
+      <Project>{6C5D1A93-CCA6-4CF2-9C76-103021F0A999}</Project>
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     </ProjectReference>
     <ProjectReference Include="..\RandomUser\RandomUser.csproj">
-      <Project>{5cd548fd-5f02-4a15-9839-e3457e1cfd58}</Project>
+      <Project>{5CD548FD-5F02-4A15-9839-E3457E1CFD58}</Project>
       <Name>RandomUser</Name>
     </ProjectReference>
   </ItemGroup>
diff --git a/source/Sample/SampleApiHostConsole/SampleApiHostConsole.csproj b/source/Sample/SampleApiHostConsole/SampleApiHostConsole.csproj
index 1d2ed7a..fce0e4a 100644
--- a/source/Sample/SampleApiHostConsole/SampleApiHostConsole.csproj
+++ b/source/Sample/SampleApiHostConsole/SampleApiHostConsole.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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@@ -9,7 +9,7 @@
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     <RootNamespace>CachedAPI</RootNamespace>
     <AssemblyName>CachedAPI</AssemblyName>
-    <TargetFrameworkVersion>v4.6</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
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@@ -33,54 +33,44 @@
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   </PropertyGroup>
   <ItemGroup>
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+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
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-    <Reference Include="Microsoft.Owin.Host.HttpListener, Version=2.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
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-    <Reference Include="System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+    <Reference Include="System.Net.Http.Formatting, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
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     </Reference>
-    <Reference Include="System.Web.Http, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+    <Reference Include="System.Web.Http, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35">
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     </Reference>
-    <Reference Include="System.Web.Http.Owin, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
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-    <Reference Include="System.Web.Http.WebHost, Version=5.2.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
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@@ -92,7 +82,7 @@
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diff --git a/source/Sample/SampleApiOwin/SampleApiOwin.csproj b/source/Sample/SampleApiOwin/SampleApiOwin.csproj
index 5f5030b..13990f9 100644
--- a/source/Sample/SampleApiOwin/SampleApiOwin.csproj
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@@ -1,5 +1,5 @@
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-<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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@@ -9,7 +9,7 @@
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     <AssemblyName>CacheSample</AssemblyName>
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+    <Reference Include="System.Runtime.Serialization" />
+    <Reference Include="System.Xml.Linq" />
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+    <Reference Include="System.Data" />
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