diff --git a/README.md b/README.md
index 9c36e3a..945dd4e 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 # Ben.Demystifier
 
 [![NuGet version (Ben.Demystifier)](https://img.shields.io/nuget/v/Ben.Demystifier.svg?style=flat-square)](https://www.nuget.org/packages/Ben.Demystifier/)
+[![Build status](https://ci.appveyor.com/api/projects/status/rlhygchfph287fq0?svg=true)](https://ci.appveyor.com/project/benaadams/ben-demystifier)
 
 ## High performance understanding for stack traces 
 
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000..75a183e
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,34 @@
+image: Visual Studio 2017
+
+shallow_clone: true
+
+branches:
+  only:
+  - master
+
+skip_branch_with_pr: true
+
+skip_tags: true
+
+skip_commits:
+  files:
+  - BUILDING.md
+  - CONTRIBUTING.md
+  - ISSUE_TEMPLATE.md
+  - LICENCE
+  - README.md
+
+nuget:
+  disable_publish_on_pr: true
+
+build_script:
+- ps: .\build.ps1 -target appveyor -buildAssemblyVersion ($env:BuildVersion + $env:APPVEYOR_BUILD_NUMBER) -buildSemanticVersion ($env:BuildSemanticVersion + $env:APPVEYOR_BUILD_NUMBER)
+  
+test: off
+
+deploy: off
+
+artifacts:
+- path: artifacts/build
+- path: artifacts/packages
+- path: artifacts/test
\ No newline at end of file
diff --git a/build.ps1 b/build.ps1
new file mode 100644
index 0000000..d0bacc3
--- /dev/null
+++ b/build.ps1
@@ -0,0 +1,32 @@
+<#  
+.SYNOPSIS
+  This is a helper function that runs a scriptblock and checks the PS variable $lastexitcode
+  to see if an error occcured. If an error is detected then an exception is thrown.
+  This function allows you to run command-line programs without having to
+  explicitly check the $lastexitcode variable.
+.EXAMPLE
+  exec { svn info $repository_trunk } "Error executing SVN. Please verify SVN command-line client is installed"
+#>
+function Exec  
+{
+    [CmdletBinding()]
+    param(
+        [Parameter(Position=0,Mandatory=1)][scriptblock]$cmd,
+        [Parameter(Position=1,Mandatory=0)][string]$errorMessage = ($msgs.error_bad_command -f $cmd)
+    )
+    & $cmd
+    if ($lastexitcode -ne 0) {
+        throw ("Exec: " + $errorMessage)
+    }
+}
+
+if(Test-Path .\artifacts) { Remove-Item .\artifacts -Force -Recurse }
+
+exec { & dotnet restore }
+
+$revision = @{ $true = $env:APPVEYOR_BUILD_NUMBER; $false = 1 }[$env:APPVEYOR_BUILD_NUMBER -ne $NULL];
+$revision = "{0:D4}" -f [convert]::ToInt32($revision, 10)
+
+exec { & dotnet test .\test\Ben.Demystifier.Test -c Release }
+
+exec { & dotnet pack .\src\Ben.Demystifier -c Release -o .\artifacts --version-suffix=$revision }  
\ No newline at end of file
diff --git a/src/Ben.Demystifier/Ben.Demystifier.csproj b/src/Ben.Demystifier/Ben.Demystifier.csproj
index fdce526..e1da478 100644
--- a/src/Ben.Demystifier/Ben.Demystifier.csproj
+++ b/src/Ben.Demystifier/Ben.Demystifier.csproj
@@ -6,6 +6,8 @@
     <Description>High performance understanding for stack traces (Make error logs more productive)</Description>
     <Authors>ben_a_adams</Authors>
     <RepositoryUrl>https://github.com/benaadams/Ben.Demystifier</RepositoryUrl>
+    <PackageProjectUrl>https://github.com/benaadams/Ben.Demystifier</PackageProjectUrl>
+    <PackageLicenseUrl>https://github.com/benaadams/Ben.Demystifier/blob/master/LICENSE</PackageLicenseUrl>
     <RepositoryType>git</RepositoryType>
     <IncludeSymbols>true</IncludeSymbols>
     <IncludeSource>true</IncludeSource>
@@ -14,7 +16,7 @@
 
   <PropertyGroup>
     <TargetFrameworks>netstandard2.0;net46</TargetFrameworks>
-    <LangVersion>7.2</LangVersion>
+    <LangVersion>7.1</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/Ben.Demystifier/Enumerable/EnumerableIList.cs b/src/Ben.Demystifier/Enumerable/EnumerableIList.cs
index 6dc5bf7..58ced0b 100644
--- a/src/Ben.Demystifier/Enumerable/EnumerableIList.cs
+++ b/src/Ben.Demystifier/Enumerable/EnumerableIList.cs
@@ -8,7 +8,7 @@ namespace System.Collections.Generic.Enumerable
         public static EnumerableIList<T> Create<T>(IList<T> list) => new EnumerableIList<T>(list);
     }
 
-    public readonly struct EnumerableIList<T> : IEnumerableIList<T>, IList<T>
+    public struct EnumerableIList<T> : IEnumerableIList<T>, IList<T>
     {
         private readonly IList<T> _list;
 
diff --git a/test/Ben.Demystifier.Test/DynamicCompilation.cs b/test/Ben.Demystifier.Test/DynamicCompilation.cs
index 81fa9a7..a6767f1 100644
--- a/test/Ben.Demystifier.Test/DynamicCompilation.cs
+++ b/test/Ben.Demystifier.Test/DynamicCompilation.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Diagnostics;
+using System.Linq;
 using System.Linq.Expressions;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
@@ -37,15 +38,19 @@ namespace Demystify
             // Assert
             var stackTrace = demystifiedException.ToString();
             stackTrace = ReplaceLineEndings.Replace(stackTrace, "");
-            var trace = stackTrace.Split(Environment.NewLine);
+            var trace = stackTrace.Split(Environment.NewLine)
+                // Remove items that vary between test runners
+                .Where(s =>
+                    s != "   at void System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, object state)" &&
+                    s != "   at Task Demystify.DynamicCompilation.DoesNotPreventStackTrace()+()=>{}"
+                )
+                .ToArray();
 
             Assert.Equal(
                 new[] {
                     "System.ArgumentException: Message",
                     "   at void lambda_method(Closure)",
-                    "   at Task Demystify.DynamicCompilation.DoesNotPreventThrowStackTrace()+()=>{}",
-                    "   at void System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, object state)",
-                    "   at async Task Demystify.DynamicCompilation.DoesNotPreventThrowStackTrace()"}, 
+                    "   at async Task Demystify.DynamicCompilation.DoesNotPreventStackTrace()"}, 
                 trace);
         }