diff --git a/CSharp/Applications/UniversalEditor.TestProject/Program.cs b/CSharp/Applications/UniversalEditor.TestProject/Program.cs
new file mode 100644
index 00000000..8cd00c65
--- /dev/null
+++ b/CSharp/Applications/UniversalEditor.TestProject/Program.cs
@@ -0,0 +1,20 @@
+using System;
+using UniversalEditor.Accessors;
+using UniversalEditor.DataFormats.Package.OpenPackagingConvention;
+using UniversalEditor.ObjectModels.Package;
+
+namespace UniversalEditor.TestProject
+{
+	class MainClass
+	{
+		public static void Main (string [] args)
+		{
+			string fileName = "/tmp/UETest/test.opc";
+
+			PackageObjectModel om = new PackageObjectModel ();
+			OPCDataFormat df = new OPCDataFormat ();
+
+			Document.Save (om, df, new FileAccessor (fileName, true, true));
+		}
+	}
+}
diff --git a/CSharp/Applications/UniversalEditor.TestProject/Properties/AssemblyInfo.cs b/CSharp/Applications/UniversalEditor.TestProject/Properties/AssemblyInfo.cs
new file mode 100644
index 00000000..69fd85b4
--- /dev/null
+++ b/CSharp/Applications/UniversalEditor.TestProject/Properties/AssemblyInfo.cs
@@ -0,0 +1,26 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+// Information about this assembly is defined by the following attributes. 
+// Change them to the values specific to your project.
+
+[assembly: AssemblyTitle ("UniversalEditor.TestProject")]
+[assembly: AssemblyDescription ("")]
+[assembly: AssemblyConfiguration ("")]
+[assembly: AssemblyCompany ("")]
+[assembly: AssemblyProduct ("")]
+[assembly: AssemblyCopyright ("Mike Becker")]
+[assembly: AssemblyTrademark ("")]
+[assembly: AssemblyCulture ("")]
+
+// The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
+// The form "{Major}.{Minor}.*" will automatically update the build and revision,
+// and "{Major}.{Minor}.{Build}.*" will update just the revision.
+
+[assembly: AssemblyVersion ("1.0.*")]
+
+// The following attributes are used to specify the signing key for the assembly, 
+// if desired. See the Mono documentation for more information about signing.
+
+//[assembly: AssemblyDelaySign(false)]
+//[assembly: AssemblyKeyFile("")]
diff --git a/CSharp/Applications/UniversalEditor.TestProject/UniversalEditor.TestProject.csproj b/CSharp/Applications/UniversalEditor.TestProject/UniversalEditor.TestProject.csproj
new file mode 100644
index 00000000..8a610c77
--- /dev/null
+++ b/CSharp/Applications/UniversalEditor.TestProject/UniversalEditor.TestProject.csproj
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{242A32D8-9A3A-4FE3-902B-AB9C3154723A}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>UniversalEditor.TestProject</RootNamespace>
+    <AssemblyName>UniversalEditor.TestProject</AssemblyName>
+    <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ExternalConsole>true</ExternalConsole>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ExternalConsole>true</ExternalConsole>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\Plugins\UniversalEditor.Plugins.Microsoft\UniversalEditor.Plugins.Microsoft.csproj">
+      <Project>{4698BC3F-EC29-42EB-9AED-3D8F9983A108}</Project>
+      <Name>UniversalEditor.Plugins.Microsoft</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\Libraries\UniversalEditor.Essential\UniversalEditor.Essential.csproj">
+      <Project>{30467E5C-05BC-4856-AADC-13906EF4CADD}</Project>
+      <Name>UniversalEditor.Essential</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\Libraries\UniversalEditor.Core\UniversalEditor.Core.csproj">
+      <Project>{2D4737E6-6D95-408A-90DB-8DFF38147E85}</Project>
+      <Name>UniversalEditor.Core</Name>
+    </ProjectReference>
+    <ProjectReference Include="..\..\Plugins\UniversalEditor.Plugins.FileSystem\UniversalEditor.Plugins.FileSystem.csproj">
+      <Project>{76FD1306-9CA4-428F-993B-B7E4EEEACBF3}</Project>
+      <Name>UniversalEditor.Plugins.FileSystem</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/CSharp/UniversalEditor.sln b/CSharp/UniversalEditor.sln
index 4931b3f0..3a25a9c4 100644
--- a/CSharp/UniversalEditor.sln
+++ b/CSharp/UniversalEditor.sln
@@ -133,6 +133,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UniversalEditor.Plugins.Fam
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UniversalEditor.Plugins.FamilyTreeMaker.UserInterface", "Plugins.UserInterface\UniversalEditor.Plugins.FamilyTreeMaker.UserInterface\UniversalEditor.Plugins.FamilyTreeMaker.UserInterface.csproj", "{E6C8A539-F219-4BD0-A2F4-E7064ABF6777}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UniversalEditor.TestProject", "Applications\UniversalEditor.TestProject\UniversalEditor.TestProject.csproj", "{242A32D8-9A3A-4FE3-902B-AB9C3154723A}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -385,6 +387,10 @@ Global
 		{E6C8A539-F219-4BD0-A2F4-E7064ABF6777}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{E6C8A539-F219-4BD0-A2F4-E7064ABF6777}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{E6C8A539-F219-4BD0-A2F4-E7064ABF6777}.Release|Any CPU.Build.0 = Release|Any CPU
+		{242A32D8-9A3A-4FE3-902B-AB9C3154723A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{242A32D8-9A3A-4FE3-902B-AB9C3154723A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{242A32D8-9A3A-4FE3-902B-AB9C3154723A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{242A32D8-9A3A-4FE3-902B-AB9C3154723A}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{6F0AB1AF-E1A1-4D19-B19C-05BBB15C94B2} = {05D15661-E684-4EC9-8FBD-C014BA433CC5}
@@ -447,6 +453,7 @@ Global
 		{B8573BB1-A0CD-41F4-A775-E0CB79555C59} = {20F315E0-52AE-479F-AF43-3402482C1FC8}
 		{74A835FD-93B8-4268-B120-1ACAA128AC7B} = {2ED32D16-6C06-4450-909A-40D32DA67FB4}
 		{E6C8A539-F219-4BD0-A2F4-E7064ABF6777} = {2ED32D16-6C06-4450-909A-40D32DA67FB4}
+		{242A32D8-9A3A-4FE3-902B-AB9C3154723A} = {05D15661-E684-4EC9-8FBD-C014BA433CC5}
 	EndGlobalSection
 	GlobalSection(MonoDevelopProperties) = preSolution
 		Policies = $0