diff --git a/Substrate/SubstrateCS/Examples/Examples.sln b/Substrate/SubstrateCS/Examples/Examples.sln
index bff6188..e2937b1 100644
--- a/Substrate/SubstrateCS/Examples/Examples.sln
+++ b/Substrate/SubstrateCS/Examples/Examples.sln
@@ -17,6 +17,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Relight", "Relight\Relight.
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Maze", "Maze\Maze.csproj", "{62D70576-FE3A-4530-B283-889C14B52E9E}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PurgeEntities", "PurgeEntities\PurgeEntities.csproj", "{A64F274A-D5B7-45C2-92BA-4C9A64863DDC}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -55,6 +57,10 @@ Global
 		{62D70576-FE3A-4530-B283-889C14B52E9E}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{62D70576-FE3A-4530-B283-889C14B52E9E}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{62D70576-FE3A-4530-B283-889C14B52E9E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A64F274A-D5B7-45C2-92BA-4C9A64863DDC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A64F274A-D5B7-45C2-92BA-4C9A64863DDC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A64F274A-D5B7-45C2-92BA-4C9A64863DDC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A64F274A-D5B7-45C2-92BA-4C9A64863DDC}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/Substrate/SubstrateCS/Examples/PurgeEntities/Program.cs b/Substrate/SubstrateCS/Examples/PurgeEntities/Program.cs
new file mode 100644
index 0000000..42bba32
--- /dev/null
+++ b/Substrate/SubstrateCS/Examples/PurgeEntities/Program.cs
@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using Substrate;
+
+namespace PurgeEntities
+{
+    class Program
+    {
+        static void Main (string[] args)
+        {
+            // Process arguments
+            if (args.Length != 2 && args.Length != 6) {
+                Console.WriteLine("Usage: PurgeEntities <world> <entityID> [<x1> <z1> <x2> <z2>]");
+                return;
+            }
+            string dest = args[0];
+            string eid = args[1];
+
+            int x1 = BlockManager.MIN_X;
+            int x2 = BlockManager.MAX_X;
+            int z1 = BlockManager.MIN_Z;
+            int z2 = BlockManager.MAX_Z;
+
+            if (args.Length == 6) {
+                x1 = Convert.ToInt32(args[2]);
+                z1 = Convert.ToInt32(args[3]);
+                x2 = Convert.ToInt32(args[4]);
+                z2 = Convert.ToInt32(args[5]);
+            }
+
+            // Load world
+            BetaWorld world = BetaWorld.Open(dest);
+            ChunkManager cm = world.GetChunkManager();
+
+            // Remove entities
+            foreach (ChunkRef chunk in cm) {
+                // Skip chunks that don't cover our selected area
+                if (((chunk.X + 1) * chunk.XDim < x1) ||
+                    (chunk.X * chunk.XDim >= x2) ||
+                    ((chunk.Z + 1) * chunk.ZDim < z1) ||
+                    (chunk.Z * chunk.ZDim >= z2)) {
+                    continue;
+                }
+
+                // Delete the specified entities
+                chunk.RemoveEntities(eid);
+                cm.Save();
+            }
+        }
+    }
+}
diff --git a/Substrate/SubstrateCS/Examples/PurgeEntities/Properties/AssemblyInfo.cs b/Substrate/SubstrateCS/Examples/PurgeEntities/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..6da6ea7
--- /dev/null
+++ b/Substrate/SubstrateCS/Examples/PurgeEntities/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("PurgeEntities")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Microsoft")]
+[assembly: AssemblyProduct("PurgeEntities")]
+[assembly: AssemblyCopyright("Copyright © Microsoft 2011")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("d464b8c1-6bcc-46b9-9ade-ec5d1464dd4d")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/Substrate/SubstrateCS/Examples/PurgeEntities/PurgeEntities.csproj b/Substrate/SubstrateCS/Examples/PurgeEntities/PurgeEntities.csproj
new file mode 100644
index 0000000..ae7ba4a
--- /dev/null
+++ b/Substrate/SubstrateCS/Examples/PurgeEntities/PurgeEntities.csproj
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>9.0.30729</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{A64F274A-D5B7-45C2-92BA-4C9A64863DDC}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>PurgeEntities</RootNamespace>
+    <AssemblyName>PurgeEntities</AssemblyName>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Substrate, Version=0.4.1.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\bin\Release\Substrate.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\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.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>
\ No newline at end of file