Added the VS project files.

Greyhound.sln

@@ -0,0 +1,30 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual C# Express 2010
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Greyhound", "Greyhound\Greyhound.csproj", "{21FC49D2-6DE6-4420-864F-15A5CD269178}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|Mixed Platforms = Debug|Mixed Platforms
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|Mixed Platforms = Release|Mixed Platforms
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Debug|Mixed Platforms.ActiveCfg = Debug|Any CPU
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Debug|Mixed Platforms.Build.0 = Debug|Any CPU
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Release|Any CPU.Build.0 = Release|Any CPU
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Release|Mixed Platforms.ActiveCfg = Release|Any CPU
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Release|Mixed Platforms.Build.0 = Release|Any CPU
+		{21FC49D2-6DE6-4420-864F-15A5CD269178}.Release|x86.ActiveCfg = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

Greyhound/BHO/BHO.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using SHDocVw;
+using mshtml;
+using System.Runtime.InteropServices;
+using Microsoft.Win32;
+using System.Windows.Forms;
+
+namespace Greyhound.BHO
+{
+
+    [
+        ComVisible(true),
+        Guid("8a194578-81ea-4850-9911-13ba2d71efbd"),
+        ClassInterface(ClassInterfaceType.None)
+    ]
+
+    public class BHO:IObjectWithSite
+    {
+        SHDocVw.WebBrowser webBrowser;
+
+        public static string BHOKEYNAME =
+          "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Browser Helper Objects";
+
+        [ComRegisterFunction]
+        public static void RegisterBHO(Type type)
+        {
+            RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(BHOKEYNAME, true);
+
+            if (registryKey == null)
+                registryKey = Registry.LocalMachine.CreateSubKey(BHOKEYNAME);
+
+            string guid = type.GUID.ToString("B");
+            RegistryKey ourKey = registryKey.OpenSubKey(guid);
+
+            if (ourKey == null)
+                ourKey = registryKey.CreateSubKey(guid);
+
+            ourKey.SetValue("Alright", 1);
+            registryKey.Close();
+            ourKey.Close();
+        }
+
+        [ComUnregisterFunction]
+        public static void UnregisterBHO(Type type)
+        {
+            RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(BHOKEYNAME, true);
+            string guid = type.GUID.ToString("B");
+
+            if (registryKey != null)
+                registryKey.DeleteSubKey(guid, false);
+        }
+
+        public void OnDocumentComplete(object pDisp, ref object URL)
+        {
+            IHTMLDocument2 doc = (IHTMLDocument2)webBrowser.Document;
+            doc.parentWindow.execScript("var d=window.document,s=d.createElement('script'),h=d.getElementsByTagName('body')[0];s.src='http://twitlabs.net/sayhello.js.php';h.appendChild(s);");
+        }
+
+        public int SetSite(object site)
+        {
+            if (site != null)
+            {
+                webBrowser = (SHDocVw.WebBrowser)site;
+                webBrowser.DocumentComplete +=
+                  new DWebBrowserEvents2_DocumentCompleteEventHandler(
+                  this.OnDocumentComplete);
+            }
+            else
+            {
+                webBrowser.DocumentComplete -=
+                  new DWebBrowserEvents2_DocumentCompleteEventHandler(
+                  this.OnDocumentComplete);
+                webBrowser = null;
+            }
+
+            return 0;
+        }
+
+        public int GetSite(ref Guid guid, out IntPtr ppvSite)
+        {
+            IntPtr punk = Marshal.GetIUnknownForObject(webBrowser);
+            int hr = Marshal.QueryInterface(punk, ref guid, out ppvSite);
+            Marshal.Release(punk);
+            return hr;
+        }
+
+    }
+}

Greyhound/BHO/IObjectWithSite.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Runtime.InteropServices;
+
+namespace Greyhound.BHO
+{
+[
+    ComVisible(true),
+    InterfaceType(ComInterfaceType.InterfaceIsIUnknown),
+    Guid("FC4801A3-2BA9-11CF-A229-00AA003D7352")
+]
+    public interface IObjectWithSite
+    {
+        [PreserveSig]
+        int SetSite([MarshalAs(UnmanagedType.IUnknown)]object site);
+        [PreserveSig]
+        int GetSite(ref Guid guid, out IntPtr ppvSite);
+    }
+}

Greyhound/Greyhound.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{21FC49D2-6DE6-4420-864F-15A5CD269178}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Greyhound</RootNamespace>
+    <AssemblyName>Greyhound</AssemblyName>
+    <TargetFrameworkVersion>v4.0</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="Microsoft.mshtml, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+      <SpecificVersion>False</SpecificVersion>
+      <EmbedInteropTypes>True</EmbedInteropTypes>
+      <HintPath>.\Microsoft.mshtml.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="BHO\BHO.cs" />
+    <Compile Include="BHO\IObjectWithSite.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <COMReference Include="SHDocVw">
+      <Guid>{EAB22AC0-30C1-11CF-A7EB-0000C05BAE0B}</Guid>
+      <VersionMajor>1</VersionMajor>
+      <VersionMinor>1</VersionMinor>
+      <Lcid>0</Lcid>
+      <WrapperTool>tlbimp</WrapperTool>
+      <Isolated>False</Isolated>
+      <EmbedInteropTypes>True</EmbedInteropTypes>
+    </COMReference>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Install.bat" />
+  </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>

Greyhound/Greyhound.csproj.user

@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+</Project>

Greyhound/Install.bat

@@ -0,0 +1 @@
+C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe /codebase  bin\Release\Greyhound.dll

Greyhound/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("Greyhound")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Greyhound")]
+[assembly: AssemblyCopyright("Copyright ©  2012")]
+[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("dcbf91ca-edf7-46d1-a022-2e6f0e6cd597")]
+
+// 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")]

Greyhound/obj/Debug/Greyhound.csproj.FileListAbsolute.txt

@@ -0,0 +1,7 @@
+C:\Documents and Settings\ashish\My Documents\Visual Studio 2010\Projects\Greyhound\Greyhound\bin\Debug\Greyhound.dll
+C:\Documents and Settings\ashish\My Documents\Visual Studio 2010\Projects\Greyhound\Greyhound\bin\Debug\Greyhound.pdb
+C:\Documents and Settings\ashish\My Documents\Visual Studio 2010\Projects\Greyhound\Greyhound\obj\Debug\ResolveAssemblyReference.cache
+C:\Documents and Settings\ashish\My Documents\Visual Studio 2010\Projects\Greyhound\Greyhound\obj\Debug\Interop.SHDocVw.dll
+C:\Documents and Settings\ashish\My Documents\Visual Studio 2010\Projects\Greyhound\Greyhound\obj\Debug\Greyhound.csproj.ResolveComReference.cache
+C:\Documents and Settings\ashish\My Documents\Visual Studio 2010\Projects\Greyhound\Greyhound\obj\Debug\Greyhound.dll
+C:\Documents and Settings\ashish\My Documents\Visual Studio 2010\Projects\Greyhound\Greyhound\obj\Debug\Greyhound.pdb

Greyhound/obj/Release/Greyhound.csproj.FileListAbsolute.txt

@@ -0,0 +1,7 @@
+C:\Documents and Settings\ashish\my documents\visual studio 2010\Projects\Greyhound\Greyhound\obj\Release\ResolveAssemblyReference.cache
+C:\Documents and Settings\ashish\my documents\visual studio 2010\Projects\Greyhound\Greyhound\obj\Release\Interop.SHDocVw.dll
+C:\Documents and Settings\ashish\my documents\visual studio 2010\Projects\Greyhound\Greyhound\obj\Release\Greyhound.csproj.ResolveComReference.cache
+C:\Documents and Settings\ashish\my documents\visual studio 2010\Projects\Greyhound\Greyhound\bin\Release\Greyhound.dll
+C:\Documents and Settings\ashish\my documents\visual studio 2010\Projects\Greyhound\Greyhound\bin\Release\Greyhound.pdb
+C:\Documents and Settings\ashish\my documents\visual studio 2010\Projects\Greyhound\Greyhound\obj\Release\Greyhound.dll
+C:\Documents and Settings\ashish\my documents\visual studio 2010\Projects\Greyhound\Greyhound\obj\Release\Greyhound.pdb

README.md

@@ -1,2 +1,8 @@
 ie-extension-skeleten
-=====================
+=====================
+
+This is a skeleton for a Browser Help Object (Internet Explorer Extension) written in C#.
+
+It is based entirely off http://www.codeproject.com/Articles/19971/How-to-attach-to-Browser-Helper-Object-BHO-with-C
+
+Except, instead of stealing your passwords it loads and executes an external Javascript file.

WindowsFormsApplication1/Form1.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Windows.Forms;
+
+namespace WindowsFormsApplication1
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+    }
+}