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diff --git a/src/DotNetOpenAuth.OAuth/OAuth/Messages/AccessProtectedResourceRequest.cs b/src/DotNetOpenAuth.OAuth/OAuth/Messages/AccessProtectedResourceRequest.cs
new file mode 100644
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+++ b/src/DotNetOpenAuth.OAuth/OAuth/Messages/AccessProtectedResourceRequest.cs
@@ -0,0 +1,72 @@
+//-----------------------------------------------------------------------
+// <copyright file="AccessProtectedResourceRequest.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.OAuth.Messages {
+	using System;
+	using System.Collections.Generic;
+	using System.Diagnostics.CodeAnalysis;
+	using DotNetOpenAuth.Messaging;
+
+	/// <summary>
+	/// A message attached to a request for protected resources that provides the necessary
+	/// credentials to be granted access to those resources.
+	/// </summary>
+	public class AccessProtectedResourceRequest : SignedMessageBase, ITokenContainingMessage, IMessageWithBinaryData {
+		/// <summary>
+		/// A store for the binary data that is carried in the message.
+		/// </summary>
+		private List<MultipartPostPart> binaryData = new List<MultipartPostPart>();
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="AccessProtectedResourceRequest"/> class.
+		/// </summary>
+		/// <param name="serviceProvider">The URI of the Service Provider endpoint to send this message to.</param>
+		/// <param name="version">The OAuth version.</param>
+		protected internal AccessProtectedResourceRequest(MessageReceivingEndpoint serviceProvider, Version version)
+			: base(MessageTransport.Direct, serviceProvider, version) {
+		}
+
+		/// <summary>
+		/// Gets or sets the Token.
+		/// </summary>
+		[SuppressMessage("Microsoft.Design", "CA1033:InterfaceMethodsShouldBeCallableByChildTypes", Justification = "This property IS accessible by a different name.")]
+		string ITokenContainingMessage.Token {
+			get { return this.AccessToken; }
+			set { this.AccessToken = value; }
+		}
+
+		/// <summary>
+		/// Gets or sets the Access Token.
+		/// </summary>
+		/// <remarks>
+		/// In addition to just allowing OAuth to verify a valid message,
+		/// this property is useful on the Service Provider to verify that the access token
+		/// has proper authorization for the resource being requested, and to know the
+		/// context around which user provided the authorization.
+		/// </remarks>
+		[MessagePart("oauth_token", IsRequired = true)]
+		public string AccessToken { get; set; }
+
+		#region IMessageWithBinaryData Members
+
+		/// <summary>
+		/// Gets the parts of the message that carry binary data.
+		/// </summary>
+		/// <value>A list of parts.  Never null.</value>
+		public IList<MultipartPostPart> BinaryData {
+			get { return this.binaryData; }
+		}
+
+		/// <summary>
+		/// Gets a value indicating whether this message should be sent as multi-part POST.
+		/// </summary>
+		public bool SendAsMultipart {
+			get { return this.HttpMethod == "POST" && this.BinaryData.Count > 0; }
+		}
+
+		#endregion
+	}
+}