1 files changed, 37 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.BuildTasks/SnToolTask.cs b/src/DotNetOpenAuth.BuildTasks/SnToolTask.cs
new file mode 100644
index 0000000..1c32632
--- /dev/null
+++ b/src/DotNetOpenAuth.BuildTasks/SnToolTask.cs
@@ -0,0 +1,37 @@
+//-----------------------------------------------------------------------
+// <copyright file="SnToolTask.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.BuildTasks {
+	using System;
+	using System.IO;
+	using Microsoft.Build.Utilities;
+
+	public abstract class SnToolTask : ToolTask {
+		/// <summary>
+		/// Gets the name of the tool.
+		/// </summary>
+		/// <value>The name of the tool.</value>
+		protected override string ToolName {
+			get { return "sn.exe"; }
+		}
+
+		/// <summary>
+		/// Generates the full path to tool.
+		/// </summary>
+		protected override string GenerateFullPathToTool() {
+			string[] versions = new[] { "v6.0A", "v6.1" };
+			string fullPath = null;
+			foreach (string version in versions) {
+				fullPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles), @"Microsoft SDKs\Windows\" + version + @"\bin\" + this.ToolName);
+				if (File.Exists(fullPath)) {
+					return fullPath;
+				}
+			}
+
+			throw new FileNotFoundException("Unable to find sn.exe tool.", fullPath);
+		}
+	}
+}