diff --git a/uzLib.Lite/Extensions/VSHelper.cs b/uzLib.Lite/Extensions/VSHelper.cs
index de3e5b5..befcc60 100644
--- a/uzLib.Lite/Extensions/VSHelper.cs
+++ b/uzLib.Lite/Extensions/VSHelper.cs
@@ -14,24 +14,6 @@ namespace uzLib.Lite.Extensions
 {
     public static class VSHelper
     {
-        //public static FileInfo GetStartUpProject(string slnPath)
-        //{
-        //    if (string.IsNullOrEmpty(slnPath))
-        //        throw new ArgumentNullException("slnPath");
-
-        //    if (!File.Exists(slnPath))
-        //        throw new ArgumentException("Requested SLN file doesn't exists.", "slnPath");
-
-        //    var fileInfo = new FileInfo(slnPath);
-
-        //    if (fileInfo.Extension.ToLowerInvariant() != ".sln")
-        //        throw new ArgumentException("Specified argument must be a file path with extension SLN.", "slnPath");
-
-        //    return GetStartUpProject(fileInfo);
-        //}
-
-        //public static FileInfo GetStartUpProject(FileInfo solutionFile)
-
         public static string GetStartUpProjectName(string slnPath)
         {
             var startupProject = GetStartUpProject(slnPath);
@@ -55,12 +37,6 @@ public static Project GetStartUpProject(string slnPath)
             if (fileInfo.Extension.ToLowerInvariant() != ".sln")
                 throw new ArgumentException("Specified argument must be a file path with extension SLN.", "slnPath");
 
-            //FileInfo startUpProject = null;
-
-            //string projectName = Path.GetFileNameWithoutExtension(solutionFile.FullName);
-
-            //FileInfo suoFileInfo = new FileInfo(Path.Combine(solutionFile.Directory.FullName, string.Format(projectName + "{0}", ".suo")));
-
             var matches = Directory.GetFiles(Path.GetDirectoryName(slnPath), "*.suo", SearchOption.AllDirectories);
 
             if (matches.IsNullOrEmpty())
@@ -71,14 +47,6 @@ public static Project GetStartUpProject(string slnPath)
 
             var solution = SolutionParser.Parse(slnPath);
 
-            //var testGuid = StartupOptions.ReadStartupOptions(suoFilePath);
-
-            //if (!string.IsNullOrEmpty(guid))
-            //{
-            //    string projectname = GetProjectNameFromGuid(solutionFile, guid).Trim().TrimStart('\"').TrimEnd('\"');
-            //    startUpProject = new FileInfo(Path.Combine(solutionFile.DirectoryName, projectname));
-            //}
-
             return solution.Projects.FirstOrDefault(p => p.Guid == startupGuid);
         }
 
@@ -116,8 +84,6 @@ private static string GetProjectNameFromGuid(FileInfo solutionFile, string guid)
 
         private static Guid ReadStartupOptions(string filePath)
         {
-            //Guid guid = new Guid();
-
             if (string.IsNullOrEmpty(filePath))
                 throw new ArgumentNullException("No file selected.", "filePath");
 
@@ -141,19 +107,6 @@ private static Guid ReadStartupOptions(string filePath)
 
             string headingStr = Encoding.Unicode.GetString(bytes);
 
-            //var guidBytes = new byte[36 * 2];
-
-            //for (int i2 = 0; i2 < bytes.Length; i2++)
-            //    if (bytes.Skip(i2).Take(tokenBytes.Length).SequenceEqual(tokenBytes))
-            //    {
-            //        Array.Copy(bytes, i2 + tokenBytes.Length + 2, guidBytes, 0, guidBytes.Length); // V2015
-            //        // Array.Copy(bytes, i2 + 4 + tokenBytes.Length + 2, guidBytes, 0, guidBytes.Length);
-
-            //        guid = new Guid(Encoding.Unicode.GetString(guidBytes));
-
-            //        break;
-            //    }
-
             return new Guid(Regex.Match(headingStr, regexpToken).Groups[regexpGroup].Value);
         }
 
@@ -232,148 +185,4 @@ private enum STGM
 
         #endregion Nested type: STGM
     }
-
-    public static class StartupOptions
-    {
-        public static IDictionary<Guid, int> ReadStartupOptions(string filePath)
-        {
-            if (filePath == null)
-                throw new ArgumentNullException("filePath");
-
-            // look for this token in the file
-            const string token = "dwStartupOpt\0=";
-            byte[] tokenBytes = Encoding.Unicode.GetBytes(token);
-            Dictionary<Guid, int> dic = new Dictionary<Guid, int>();
-            byte[] bytes;
-            using (MemoryStream stream = new MemoryStream())
-            {
-                CompoundFileUtilities.ExtractStream(filePath, "SolutionConfiguration", stream);
-                bytes = stream.ToArray();
-            }
-
-            int i = 0;
-            do
-            {
-                bool found = true;
-                for (int j = 0; j < tokenBytes.Length; j++)
-                {
-                    if (bytes[i + j] != tokenBytes[j])
-                    {
-                        found = false;
-                        break;
-                    }
-                }
-                if (found)
-                {
-                    // back read the corresponding project guid
-                    // guid is formatted as {guid}
-                    // len to read is Guid length* 2 and there are two offset bytes between guid and startup options token
-                    byte[] guidBytes = new byte[38 * 2];
-                    Array.Copy(bytes, i - guidBytes.Length - 2, guidBytes, 0, guidBytes.Length);
-                    Guid guid = new Guid(Encoding.Unicode.GetString(guidBytes));
-
-                    // skip VT_I4
-                    int options = BitConverter.ToInt32(bytes, i + tokenBytes.Length + 2);
-                    dic[guid] = options;
-                }
-                i++;
-            }
-            while (i < bytes.Length);
-            return dic;
-        }
-    }
-
-    public static class CompoundFileUtilities
-    {
-        public static void ExtractStream(string filePath, string streamName, string streamPath)
-        {
-            if (filePath == null)
-                throw new ArgumentNullException("filePath");
-
-            if (streamName == null)
-                throw new ArgumentNullException("streamName");
-
-            if (streamPath == null)
-                throw new ArgumentNullException("streamPath");
-
-            using (FileStream output = new FileStream(streamPath, FileMode.Create))
-            {
-                ExtractStream(filePath, streamName, output);
-            }
-        }
-
-        public static void ExtractStream(string filePath, string streamName, Stream output)
-        {
-            if (filePath == null)
-                throw new ArgumentNullException("filePath");
-
-            if (streamName == null)
-                throw new ArgumentNullException("streamName");
-
-            if (output == null)
-                throw new ArgumentNullException("output");
-
-            IStorage storage;
-            int hr = StgOpenStorage(filePath, null, STGM.READ | STGM.SHARE_DENY_WRITE, IntPtr.Zero, 0, out storage);
-            if (hr != 0)
-                throw new Win32Exception(hr);
-
-            try
-            {
-                IStream stream;
-                hr = storage.OpenStream(streamName, IntPtr.Zero, STGM.READ | STGM.SHARE_EXCLUSIVE, 0, out stream);
-                if (hr != 0)
-                    throw new Win32Exception(hr);
-
-                int read = 0;
-                IntPtr readPtr = Marshal.AllocHGlobal(Marshal.SizeOf(read));
-                try
-                {
-                    byte[] bytes = new byte[0x1000];
-                    do
-                    {
-                        stream.Read(bytes, bytes.Length, readPtr);
-                        read = Marshal.ReadInt32(readPtr);
-                        if (read == 0)
-                            break;
-
-                        output.Write(bytes, 0, read);
-                    }
-                    while (true);
-                }
-                finally
-                {
-                    Marshal.FreeHGlobal(readPtr);
-                    Marshal.ReleaseComObject(stream);
-                }
-            }
-            finally
-            {
-                Marshal.ReleaseComObject(storage);
-            }
-        }
-
-        [ComImport, Guid("0000000b-0000-0000-C000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
-        private interface IStorage
-        {
-            void Unimplemented0();
-
-            [PreserveSig]
-            int OpenStream([MarshalAs(UnmanagedType.LPWStr)] string pwcsName, IntPtr reserved1, STGM grfMode, uint reserved2, out IStream ppstm);
-
-            // other methods not declared for simplicity
-        }
-
-        [Flags]
-        private enum STGM
-        {
-            READ = 0x00000000,
-            SHARE_DENY_WRITE = 0x00000020,
-            SHARE_EXCLUSIVE = 0x00000010,
-            // other values not declared for simplicity
-        }
-
-        [DllImport("ole32.dll")]
-        private static extern int StgOpenStorage([MarshalAs(UnmanagedType.LPWStr)] string pwcsName, IStorage pstgPriority, STGM grfMode, IntPtr snbExclude, uint reserved, out IStorage ppstgOpen);
-    }
 }
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