public partial class DebuggerExtensions
{
    [DllExport("Help")]
    public static void Help(IntPtr client, [MarshalAs(UnmanagedType.LPStr)] string args)
    {
        OnHelp(client, args);
    }

   [DllExport("help")]
   public static void help(IntPtr client, [MarshalAs(UnmanagedType.LPStr)] string args)
   {
        OnHelp(client, args);
   }

    const string _help = "...";
    const string _tksHelp = "...";

    private static void OnHelp(IntPtr client, string args)
    {
        // Must be the first thing in our extension.
        if (!InitApi(client))
            return;

        string command = args;

        if (args != null)
            command = args.ToLower();

        switch (command)
        {
            case "tks":
            case "tkstate":
                Console.WriteLine(_tksHelp);
            break;

            default:
                Console.WriteLine(_help);
            break;
        }
    }
}