diff --git a/boost/mpl/aux_/config/msvc.hpp b/boost/mpl/aux_/config/msvc.hpp
new file mode 100644
index 0000000..fe89cda
--- /dev/null
+++ b/boost/mpl/aux_/config/msvc.hpp
@@ -0,0 +1,21 @@
+
+#ifndef BOOST_MPL_AUX_CONFIG_MSVC_HPP_INCLUDED
+#define BOOST_MPL_AUX_CONFIG_MSVC_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2002-2004
+//
+// Distributed under the Boost Software License, Version 1.0. 
+// (See accompanying file LICENSE_1_0.txt or copy at 
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Id: msvc.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
+// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
+// $Revision: 49267 $
+
+
+// BOOST_MSVC is defined here:
+#include <boost/config.hpp>
+
+#endif // BOOST_MPL_AUX_CONFIG_MSVC_HPP_INCLUDED