diff --git a/ndnboost/mpl/aux_/preprocessed/msvc60/less_equal.hpp b/ndnboost/mpl/aux_/preprocessed/msvc60/less_equal.hpp
new file mode 100644
index 0000000..f203fbe
--- /dev/null
+++ b/ndnboost/mpl/aux_/preprocessed/msvc60/less_equal.hpp
@@ -0,0 +1,102 @@
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// 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)
+//
+
+// Preprocessed version of "ndnboost/mpl/less_equal.hpp" header
+// -- DO NOT modify by hand!
+
+namespace ndnboost { namespace mpl {
+
+template<
+      typename Tag1
+    , typename Tag2
+
+    , BOOST_MPL_AUX_NTTP_DECL(int, tag1_)  = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag1)::value
+    , BOOST_MPL_AUX_NTTP_DECL(int, tag2_)  = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag2)::value
+    >
+struct less_equal_impl
+    : if_c<
+          ( tag1_ > tag2_ )
+        , aux::cast2nd_impl< less_equal_impl< Tag1,Tag1 >,Tag1, Tag2 >
+        , aux::cast1st_impl< less_equal_impl< Tag2,Tag2 >,Tag1, Tag2 >
+        >::type
+{
+};
+
+/// for Digital Mars C++/compilers with no CTPS/TTP support
+template<> struct less_equal_impl< na,na >
+{
+    template< typename U1, typename U2 > struct apply
+    {
+        typedef apply type;
+        BOOST_STATIC_CONSTANT(int, value  = 0);
+    };
+};
+
+template<> struct less_equal_impl< na,integral_c_tag >
+{
+    template< typename U1, typename U2 > struct apply
+    {
+        typedef apply type;
+        BOOST_STATIC_CONSTANT(int, value  = 0);
+    };
+};
+
+template<> struct less_equal_impl< integral_c_tag,na >
+{
+    template< typename U1, typename U2 > struct apply
+    {
+        typedef apply type;
+        BOOST_STATIC_CONSTANT(int, value  = 0);
+    };
+};
+
+template< typename T > struct less_equal_tag
+{
+    typedef typename T::tag type;
+};
+
+template<
+      typename BOOST_MPL_AUX_NA_PARAM(N1)
+    , typename BOOST_MPL_AUX_NA_PARAM(N2)
+    >
+struct less_equal
+    : aux::msvc_eti_base< typename apply_wrap2<
+          less_equal_impl<
+              typename less_equal_tag<N1>::type
+            , typename less_equal_tag<N2>::type
+            >
+        , N1
+        , N2
+        >::type >::type
+
+{
+    BOOST_MPL_AUX_LAMBDA_SUPPORT(2, less_equal, (N1, N2))
+
+};
+
+BOOST_MPL_AUX_NA_SPEC2(2, 2, less_equal)
+
+}}
+
+namespace ndnboost { namespace mpl {
+
+template<>
+struct less_equal_impl< integral_c_tag,integral_c_tag >
+{
+    template< typename N1, typename N2 > struct apply
+
+    {
+        BOOST_STATIC_CONSTANT(bool, value =
+             ( BOOST_MPL_AUX_VALUE_WKND(N1)::value <=
+             BOOST_MPL_AUX_VALUE_WKND(N2)::value )
+            );
+        typedef bool_<value> type;
+    };
+};
+
+}}