diff --git a/include/boost/regex/config.hpp b/include/boost/regex/config.hpp
index a88a7852..3b92e6ae 100644
--- a/include/boost/regex/config.hpp
+++ b/include/boost/regex/config.hpp
@@ -163,8 +163,10 @@
  * with MSVC and the /Zc:wchar_t option we place some extra unsigned short versions
  * of the non-inline functions in the library, so that users can still link to the lib,
  * irrespective of whether their own code is built with /Zc:wchar_t.
+ * Note that this does NOT WORK with VC10 when the C++ locale is in effect as
+ * the locale's <unsigned short> facets simply do not compile in that case.
  */
-#if defined(__cplusplus) && (defined(BOOST_MSVC) || defined(__ICL)) && !defined(BOOST_NO_INTRINSIC_WCHAR_T) && defined(BOOST_WINDOWS) && !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION) && !defined(BOOST_RWSTD_VER)
+#if defined(__cplusplus) && (defined(BOOST_MSVC) || defined(__ICL)) && !defined(BOOST_NO_INTRINSIC_WCHAR_T) && defined(BOOST_WINDOWS) && !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION) && !defined(BOOST_RWSTD_VER) && ((_MSC_VER < 1600) || !defined(BOOST_REGEX_USE_CPP_LOCALE))
 #  define BOOST_REGEX_HAS_OTHER_WCHAR_T
 #  ifdef BOOST_MSVC
 #     pragma warning(push)