diff --git a/include/boost/smart_ptr/detail/spinlock_w32.hpp b/include/boost/smart_ptr/detail/spinlock_w32.hpp
index f383537..fac21fe 100644
--- a/include/boost/smart_ptr/detail/spinlock_w32.hpp
+++ b/include/boost/smart_ptr/detail/spinlock_w32.hpp
@@ -24,7 +24,7 @@
 
 #define BOOST_COMPILER_FENCE __memory_barrier();
 
-#elif defined( _MSC_VER )
+#elif defined( _MSC_VER ) && _MSC_VER >= 1310
 
 extern "C" void _ReadWriteBarrier();
 #pragma intrinsic( _ReadWriteBarrier )
diff --git a/include/boost/smart_ptr/detail/yield_k.hpp b/include/boost/smart_ptr/detail/yield_k.hpp
index 1bce751..e3610f1 100644
--- a/include/boost/smart_ptr/detail/yield_k.hpp
+++ b/include/boost/smart_ptr/detail/yield_k.hpp
@@ -27,7 +27,7 @@
 
 // BOOST_SMT_PAUSE
 
-#if defined(_MSC_VER) && ( defined(_M_IX86) || defined(_M_X64) )
+#if defined(_MSC_VER) && _MSC_VER >= 1310 && ( defined(_M_IX86) || defined(_M_X64) )
 
 extern "C" void _mm_pause();
 #pragma intrinsic( _mm_pause )