Index: detail/cloning_base.hpp
===================================================================
--- detail/cloning_base.hpp	(revision 459)
+++ detail/cloning_base.hpp	(working copy)
@@ -28,6 +28,9 @@
 #if BOOST_WORKAROUND( __GNUC__, BOOST_TESTED_AT(4) )
 virtual //Disable bogus GCC warning.
 #endif
+#if  BOOST_WORKAROUND( BOOST_MSVC, BOOST_TESTED_AT(1500) )
+virtual //Disable bogus msvc warning.
+#endif
             ~cloning_base() throw()
                 {
                 }
Index: detail/counted_base.hpp.
===================================================================
--- detail/counted_base.hpp	(revision 459)
+++ detail/counted_base.hpp	(working copy)
@@ -39,6 +39,9 @@
 #if BOOST_WORKAROUND( __GNUC__, BOOST_TESTED_AT(4) )
 virtual //Disable bogus GCC warning.
 #endif
+#if  BOOST_WORKAROUND( BOOST_MSVC, BOOST_TESTED_AT(1500) )
+virtual //Disable bogus msvc warning.
+#endif
             ~counted_base() throw()
                 {
                 }