diff --git a/config.htm b/config.htm
index 6b5cd9eb..3c1188d6 100644
--- a/config.htm
+++ b/config.htm
@@ -1144,6 +1144,11 @@ void g() { return f(); }</pre>
             <td valign="top">Defined if the compiler is an Intel compiler, takes the same 
                value as the compiler version macro.</td>
          </tr>
+         <TR>
+            <TD vAlign="top">BOOST_WINDOWS</TD>
+            <TD vAlign="top">&lt;boost/config.hpp&gt;</TD>
+            <TD vAlign="top">Defined if the Windows platfrom API is available.</TD>
+         </TR>
          <tr>
             <td>BOOST_DINKUMWARE_STDLIB</td>
             <td>&lt;boost/config.hpp&gt;</td>
diff --git a/include/boost/config/platform/win32.hpp b/include/boost/config/platform/win32.hpp
index ebe140ca..548bff28 100644
--- a/include/boost/config/platform/win32.hpp
+++ b/include/boost/config/platform/win32.hpp
@@ -45,5 +45,6 @@
 #ifndef BOOST_DISABLE_WIN32
 // WEK: Added
 #define BOOST_HAS_FTIME
+#define BOOST_WINDOWS 1
 
 #endif