diff --git a/reference/win32service/constants.xml b/reference/win32service/constants.xml
index e5cbd0ec65..ddd341db48 100644
--- a/reference/win32service/constants.xml
+++ b/reference/win32service/constants.xml
@@ -26,7 +26,7 @@
      <entry><constant>WIN32_SERVICE_INTERACTIVE_PROCESS</constant></entry>
      <entry>0x00000100</entry>
      <entry>
-      The service can interact with the desktop.
+      The service can interact with the desktop. This option is not available on Windows Vista or later.
      </entry>
     </row>
    </tbody>