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@@ -183,7 +183,12 @@ paragraphs.
   thread.  In this case, file operations will have effect only all pthreads the
   were started from the same parent thread.
 </p>
-<p>
+<p><b>Executing Programs within a File System</b>.
+  NuttX also provides internal interfaces for the execution of separately built
+  programs that reside in a file system.
+  These internal interfaces are, however, non-standard and are documented
+  <a href="NuttXNxFlat.html#binfmt">elsewhere</a>.
+<p><b>Task Control Interfaces</b>.
   The following task control interfaces are provided by NuttX:
 </p>
 <ul>