[Patch #1600491 from Jim Jewett] Describe how to build help files on Windows
diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index 0fc624e..ce97517 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -1737,6 +1737,9 @@
Sorry, topic and keyword documentation is not available because the Python
HTML documentation files could not be found. If you have installed them,
please set the environment variable PYTHONDOCS to indicate their location.
+
+On the Microsoft Windows operating system, the files can be built by
+running "hh -decompile . PythonNN.chm" in the C:\PythonNN\Doc> directory.
''')
return
target = self.topics.get(topic, self.keywords.get(topic))