SF bug Win32: pydoc command isn't executable.
As the bug report notes, the Windows installer creates a useless pydoc
file in the base directory.  Changed the installer to rename it pydoc.pyw
instead.
diff --git a/PCbuild/python20.wse b/PCbuild/python20.wse
index cc9be9f..618db22 100644
--- a/PCbuild/python20.wse
+++ b/PCbuild/python20.wse
@@ -956,7 +956,7 @@
 end
 item: Install File
   Source=%_SRC_%\Tools\scripts\pydoc
-  Destination=%MAINDIR%\pydoc
+  Destination=%MAINDIR%\pydoc.pyw
   Description=Utility Scripts
   Flags=0000000000000010
 end