help/config: note 64-bit Windows registry key used with 32-bit Python Before this patch the only place that documented the use of a different registry key was on the wiki page for installing on Windows from sources, while most users will use a pre-packaged installer and the supplied help files. This patch documents in the supplied help files that an alternate registry key is used for the installation/system configuration file when using 32-bit Python on a 64-bit Windows.

--- a/mercurial/help/config.txt	Tue May 07 23:49:03 2013 +0900
+++ b/mercurial/help/config.txt	Sun May 12 10:09:34 2013 +0100
@@ -85,6 +85,9 @@
     be read.  Mercurial checks each of these locations in the specified
     order until one or more configuration files are detected.
 
+.. note:: The registry key ``HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Mercurial``
+   is used when running 32-bit Python on 64-bit Windows.
+
 Syntax
 ======