Could you add AutoHotkey 1.1? http://ahkscript.org/
The latest version of the installer is always available here:
http://ahkscript.org/download/ahk-install.exe
Running it with the /S switch installs silently with default options (or reinstalls with same options).
This text file always contains the current version number (for automated updating):
http://ahkscript.org/download/1.1/version.txt
Thanks