Expert Sleepers Augustus Loop v2.4.1 - Manual (Page 74)

Release Notes
Issues with keyboard input
There are known issues with some hosts, in particular Ableton Live, and all plug-ins that
require keyboard input. (Augustus Loop is such a plug-in.) Ableton have done something
to address this issue in Live 7.0.2.
See
• http://www.ableton.com/forum/viewtopic.php?t=84434
• http://www.ableton.com/pages/faq/options_text
Basically you can enable keyboard presses in plug-ins by creating or editing a file called
Options.txt
which lives here:
C:\Documents and Settings\\Application Data\Ableton\Live
7.0.2\Preferences
The file needs to contain the line:
-_EnsureKeyMessagesForPlugins