This script is a part of the soap server of dtc-xen running over https with auth.
xm_info_free_memory
xm_info_free_memory This shell script is a part of the dtc-xen package that is to be used by the dtc panel to manage a Xen VPS server.
This documentation describes xm_info_free_memory version 0.1.2. See http://www.gplhost.com/software-dtc-xen.html for updates.