Contains temporary files used by the uuxqt daemon to execute remote command requests.
The /var/spool/uucp/.Xqtdir directory contains temporary files used by the Basic Networking Utilities (BNU) uuxqt daemon to execute remote command requests.
The uux command.
The uuxqt daemon.
Understanding the BNU File and Directory Structure in AIX 5L Version 5.2 System Management Guide: Communications and Networks.