It is available for download at hobbes:
http://hobbes.nmsu.edu/cgi-bin/h-search?key=cadh.zip
CAD Popup menu, includes mini process list with kill, unmount/remount filesystems, WPS-reset, session manager hotkey modification.
The source code can be found at:
http://kannegieser.net/~veit/quelle/.
Source: OS2.jp