Twin directories of robotx:

[DIR]  ftp://alge.anart.no/pub/xview/Xview/apps/robotx/
[DIR]  ftp://ftp.nstu.ru/pub/sources/graphics/applications/robotx/
[DIR]  ftp://ftp.auxio.org/pub/mirrors/step.polymtl.ca/pub/Xview/apps/robotx/
[DIR]  ftp://ftp.auxio.org/pub/mirrors/step.polymtl.ca/pub/Xview/pub/Xview/apps/robotx/