SGI's X server (Xsgi) continued to support the DPS X extension up through 6.5.22. It was removed after that, either for licensing or support reasons depending o

SGI's X server (Xsgi) continued to support the DPS X extension up through 6.5.22. It was removed after that, either for licensing or support reasons depending on which rumors you believe. Some of the Adobe apps (Photoshop, Illustrator) used DPS.