 DPMS was also provided by Caldera OpenDOS 7.01, DR-DOS 7.02 and 7.03, which, at least in some releases, added DPMS-enabled issues of DRFAT32 (a FAT32 redirector extension), LONGNAME (VFAT long filename support) and VDISK (virtual RAM disk).DR-DOS 7.03 contains the latest version of DPMS 1.44.DPMS was also provided by IBM's PC DOS 7.0 and PC DOS 2000, which came with an older version of Novell's DPMS server and a DPMS-enabled version of Stacker 4.02 bundled.