Model: DeskWriter 550c, 560c, 500 series
Operating System: Mac OS (Note: might work with other versions of this os.)
"sea" (self-extracting archive)
written for HP by palomar software,
oceanside, CA, usa, approx 1997,
not avail from HP!
installs v 6.0.4. works on our
550c,OS 9.0.4. good luck!