Model: Prosignia 150
Operating System: Windows 98 (Note: might work with other versions of this os.)
SP11536.zip is the main driver. Install this first. Extract all of the files from this ZIP file. Than go into the disk1 directory of where you just extracted the SP11536 files and run Setup.exe
The other two files are for IE 5.0 browser extensions. If you have Windows 98, extract and run Setup.exe of the file SP11537.zip If you have Windows NT4, extract and run setup.exe of the file SP11538.zip
I haven't tested these yet, but the Sp11536 file does work.
These files may work for the early Compaq Presario 1200 notebooks as well. These files may work with Windows 95, ME and XP, but don't count on it. Putting these operating systems on a Prosignia 150 isn't the best idea in the world to begin with.
Good luck with it. I will have an answer to whether if they work on the Presario 1200 notebooks as well. I guess these drivers originally for the Prosignia 310/320/330 models, but this worked great with the Prosignia 150 on Windows 2000.