HP-110 Portable Laptop DOS Drivers

[Michael Fehlhammer]

Hi Gerry,

it was me who contacted Chuck Guzis from Sydex and got the DOS drivers for HP Portable / Plus file format. I sent them to Dave Frederickson who suggested to post the files at the forum. Chuck gave his permission for publishing, but he is not willing to provide any support since he can't remember the details after more than 20 years.
Here are the files (two drivers in one zip archive):

  hpplus.zip (Size: 5.16 KB / Downloads: 36)

And that's what Chuck could remember about them:
> I did some digging last night after I sent you the archive. I note
> that there were two formats for the Portable Plus--a 9-sector and a 5-sector.
> The HP110.SYS file is for the 9 sector and the HP=PPLUS.SYS is for
> the 5-sector Portable Plus.
>
> I found newer (ca. 1995) versions of both drivers. The good news is
> that you need only insert a CONFIG.SYS line of the following form:
>
> DEVICE=HP-PPLUS.SYS
>
> or
>
> DEVICE=HP110.SYS
>
> The driver will locate a drive of the appropriate type automatically,
> so there's no /F switch. You can, however, force a drive selection
> with the /D:x switch.

By the way:
I never used these drivers because my Portable Plus / 9114B can read DOS disks which were written by a standard pc without any problems.
Maybe it doesn't work the other way round - when a pc tries to read disks written to by a Portable. I didn't try that yet.