re: Old DOS program wants COM port
Monday, September 10, 2001 at 1:46 pm
Windows 2000 Annoyances Discussion Forum
Posted by Curt R
(1315 messages posted)
Unlike the 9x series.........2000 isn't based on DOS, it's based on NT. There
is no "boot to md-dos" included in 2000. NT/2000 both have the hardware isolated
from the operating system by the HAL (hardware access layer) which prevents app's
like the one you're talking about from directly accessing the hardware. This is
not true of 9x which is why you can run that application in it. The only way I know
of getting around your problem is to get some updated 2000/NT drivers from the manufacturer.
On Sunday, September 9, 2001 at 7:29 pm, Mark Chatterton wrote:
>What happened to the ability to start the computer
>in "DOS mode" when running Windows-2000?
>
>I have an old DOS program that wants to use its own
>COM port driver to communicate with a special medical
>device connected to COM1. Under Windows-95/98, I'd
>restart the computer in DOS mode, and the program
>would run fine. Under Windows-2000, though, there is
>no DOS mode! The program can't communicate with
>the serial device connected to COM1 (presumably
>because of conflict with the Windows COM driver).
>
>Here's what I've tried:
> - Used "Device Manger" to disable COM1.
> I think this completely turned off COM1, so the
> program was really screwed.
> - Used "Add/Remove Hardware" on Control Panel
> to uninstall the COM driver. No luck.
- Written in response to:
- Old DOS program wants COM port (Mark Chatterton: Sunday, September 9, 2001 at 7:29 pm)
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