Serial ports is nor reconized in WindowsXP

Windows XP Hardware >> Serial ports is nor reconized in WindowsXP Hello all
Iâ??m using Microsoft MSCOMM activeX control and hyperterminal for RS232 in
several Windows systems.
Particularly in Windows XP when I connect to a Mettler scale and turn off
the PC and restart it again the serial ports disappear. Hyperterminal and the
MSCOMM control can't find the serial ports.
To recover from it is necessary to disconnect from power every thing, and
start the PC first, before the scale.
This behavior just happens in Windows XP.
Please anyone whith ideas of how can this problem be fixed.

Thanks a lot.

Federico Eslava

Windows XP942

Windows XP Hardware >> Serial ports is nor reconized in WindowsXP As usual with RS323... check the cable, and especially the grounding of all
parts.

--PA

"FEM" wrote:
> Hello all
> Iâ??m using Microsoft MSCOMM activeX control and hyperterminal for RS232 in
> several Windows systems.
> Particularly in Windows XP when I connect to a Mettler scale and turn off
> the PC and restart it again the serial ports disappear. Hyperterminal and the
> MSCOMM control can't find the serial ports.
> To recover from it is necessary to disconnect from power every thing, and
> start the PC first, before the scale.
> This behavior just happens in Windows XP.
> Please anyone whith ideas of how can this problem be fixed.
>
> Thanks a lot.
>
> Federico Eslava

Windows XP Hardware >> Serial ports is nor reconized in WindowsXP Thanks for your help , I did it but still happening, what is very unusual is
that this is not happening in W98 and W2000, just XP. It is happening in
different PCs as DELL, COMPACT and HP.
The serial programs works just fine connected to an scale, but when the PC
is turn off without turning off first the scale, and then when it is
restarted the COMM port appears to be used by other device and is not
available, so the hyperterminal and the programs which use serial comms fails.
To reactivate we discover to ways:
1. Turn off the PC, disconnect the scale and turn it on again and the
reconnect the scale.
2. Uninstall the serial port and install it again

Off course none of the solutions are practical.

I donâ??t know is anyone has notice this same behavior using XP serial ports?

"Pavel A." wrote:

> As usual with RS323... check the cable, and especially the grounding of all
> parts.
>
> --PA
>
> "FEM" wrote:
> > Hello all
> > Iâ??m using Microsoft MSCOMM activeX control and hyperterminal for RS232 in
> > several Windows systems.
> > Particularly in Windows XP when I connect to a Mettler scale and turn off
> > the PC and restart it again the serial ports disappear. Hyperterminal and the
> > MSCOMM control can't find the serial ports.
> > To recover from it is necessary to disconnect from power every thing, and
> > start the PC first, before the scale.
> > This behavior just happens in Windows XP.
> > Please anyone whith ideas of how can this problem be fixed.
> >
> > Thanks a lot.
> >
> > Federico Eslava

Windows XP Hardware >> Serial ports is nor reconized in WindowsXP Use /fastdetect in BOOT.INI see link

Available switch options for the Windows XP and the Windows Server 2003
Boot.ini files
http://support.microsoft.com/default.aspx?scid=kb;en-us;833721

FEM wrote:

> Thanks for your help , I did it but still happening, what is very unusual is
> that this is not happening in W98 and W2000, just XP. It is happening in
> different PCs as DELL, COMPACT and HP.
> The serial programs works just fine connected to an scale, but when the PC
> is turn off without turning off first the scale, and then when it is
> restarted the COMM port appears to be used by other device and is not
> available, so the hyperterminal and the programs which use serial comms fails.
> To reactivate we discover to ways:
> 1. Turn off the PC, disconnect the scale and turn it on again and the
> reconnect the scale.
> 2. Uninstall the serial port and install it again
>
> Off course none of the solutions are practical.
>
> I donâ??t know is anyone has notice this same behavior using XP serial ports?
>
>
> "Pavel A." wrote:
>
>
>>As usual with RS323... check the cable, and especially the grounding of all
>>parts.
>>
>>--PA
>>
>>"FEM" wrote:
>>
>>>Hello all
>>>Iâ??m using Microsoft MSCOMM activeX control and hyperterminal for RS232 in
>>>several Windows systems.
>>>Particularly in Windows XP when I connect to a Mettler scale and turn off
>>>the PC and restart it again the serial ports disappear. Hyperterminal and the
>>>MSCOMM control can't find the serial ports.
>>>To recover from it is necessary to disconnect from power every thing, and
>>>start the PC first, before the scale.
>>>This behavior just happens in Windows XP.
>>>Please anyone whith ideas of how can this problem be fixed.
>>>
>>>Thanks a lot.
>>>
>>>Federico Eslava