Do you really need to use with dos thing? What's your real goal?

If you just want to monitor ports in win2k, then have you looked at
sysinternals PORTMON?

Http://www.systinternals.com.

Very good piece of kit. Free too.

jon

> -----Original Message-----
> From: dan.lloyd@GB.ABB.COM [mailto:dan.lloyd@GB.ABB.COM]
> Sent: 23 September 2003 14:29
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [OT]: Dos 'OldApps' hogging serial ports..workaround?
>
>
> Hi,
>
> I am currently trying to use an old serial comms analyser
> (commwatch) to observe serial traffic via a Win2K,
> four-serial port PC.
>
> However, good old DOS apps just love to steal all available
> communications ports (via the DOS VM) meaning that the two
> remaining ports can never be opened by other applications
> once comwatch is alive and kicking.
>
> I've tried a couple of solutions to this in terms of isolating the DOS
> ports:
>
> 1. Using Virtual PC running DOS with the ports mapped through
> to the host machine serial ports.
> Result: Works fine...but Virtual PC freezes every few
> hours..no good for soak tests.
>
> 2. Using VMWare as above.
> Result: VMware must be less efficient than Virtual PC as
> characters are lost unless the VM is running full screen (and
> even then it is not too reliable).
>
> I've  looked at the dosbox emulator but cannot see anything
> suggesting that it can use the serial ports (although it
> should do if it can emulate old multiplayer DOS games)....
>
> Anyone else managed to come up with a storming solution for
> this problem? (Apart from using Linux/dual booting etc)
>
> Regards,
> Dan
>
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