I've just installed dosbox in my PC. I need to use an old program that controls a meassurement apparatus via com port.

I installed the program in a dosbox session, without much problem. I connected the aparatus to com1 in my computer, and there is no error (with winXP DOS emulator it was inpossible). But when "talking" with the apparatus, there are errors:

DOSBox version 0.72
Copyright 2002-2007 DOSBox Team, published under GNU GPL.
---
CONFIG:Loading primary settings from config file C:\Archivos de programa\
0.72\dosbox.conf
MIDI:Opened device:win32
Serial1: Opening com1
SHELL:Redirect output to nul
SHELL:Redirect output to nul
SHELL:Redirect output to nul
Serial1: Errors occured: Framing 0, Parity 0, Overrun 1 (IF0:1), Break 2
Serial1: Errors occured: Framing 0, Parity 0, Overrun 31 (IF0:0), Break 0
Serial1: Errors occured: Framing 0, Parity 0, Overrun 2 (IF0:0), Break 0
Serial1: Errors occured: Framing 0, Parity 0, Overrun 35 (IF0:0), Break 0
Serial1: Errors occured: Framing 0, Parity 0, Overrun 2 (IF0:0), Break 0
Serial1: Errors occured: Framing 2, Parity 0, Overrun 18 (IF0:0), Break 2

On my old PC I used the following line in the .bat file:

mode com1:96,n,8,2 >nul

On DOSBOX.CONF file I used:

serial1=directserial realport:com1 startbps:9600 parity:n bytesize:8 stopbits:2 irq:4

Could anyone help me?