Here is what the DoxBox config file looks like for me.
[sdl]
fullscreen=true
fulldouble=false
fullfixed=false
fullresolution=1024x768
output=surface
hwscale=1.00
autolock=true
sensitivity=100
waitonerror=true
priority=higher,normal
mapperfile=mapper.txt
[dosbox]
language=
machine=vga
captures=capture
memsize=64
[render]
frameskip=0
aspect=false
scaler=normal2x
[cpu]
core=normal
cycles=6500
cycleup=500
cycledown=500
[mixer]
nosound=false
rate=22050
blocksize=2048
prebuffer=10
[midi]
mpu401=true
intelligent=true
device=default
config=
[sblaster]
type=sb16
base=220
irq=7
dma=1
hdma=5
mixer=true
oplmode=auto
oplrate=22050
[gus]
gus=true
rate=22050
base=240
irq1=5
irq2=5
dma1=3
dma2=3
ultradir=C:\ULTRASND
[speaker]
pcspeaker=true
pcrate=22050
tandyrate=22050
disney=true
[dos]
xms=true
ems=true
[modem]
modem=false
comport=2
listenport=23
[directserial]
directserial=false
comport=1
realport=COM1
defaultbps=1200
parity=N
bytesize=8
stopbit=1
[ipx]
ipx=false
[autoexec]
loadfix
mount D E:\ -t cdrom
mount C C:\
D:
wc2