Damn, I entirely forgot about this...
OS: Win Vista Home Premium SP2
DosBox: 0.74
Changes from 0.74 original config file (section with modified lines):
[cpu]
cycleup=500
cycledown=500
[autoexec]
echo off
# Prepare PATH variable to access certain applications
PATH %PATH%;C:\DOS\XCOPY
# Mount the main hard drive
mount c d:\dos\c
c:
echo on
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