Code:
:TOP
copy C:\StealthBot1\log.txt C:\StealthBot2\ /Y
@ping 127.0.0.1 -n 5 -w 1000 > nul
GOTO TOP
Create a new text file and copy the code I gave you into it. Change the two file paths to wherever the logs are kept. Then rename the file but give it the extension "bat", for example stealth.bat
Then simply run the batch file before playing DotA. It copies the log every 5 seconds, that's what the ping delay is as the SLEEP command doesn't work in XP and Vista. Don't worry you're just pinging yourself so no bandwidth used.
To exit it press Ctrl+C.
Where do you play DotA?