Place the following in a batch file:

rem @echo off

> Settings.dat echo [GEN]
>> Settings.dat echo Firstuse=True


rem pause

The first rem, will turn the response on and off to hide the response, take the rem away.
The second will simply pause it, take away the rem to pause the code.

This will replace the file Settings.dat with whatever you place after the echo part, to keep adding stuff to the file, add the line >> Settings.dat echo to the file and what you want to appear in the text document after the echo like above.

Simply create a new batch file on your desktop and place that in it and run it, so you can see how it works, any more qs, just ask.