They enable the automation of processes you usually have to do yourself.
Here are some below, these are actually VERY simple and don't touch on what people can do, with batch files.
Just run each batch file after extracting...
Also there is one for sending a message over a Domain, i am not sure it works with Workgroups.
To edit them just open them in notepad

The one called Post links to the x64 forums

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One for example you could do in notepad below, remember after to click 'File, Save as...Name it something and add the .bat extension yourself' (naturally replacing the .txt extension)
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@echo off
pause
Start Control.exe