ini files can be viewed and edited using a text editor like Windows Notepad, but I recommend backing them up before changing any settings. ini (initialization) files found under your \Documents and Settings\User\My Documents\BioWare\Mass Effect\Config directory in Windows XP, or \Users\\Documents\BioWare\Mass Effect\Config in Windows Vista. Mass Effect holds all of its main settings in a range of. In this section we look at how you can undertake such tweaking and examine all the major variables and commands necessary to do so.
Mass Effect is based on the Unreal Engine 3.0, which allows users to access a range of configuration variables and console commands to use for not only altering the way the game looks and performs, but also changing various gameplay parameters. Mass Effect Tweak Guide Advanced Tweaking
