The link for Using INI for Loading All Body Textures leads to
https://manual.reallusion.com/Character-Creator-5/Content/ENU/5.0/09_Transformer/Baking_DAZ_Textures.htm
Which does not explain the ini anywhere on the page

I think this is the link you meant to use
https://manual.reallusion.com/Character-Creator-5/Content/ENU/5.0/09_Transformer/Using_INI_File_for_Loading_All_DAZ_Textures.htm