The file nwn.ini is a configuration file for Neverwinter Nights, found in the NWN directory.
Some useful settings you might want to add:
[Display Options] FullScreen=0 AllowWindowedMode=1
This allows one to use window mode.
[Display Options] Disable Movies=1
This allows one to skip all the movies.
[Display Options] Disable Intro Movies=1
This allows one to skip just the intro movies.
Note in all three cases, one just wants to add to the
section, as it should already exist.
[Video Options] Grass Far Render Distance=900.0
This sets how far into the distance grass should be rendered. Valid values range from 900.0 to 30000.0, with a default of 900.0. Increasing this value will cause more grass to be rendered in outdoor grassy areas, but will also reduce game performance in these areas. (Added in patch 1.69.)