No no, I write my AVIsynth script self. MeGUI did not bother that before when I specified relative paths. avs4x264 and x264 from komisar have work for this. All my AVISynth plugins and script libarys work not with the new x264 encoder, because this encoder can not tell what path it is unless it's a full path in the scripts. And this is to bad. It is probably not a mistake on the part of MeGUI, but a mistake in the selection of the encoder version. Because the new x264 encoder have a AVISynth support,...
relative path not working (x264/AVISynth)