Originally Posted by stoffe
Modifying the data file to prevent the quest from being triggered would be the preferred route if you want to deactivate a quest in the standard game. Modifying the KEY/BIF data is a sure way to make your mod extremely incompatible with all others since any files the player has in their override folder will override any changes you have made to the BIFF files, and most mod installers will assume the data in the BIFF data files is untampered with and not look at it for changes to make new mods installed compatible with.
Good point, thanks for the help. Consider this forum closed now everyone!