The Director^® installation program places two Distort Effect files and this online help file in your Director Xtras folder:

Windows	Purpose
wded2opt.x32 wdedis.x32	These files support creating distort effects while authoring movies in Director. Since wdedisOpt.x32 is not licensed for redistribution, do not distribute this file.
wdedis.x32	Distribute this file with Shockwave™ movies that use distort effects and include it in projectors that incorporate distort effects.