lightwave cannot load external plug-in file (fbxlw.p)

Trying Lightwave (30 day trial) but can't get the fbx plugin to work. Downloaded plugins from and followed instructions. Lightwave version is 9 (Trial) - tried both the 8.2-9 plugin and when that did not work also tried the 8.0 plugin. Add plugin command in lightwave says "cannot load external plug-in file" .

I also cannot load both unity (windows versions) of the fbx plugin (fbxlw.p) into Lightwave 9.6.1