My DSON for Poser install is working fine otherwise by the way, for all the supplied starter content.

I've also converted the Genesis versions of Adam Thwaites' Aine, Shanti and Rosalea characters to use in Poser with no problems... just saving them from DS4.5 as "Character Preset" .duf files and setting up the .cr2 and .py files as above with textedit.

I gather people have employed this workaround of attaching the DS4 "My Library" (or whatever their DAZ content folder set up is) as an external runtime, in Poser?

I've not yet tried doing this certainly.

But really I'd rather know which data / support files I need to copy into my Poser Genesis runtime's enclosing folder, if it is this that is my problem... and I'm not just using the wrong "save as" process or I need a newer DS4.5 build.