If you're making only props and you want to give them away as freebies, all you need is actually  1, 2, 3, 8, 9 and..er..9.

non-embedded geometry is preferable but Poser embeds the geometry when you save something as a prop and you have to even be good at knowing which bits to remove from the pp2 - or use some external software.

Since I haven't got the foggiest idea of what to "extract" I personally rely on a program called PWizard. Not sure if it's still available, but in any case, Dimension3D's PoserFileEditor can do it, too. And it's a great great tool (hope this doesn't give me any problems with the new "no commercials" policy?) for many other things. May seem a little overwhelming at first, but just don't be intimidated and try it out slowly ^_^

Good luck. I'm using Hexagon myself for most of my models these days, and it's such a great program for making Poser stuff!
 

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.