Here is the top level of my "Angels and Faeries" runtime.

The "Runtime" folder you see contains the standard geometries, textures and libraries folders.

The "3D Object" folder you see are for files that I find that are in .3ds or .obj format and that I can still use inside Poser, but have to import them instead of accessing them through my poser library inside Poser itself.  Eventually  I convert the .3ds and .obj files to .pp2 ones and save them to my "Props" runtime folder.

The poser.exe files that you see are simply a new text document renamed to be "poser.exe". That gives Poser something to look for in the event I want Poser to search out the runtimes for installation, which I no longer do, but old habits die hard and I like having that fake Poser.exe file in there, hehe

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi