Blender is not necessary, see the notes in the installation instructions.

Regarding the loading of the DLL, have you checked that everything is in the right location. Have you tried to launch the Reality.exe program? If so does it run?

If it does then it can be that you have a problem with your Python installation. Have you installed any other version of Python which might interfere with the one shipped with Poser?

All the best.

Paolo

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