If it can't be done by SM in-house, hire someone who knows what they're doing to put together a collection of up to date shaders and .mt5 files, sensibly categorized as 'metals', 'glasses', 'liquids', 'stone' etc. Make these much easier to find than the crappy old legacy shaders. Then get an intern / child / trained monkey to go through the standard characters and props and apply those shaders where and as appropriate.

Ditch all those horrible old light sets which are completely useless now that we have IBL, IDL and GC. In fact, it's time to rationalize all the legacy stuff: either adapt it for modern versions of Poser or let it go.

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Windows 10 x64 Pro - Intel Xeon E5450 @ 3.00GHz (x2)

PoserPro 11 - Units: Metres

Adobe CC 2017