I thought I'd never heard of Superfetch, but apparently I had, as I've already disabled it at some point.  Hmm.  I'm looking over howtogeek.com to see if there are any other Vista tweaks I could try.

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.