If you have a Runtime folder somewhere in your Daz Studio installation, you should be able to add that as an external runtime.

Some products may need to be reinstalled (V4/M4 for instance will most likely require it)

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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.