Since I had so many problems with the library in P8 I went and got XL---
I found that it did not identify my runtimes because the "add library' function in P8 did not work.
XL has no capability for adding or modfying runtime libraries
So I went and go a copy of P7's LibraryPrefs.xml  backed it up and  replaced the P8 LibraryPrefs.xml with it..
Presto-----It worked !!!  I really like this program (XL)
The person is a 'genius' three cheers for Dimension3D...
 The runtime repair program is great too!!! Worth every penny!!!