Quote - There is a limit to backward compatibility.  Backward compatibility has held the Poser community back long enough.  I am tired of being limited to Poser 4. People who are too cheap to upgrade are too cheap to buy content and as such, they are irrelevent.

On the backward compatability discussion, I'll add that disabling your software with this results in everything being done - poorly. 

All this magical backward compatibility does is create expectations that are never met, leading to bad will with your customers.