Quote - They have to be installed there, but you can make a copy of the files installed and put them into your external runtime. That's what I've done.  The only time I access the main poser runtime is for materials which I keep in one place, primatives and Python scripts. 

I don't understand: do you mean you're not actually using the V4 in your Poser runtime, but the copy in your external runtime? If not, I don't see the point of taking up even more space with copies.