The injection thing is a real pain in P5.....as are a number of things :) It definitely has to be in the primary runtime to be useable, unlike other things that you can move pretty much anywhere you want them. So far only V3 and the DNA Microcsm use the injection scheme.....hopefully there won't be much more use of it until DAZ Studio comes out :) V3's injections are way too slow in the silly bugger (P5), even when located in the primary runtime. Since I don't have P4, I don't use V3 much at all.