No idea how something that doesn't exist in Poser is going to be able to "phone home".

PowerLoader is a DS system that works with the Gen 4 figures and the SubDragon, it basically allows you to choose which morph channels sets to load with the figure, as well as INJect the morphs for those channels. Lets say you have V4 but you only want the ++ morphs and channels to load, you turn off A4, G4 etc in the PowerLoader window, tell it to pre-INJect the ++ morphs, and when Vicky loads into the scene those morphs and channels will be the only ones there.

It's meant to save on load times and RAM use, but tbh you use just as much RAM using it as you do without using it, as it has to load the entire CR2 first before it can delete the channels, you're also quicker just loading the CR2 and INJecting the morphs yourself than waiting on PowerLoader to finish.