The idiotic DAZ "Millenium" installer strikes again, I see.
I wonder just how many threads there have to be on this subject before DAZ asks themselves just what they were thinking when they decided on that and change it? 1,000? 10,000? 50,000?

What makes it even stranger is that there is no good reason whatsoever for them to do it that way. None of those DAZ figures "need" to be anywhere near Poser.exe in order to work. You could have them in a runtime on a drive on a network computer halfway across the globe and they'll still work just fine. Might take a while to load though. ;-)

I have all my DAZ stuff on separate physical disk, for all intents and purposes about as isolated from Poser.exe as can be and it all works just fine.

I have nothing to add to the instructions on how to install V4 (or M4 and probably Aiko 4 too), as it's already been explained above, but my advice is once it's all updated  in a runtime somewhere, burn it to a CD and throw away those DAZ installers forever. You will never need them again once it's all successfully unpacked.
And "unpacked" is the correct word for it since their stupid installer is little more than a glorified Zip file.
Why don't they just use a Zip file, you ask?
I guess that's just not high tech enough.....

Plus, Zip files might cause confusion in the Poserverse, unlike the totally flawsless and confusion-proofed installer they created... :blink: