I really hate that changes to the V4 figure force it into the Poser core runtime.  It's rather backward to have a system that requires this.  Solve one problem (multiple morph packs) to create another.

No it doesn't. You can trick the installer by placing a text file named "Poser.exe" into the directory you want to install it in. She works fine. I've had V4.0+ working this way. Never crashes.