7SeAs (I think that's right) already have a small install/uninstall utility in the marketplace - Poser Product Manager. It installs runtimes directly from zip files, records the contents in a directory and then uninstalls the files when you don't need them. As for DAZ installers, I install to a temporary directory and create a zip file - everything is then kept in themed, labeled CD ROMs - this is what makes using Poser possible for me with a 6Gb hard drive! The utility is small enough to have running whilst you work in Poser - but I would shut it down when you're ready to render. Off the top of my head, I believe it was about $15 - well spent!