I really cant give any advice, whats makes it run with xp and fat 32 and what not. But as i said in "poserForum" in my opinion its also very useful if you can only use it while poser is not running. There are so many things in the libraries you very rarely use but you dont want to delete. with pboost one can make them invisible in another bank or export and import them to different places and getting them very simple back if one really uses them. My folders are much smaller and easier to handle since i did the big clean up.