When you navigate to where that folder/file should be, do you see a heading in the toolbar called *compatibility files*?  If so, double click that icon.  In Vista, many things which are saved by a program get put into this category;  I think it's a feature of Vista's User Account Control.

  For example, if I'm working in Poser and get materials applied to an imported obj and then save it as a prop, Vista doesn't put it into Poser's props folder, but rather into a compatibility files folder which is associated with the Poser props folder.  You can move things from compatibility files into the regular folder manually.

     It's no longer an issue for me, as I've moved my Poser Pro downloads/runtime out to the Poser 8 downloads folder in the shared files, where Vista doesn't challenge me every time I add/delete something.  Poser Pro and Poser 8 now both use this library.

P.S.  I'd not know how compatibility files was translated into Danish, but hopefully the icon will match.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5