If you move everything you want to keep into a new runtime with PoserFileOrganizer then you can delete everything it leaves behind in the original runtime, it moves only files that are referenced. I am not a shill for this product, I actually don't like the author, but it is an invaluable tool. You could set up new runtimes such as V3 or V3 Clothing etc and use PFO to move the files into those by just dragging and dropping on the library folder from Windows Explorer on to the PFO application window, with version two you can drag and drop items to be added to a list for processing. Then you could return the geometries and textures to the main runtime after emptying the unused left overs out of it or see if they work well in the runtimes to which they were moved. I think the answer would be to set file style to absolute path and leave the geometries and textures in the external runtimes. PFO can correct references switch .rsr->.png and compress/de-compress as it goes. I wonder if instead of absolute paths "shotcut" files could be put in the main runtime... I have been meaning to try this... has anyone tried shortcuts in the runtime folders?