Unzip in the Runtime folder. Most will automatically sort themselves into the correct folder from there. An alternate method is to create a folder specifically for unzipping files. This will keep your Poser4's Runtime free of clutter from the few freebies that are not self-directing. Otherwise here's a quick key: .cm2 = Runtime/Libraries/Camera/ (any folder) .cr2 = Runtime/Libraries/Characters/ (any folder) .fc2 = Runtime/Libraries/Face/ (any folder) .hr2 = Runtime/Libraries/Hair/ (any folder) .hd2 = Runtime/Libraries/Hand/ (any folder) .lt2 = Runtime/Libraries/Light/ (any folder) .pz2 = Runtime/Libraries/Pose/ (any folder) .pp2 = Runtime/Libraries/Props/ (any folder) .pz3 = any file... these files are not directory specific .obj = Runtime/Geometries (If an object is a prop, the file is not specific. HOWEVER, if a character comes with an object, put the object in a folder specified by the .cr2 file, which may be opened using Window's Notepad) Hope this helps. There are many excellent tutorials out there as well. Do a little searching around this site, as well sites found in the links.