I have been running Poser 4 on an old PowerMac 8600/300Mhz box. Nothing is changed in it.
I NEVER remove anything from the GEOMETRY folder. I have removed some of the textures of characters I no longer use but the Fer Codee tex stayed since I can still use it for Posette and many other 3d party characters and props etc that would have nothing to do with htis figure. The file I believe was encoded to find Posette in system and once found it allowed the files to be installed by hand and it worked fine for two or three test renders. When Ir eturned to set it up for the final render neither the PZ3 file nor the Cr2 files worked. It just stopped working.  :(