I also have Windows XP. Here is a screen shot of Winzip version 8.0 . Start by going to File/Open and select a ZIP file. Next go to Actions/Extract and in the popup window select "Use folder names". All my Poser ZIP's should be extracted to the folder that contains the Poser.exe file. This is normally C:Program FilesCurious LabsPoser 4 (or 5). You'll find that most folks use this convention. If you find one that differs from this then just extract it to a temporary folder, still keeping the folder names. Now copy just the Runtime folder into your existing Poser folder.