I have a certain feeling that you will not like what I write now... :-) I just took one of my Mac .cr2 files from my Mac disk, opened it, and hacked in a bogus PC pathname to a non-existing texture - I think a Mac file treated this way qualifies as "alien file shipped from outside". Then I copied it to the PC partition into the Poser folder and started PC Poser. When I opened it, it asked for the bogus name, I pointed it to some very other file and... IT WORKED !!!