I'm not sure what you mean by encode the zip file, I thought RTeJava worked with the .obj files??? I agree, there is now no source file differences between Poser OS X and Windows. I would suggest that if you're using RTE make a few things very clear. 1. That an additional Software download is required to decode the files. 2. Where to get that Software from, an http:// 3. Where to find those required OBJ files and how to extract them if they're obz's. 4. Where to place the completed files. The first time I encounter RTE it took me weeks to sort out, especially as the content provider just didn't know or care, because I was using a Mac.