Resource forks?

I finally got some disks that boot created. First I needed to scrounge around for 800K 3.5" floppies. Then the Macintosh disk creator program failed to create bootable disks. People told me to use a program called DiskDup+ to create the disks. Fortunately, that worked.

Now I'm trying to get some additional software over to the IIGS, but its not what I expected. If I copy files from a PC to the Macintosh to the Apple IIGS, they don't work. What I've found out is that the Macintosh is magically adding a resource fork to the file. As far as the IIGS is concerned, the file is corrupted.

Back to the drawing board...