Like Mimic, the problem may be with the program's security system. I posted this earlier, haven't done any further experiments: "Knew the protection scheme would probably doom the attempt, but I tried to install my P5 on VirtualPC98. The autorun wouldn't. Got farther when I copied the startup .exe into the shared folder, but it failed part way through the installation. Might be that there wasn't enough space available on its virtual disk, I'll try again sometime. Am curious if it will generate a challenge code." Meanwhile, stuck learning P5 on my (blaach) PC and waiting for the (improved) Mac version to begin doing real work in P5.