Guys thanks for the input ... but iMac600, where is your documentation to make the assertion "of course it's true"? And Kallikak with all due respect, just swapping out system and finders, etc. isn't going to prove anything. Unless we know how exactly the Guided Tour works and interacts with the System and Finder, there's no way to just swap some files to asses the compatibility with System 1.0. Certainly Apple would not have thrown up their hands with such a minor effort (but it's certainly worth a try sometime).

Also, iMac600, I participated in that thread about System .85. I found your experiment fascinating and posted the link to the PDF insert from the original User's Guide that instructs to ignore the "Alternate Disk" as that manual is based entirely around a variant of System .85. But in addition to copy protecting the Guided Tour disk, I am almost certain Apple further crippled the System beyond what was necessary to run the Tour. Apple did not want that System out there. So constructing a stand alone system out of that disk doesn't really prove anything either.

My point here is where are the documented references that confirm the Guided Tour disk used System .85 because it was found to be incompatible with the final release System .97 at the 11th hour? Scott, I really look forward to hearing what you turn up when you have a chance. Thanks!