[fa.info-mac] copy/delete protection on the Mac?

info-mac@uw-beaver (12/21/84)

From: <ubc-vision!alberta!sask!derek@uw-beaver.arpa>

What are the different ways to protect a file?  The finder allows you to
lock it, SetFile also will set this bit.  There seems to be another way
to protect a file from deletion.  You can move it into the trash, but
something moves it back to the desktop if you try to eject the disk.  
If you Empty Trash, the item remains there and is not deleted!

What about copy protection?  How do I protect a file from being copied or
duplicated?  I assume that there is an attempt to not allow copy protected
files from being unprotected.
Derek Andrew, ACS, U of Saskatchewan, Saskatoon Saskatchewan, Canada, S7N 0W0
{ihnp4 | utah-cs | utcsrgv | alberta}!sask!derek  306-966-4820  0900-1630 CST
	"I ain't afraid o' no bugs." - Bugbusters