John, here's the relevant part I referred to in my last message: p. 262,
The AmigaDOS Manual, 3rd Ed. (C-A/Bantam):
file = Open( name, accessMode )
..
"The 'name' can be a filename (optionally prefaced by a device
name), a simple device such as NIL:, a window specification such as CON: or
RAW: followed by window parameters, or *, representing the current window.
Note that as of V36, * is obsolete, and CONSOLE: should be used instead.
If the file cannot be opened for any reason, …."
Also see replies to your original message (the one noone replied to
for a while). –Tom