Monkey Island 2 - copy protection

[Telev]

Hello,

I know copy protection is turned off on this games. But, I would like to activate it. I tried with the "copy-protection" parameter, but it doesn't work, Scummvm keeps overriding. I have tried with the DOS version as well as with the Amiga version.
Is normal ? Is there a way to enable copy protection for this game?

Thank you for your answers

[LogicDeLuxe]

The query should appear in ScummVM in any case, but the correct input is only checked if copy protection is enabled. If it doesn't appear at all, it is a version of the game which doesn't have it.
The Amiga Kixx version has the script removed, thus it's not available.
In case of the Ultimate Talkie, you would also need to apply 1 as a boot parameter to force it to appear, which can be done on the command line: scummvm -b 1 --copy-protection monkey2

[Telev]

Today, my DOS version with the switch --copy-protection are working ... don't know why
And I found my other error in my scummvm.ini.... the parameter copy_protection is with an _ ... not a -