mIRC 7.17
Windows XP SP3

Set a Lock Password for mIRC - Hold CTRL while minimizing - when trying to maximize it, it asks for the password. Enter the password and bring back mIRC.

Load the Script Editor then CTRL minimize mIRC ( not the Script Editor ) - You cannot access the Script editor without the password.

Now, this is the bug, Tools -> Options -> Script Editor -> Options -> [CHECK] Show on Desktop -> Click Ok -> Restart the Script Editor -> CTRL minimize mIRC ( not the Script Editor ) the Script Editor is still open.

I believe the Script Editor should not be available under when mIRC itself was CTRL minimized.