This patch disables message boxes when you're playing the ROM in ZSNES by making of them show a default message instead. Could be handy for people who want to slightly inconvenience ZSNES users but not outright keep them from playing.
The default message can be edited in Lunar Magic's Overworld editor as usual, all you have to specify in the patch is what number it is in the editor.
The default message could say something like
You seem to be
Play this in a
to unlock this
@DTA450 ZSNES isn't very accurate, which means there may be some differences to real console or more accurate emulators like bsnes. But, I'm actually using ZSNES because my PC is as fast as a potato and ZSNES is the only emulator that works on it without lags.