To those people who want to download and enjoy other peoples' hard work, yet ungratefully expect answers without the effort of reading up:
Stop critiquing the absence of this feature like you are reviewers or something.
Nes has already explained this situation:
This is a port (code translation) of the PC emulator, Zsnes.
Zsnes does not support lightguns, so there is nothing to port over.
Nes would have to design lightgun code FROM SCRATCH and BUILD it into the emulator.
If nes even tries this, it's a monumental effort, which may not even be a reality.
That should be respected, and the absence of this feature should not be ungratefully critiqued, begged for, or greedily hinted towards.
("The only thing that would make it better would be lightg...", "I'm almost convinced this is the best, if only it had lightg..." etc. That shit is RUDE, unappreciative of the author's work and stepping out of line.)
Nes is doing his best and if this ends up feasible it will come.
If not, suck it up.
Enjoy lightguns in xSnes9x.
Appreciate superiour features, graphics, sound and speed in Zsnexbox.