How to stop System Notification sound in Windows 10 from being played when trying to delete an item?

[The Electro Machine]

I do not want to turn off al system sounds in my system - I just want only XnView MP to stop uselessly attacking me with this particular [i.e. System Notification] sound every time I press DELETE key when going through my photos and deciding I want to remove one. The pop-up with confirmation question is enough of a warning for me. That sound being played that often [when performing a task of narrowing down a set of files] is just plain annoying

[xnview]

i'll ask the Qt Team

[phaolo]

Oh, this was bugging me too.
Explorer doesn't do it, so why should Xnview?

[fireattack]

Can we add an option to disable this? I'm annoyed by this lately too.

I don't even remember XnView did this before, but I guess I may mis-remember.