How to create/use a mod?

[bman654]

I made a mod to get rid of that annoying sound when you dig and don't find anything because I like to hit D alot while travelling. But I am editing the main .KFS files. I'm not sure how to package it up for other people.

From what I can tell from looking at some of the Russian mods, you put your modified files in a .kfs file in the data\mods folder. Is that all there is to it? Does it require starting a new game or will it work on existing savegames?