Right, i managed to figure it out, lol, but why is delta-patcher necessary? is a copy of the modded files inside a .zip folder not good enough?
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I would be redistributing source if I did that. Since patch files only contain the differences between the source and mod files and are useless without the source files, it allows me to distribute the mod without giving out someone else's code. This is one of the main reasons many mods for games opt for patches.