Okay, thanks for clearing that up, EF. I'm at work right now, so I can't get the patch... but I'm guessing they included the complete source files again? As I recall, what I did last time was to use 3.17 as a base (i.e, the new sources, this time I will start with 3.19 obviously), applied the first available BetterAI that's compatible, and then I proceeded to add all the dll-comp's again. I guess there's not really any other way. Sigh.