Hello Mr Hawk

Downloaded and installed your latest SCI above and the r2720 exe, renamed and replaced, all is well, now i have to spend a couple of days fine tuning my game. Very happy about it. I am playing an older version and want to see if and how visible the differences will be.
My question is about the r2720exe file. What is it needed for and what changes will be causing ? Please explain in a few words when you get a chance, i'll be grateful !