Really not rocket science, but I was kinda confused about the patch part. Normal file is .xdelta or sth. like that, you have to change to 'All files' to select the .dat thingy.
Really looking forward to playing the game later, the weather is also great o/
you can rename toi.dat to toi.xdelta or you can use the command line one just run the xdelta.exe and read the whole instruction (I already forgot the cmd line) but the patch runs fine on me atleast on the first part