OpenRCT2 doesn't work with demo

[InsertProblemHere]

I tried using the demo version (Gonna buy the game on steam when I get the chance), and whenever I try to click on the Data, or the folder the game is in, it doesn't work, it just exits the OpenRCT2 launcher.

[RuneLaenen]

Just choose the RCT2Demo folder instead of the Data folder.