Hi Guys, Ive been trying to install RTC2, I had the same problem with the white box, and then the black window. After some playing about, I found a solution which worked for me:
1.Download this wrapper http://portingteam.com/files/file/7314-roller-coaster-tycoon-2/
2.Open the "Crack" folder
3.Drag the "rct2.exe" file into the "drive_c/Program Files/Infogrames/RollerCoaster Tycoon 2/"
4.Click 'Replace' when the box comes up asking if you want to overwrite the file
I hope this works for everyone else!!