Hi Indy,
· Are you installing game online or from CD/DVD?
The error message “Component Transfer Error. Data Error (cyclic redundancy check)” means that the operating system cannot read or write the data correctly. This can happen if the CD/DVD has damaged information or the data downloaded is corrupt.
If you downloaded the expansion pack from Internet then, I would suggest you to download it again and check if the issue persists. If you have a CD/DVD of the expansion pack then, I would suggest you to clean the CD/DVD and then try again. If that also fails then, check if you can install the expansion pack from CD/DVD onto any other computer.
“Rooler Coaster” game is compatible Windows 7 whereas "Knights of Honor" you need to check that on the game manufacturer’s website.
Hope this helps.