For quick answers to general usability questions, we recommend your visit our friendly Trainz forums,
To submit a Support Ticket, click on the Troubleshooter Button, then follow the steps through to the appropriate Category. Login using your Simulator Central or MyTrainz Username and Password.
Note: Support tickets are generally answered in 1-3 days. Your patience is appreciated.
Cannot install Trainz 12
Posted by N3V Games (Paul) on 10 August 2015 12:02 PM
Some browsers may strip the .exe file type resulting in nothing happening when you try to run the setup file.
You can add .exe to the end of the Setup file name as follows:
"Disk Not Found" error - If you are installing the digital version and you get this error, it indicates all of the installation files are not in the same folder or that they are named incorrectly.
For example: setup(2)-1a.bin is the incorrect file name. The (2) is added if you redownload the same files multiple times.
Also check this link for more installation information and pictures.