Hi,. Do you get any error message when you are trying to install CST Studio Suite 2011 on the computer?. Are you able to install other programs on the computer? If the program is not compatible with Windows 8, I suggest you to install the program in compatible mode and check if it helps. You can follow the link given below to install the program in compatibility mode.
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What is program compatibility? Make older programs compatible with this version of Windows You can also contact the CST support if the issue persists. Hope this helps. Please post back if the issue persist and we will be glad to assist you further.