I am running Windows 8 on a boot camped Macbook Pro, I can download Solid Edge ST5 but whenever I go to install it I get the error message "This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer package" can anyone offer a solution?
Ken is right in that ST5 does not support Windows 8, but from the readme you will find that it can be installed and that it is running under Windows 8 with only a few exceptions. Siemens just does not support any problems of ST5 under Windows 8. But your problem, does not seem to be that. It seems that your package is broken and you might try to download it again with a download manager.