The file you are trying to open, [PRIMARY] SBOC_SETUP_FW-2.exe, is a Windows executable file (.exe is windows), not a Mac installer file. Furthermore, the file name is not the Flash Player installer file name. When you click on 'Download Flash...' button it should launch a browser window to get.adobe.com/flashplayer (possibly get2 or get3 instead of get). The Flash Player Download page auto-detects the OS and browser in use and offers the appropriate Flash Player installer file based on this. Please check your downloads directory for a file that contains Flash Player in the file name. That will be the installer file to use, not the one you are attempting to use.