It's .inf file. Not .exe. You just follow the following steps and when you select the folder "POS80 Win8 64bit Driver", .inf file will come out automatically. You don't need to select this file by yourself. Just click "Confirm".

 
Steps: Go to "Device and Printer", click "Add Printer", then "Add Local Printer", Click "Next", select " Install from CD", then select the file of "POS80 Win8 64bit Driver", open it and follow the steps.

If can't install, please adjust your computer date to 10 jul 2014 and try to install again. Thanks.
