This license key registered fine for me. WINDOWS USERS – SharewareOnSale exclusive license key: QD8ZX-FLY6Z-IMPT5-KHM4Z-TWE9C
Just copy it, then hit activation and paste QD8ZX-FLY6Z-IMPT5-KHM4Z-TWE9C
The Windowskey worked fine for me. I think you have a space before or after the license key.