FYI. Sage released product updates yesterday for 4.5, 2013, 2014 and 2015. In order to install the update you have to enter your new unlocking keys even if they are already entered. It does a validation against a payroll subscription expiration date and if your payroll subscription has expired it disables the payroll module. Funny how our reseller keys have an expired payroll subscription date so we can't install the product updates and still have access to the payroll module to do demos. I did test the keys on one of our client's who uses payroll and it does give a valid expiration date of 4/30/16.