Product Key Viewer is a simple, award-winning software application that enables users to effortlessly view, change and alter their Microsoft® Windows / Microsoft® Office Product (CD) Keys. With a neat, easy-to-use interface, Product Key Viewer works instantly from a click of the mouse. Not only can 'Product Key Viewer' display CD Keys and enable users to alter information, but 'Product Key Viewer' also enables users to view the Version and Product identification number of their respective Microsoft® product/s. Unlike other product key changers, 'Product Key Viewer' alterations take effect immediately, meaning that there is no need for a time-consuming PC re-start. In addition, the full version of 'Product Key Viewer' has no limitations, no expiry date, and can therefore be used as frequently as desired. Any future updates are also provided to the user fully free of charge for the lifespan of the product.