Compared to typical PC add-ons, WiNRADiO receivers have an unusually long life in the market, typically 5-7 years. Superseded products still continue to be serviced, and software upgrades are provided for as long as practicable after a product's discontinuation. Backward compatibility of new software add-ons and plug-ins, based on the XRS standard, ensures that many latest add-ons continue to be compatible with receivers introduced many years ago, thus maximizing our customers' initial investment in a WiNRADiO receiver.