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Continue to ChatHelper class to handle In-App-Products (IAP) licenses on Windows Phone (SL) https://msicc.net/helper-class-to-handle-in-app-products-iap-licenses-on-windows-phone-sl/
Helper class to handle In-App-Products (IAP) licenses on Windows Phone (SL) https://msicc.net/helper-class-to-handle-in-app-products-iap-licenses-on-windows-phone-sl/