We have now completed the 2 year project to convert all UIs to .NET technology. Qt library is removed from the product, including ICU library and OpenSSL. This changed also the UI paradigm: with old UI, it was always running in memory, consuming memory and a bit of CPU even if user did not want to view the UI. It also needed to be loaded into memory after restart, affecting computer performance in restart. The new .NET based UI works so that UI is loaded into memory only when user opens it, resulting in less resource usage when app is protecting in the background.