During WinHEC 2004 Microsoft included WSR as part of a strategy to improve productivity on mobile PCs. Microsoft later emphasized accessibility, new mobility scenarios, support for additional languages, and improvements to the speech user experience at WinHEC 2005. Unlike the speech support included in Windows XP, which was integrated with the Tablet PC Input Panel and required switching between separate Commanding and Dictation modes, Windows Vista would introduce a dedicated interface for speech input on the desktop and would unify the separate speech modes; users previously could not speak a command after dictating or vice versa without first switching between these two modes. Windows Vista Beta 1 included integrated speech recognition. To incentivize company employees to analyze WSR for software glitches and to provide feedback, Microsoft offered an opportunity for its testers to win a Premium model of the Xbox 360.