on the other hand, was a commercial consumers utility marketed with a software as a service licensing model. Windows Live Butterfly The Windows Live Butterfly awards program (formerly the MSN Butterfly program) was a program whose members were given the benefit of new Microsoft software to test before the beta releases went public and they were in direct contact with the program managers for Windows Live products. Microsoft had initiated the Windows Live Butterfly program in order to recognize the contributions made by exemplary beta testers. Prospective 'butterflies' were selected by the Windows Live product team and were nominated for a term of one year, after which they could be renominated. The Windows Live Butterfly program was closed in June 2009. User interface All Windows Live websites sport a common theme. Different themes have been used on the sites with each phase of product release, called "Waves". Each Wave has a set of online services and desktop programs (Windows Essentials). The web services are labelled by each Wave, for example, Hotmail Wave 4. The programs from Windows Essentials are usually called by a year number, for example, Windows Live Messenger 2011. Blue Vapor/Flair/Wave 1 Most original Windows Live applications and services used a visual theme known as Blue Vapor or Flair. Wave 2 With the public beta release of the Windows Live Wave 2 Suite, a new visual theme was released to enable the Aero transparency effect in Windows Vista. Wave 3 Microsoft released a set of new themes for their Windows Live Wave 3 services, which allows users to customize their pages on Windows Live using a set of pre-selected background pictures. Several of these themes are dynamic and change according to the time of day and the current weather condition of the user. Wave 4 In addition to the themes provided in Windows Live Wave 3, the release of Windows Live Wave 4 provided additional themes for users to customise their pages on Windows Live, with several dynamic themes that changes according to the time of day and weather conditions at the user's location. Several of these newly added themes are similar to wallpapers originating from Windows 7. In addition, the Windows Live Wave 4 header features a reorganised dynamic navigation menu that displays the number of the user's current online contacts and the number of unread e-mails, as well as an in-built Windows Live Web Messenger service