We previously mentioned that Microsoft locked some of the features in the Windows 7 build that they handed out to attendees of the Professional Developers Conference in Los Angeles. The reason why that was done has not (obviously) been revealed by Microsoft. Possibilities range from locking incomplete features from over-observant reviewers to releasing news about those new features at a later time. That surely backfired with the workaround to unlock the features in the Windows 7 M3 6801 build.
The newest feature is a desktop wallpaper changer which can be used to rotate wallpapers in Windows 7 in a user defined interval ranging from 10 seconds to 1 day. It is furthermore possible to shuffle the wallpapers which would have the effect that they are randomly chosen and to disable the feature when the computer is running in battery mode. Microsoft did – interestingly enough – add an option to use wallpapers of feeds that point to images. According to Long Zheng that feature was not completely working at the time of discovery which strengthens the argument that the features were locked because of being incomplete at the time of compilation.





