Windows Vista build 5059 (vbl ux dev checkin)

Windows Vista build 5059 (vbl ux dev checkin) is a pre-Beta 1 build of Windows Vista. This build was demonstrated at WinHEC 2005 among other Longhorn builds, showing the new and improved desktop search and scalable icons. It looks very similar to build 5112 and is among one of the first builds to use the new black Aero theme. This build remains unleaked.