Windows Vista build 5209

Windows Vista build 5209 is a pre-Beta 2 build of Windows Vista. It was presented by Steve Ball in the Channel9 video, Learning about Audio in Windows Vista, which demonstrated the new audio features in the operating system, this build was compiled after build 5112, but it still has the Longhorn build tag

Video Notes

 * 1:37 Audio stack mentioned
 * 2:12 Some mention of 'interesting things could be found at the keynote' (PDC 2005)
 * 2:25 to 3:02 the Neptune project is mentioned.
 * 4:10 Discussion about UI.
 * Desktop volume control comparing this system in Windows XP (first seen 4:23) and Vista