Windows 8 build 7973 (fbl srv wdacxml)

Windows 8 build 7973 (winmain) is an unleaked Milestone 3 build of Windows 8. Only two desktop screenshots and a part of the about dialog of this build were showcased. However, the about dialog screenshot is confirmed to be fake because it has the same hash ID as 7973.fbl_core1_kernel_npc.110330-1809.