Windows Vista build 5259

Windows Vista build 5259 is the first official build to include the Start orb (although it was also found in a few earlier builds from the vbl_ux_dev_checkin lab such as 5212 and 5223) as well as one of the last known builds compiled under the Pre-Beta 2 branch; the next build (5270) was compiled under the Beta 2 branch.

Windows Antispyware is now added, and the setup UI is revamped, including a new Aurora background as well as a new OOBE. There's now an option to change the Aero Glass color.