Windows XP build 2474 (main)

Windows XP build 2474 is a pre-RC1 build of Windows XP.

Changes

 * Many Whistler references were replaced with Windows XP.
 * Added an animated Windows flag on the login screen, which would later be removed in build 2481.
 * Setup now identifies itself as "Windows XP RC1".
 * A new boot screen was added to replace the Whistler version in use since build 2428.
 * The safe to shutdown screen was updated to now include Windows XP-style branding. It replaces the version that was previously in use since build 2257.
 * Added five new sample pictures that aren't present in previous builds.
 * Updated the throbber that is used in Windows Explorer and Internet Explorer to the Windows XP logo, replacing the one in use since Windows 98.
 * This is one of the first builds to use the modern Windows XP Logo Testing implementation, this can easily be seen when upgrading to this build as almost all hardware will result in the warning that such hardware may not work and cause instability.