Windows XP/5.1.2250.main.000628-2110

Windows XP build 2250 is the first Windows Whistler build to have the Watercolor theme (called "Professional"). It also is the first build to have the new start menu, however, it's disabled by default. Internet Explorer 5.6 is included in this build.

BetaArchive forum

 * Whistler 2250 Startpage
 * Whistler Build 2250 and the "Activity Center"