Windows XP build 2200

Windows XP build 2200 is a unleaked build of Windows XP. It was mentioned in Paul Thurrott's article "More Blackcomb/Whistler info surfaces". It was stated that ZDNet reported this build was released "last week". It is also mentioned in "Report: Whistler to ship in March 2001; Blackcomb in 2002", where it is stated that contrary to popular belief, it is not the earliest internal Whistler build. ZDNet author Mary Foley reported this build was released around the week of 10 February 2000 if not earlier.

It is also referenced in the file  in the Windows XP Service Pack 1 source code: