}} (see Q: What's up with the name Longhorn?)</ref> There were several beta and pre-beta builds or Whistler released to testers from February 2000 to the time Windows XP was officially released to the general public in October, 2001. Windows XP is programmed in the C, C++, and assembly programming languages.<ref>{{cite web|url=http://www.microsoft.com/technet/archive/winntas/training/ntarchitectoview/ntarc_2.mspx |title=Microsoft Windows System Overview |publisher=Microsoft.com |accessdate=August 26, 2010}}</ref> | }} (see Q: What's up with the name Longhorn?)</ref> There were several beta and pre-beta builds or Whistler released to testers from February 2000 to the time Windows XP was officially released to the general public in October, 2001. Windows XP is programmed in the C, C++, and assembly programming languages.<ref>{{cite web|url=http://www.microsoft.com/technet/archive/winntas/training/ntarchitectoview/ntarc_2.mspx |title=Microsoft Windows System Overview |publisher=Microsoft.com |accessdate=August 26, 2010}}</ref> |