The Tablet PC version released in August 2004 (codenamed Lonestar) as part of Windows XP Service Pack 2. The 2005 edition is available as a service pack upgrade, or as a new OEM version.
Service Pack 2 for Windows XP includes Tablet PC Edition 2005 and is a free upgrade. This version brought improved handwriting recognition and improved the Input Panel, allowing it to be used in almost every application. The Input Panel was also revised to extend speech recognition services (input and correction) to other applications.
