Windows Mobile 2003

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Windows Mobile 2003
Version of the Windows Mobile operating system
Source modelClosed source
Released to
June 23, 2003; 20 years ago (2003-06-23)
Preceded byPocket PC 2002
Succeeded byWindows Mobile 5.0
Support status
Mainstream support: Ended on July 14, 2009[1] Extended support: Ended on July 8, 2014[1]

Windows Mobile 2003, originally codenamed "Ozone",[2] was a member of the Windows Mobile family of mobile operating systems, released on June 23, 2003. It was the first Microsoft mobile OS to be called "Windows Mobile" and was based on Windows CE 4.20.


Windows Mobile 2003 came in four editions:

  • Windows Mobile 2003 for Pocket PC Premium Edition
  • Windows Mobile 2003 for Pocket PC Professional Edition: Used in Pocket PC budget models and lacked a number of features from the Premium Edition such as a client for L2TP/IPsec VPN.
  • Windows Mobile 2003 for Smartphones
  • Windows Mobile 2003 for Pocket PC Phone Edition: Designed especially for Pocket PCs which include phone functionality.


The communications interface was enhanced with Bluetooth device management which allowed for Bluetooth file transfer support, Bluetooth headset support and support for Bluetooth add-on keyboards.

A pictures application with viewing, cropping, e-mail, and beaming support was added.

Multimedia improvements included MIDI file support as ringtones in Phone Edition and Windows Media Player 9.0 with streaming optimization.

A puzzle game titled Jawbreaker was among the pre-installed programs. Games API was included with this release to facilitate the development of games for the platform.

Other features/built-in applications included:[3]

See also[edit]


  1. ^ a b "Windows Mobile 2003". Microsoft Product Lifecycle. Microsoft Docs. Retrieved April 11, 2022.
  2. ^ De Herrera, Chris. "Windows CE/Windows Mobile Versions". Retrieved September 6, 2007.
  3. ^ De Herrera, Chris. "Windows Mobile 2003". Pocket PC Magazine. Archived from the original on September 14, 2007. Retrieved September 14, 2007.