Page "Windows Mobile" Paragraph 17

Windows Mobile 2003, originally codenamed " Ozone ", was released on June 23, 2003, and was the first release under the Windows Mobile banner.

It came in four editions: " Windows Mobile 2003 for Pocket PC Premium Edition ", " Windows Mobile 2003 for Pocket PC Professional Edition ", " Windows Mobile 2003 for Smartphone " and " Windows Mobile 2003 for Pocket PC Phone Edition ".

The last was designed especially for Pocket PCs which include phone functionalities.

The Professional Edition was used in Pocket PC budget models.

It lacked a number of features that were in the Premium Edition, such as a client for L2TP / IPsec VPNs.

Windows Mobile 2003 was powered by Windows CE 4. 20.