Windows Mobile



Windows Mobile OS 

Windows Mobile is a compact operating system combined with a suite of basic applications for mobile devices based on the Microsoft Win32 API. Devices that run Windows Mobile include Pocket PCs, Smart phones, Portable Media Centers, and on-board computers for certain automobiles. It is designed to be somewhat similar to desktop versions of Windows, feature-wise and aesthetically. Additionally, third-party software development is available for Windows Mobile. Originally appearing as the Pocket PC 2000 operating system, Windows Mobile has been updated several times, with the current version being Windows Mobile 6.1, and a new release scheduled for 2009. 

Microsoft projected in 2008 that shipments of devices with Windows Mobile will increase from 11 million to 20 million units, but it missed its initial goal in only selling 18 million licenses citing the delayed launch of certain smart phones. Windows Mobile's market share as an operating system for smart phones worldwide has fallen from 23% in 2004 down to 12% in 2008. Windows Mobile has a worldwide Smartphone market share of 13% now. Microsoft licenses Windows Mobile to four out of the world's five largest mobile phone manufacturers, with Nokia being the other. 

Windows Mobile 6 is a platform for mobile devices, based on Windows CE 5.0, and used in a wide variety of third party hardware, such as Personal digital assistants (PDAs) and smart phones. Microsoft Visual Studio 2005 and the Windows Mobile SDK, make it possible to create software for the Windows Mobile platform in both native (Visual C++) and managed (Visual C#, Visual Basic .NET) code. 

Windows Mobile extends the familiarity of the Windows desktop to Windows Mobile powered devices. Windows Mobile is based on Windows Embedded CE and supports the .NET Compact Framework. By using the Windows Mobile platform, you can build innovative applications for mobile devices. The platform offers features such as data connectivity that is seamless and has enhanced security; rich API support such as Bluetooth and the Pocket Outlook Object Model (POOM); an extensive range of programming models that includes native code, managed code, and mobile web development; and device resources such as multithreading. You can reduce development time and costs by taking advantage of a familiar Windows development environment, a consistent programming model and comprehensive technical resources. 

Windows Mobile runs on multiple hardware platforms including Pocket PCs, smart phones, Portable Media Center, and automobiles. These hardware platforms did not always exist from the inception of Windows Mobile.

Pocket PC

The Pocket PC was the original intended platform for the Windows Mobile operating system. These devices consisted of both standalone Pocket PC devices without mobile phone capabilities, and those that included mobile phone capabilities. The most current name of Windows Mobile intended for use on Pocket PCs is officially "Windows Mobile 6 Professional" for devices with mobile phone capabilities and "Windows Mobile 6 Classic" for devices without mobile phone capabilities.


The Smart phone became the next hardware platform after the Pocket PC to run Windows Mobile, and debuted with the release of Pocket PC 2002. Although in the broad sense of the term "Smartphone", both Pocket PC phones and Microsoft branded Smartphones each fit into this category, it should be noted that Microsoft's use of the term "Smartphone" includes only more specific hardware devices that differ from Pocket PC phones.


Intended to be operated more efficiently with only one hand, and typically had lower resolution displays than Pocket PCs. Microsoft's focus for the Smartphone platform was to create a device that functioned well as a phone and data device in a more integrated manner. The current name of Windows Mobile intended for use on Smartphones is officially "Windows Mobile 6 Standard".

Portable Media Center

The Portable Media Center was a device that focused on integration with Microsoft's Windows Media Center and Windows Media Player to allow users to carry their media libraries with them on the go. The Portable Media Center was officially introduced in 2004, and ran a modified version of Windows Mobile. These devices became the predecessor to Microsoft's Zune, and after 2006 Microsoft discontinued the project in favor of the latter.

Windows Mobile 2003 

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 such as the iPAQ rz1700 series. 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. 

New features/built-in applications included the following: 

  • Support for add-on keyboards
  • Enhanced communications interface with Bluetooth device management
  • Bluetooth file beaming support
  • Bluetooth headset support
  • Pictures application with viewing, cropping, e-mail, and beaming support
  • Jawbreaker game
  • Enhanced Pocket Outlook with vCard and vCal support
  • Improved Pocket Internet Explorer
  • Windows Media Player 9.0 with streaming optimization
  • SMS reply options for Phone Edition
  • MIDI file support as ringtones in Phone Edition

Windows Mobile 5

Windows Mobile 5.0, originally codenamed "Magneto”was released at Microsoft's Mobile and Embedded Developers Conference 2005 in Las Vegas, May 9–May 12, 2005. Microsoft plans to offer mainstream support for Windows Mobile 5 through October 12, 2010, and extended support through October 13, 2015. It was first offered on the Dell Axim x51. It is powered by Windows CE 5.0 and used the .NET Compact Framework1.0 SP3 — an environment for programs based on .NET.                                           

Windows Mobile 5.0 included Microsoft Exchange Server "push" functionality improvements that worked with Exchange 2003 SP2.The "push" functionality also required vendor/device support  With AKU2 software upgrades all WM 5.0 devices supported DirectPush. WM 5.0 featured increased battery life due to Persistent storage capability. Previously up to 50% (enough for 72 hours of storage) of battery power was reserved just to maintain data in volatile RAM. 

This continued the trend of Windows-based devices moving from using RAM as their primary storage medium to the use of a combination of RAM and flash memory (in use, there's no distinction between the two apparent to the user). Programs and frequently accessed data run in RAM, while most storage is in the flash memory. 

 The OS seamlessly moves data between the two as needed. Everything is backed up in the flash memory, so unlike previous devices, WM5 devices don't lose any data if power is lost. With Windows Mobile 5.0, OS updates were released as Adaptation kit upgrades. AKU3.5 is the most current release. In performance, it was generally much slower and less stable than the previous WM2003SE, especially on older devices "upgraded" to WM5 but even on native WM5 devices. New features/built-in applications included the following: 

  • A new version of Office called "Office Mobile"
  • PowerPoint Mobile
  • Graphing capability in Excel Mobile
  • Tables and graphics insertion in Word Mobile
  • Windows Media Player 10 Mobile
  • Photo Caller ID
  • DirectShow support
  • Picture and Video package, which converged the management of videos and pictures
  • Enhanced Bluetooth support
  • Global Positioning System (GPS) management interface
  • Microsoft Exchange Server "push" functionality improvements
  • Default QWERTY keyboard-support
  • Error reporting facility similar to that present in desktop and server Windows systems
  • ActiveSync 4.2 with 15% increased synchronization speed
  • Persistent storage (PS) support in Pocket PCs
  • Increased battery life

 Windows Mobile 6

 Windows Mobile 6, formerly codenamed "Crossbow",was released on February 12, 2007 at the 3GSM World Congress 2007. It comes in three different versions: "Windows Mobile 6 Standard" for Smartphones (phones without touchscreens), "Windows Mobile 6 Professional" for Pocket PCs with phone functionality, and "Windows Mobile 6 Classic" for Pocket PCs without cellular radios. 

Windows Mobile 6 is powered by Windows CE 5.0 (version 5.2) and is strongly linked to Windows Live and Exchange 2007 products. Windows Mobile 6 Standard was first offered on the Orange's SPV E650, while Windows Mobile 6 Professional was first offered on the O2's Xda Terra. Aesthetically, Windows Mobile 6 was meant to be similar in design to the then newly released Windows Vista. Functionally, it works much like Windows Mobile 5, but with much better stability. New features/built-in applications include the following: 

  • 320x320 and 800x480 (WVGA) screen resolution support
  • Office Mobile support for Smartphones
  • Operating System Live Update
  • Improved Remote Desktop access (Available for only certain Pocket PCs)
  • VoIP (Internet calling) support with AEC (Acoustic Echo Cancelling) and MSRT Audio Codec
  • Windows Live for Windows Mobile
  • Customer Feedback option
  • Enhanced Microsoft Bluetooth Stack
  • Storage Card Encryption (encryption keys are lost if device is cold-booted).
  • Smartfilter for searching within programs
  • Improved Internet Sharing
  • HTML email support in Outlook Mobile
  • Search ability for contacts in an Exchange Server Address Book
  • AJAX, JavaScript, and XMLDOM support on Internet Explorer Mobile
  • Out of Office Replies with Microsoft Exchange 2007
  • Unlicensed Mobile Access (UMA) support for select operators
  • Server Search on Microsoft Exchange 2007
  • .NET Compact Framework v2 SP2 Preinstalled in ROM
  • Microsoft SQL Server 2005 Compact Edition Preinstalled in ROM
  • OneNote Mobile as a companion to Microsoft Office OneNote
  • Office Mobile 6.1 announced with support for Office 2007 document formats (pptx, docx, xlsx). 

This are the type of Windows Mobile OS supported platforms and applications and versions of it.            In next few months Microsoft also releasing the latest version of OS called Windows Mobile OS 6.1 and this will with backward compatibility and also many new features.

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