It is a collection of updates, fixes and enhancements to the tools delivered to hardware device manufacturers to create or update devices based on a specific platform.
This term is used by Microsoft to designate the current update version for a particular embedded platform such as Windows Mobile which is used for personal digital assistants and smartphone devices. On the Windows Mobile platform the AKU is to Windows Mobile what a service pack is to Microsoft Windows.
Microsoft releases AKUs to allow device manufacturers with updates to create new products or fix issues with older products. These enhancements are usually not available to the consumer or end user unless released as a firmware update from the vendor.
Messaging and Security Feature Pack (MSFP), including DirectPush email functionality[1] and GZIP compression
Internet Explorer Mobile adds accelerated scrolling, Fast Back feature, support for compiled WML, WMLScript over HTTP, enhanced DOM standard[1] and frames
added SMIME support for messaging
added wireless manager to turn wireless features on and off
replaced clock with battery status indicator in the upper right corner
AKU 2.1
dynamic switching between screen modes (landscape and portrait).[1]
Latest and the last update for Windows Mobile from Microsoft. Released in December 2010. AKU Build 23148
AKU 5.3.10
AKU Build 23145
AKU 5.0.60
AKU Build 21840
AKU Versions for Windows Embedded Handheld
It is important to note that Windows Mobile is succeeded by Windows Phone in consumer electronics segment and Windows Embedded Handheld for industrial electronics. Windows Embedded Handheld starts with AKU 5.3.12. Windows Embedded Handheld is meant to carry on the Windows Mobile for rugged handhelds and is only a change in AKU over Windows Mobile 6.5. Unlike Windows Phone, WEH is compatible with WM 6.5.[6][7]
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