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Microsoft ActiveSync

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ActiveSync 3.1 is dramatically easier to install and use because of a complete redesign of its communications architecture and user interface and improvements to its synchronization speed and overall performance.

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File Name:
Microsoft Corporation
Download Size:
3.83 MB
Release Date:
English (United States)
Number of Downloads:
Added By:
C:Amie on 05/07/2009 2:56:48 PM


ActiveSync 3.1 eliminates the need to install Dial-up Networking on any supported version of Windows and eliminates the need to enable remote access server (RAS) on the Windows NT® or Windows 2000 operating systems. Now, you can install ActiveSync 3.1 with as few as six mouse clicks, without having to reboot your PC or device. By automatically detecting serial devices, ActiveSync 3.1 gives you the unprecedented ability to free up serial ports on a PC for another type of serial device, such as a digital camera. This allows customers to interface with all the devices they need through a single serial or infrared port. In addition, when you upgrade, ActiveSync automatically detects changes made to supported Personal Information Manager (PIM) software. For example, this allows you to automatically upgrade from Schedule+ to Microsoft Outlook without having to reconfigure your synchronization settings.

New! Outlook Security and USB updates
If you have ActiveSync 3.1 build #9386 or build #9439 and you are unable to connect your Windows Powered Device to your desktop PC or laptop via a USB connection, you may need to download the latest version of ActiveSync 3.1 (build #9587). In addition, if you have installed the Outlook 98 or Outlook 2000 Security Update you may also need to download ActiveSync build #9587. For more information on the above issues, please see the following KB article.

Faster Performance
With ActiveSync 3.1, you now can set the PC connection speed from 19.2KBps to 115KBps. ActiveSync will automatically detect the selected port speed and update the PC's serial port to match it. Further, ActiveSync 3.1 will automatically detect and configure the port that is used to connect a device to a PC, whether a serial port or an infrared port is chosen. In addition to serial and infrared connections, ActiveSync 3.1 supports Ethernet and dial-up connections and supports both wired and wireless implementations of those standards.

If you use AvantGo and have installed an upgrade (such as the AvantGo Security Upgrade for Pocket PC devices), installing ActiveSync 3.1 will prevent AvantGo from syncing properly. To fix this problem, please reinstall the latest version of AvantGo.

System Requirements:

ActiveSync 3.1 supports Microsoft Windows 95, Windows 98 (including Second Edition), Windows Me and Windows 2000 Professional Edition. ActiveSync 3.1 also supports Microsoft Office 95, Office 97 and Office 2000, including Outlook 97, Outlook 98 and Outlook 2000.


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