ActiveSync OS Design Development
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8/28/2008
The ActiveSync functionality in Windows Embedded CE provides support for synchronizing data between a Windows-based desktop computer and Windows Embedded CE–based devices. Using time stamps and user preferences, the synchronization process tracks data changes on both computers, and then transfers the appropriate data so that each computer has the most recent versions. Outdated or unwanted data is discarded.
OS Design Information
The following table shows operating system design information for ActiveSync.
| Concept | Description |
|---|---|
Dependencies |
Desktop side Microsoft ActiveSync® version 3.5 or later is required. |
Hardware considerations |
A serial or USB cable connection is needed for the first synchronization. Subsequent synchronizations can also use IrDA or Ethernet connections. |
Modules and Components
The following table shows the components and modules that implement ActiveSync.
| Item | Module | Component |
|---|---|---|
Base Synchronization |
systemcpl, eventrst, rapisrv, repllog, rra_stm |
None |
File Synchronization |
cefobj |
None |
Mail and PIM (POOM) synchronization |
pegobj |
None |
Installer and Uninstaller |
wceload, unload |
None |
ActiveSync Implementation Considerations
The following table shows the Sysgen variables that control ActiveSync.
| Sysgen variable | Description |
|---|---|
SYSGEN_AS_BASE |
Adds base synchronization components and the application installer and uninstaller. |
SYSGEN_AS_FILE |
Adds the file synchronization component. |
SYSGEN_AS_MAIL |
Adds synchronization for Inbox mail component. |
SYSGEN_AS_PIM |
Adds synchronization for Inbox contacts, tasks, and appointments. |
By default, Repllog.exe is set up to be notified of any communications port events (NOTIFICATION_EVENT_RS232_DETECTED). If the driver sends this event, Repllog.exe starts automatically with the default parameters, as defined in the following section of datasync.db.
; @CESYSGEN IF DATASYNC_MODULES_REPLLOG
Record :
Field : 0001001f : "repllog.exe"
Field : 0002001f : "AppRunAtRs232Detect"
Field : 00030013 : 9
End
; @CESYSGEN ENDIF
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