Changes in ActiveSync 4.5 Beta 2 help resolve issues related to setup, partnerships, and connectivity with the PC and Microsoft Exchange. In addition, it includes a troubleshooter utility that scans your computer and device to identify problems and offers information and corrective actions to solve them.
ActiveSync 4.5 Beta 2 supports PC sync via USB cable, Bluetooth, or infrared connection.
Tools and Utilities
4.5 beta 2
Product page: here