This tool allow you to view and control PocketPC/Smartphone from your computer. It is part of Windows Mobile Developer Power Toys .
After installing, copy the two files (cerdisp2.exe and KillProc.exe) from C:Program FilesWindows Mobile Developer Power ToysActiveSync_Remote_Displaydeviceswce400armv4t to your device’s Windows folder.
Run the ActiveSync Remote display tools (make sure that the device is connected via ActiveSync) from Start->Programs. Several prompts may appear on the device and you may need to try several times. Finally the tools will complain “the CPU or OS is unknown”. Just click OK and everything will be fine. An alternative is to use Pocket Controller Pro or run a VNC Server on the device.