During my "Welcome to the World of Windows Mobile" presentation at the Atlanta Code Camp 2008 I used Remote Display for Windows CE to allow the attendees to see my device, on my desktop, on the presentation screen. After my talk was over, a few people from the audience approached me, and asked me how I was able to run Remote Display on Vista, and connect with it to my Windows Mobile 6 device.

They told me they had tried to do the same thing, but all they ever got was a "the OS or CPU of this device is unknown to this application" error. I explained that this wasn't due to Vista, but actually was caused by a missing file on most newer Windows Mobile devices.

In order to use Remote Display the first thing you will need to do is download the Windows Mobile Developer Power Toys, and install the ActiveSync Remote Display application.

Windows Mobile Developer Power Toys

ActiveSync Remote Display - Display Pocket PC applications on your desktop or laptop without needing any device side configuration.

Work Around:

Copy the cerdisp2.exe file from the desktop's "\Windows Mobile Developer Power Toys\ActiveSync_Remote_Display\Devices\wce400\armv4\" folder, and paste it into the device's "\windows" folder of your Windows Mobile device.