My Mobiler is a great piece of freeware! When run with Activesync you are able to get a copy of your PocketPC screen onto your Desktop. You can then fully interact with it using your desktop mouse and keyboard. So far I have sent SMS, browsed on PIE , logged onto MSN and watched a movie (albeit sideways) on my D810, all from my Desktop. The program also allows you to drag and drop files and comes with a handy screen capture feature as well.
Link: My Mobiler