OK, since this board seems dead, and no one have the answer, also google seems unable to help me either. I decide to make a Windows gadget on my own.
here's the result (Clock and Date). not really smooth and have no drop shadow yet. but at least it's already provide the basic functionality.
also i can save some space on the taskbar by removing the clock and date.
thanks to the "not-low-tier" guy above who inspired me.