I have been searching high and low for a way to get my silverlight application talking to the COM port on my local computer. Has anybody out there been able to get Silverli
Silverlight 4 enables you to communciate with COM (ActiveX). I have written a blog article about how to communicate with a COM library that supports communicating with the serial port.
http://tech-michael.blogspot.com/2009/12/silverlight-talking-to-arduino.html
Note that the ActiveXperts-object mentioned is commercial.