I am developing the software for the manufacturer and he needs a \004 to trigger an event in the microcontroller.
If I press alt 004 in tera term and hyperterminal it works. I need to emulate that same sequence or character or byte to beable to communicate with the device. If you enter a "Alt 004" at the cursor on these 2 terminal programs, what is sent to the serialport?
BTW I am using VS2010 beta on Vista, could that also be a factor?

Thanks I changed ASCIIEncoding to UTF8Encoding now it works perfectly. I used a serial port monitor to capture the returned data. Exactly as it should be. Problem now, I can capture the data on the port monitor, but where is it going in my code. I need to read it into an array and then acess it to draw a graph. Any Ideas on how and where I should code it?

this resolved my problem for receiving and displaying the data
http://social.msdn.microsoft.com/For...0-863ccd4c67f3
thanks for the help