OK, for a test, set the value to 1.
In the Oncomm=2 event, test for the terminating character. If present, process the string.
Does it fire now?

>It is. The issue, like I said, is that if the user scans a code 39 bar code the length could be either 21 or 24 characters. If the user user scans a 2D bar code then the length could be as big as 185 characters. So, I changed the RThreshold value to 185.
>
>>Check to make sure your RThreshold property of the Comm control is set to something > 0.
>>