>I have a program that reads from com1 thru Microdsoft Communication Control.The problem is that when the program is minimized it does not read from com. I use the event driven method on OnCommEvent cheking for CommEvent=2.

You're going to need to adjust the priority that the program runs at, as when it's minimized, it tends not to be the foreground program, and as a result, you may encounter buffer overruns or failures to respond in an adequately timely fashion to events.