John Ferrell wrote: > Thank you, I am continuing to pursue all pointers! Have you had any luck with the MS tools? The SerialPort component is very easy to use. Bob Blick sent me some code to test AsyncPro. I haven't been able to crash it (yet), but the results are not conclusive, since I wasn't able to crash one of our in-house programs either (it definitely crashed before). I'll test Bob's example code some more when we start porting our Delphi stuff to C++/C#. Vitaliy -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist