Thanks very much Fuzzy, It's help a lot. That's exactly what I was looking for. I didn't know much about those handle stuff and what to do with. The next hurdle for me will be to understand and manage multiple threads, and it's good to know that one can find such helpful advices here.( and maybe also on your website, I'm just opening the main page and it's look like if there was much to see and learn...) Bye, Monty
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