• C

Writing a file from a com port

My problem is that I need to right a file being read from the com port of a DOS based machine.  The write program has to be a TSR program as I have to run another important program at the same time which cannot be closed down to receive the file.
Any ideas on how to do this??

ps. Code would be good if possible.
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Hi ScotDance;

I've got three questions.

1. Do you need help on the COM port i/o, TSRs or both?
2. Are you able to alter the other program?
3. How fast is the data coming in the COM port? (only applicable if you want help on the COM port i/o).

Very good code you can find in
I hope, it helps. Alex

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scotdanceAuthor Commented:
1. On both.
2. Yes can alter the other program.
3. 9600 baud rate.
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