RS 232C Port Programming

I'm Just wondering if anybody could help me and give me a way to send spesifec signals through a RS-232C Serial port on a Dos or windows platform
and thanks for help
ala_83Asked:
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guntherothkCommented:
You'd need to be specific. Are you saying you want to send a certain character stream, or a break, or twiddle CTS like it was a 1-bit parallel port, or what. What do you mean by signals?
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ala_83Author Commented:
will ok,
to be more specific, I'm trying to send some commands (8-bit) to a servo so I control a CNC machine from my computer, but i know nothing about programming serial ports thats it
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