Good to see you aren't stupid enough to be trying to develop something illegal and give up your own IP ... gratz you get a +1 for IQ in my books and the the authorities may not kick in your door one evening.
That is not a valid way to compare strings in C. You need to use one of the string compare functions: see strcmp, wcscmp, _mbscmp[^]. It is also a bad idea to use the goto statement, use loops instead.
I have an application in Visual C++ 6.0, but I need to send an arrangement of bytes to another computer through a net cable, using socket. Please that somebody please tells me how to make it or that they show me an example.