thanks thedaver, I googled for conio.h (with no "debian", that was my fault I guess) and found lots of examples, but nothig regarding where is it.
Anyway, It have been a long time (may be 10 years?) the last time I coded in C/C++ and yes, I did it in DOS/Windows environment.
Reading the page you pointed me I realise that I'm pissing out of the wc (as we said here).
Thanks a lot!