Hi, Naoto:

I strongly thank you very much. All this time I was feeling alone on a desert island...

Before reading your reply I was testing with Winsock since the technical suppor (it's a way to name it) told me it's not necesary to know C++ for that. But he didn't tell me I have to use winsock.

Now I could receive data from the aparatus but I have to test for sending data to it.

Well, once more, thank you very much.

Héctor