That's a nice question, but impossible to answer in a few sentences. But doesn't Windows already have the means to access a file on a remote PC via shares and copying it? That's all the average user needs.
Of course, it's different for a programmer. He has to take courses and study books to accomplish what he wants.
Know how to save a wet phone?
It's not with a dryer and it's not with rice. CNET shows you the secret to saving your phone.