simpe USB programming on Windows?

[gth759k]

I'm not new to c++ but I've never done anything with usb before and I've been browsing the web for hours and I can't find any simple tutorials on usb programming. I don't need to know 50 pages of usb specifications! I just want to do the absolute simplest thing. I have a usb cord cut from an old hub that reads 5 volts on my multimeter. How would I do something really, REALLY simple, like turn the 5 volts on and off?

[Allon]

I have new hardware programming (especially USB), so please forgive me and my problems. I use C + +, I need to send / receive some data to / from a USB port on the microprocessor board (an array of bytes).
Now, I did some serial port programming, I know, a serial port, you must open a port, install, execute I / O, and finally close the port. I guess using a USB port, it is not simple, as I mentioned above.